阅读说明：本技术 光转向机构以及带有光转向机构的摄像单元及其应用 (Light deflection mechanism, camera unit with light deflection mechanism and use thereof ) 是由 方银丽 姚立锋 陈振宇 季昂 吴雨榕 于 2018-06-29 设计创作，主要内容包括：本发明提供了一光转向机构以及带有光转向机构的摄像单元及其应用,其中所述光转向机构包括一光处理元件和一转向基座以及具有一存留空间,其中所述光处理元件用于将光线转向,所述光处理元件具有一反射面,所述光处理元件被支撑于所述转向基座并且所述转向基座被驱动转动时带动所述光处理元件随之转动,所述存留空间形成于所述光处理元件的所述反射面和所述转向基座之间,以有利于光线在所述反射面的全反射。(The invention provides a light steering mechanism, an image pick-up unit with the light steering mechanism and application thereof, wherein the light steering mechanism comprises a light processing element and a steering base, the light processing element is used for steering light, the light processing element is provided with a reflecting surface, the light processing element is supported on the steering base and drives the light processing element to rotate along with the steering base when the steering base is driven to rotate, and the reserved space is formed between the reflecting surface of the light processing element and the steering base so as to facilitate total reflection of the light on the reflecting surface.)

1. A light redirecting mechanism for use in a camera unit, comprising:

a light management component for redirecting light and a redirecting base having a reflective surface, the light management component being supported by the redirecting base and being driven to rotate by the redirecting base to rotate therewith, and a retention space formed between the reflective surface of the light management component and the redirecting base.

2. The light redirecting mechanism of claim 1, further comprising an elastic support, wherein the elastic support is positioned between the light management component and the redirecting base, wherein the elastic support has a support surface, wherein the support surface and the reflective surface are disposed opposite one another, and wherein the void is formed between the reflective surface and the support surface, wherein the support surface includes a support region and a non-support region, wherein the support region protrudes from the non-support region, and wherein the light management component is supported directly on the support region.

3. The light redirecting mechanism of claim 2, wherein the reflective surface has a total reflection area and an illumination area, wherein the total reflection area is entirely contained by the illumination area, and wherein a reflectance of at least a portion of the supporting surface corresponding to the portion of the reflective surface that is contained in the illumination area but not contained in the total reflection area is set higher than a reflectance of other at least a portion of the supporting surface.

4. The light redirecting mechanism of claim 2, wherein the reflective surface has a total reflective area and an illumination area, wherein the total reflective area is entirely contained by the illumination area, and wherein the reflectivity of at least a portion of the supporting surface corresponding to the illumination area is set higher than the reflectivity of at least another portion of the supporting surface.

5. The light redirecting mechanism of claim 2, wherein the support region has a continuous plane.

6. The light redirecting mechanism of claim 2, wherein the support region has a plurality of discontinuous planes.

7. The light redirecting mechanism of any one of claims 3 to 6, wherein the reflectivity of at least a portion of the support surface corresponding to a lower one of the illuminated regions is configured to be greater than the reflectivity of at least a portion of the support surface corresponding to an upper one of the illuminated regions.

8. The light redirecting mechanism of claim 7, wherein the reflectivity of the unsupported areas corresponding to the illuminated areas is configured to increase as the height of the illuminated areas decreases.

9. The light redirecting mechanism of claim 7, wherein the resilient support comprises an inner frame, an outer frame, and a plurality of first limit connections, wherein the support surface is formed on the inner frame, the first limit connections being spaced apart between the inner frame and the outer frame and supporting the inner frame on the outer frame.

10. The light redirecting mechanism of claim 9, wherein the inner frame has a reflective surface, wherein the reflective surface and the reflective surface of the light management component are disposed opposite each other, and wherein the reflective surface is a concave curved surface.

11. The light redirecting mechanism of claim 9, wherein the inner frame has a through hole, wherein the through hole is provided to have an extent not smaller than an extent of the total reflection area and not larger than an extent of the illumination area.

12. The light redirecting mechanism of claim 11, wherein the inner frame comprises a first support frame and a second support frame, wherein the first support frame is positioned to correspond to a perimeter of the reflective surface, the second support frame is configured to extend inwardly from the first support frame, wherein the second support frame is coupled to the first support frame, and the through-hole is formed in the second support frame.

13. The light redirecting mechanism of claim 12, wherein the inner frame further comprises a plurality of second limit connectors, wherein the second limit connectors are formed at intervals between the first support frame and the second support frame, and wherein one end of the second limit connectors is connected to the first support frame and the other end of the second limit connectors is connected to the second support frame.

14. The light redirecting mechanism of claim 5 or 6, wherein the flexible support has a through hole, wherein the reflective surface has a total reflection area and an illumination area, wherein the total reflection area is entirely contained by the illumination area, and wherein the through hole has a larger extent than the illumination area.

15. The light redirecting mechanism of claim 14, wherein at least a portion of the support surface of the resilient support is blackened.

16. The light redirecting mechanism of claim 14, wherein the resilient support comprises an inner frame, an outer frame, and a plurality of first limit connectors, wherein the support surface is formed on the inner frame, the first limit connectors being spaced apart between the inner frame and the outer frame and supporting the inner frame on the outer frame, wherein the through-holes are formed in the inner frame.

17. The light redirecting mechanism of any of claims 1 to 6, wherein the light redirecting mechanism further comprises an outer housing, wherein the redirecting base is rotatably coupled to the outer housing relative to the outer housing, and wherein the outer frame of the resilient support is coupled to the outer housing and is supported by the inner frame on the outer housing.

18. The light redirecting mechanism of any one of claims 1 to 6, wherein the light management component is a prism and the prism comprises a prism body and at least one retention bump, wherein the retention bump is formed on a side of the prism body and is coupled to the rotating base, and wherein the relative position of the prism and the rotating base is maintained by the coupling of the retention bump and the rotating base.

19. An imaging unit, comprising:

the light redirecting mechanism of any one of claims 1 to 18;

a lens assembly; and

and the light rays are deflected by the light steering mechanism and then pass through the lens assembly to be received by the photosensitive assembly.

20. A mobile electronic device, comprising:

an electronic device body; and

an image pickup unit provided to the electronic apparatus body, the image pickup unit comprising:

a light redirecting mechanism according to any one of claims 1 to 18;

a lens assembly; and

and the light rays are deflected by the light steering mechanism and then pass through the lens assembly to be received by the photosensitive assembly.

21. A method of manufacturing a light redirecting mechanism comprising the steps of:

holding a light processing element on a turning base in a manner that the light processing element can rotate along with the turning base and the relative position of the turning base and the turning base is fixed; and

an elastic support is disposed between the steering base and the light processing element, while a retention space is formed between the elastic support and the light processing element.

22. The method of claim 21, wherein a supporting region and a non-supporting region are formed on a supporting surface of the flexible support, wherein the supporting region is higher than the non-supporting region, and the supporting region is directly supported by the light processing element.

23. The method of manufacturing according to claim 22, wherein the non-support area of the resilient support is configured to have a concave curvature.

24. A method of operating a light redirecting mechanism comprising the steps of:

by means of a remaining space formed on one side of a reflection surface of a light processing element and located between an elastic support member and the light processing element, a total reflection occurs at least in part on the reflection surface.

25. The method of operation of claim 24, further comprising the steps of:

at least part of the light rays passing through the reflecting surface of the light processing element are reflected on a supporting surface of the elastic supporting member; and

part of the reflected light rays return to the light processing element.

26. The method of claim 25, wherein in the method, an illumination area of the light from the reflective surface does not belong to a total reflection area.

27. The method of claim 25 wherein said support surface is a concave curved surface.

28. The method of operation of claim 24, further comprising the steps of:

the light passing through the reflecting surface of the light processing element reaches a turning base after passing through a through hole of the elastic supporting piece.

Technical Field

The present invention relates to the field of optical imaging, and more particularly to a light redirecting mechanism and an imaging unit with the light redirecting mechanism and applications thereof.

Background

The image capturing performance of mobile electronic devices has been a focus of consumers and manufacturers, consumers want to obtain image capturing effects on mobile electronic devices that are comparable to those of single lens reflex cameras, and manufacturers are seeking to improve the image capturing performance of an image capturing unit of mobile electronic devices in order to meet the market demand.

The current factor limiting the camera shooting performance of the camera shooting unit of the mobile electronic device is the size of the camera shooting unit itself, because the space provided by the mobile electronic device itself is limited, and consumers also seek a light and thin experience, the camera shooting unit needs to keep the size not increased while keeping a high zoom magnification, however, the longer the general focal length is, the longer the required length of the camera shooting unit is, and in order to solve this problem, the periscopic camera shooting module is applied to the mobile electronic device.

Periscopic camera module turns to light through a light steering mechanism to reducing the height dimension of whole camera module, whole periscopic camera module can be designed with a great effective focal length simultaneously, and then has satisfied the demand of consumer to the high zoom magnification.

That is, in contrast to conventional tele camera modules, light from the object being photographed first passes through a light redirecting mechanism, which typically provides a prism, where it is reflected and refracted within the light redirecting mechanism and then passes through a lens before being received by a photosensitive element for imaging. How the light is handled by the light steering mechanism greatly influences the subsequent imaging effect, for example, once the light is lost after passing through the light steering mechanism, the light entering amount of the whole periscopic camera module is reduced, so that the imaging quality is poor, and therefore, how to improve the light steering mechanism to improve the working performance of the whole periscopic camera module is a problem needing attention.

Disclosure of Invention

It is an object of the present invention to provide a light redirecting device, as well as a camera unit with a light redirecting device and the use thereof, wherein the light redirecting device provides a light processing element and a storage space is provided on a side of a reflective surface of the light processing element to facilitate total reflection of light at the reflective surface.

Another object of the present invention is to provide a light redirecting mechanism and an image capture unit with the light redirecting mechanism and applications thereof, wherein the light redirecting mechanism provides an elastic support, wherein the elastic support corresponds to the reflective surface of the light management component to provide a restoring effect during the movement of the light management component, wherein the retention space is formed between the elastic support and the light management component to facilitate the subsequent total reflection on the reflective surface.

Another object of the invention is to provide a light redirecting mechanism and a camera unit with a light redirecting mechanism and the use thereof, in which the surface of the resilient support and the reflective surface of the light management element form a space between them into which an air medium can enter in order to facilitate the subsequent total reflection at the reflective surface.

Another object of the invention is to provide a light redirecting mechanism and a camera unit with a light redirecting mechanism and its use, wherein the resilient support is provided with a structure that is lower in the middle and higher in both sides to support the light management element at the periphery and leave a space for air to stay in the middle.

Another object of the present invention is to provide a light turning mechanism, an image pickup unit with the light turning mechanism and applications thereof, wherein at least a portion of the elastic support member is capable of reflecting light so as to supplement the light processing element with the amount of light entering.

Another object of the present invention is to provide a light redirecting mechanism, an image pickup unit with a light redirecting mechanism, and applications thereof, wherein the elastic support is capable of, in particular, supplementing the amount of light entering the periphery of the light processing element.

Another objective of the present invention is to provide a light steering mechanism, a camera unit with the light steering mechanism and applications thereof, wherein a middle position of the elastic supporting member is designed as a curved surface so that light reflected by the elastic supporting member has a converging tendency to obtain a better imaging effect.

Another object of the present invention is to provide a light turning mechanism, an image pickup unit with the light turning mechanism and applications thereof, wherein the elastic support member can supplement more light rays according to the portion of the light processing element with insufficient light input quantity.

Another object of the present invention is to provide a light turning mechanism, an image pickup unit with the light turning mechanism and applications thereof, wherein the elastic support can reduce stray light near the reflection surface of the light processing element while providing more gaps, so as to facilitate the later imaging effect.

According to an aspect of the present invention, there is provided a light redirecting mechanism for use in an imaging unit, comprising:

a light management component for redirecting light and a redirecting base having a reflective surface, the light management component being supported by the redirecting base and being driven to rotate by the redirecting base to rotate therewith, and a retention space formed between the reflective surface of the light management component and the redirecting base.

According to an embodiment of the present invention, the light processing device further includes an elastic supporting member, wherein the elastic supporting member is located between the light processing element and the turning base, wherein the elastic supporting member has a supporting surface, wherein the supporting surface and the reflecting surface are oppositely disposed, the remaining space is formed between the reflecting surface and the supporting surface, wherein the supporting surface includes a supporting region and a non-supporting region, wherein the supporting region protrudes from the non-supporting region, and the light processing element is directly supported by the supporting region.

According to an embodiment of the present invention, the reflection surface has a total reflection area and an illumination area, wherein the total reflection area is entirely included in the illumination area, and a reflectivity of at least a portion of the support surface corresponding to the reflection surface portion included in the illumination area but not included in the total reflection area is set to be higher than a reflectivity of other at least a portion of the support surface.

According to an embodiment of the present invention, the reflective surface has a total reflection area and an illumination area, wherein the total reflection area is entirely included in the illumination area, and the reflectivity of at least a portion of the supporting surface corresponding to the illumination area is set to be higher than the reflectivity of at least another portion of the supporting surface.

According to an embodiment of the invention, the support area has a continuous plane.

According to an embodiment of the invention, the support area has a plurality of discontinuous planes.

According to an embodiment of the present invention, a reflectivity of at least a portion of the supporting surface corresponding to the lower illumination area is set to be greater than a reflectivity of at least a portion of the supporting surface corresponding to the upper illumination area.

According to an embodiment of the invention, the reflectivity of the unsupported area corresponding to the illuminated area is arranged to increase with decreasing height of the illuminated area.

According to an embodiment of the present invention, the elastic supporting member includes an inner frame, an outer frame, and a plurality of first limit connectors, wherein the supporting surface is formed on the inner frame, and the first limit connectors are spaced apart from each other between the inner frame and the outer frame and support the inner frame to the outer frame.

According to an embodiment of the present invention, the inner frame has a reflecting surface, wherein the reflecting surface and the reflecting surface of the light processing member are oppositely disposed, and the reflecting surface is a curved surface which is recessed.

According to an embodiment of the present invention, the inner frame has a through hole, wherein an extent of the through hole is set to be not smaller than an extent of the total reflection area and not larger than an extent of the illumination area.

According to an embodiment of the present invention, the inner frame includes a first support frame and a second support frame, wherein the first support frame is disposed corresponding to a peripheral portion of the reflection surface, the second support frame is disposed to extend inward from the first support frame, wherein the second support frame is connected to the first support frame, and the through hole is formed in the second support frame.

According to an embodiment of the present invention, the inner frame further comprises a plurality of second spacing connectors, wherein the second spacing connectors are formed at intervals between the first support frame and the second support frame, and one end of the second spacing connector is connected to the first support frame and the other end is connected to the second support frame.

According to an embodiment of the present invention, the elastic supporting member has a through hole, wherein the reflective surface has a total reflection area and an illumination area, wherein the total reflection area is entirely contained by the illumination area, and the range of the through hole is larger than the illumination area.

According to an embodiment of the invention, at least a part of the supporting surface of the resilient support is blackened.

According to an embodiment of the present invention, the elastic support member includes an inner frame, an outer frame, and a plurality of first limit connectors, wherein the support surface is formed on the inner frame, the first limit connectors are spaced apart from each other between the inner frame and the outer frame and support the inner frame on the outer frame, and wherein the through hole is formed on the inner frame.

According to an embodiment of the present invention, the light redirecting mechanism further comprises a housing, wherein the redirecting base is rotatably connected to the housing relative to the housing, and the outer frame of the elastic support is connected to the housing and supported by the inner frame to the housing.

According to an embodiment of the present invention, the light processing member is a prism and the prism includes a prism main body and at least one stopper protrusion, wherein the stopper protrusion is formed on a side surface of the prism main body and is connected to the rotating base, and a relative position of the prism and the rotating base is maintained by the connection of the stopper protrusion and the rotating base.

According to another aspect of the present invention, there is provided an image pickup unit including:

the light redirecting mechanism of any one of the above claims;

a lens assembly; and

and the light rays are deflected by the light steering mechanism and then pass through the lens assembly to be received by the photosensitive assembly.

According to another aspect of the present invention, there is provided a mobile electronic device comprising:

an electronic device body; and

an image pickup unit provided to the electronic apparatus body, the image pickup unit comprising:

a light redirecting mechanism according to any one of the preceding claims;

a lens assembly; and

and the light rays are deflected by the light steering mechanism and then pass through the lens assembly to be received by the photosensitive assembly.

According to another aspect of the present invention, there is provided a method of manufacturing a light redirecting mechanism comprising the steps of:

holding a light processing element on a turning base in a manner that the light processing element can rotate along with the turning base and the relative position of the turning base and the turning base is fixed; and

an elastic support is disposed between the steering base and the light processing element, while a retention space is formed between the elastic support and the light processing element.

According to an embodiment of the present invention, in the above method, a supporting region and a non-supporting region are formed on a supporting surface of the elastic supporting member, wherein the supporting region is higher than the non-supporting region, and the supporting region is directly supported by the light processing element.

According to an embodiment of the present invention, in the above method, the non-supporting region of the elastic supporting member is configured to have a concave curved surface.

According to another aspect of the present invention, there is provided a method of operating a light redirecting mechanism comprising the steps of:

by means of a remaining space formed on one side of a reflection surface of a light processing element and located between an elastic support member and the light processing element, a total reflection occurs at least in part on the reflection surface.

According to an embodiment of the present invention, further comprising the steps of:

the light rays passing through the reflecting surface of the light processing element are reflected on a supporting surface of the elastic supporting piece; and

part of the reflected light rays return to the light processing element.

According to an embodiment of the present invention, in the above method, an illumination area of the light beam from the reflection surface does not belong to a total reflection area.

According to an embodiment of the present invention, the supporting surface is a concave curved surface.

According to an embodiment of the present invention, further comprising the steps of:

the light passing through the reflecting surface of the light processing element reaches a turning base after passing through a through hole of the elastic supporting piece.

Drawings

Fig. 1A is a perspective view of a camera unit according to a preferred embodiment of the invention.

Fig. 1B is a perspective view of a mobile electronic device according to a preferred embodiment of the invention.

Fig. 2 is an exploded view of the camera unit according to the above preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of the image pickup unit according to the above preferred embodiment of the present invention.

FIG. 4 is a schematic view of an elastic supporting member according to a preferred embodiment of the present invention.

FIG. 5A is a schematic view of an elastic supporting member according to a preferred embodiment of the invention.

FIG. 5B is a schematic view of an elastic supporting member according to a preferred embodiment of the invention.

FIG. 6 is a schematic view of an elastic supporting member according to a preferred embodiment of the present invention.

FIG. 7 is a schematic view of an elastic support according to a preferred embodiment of the present invention.

FIG. 8 is a schematic view of an elastic support according to a preferred embodiment of the present invention.

FIG. 9A is a schematic view of an elastic support according to a preferred embodiment of the invention.

Fig. 9B is a schematic cross-sectional view illustrating the use of the elastic support according to the above preferred embodiment of the present invention.

FIG. 10 is a schematic view of an application of a resilient support according to a preferred embodiment of the invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1A, fig. 1B to fig. 4, a mobile electronic device 1000 according to a preferred embodiment of the present invention is illustrated.

The mobile electronic device 1000 includes a camera unit 1 and an electronic device body 2, wherein the camera unit 1 is disposed on the electronic device body 2. The image pickup unit 1 is capable of receiving light from a subject to form an image.

The camera unit 1 includes a light steering mechanism 10, a lens assembly 20 and a photosensitive assembly 30, wherein light rays reach the lens assembly 20 after passing through the light steering mechanism 10 and are received by the photosensitive assembly 30 to obtain an optical image of a photographed object.

The light turning mechanism 10 includes a light processing element 11, an elastic support 12 and a turning base 13, wherein the light processing element 11 is supported on the turning base 13 through the elastic support 12. The light processing element 11 has an incident surface 111, a reflecting surface 112 and an exit surface 113, and light from the object enters the light processing element 11 through the incident surface 111, is reflected by the reflecting surface 112, and finally reaches the lens assembly 20 after leaving the light turning mechanism 10 through the exit surface 113. Preferably, the light redirecting mechanism 10 is capable of redirecting light 90 degrees before and after passing through the light redirecting mechanism 10. It is understood that after the camera unit 1 is configured in the mobile electronic device 1000, the light turning mechanism 10, the lens assembly 20 and the light sensing assembly 30 are respectively disposed to extend in the width direction of the mobile electronic device 1000, so that the size of the camera unit 1, especially the camera unit 1 with a larger focal length, in the thickness direction of the mobile electronic device 1000 is greatly reduced.

The turning base 13 can be driven to rotate and drives the optical processing element 11 and the elastic support 12 to rotate so as to change the optical path of light rays in the camera unit 1. The elastic support 12 has certain elasticity and is deformed when rotating along with the turning base 13, and has a tendency to return to its original shape. The light processing element 11 is supported by the elastic supporting member 12, in other words, the elastic supporting member 12 can drive the light processing element 11 and the turning base 13 to return to the original position.

The light redirecting mechanism 10 further includes a housing 14, wherein the housing 14 is directly connected to the lens assembly 20, wherein the housing 14 is disposed outside the light processing component 11, the resilient support 12, and the redirecting base 13 for protection and protection from contaminants such as dust. The two ends of the elastic support 12 are fixedly connected to the housing 14, respectively, the turning base 13 is capable of rotating within a certain angle in the housing 14 and relative to the housing 14, and the light processing element 11 is capable of rotating within a certain angle in the housing 14 and relative to the housing 14.

The turning base 13, the light processing element 11 and the housing 14 are designed with a distance to provide space for the turning base 13 and the light processing element 11 to rotate, respectively.

The turning base 13 has an inclined surface 131, wherein the inclined surface 131 is used for supporting the elastic support 12, the reflecting surface 112 of the light processing element 11 and the inclined surface 131 of the turning base 13 are oppositely arranged, and the reflecting surface 112 of the light processing element 11 is supported on the inclined surface 131 of the turning base 13 through the elastic support 12. It is understood that the structure and shape of the turning base 13 are not limited to the present invention, and the turning base 13 may be a triangular prism or a plate-shaped structure.

The light redirecting mechanism 10 has a void 100, wherein the void 100 is formed between the sloped surface 131 of the redirecting base 13 and the reflective surface 112 of the light management component 11. For the light processing element 11, the light first undergoes a refraction at the incident surface 111 and then enters the light processing element 11. Optionally, a pretreatment member, such as a coating capable of filtering a specific light or a protective layer for protecting the light processing element 11, may be disposed on the incident surface 111 of the light processing element 11. The light processing element 11 reaches the reflection surface 112, on the other side of the reflection surface 112, due to the existence of the storage space 100, an air medium can enter the storage space 100, so that one side of the reflection surface 112 is an optically dense medium, and the other side is an optically sparse medium (here, an air medium), so that the light enters the optically dense medium from the optically dense medium, and a part of the light can be totally reflected at a certain angle of incidence, so that a part of the light is totally reflected, the light reflected by the reflection surface 112 reaches the exit surface 113, and after the exit surface 113 is refracted once, the light leaves the light processing element 11 and then reaches the lens assembly 20.

It will be understood, of course, that other media may be present in the retention space 100, and not necessarily limited to air, even if the retention space 100 is under a vacuum or near vacuum, so long as the reflective surface 112 is maintained in a light tight and a light tight condition on either side of the reflective surface 112, respectively, such that the refractive index of the reflective surface 112 on the light management component 11 side is greater than the refractive index on the retention space 100 side during light passage from the light management component 11 to the retention space 100.

It is understood that the prism may be made of glass or resin.

The presence of the holding space 100 allows the light-treating component 11 to hold more air medium on the side of the reflecting surface 112, compared to the conventional light-redirecting mechanism 10, thereby facilitating the total reflection of light on the reflecting surface 112.

Further, the elastic supporting member 12 has a supporting surface 121, wherein the supporting surface 121 and the reflecting surface 112 of the light processing element 11 are disposed in a face-to-face manner. The retention space 100 is formed between the resilient support 12 and the light-processing element 11.

The supporting surface 121 has a supporting region 1211 and a non-supporting region 1212, wherein the supporting region 1211 is higher than the non-supporting region 1212, wherein the supporting region 1211 directly contacts the reflective surface 112 of the light processing element 11, and the non-supporting region 1212 does not contact the reflective surface 112 of the light processing element 11.

In this example, the elastic support 12 is designed to have a circular ring structure, and more specifically, at the middle position of the elastic support 12, the elastic support 12 has a through hole 1240 so that the reserve space 100 can be formed between the reflection surface 112 of the light processing element 11 and the inclined surface 131 of the turning base 13.

It is worth mentioning that the supporting surface 121 may be configured to be rugged, so that the space between the reflecting surface 112 of the light processing component 11 and the turning base 13 is larger, and can accommodate more air medium, so as to facilitate a total reflection at the reflecting surface 112 of the light processing component 11.

The elastic supporting member 12 includes an outer frame 122, at least one first position-limiting connecting member 123 and an inner frame 124, wherein the first position-limiting connecting member 123 is formed around the inner frame 124, one end of the first position-limiting connecting member 123 is connected to the inner frame 124, and the other end is connected to the outer frame 122. The outer frame 122 is directly connected to the housing 14 of the light redirecting mechanism 10. The light management component 11 is supported directly on the inner frame 124, the support surface 121 being formed on the inner frame 124. When the light processing element 11 is rotated by the turning base 13, the inner frame 124 is also rotated, but is restricted by the first limit connection 123, because the outer frame 122 directly connected to the outer housing 14 is fixedly connected to the outer housing 14, and thus the rotation of the inner frame 124 is restricted. In other words, the elastic support 12 provides a buffer effect for the rotation of the light processing component 11, so as to prevent the light processing component 11 from rotating suddenly under the driving of the turning base 13. On the other hand, when the light processing unit 11 is rotated to another angle by the turning base 13, the first limit connector 123 of the elastic support 12 is twisted while the driving force of the turning base 13 is weakened or disappeared to restore the light processing unit 11, and the inner frame 124 can be restored to the original position by the restored rotation of the first limit connector 123.

The light turning mechanism 10 further includes a driving element 15, wherein the driving element 15 can drive the turning base 13 to rotate, so as to drive the elastic supporting member 12 and the light processing element 11 to rotate, thereby changing the propagation direction of the light. The driving element 15 is respectively disposed on the steering base 13 and the housing 14, and generates a magnetic field when being energized to drive the steering base 13 located in the magnetic field to rotate.

Preferably, the first limit connector 123 is formed to be centrosymmetric around the inner frame 124, so that the first limit connector 123 can provide a balanced force when the inner frame 124 is reset.

In the camera unit 1, the housing 14 has a light inlet 140, wherein the light inlet 140 is formed above the incident surface 111 of the light processing element 11, the light enters the light processing element 11 after passing through the light inlet 140, and an illumination region 1121, i.e. a light illumination region, is formed on the reflection surface 112 of the light processing element 11 after the light enters the light processing element 11. The light beam further has a total reflection region 1122 on the reflection surface 112 of the light processing element 11, it is understood that the total reflection region 1122 mostly overlaps the illumination region 1121 and the total reflection region 1122 is entirely included in the illumination region 1121, but not all of the illumination regions 1121 are the total reflection regions 1122. Because the incident angle cannot reach the condition of total reflection in a part of the illumination region 1121, especially in the edge region of the illumination region 1121, in the conventional imaging unit 1, the obtained image edge may have a phenomenon of being dark.

In this example, the inner frame 124 has the through holes 1240, wherein the total reflection areas 1122 of the light management elements 11 correspond to the through hole 1240 locations, so as to provide more space for the air medium to remain in the total reflection areas 1122 to allow a better total reflection to occur in the total reflection areas 1122 of the light management elements 11.

Further, near the position of the through hole 1240, the inner frame 124 is provided with an enhanced region corresponding to the illumination region 1121 but not corresponding to the total reflection region 1122, wherein the enhanced region has a high reflectivity for light rays, so that light rays at the illumination region 1121 but not at the total reflection region 1122, that is, light rays which cannot be totally reflected at the reflection surface 112 of the light processing element 11, can be refracted at the reflection surface 112 to reach the enhanced region of the inner frame 124, and the enhanced region directly reflects the light rays back to the light processing element 11 to supplement the amount of light, thereby reducing the occurrence of dark portions at the edge of the final image.

The reflectivity of the reinforced region of the inner frame 124 may be enhanced by polishing or plating.

The shape of the through hole 1240 of the inner frame 124 may be square, circular, or polygonal.

Preferably, the through hole 1240 is formed in a circular shape, the area of the through hole 1240 is larger than the total reflection range but smaller than the illumination range, the reinforced area is formed near the position of the through hole 1240, and a certain distance is designed between the reinforced area and the reflection surface 112 to make a space between the reinforced area and the reflection surface 112 for more air medium to remain. That is, the projected area of the total reflection region 1122 at the position of the through hole 1240 is included in the area of the position of the through hole 1240, and the projected area of the illumination region 1121 at the position of the through hole 1240 includes the area of the position of the through hole 1240.

It will be appreciated that the reinforced region is located in the non-support region 1212 of the support surface 121 of the resilient support 12.

In this example, the inner frame 124 of the resilient support 12 is used to directly support the reflective surface 112 of the light management component 11. The inner frame 124 further includes a first support frame 1241 and a second support frame 1242, wherein the first support frame 1241 is located outside the second support frame 1242 and is directly connected to the first limit connector 123.

The inner frame 124 further includes at least one second limit connector 1243, wherein one end of the second limit connector 1243 is connected to the first support frame 1241 and the other end is connected to the second support frame 1242, that is, the second support frame 1242 is supported on the first support frame 1241 by the second limit connector 1243.

Preferably, the second supporting frame 1242 is provided in a circular ring structure, wherein the second supporting frame 1242 is provided to have a high reflectivity so as to supplement the amount of light entering and improve the occurrence of a dark portion at the edge of an image at a later stage. Alternatively, the outer diameter of the circular ring is corresponding to the illumination region 1121 of the reflection surface 112, and the inner diameter of the circular ring is corresponding to the total reflection region 1122 of the reflection surface 112 so that light rays from the illumination region 1121 but not belonging to the total reflection region 1122 can be reflected by the circular ring to play a role of supplementary illumination around the total reflection region 1122.

It should be noted that the annular second supporting frame 1242 may also function as a diaphragm, so that a lens closest to the light inlet 140 in the lens assembly 20 may be designed as a bare lens, that is, there is no need to limit the imaging range at the first lens, and a structural diaphragm of the lens assembly 20 may also be eliminated, so as to reduce the size of the entire lens assembly 20.

In this example, the first support frame 1241 forms the support region 1211, i.e. the position of the first support frame 1241 protrudes beyond the position of the second support frame 1242 to form the retention space 100 at the light treatment element 11 and at a location of the inner frame 124 other than the position of the first support frame 1241.

Further, the light processing element 11 of the light turning mechanism 10 includes a light processing body 114 and at least one limiting protrusion 115, wherein the limiting protrusion 115 is disposed to extend outward from a side surface of the light processing body 114.

Preferably, the position-limiting protrusion 115 is disposed from the side surface of the light processing body 114 close to the reflection surface 112.

The limiting protrusion 115 is matched to the rotating base so that the light processing element 11 does not slip off the inclined surface 131 of the rotating base when rotating with the rotating base. Optionally, the limiting protrusions 115 on both sides of the light processing main body 114 are engaged with the turning base 13.

In this example, a portion of the turn base 13 extends upward through the space between the outer frame 122 and the inner frame 124 of the elastic support 12 so that the stopper protrusion 115 from the light processing body 114 can be extended outward to be connected to the turn base 13.

When the light processing component 11 is implemented as a prism, the light processing body 114 is implemented as a prism body, and the prism includes the prism body and the limiting protrusion.

Referring to fig. 5A, an embodiment of the resilient support 12 according to the present invention is illustrated, with continued reference to fig. 1A, 1B-4.

Specifically, the light redirecting mechanism 10 includes the light processing element 11, the elastic support 12, the redirecting base 13 and the housing 14, wherein the housing 14 has the light entrance hole 140, and the light processing element 11, the elastic support 12 and the redirecting base 13 are sequentially adjacent to the light entrance hole 140.

The light processing element 11 is supported by the elastic support 12, and the elastic support 12 is supported by the housing 14. Specifically, both ends of the elastic support 12 are connected to the housing 14, respectively. The elastic support 12 is also supported by the steering base 13. The light turning mechanism 10 further includes the driving element 15, wherein the driving element 15 can drive the turning base 13 to rotate, so as to drive the elastic supporting member 12 and the light processing element 11 to rotate, thereby changing the propagation direction of the light.

The elastic support 12 includes an outer frame 122, an inner frame 124 and at least a first limit connector 123, wherein the outer frame 122 is directly connected to the outer frame 14 of the light turning mechanism 10, the inner frame 124 is used to support the light processing element 11, the first limit connector 123 has certain elasticity, and the inner frame 124 is supported on the outer frame 122 by the first limit connector 123.

Preferably, the inner frame 124 is shaped to match the reflective surface 112 of the light management component 11 so that the perimeter of the reflective surface 112 of the light management component 11 is fully supported by the inner frame 124 while saving as much mounting space as possible. The outer side of the inner frame 124 is provided to be protruded, and the protruded portions are provided to be protruded at the same height so that the light processing member 11 is smoothly supported to the elastic support member 12.

The elastic supporting member 12 has a supporting surface 121, wherein the supporting surface 121 has a supporting region 1211 and a non-supporting region 1212, and the supporting region 1211 is higher than the non-supporting region 1212.

The inner frame 124 includes a first support frame 1241, a second support frame 1242 and at least one second limit connection 1243, wherein the second support frame 1242 has a smaller area than the first support frame 1241, and the second support frame 1242 is connected to the first support frame 1241 through the second limit connection. That is, the projected area of the second support frame 1242 on the turning base 13 is included in the projected area of the first support frame 1241 on the turning base 13.

In this example, the inner frame 124 further includes a support protrusion 1244A, wherein the support protrusion 1244A is formed at a peripheral edge of the first support frame 1241 and the support protrusion 1244A has a top surface, and the top surface is a plane. That is, the support region 1211 is a continuous plane.

The light management component 11 is supported on the top surface. That is, the supporting area 1211 of the supporting surface 121 of the elastic support 12 is higher than the non-supporting area 1212, so that the retention space 100 is formed between the elastic support 12 and the reflecting surface 112 of the light processing element 11, and thus more air medium is retained.

Referring to fig. 5B, a modified embodiment of the elastic support 12 is shown. The elastic support 12 includes an outer frame 122, an inner frame 124 and at least a first limit connector 123, wherein the outer frame 122 is directly connected to the outer frame 14 of the light turning mechanism 10, the inner frame 124 is used to support the light processing element 11, the first limit connector 123 has certain elasticity, and the inner frame 124 is supported on the outer frame 122 by the first limit connector 123.

Preferably, the inner frame 124 is shaped to match the reflective surface 112 of the light management component 11 so that the perimeter of the reflective surface 112 of the light management component 11 is fully supported by the inner frame 124 while saving as much mounting space as possible. The outer side of the inner frame 124 is provided to be partially protruded, and the protruded portions are provided to be protruded at the same height so that the light processing member 11 is smoothly supported to the elastic support member 12.

The elastic supporting member 12 has a supporting surface 121, wherein the supporting surface 121 has a supporting region 1211 and a non-supporting region 1212, and the supporting region 1211 is higher than the non-supporting region 1212.

The inner frame 124 includes a first support frame 1241, a second support frame 1242 and at least one second limit connection 1243, wherein the second support frame 1242 has a smaller area than the first support frame 1241, and the second support frame 1242 is connected to the first support frame 1241 through the second limit connection. That is, the projected area of the second support frame 1242 on the turning base 13 is included in the projected area of the first support frame 1241 on the turning base 13.

The inner frame 124 further includes a support protrusion 1244B, wherein the support protrusion 1244B is formed at the first support frame 1241, and in the present embodiment, the support protrusion 1244B is formed at intervals at the first support frame 1241. In this way, on the one hand, more space can be left between the two support projections 1244B and, on the other hand, material of the inner frame 124 is also saved.

Preferably, in the case where the first support frame 1241 of the inner frame 124 has a rectangular shape, the support protrusions 1244B are formed at four corners of the inner frame 124. That is, the support region 1211 of the support surface 121 includes a plurality of discontinuous planes. The planes are at the same height to more firmly support the light management component 11.

Referring to fig. 6, there is shown another variant of the elastic support 12 according to the above-described embodiment of the invention, with continued reference to fig. 1A, 1B to 4. Specifically, the light turning mechanism 10 includes the light processing element 11, the elastic support 12, the turning base 13 and the housing 14, the housing 14 has a light inlet hole 140, wherein the light processing element 11 is supported on the turning base 13 and is supported on the turning base 13 through the elastic support 12. Further, the light processing component 11 is connected to the turning base 13 to prevent the light processing component 11 from moving relative to the turning base 13 during the turning process. The elastic support 12 is connected to the housing 14 while being supported by the turning base 13, and can buffer the rotation of the light processing element 11 and reset the light processing element 11 after the rotation.

The elastic support 12 includes the outer frame 122, the inner frame 124 and at least one first limit connector 123, wherein one end of the first limit connector 123 is connected to the outer frame 122, and the other end is connected to the inner frame 124. The inner frame 124 is positioned lower than the outer frame 122 so that the light management components 11 are supported on the outer frame 122. The inner frame 124 can provide a reflective area for the light management component 11 to supplement the amount of light entering the light management component 11.

The inner frame 124 comprises a first support frame 1241, a second support frame 1242 and at least a second limit connection 1243, wherein the second support frame 1242 is connected to the first support frame 1241 by the second limit connection 1243, wherein the second support frame 1242 corresponds to the illumination area 1121 of the light treatment element 11.

The second support frame 1242 comprises a second support frame upper portion and a second support frame lower portion, wherein the second support frame lower portion is configured to have a larger area so that the second support frame lower portion can provide more reflective area than the second support frame upper portion, thereby corresponding to the problem that the amount of light entering the reflective surface 112, especially the reflective surface lower portion, of the light processing component 11 is insufficient.

In other words, the elastic supporting member 12 has a through hole 1240, wherein the through hole 1240 is located at a middle position of the inner frame 124. Preferably, the entire elastic support 12 is a central symmetrical structure.

The through hole 1240 is divided into an upper through hole and a lower through hole, the through hole 1240 corresponds to the circular illumination region 1121 of the light processing element 11, and the lower through hole is set smaller than the upper through hole, so that the inner frame 124 portion formed at the lower through hole 1240 can reflect light at the illumination region 1121 to increase the amount of light entering from the lower portion of the illumination region 1121.

Referring to fig. 7, there is shown another variant of the elastic support 12 according to the above-described embodiment of the invention, with continued reference to fig. 1A, 1B to 4.

The light turning mechanism 10 includes the light processing element 11, the elastic supporting member 12, the turning base 13 and the housing 14, wherein the elastic supporting member 12 is located between the light processing element 11 and the turning base 13, the elastic supporting member 12 is located at an inclined position, the light processing element 11 has a reflective surface 112, and the turning base 13 has an inclined surface 131, wherein the reflective surface 112 corresponds to the inclined surface 131 of the turning base 13.

The light processing element 11 is supported by the turning base 13 through the elastic support 12. It is worth mentioning that the elastic supporting member 12 provides a retention space 100 to allow more air medium to be retained on the other side of the reflecting surface 112 of the light processing element 11, so as to better enable a total reflection of the light on one side of the reflecting surface 112 of the light processing element 11, thereby reducing the light refraction on the reflecting surface 112 and the loss of the incident light.

The elastic supporting member 12 includes an outer frame 122, an inner frame 124 and at least a first position-limiting connecting member 123, wherein the outer frame 122 is directly connected to the outer frame 14, and the inner frame 124 is supported on the outer frame 122 by the first position-limiting connecting member 123.

In this example, the inner frame 124 has a rectangular structure with a hollow center, wherein a through hole 1240 is formed in the middle of the inner frame 124, wherein the through hole 1240 corresponds to the illumination region 1121 of the reflection surface 112 of the light processing element 11.

The elastic support member 12 has a support surface 121, the support surface 121 is formed on the inner frame 124, wherein the support surface 121 faces the reflection surface 112 of the light processing element 11. The supporting surface 121 has a supporting region 1211 and a non-supporting region 1212, wherein the supporting region 1211 is directly supported by the reflecting surface 112 of the light processing element 11, and the non-supporting region 1212 faces the reflecting surface 112 of the light processing element 11 but does not directly support the reflecting surface 112 of the light processing element 11. In other words, the supporting region 1211 is located at a higher height than the non-supporting region 1212 so that the light processing element 11 is supported by the supporting region 1211 of the supporting surface 121 of the elastic supporting member 12. Optionally, the support area 1211 is located at the periphery of the support surface 121 so that a larger retention space 100 is formed near the through hole 1240, thereby retaining more air medium.

Referring to fig. 8, there is shown another variant of the elastic support 12 according to the above-described embodiment of the invention, with continued reference to fig. 1A, 1B to 4.

The light turning mechanism 10 includes the light processing element 11, the elastic supporting member 12, the turning base 13 and the housing 14, wherein the turning base 13 is rotatably connected to the housing 14, for example, connected to the housing 14 through a rotating shaft so that the turning base 13 can rotate relative to the housing 14, the turning base 13 has an inclined surface 131, wherein the inclined surface 131 is used for supporting the light processing element 11, and the light processing element 11 is fixed to the turning base 13 so that the turning base 13 drives the light processing element 11 to rotate together when rotating. The elastic support 12 is located between the light processing element 11 and the turning base 13, and the elastic support 12 supports the light processing element 11 on the turning base 13.

In the process that the turning base 13 drives the optical processing element 11 to rotate, the elastic support 12 has certain elasticity, on one hand, the elastic support 12 and the turning base 13 play a role in buffering, on the other hand, the elastic support 12 twists with the rotation of the turning base 13 but has a tendency of recovering deformation, so that the elastic support 12 can help the optical processing element 11 to rotate at an original position.

Specifically, the elastic support 12 includes an outer frame 122, at least a first limit connector 123 and an inner frame 124, wherein the outer frame 122 is directly connected to the housing 14, and the inner frame 124 is connected to the outer frame 122 through the first limit connector 123 and is supported on the housing 14, that is, while the steering base 13 rotates the elastic support 12, the inner frame 124 of the elastic support 12 rotates together with the steering base 13, and the outer frame 122 directly connected to the housing 14 hardly rotates. The first limit connector 123 is twisted or deformed with the rotation of the inner frame 124, the force for driving the turning base 13 to rotate needs to overcome not only the gravity of the turning base 13 itself but also the force from the elastic support 12, and during the process of returning the light processing element 11 and the turning base 13, the elastic support 12 can provide a force to help the light processing element 11 and the turning base 13 to return quickly.

In this example, the inner frame 124 is provided as a sheet-like structure, and the peripheral position of the inner frame 124 is provided higher than the middle position of the inner frame 124 so that the light-treating elements 11 are supported at the peripheral position of the inner frame 124 to form the retention space 100 between the elastic support member 12 and the light-treating elements 11 to retain more of the air medium. It is also possible that a partial circumferential position of the inner frame 124 is set higher than a middle position of the inner frame 124 so that the light-treating member 11 is supported at the partial circumferential position of the inner frame 124 to form the holding space 100 between the elastic support member 12 and the light-treating member 11 to hold more air medium.

In particular, the elastic support member 12 has a support surface 121, the support surface 121 is formed on the inner frame 124, wherein the support surface 121 faces the reflective surface 112 of the light processing element 11. The supporting surface 121 has a supporting region 1211 and a non-supporting region 1212, wherein the supporting region 1211 is directly supported by the reflecting surface 112 of the light processing element 11, and the non-supporting region 1212 faces the reflecting surface 112 of the light processing element 11 but does not directly support the reflecting surface 112 of the light processing element 11. In other words, the supporting region 1211 is located at a higher height than the non-supporting region 1212 so that the light processing element 11 is supported by the supporting region 1211 of the supporting surface 121 of the elastic supporting member 12. Optionally, the support area 1211 is located at the periphery of the support surface 121 so that a larger retention space 100 is formed near the through hole 1240, thereby retaining more air medium.

Alternatively, the inner frame 124 may be triangular, circular, or polygonal in shape.

Optionally, the area of the inner frame 124 is not smaller than the area of the reflective surface 112 of the light management component 11 so that the light management component 11 is fully supported to the inner frame 124. That is, the projected area of the reflection surface 112 on the inner frame 124 is included in the area of the inner frame 124.

It is worth mentioning that the illumination region 1121 of the inner frame 124 corresponding to the reflection surface 112 of the light processing element 11 is configured to have a high reflectivity so as to reflect the light transmitted through the reflection surface 112 back to the light processing element 11, thereby achieving the purpose of supplementing the amount of light entering.

With reference to fig. 9A and 9B, a further variant of the elastic support 12 according to the above described embodiment is shown, with continued reference to fig. 1A, 1B to 4.

The light turning mechanism 10 includes the light processing element 11, the elastic supporting member 12, the turning base 13 and the housing 14, wherein the turning base 13 is rotatably connected to the housing 14, for example, connected to the housing 14 through a rotating shaft so that the turning base 13 can rotate relative to the housing 14, the turning base 13 has an inclined surface 131, wherein the inclined surface 131 is used for supporting the light processing element 11, and the light processing element 11 is fixed to the turning base 13 so that the turning base 13 drives the light processing element 11 to rotate together when rotating. The elastic support 12 is located between the light processing element 11 and the turning base 13, and the elastic support 12 supports the light processing element 11 on the turning base 13.

In the process that the turning base 13 drives the optical processing element 11 to rotate, the elastic support 12 has certain elasticity, on one hand, the elastic support 12 and the turning base 13 play a role in buffering, on the other hand, the elastic support 12 twists with the rotation of the turning base 13 but has a tendency of recovering deformation, so that the elastic support 12 can help the optical processing element 11 to rotate at an original position.

Specifically, the elastic support 12 includes an outer frame 122, at least a first limit connector 123 and an inner frame 124, wherein the outer frame 122 is directly connected to the housing 14, and the inner frame 124 is connected to the outer frame 122 through the first limit connector 123 and is supported on the housing 14, that is, while the steering base 13 rotates the elastic support 12, the inner frame 124 of the elastic support 12 rotates together with the steering base 13, and the outer frame 122 directly connected to the housing 14 hardly rotates. The first limit connector 123 is twisted or deformed with the rotation of the inner frame 124, the force for driving the turning base 13 to rotate needs to overcome not only the gravity of the turning base 13 itself but also the force from the elastic support 12, and during the process of returning the light processing element 11 and the turning base 13, the elastic support 12 can provide a force to help the light processing element 11 and the turning base 13 to return quickly.

An intermediate position of the inner frame 124 is provided to be recessed downward, wherein the intermediate position of the inner frame 124 corresponds to the illumination area 1121 of the reflection surface 112 of the light processing element 11.

For the light reaching the light processing component 11, the incident angle of a portion of the light is smaller than a certain angle, and the light is semi-reflected on the reflective surface 112 of the light processing component 11, that is, there is a portion of the light incident on the elastic support 12 through the reflective surface 112, and the inwardly recessed portion of the inner frame 124 corresponds to an illumination region 1121 of the reflective surface 112 of the light processing component 11, so that the light reaches the elastic support 12 through the reflective surface 112, and since the reflective surface provided by the elastic support 12 is a curved surface, the light has a tendency to converge after being reflected by the elastic support 12, which is beneficial for obtaining a better image quality. And once the reflecting surface provided by the elastic supporting member 12 is flat, referring to fig. 9B, a light ray a enters the reflecting surface 112 reaching the light processing element 11, and the light ray a can directly undergo a reflection at the reflecting surface 112 and then leave the light processing element 11 as a light ray a'. Part of the light ray a passes through the reflection surface 112 at the reflection surface 112 and then enters the light processing element 11 again at the non-support region 1212 of the support surface 121 of the elastic support 12, and finally leaves the light processing element 11, the light ray a becomes a light ray a ' ", so that the light ray a '" is diverged with respect to the light ray a '.

It is worth mentioning that the inner frame 124 of the recess can also form a larger space to accommodate a larger air medium.

In particular, the flexible support member 12 has a support surface 121, the support surface 121 is formed on the inner frame 124, wherein the support surface 121 faces the reflection surface 112 of the light processing element 11, and light can be reflected by the support surface 121 of the flexible support member 12 after passing through the reflection surface 112 of the light processing element 11. The supporting surface 121 has a supporting region 1211 and a non-supporting region 1212, wherein the supporting region 1211 is directly supported by the reflecting surface 112 of the light processing element 11, and the non-supporting region 1212 faces the reflecting surface 112 of the light processing element 11 but does not directly support the reflecting surface 112 of the light processing element 11. In other words, the supporting region 1211 is located at a higher height than the non-supporting region 1212 so that the light processing element 11 is supported by the supporting region 1211 of the supporting surface 121 of the elastic supporting member 12. Optionally, the support area 1211 is located at the periphery of the support surface 121 so that a larger retention space 100 is formed near the through hole 1240, thereby retaining more air medium.

It is worth mentioning that the non-support region 1212 is configured to have a concave curved surface. A light ray a enters the reflection surface 112 reaching the light processing element 11, and the light ray a can directly undergo a reflection at the reflection surface 112 and then leave the light processing element 11 as a light ray a'. Part of the optical beam a passes through the reflection surface 112 at the reflection surface 112 and then enters the light processing element 11 again at the non-support region 1212 of the support surface 121 of the elastic support 12, and then exits the light processing element 11 as a light beam a ″. When the non-support region 1212 is a flat surface, the light ray a finally leaves the light processing element 11 to become an optical ray a' ". In other words, the recessed unsupported region 1212 allows the light ray a' and the light ray a ″ obtained after the light processing element processes to have a tendency to converge, so as to facilitate the later imaging.

It will be appreciated that the direction of the depression of the portion of the unsupported region 1212 of the depression is in a direction away from the reflective surface 112 of the light management component 11.

More specifically, the inner frame 124 has a reflective surface, wherein the reflective surface and the reflective surface 112 of the light management component 11 are oppositely disposed, the reflective surface being formed at the non-support region 1212 of the support surface 121. The reflective surface is used to reflect the light from the reflective surface 112 of the light management component 11 back to the reflective surface 112 of the light management component 11. The reflecting surface is arranged to be a concave curved surface, and the periphery of the reflecting surface is higher than the middle position of the reflecting surface. It will be appreciated that the intermediate position of the reflective surface may be undulating, for example wavy, but still below the position of the periphery of the reflective surface.

Referring to fig. 10, there is shown another variant of the resilient support 12 according to the above embodiment, with continued reference to fig. 1A, 1B to 4.

The light turning mechanism 10 includes the light processing element 11, the elastic support 12, the turning base 13 and the housing 14, wherein the light processing element 11, the elastic support 12 and the turning base 13 are accommodated in the housing 14, wherein the turning base 13 is rotatably connected to the housing 14 in a drivable manner, wherein the light processing element 11 is connected to the turning base 13 to be carried by the turning base 13 to rotate together when the turning base 13 is driven, and the elastic support 12 is located between the light processing element 11 and the turning base 13.

The elastic supporting member 12 has a supporting surface 121, the supporting surface 121 faces the reflecting surface 112 of the light processing element 11, and when the light processing element 11 is supported on the elastic supporting member 12, a part of the reflecting surface 112 is directly supported on the supporting surface 121.

In the process that the turning base 13 drives the optical processing element 11 to rotate, the elastic support 12 has certain elasticity, on one hand, the elastic support 12 and the turning base 13 play a role in buffering, on the other hand, the elastic support 12 twists with the rotation of the turning base 13 but has a tendency of recovering deformation, so that the elastic support 12 can help the optical processing element 11 to rotate at an original position.

Specifically, the elastic support 12 includes an outer frame 122, at least a first limit connector 123 and an inner frame 124, wherein the outer frame 122 is directly connected to the housing 14, and the inner frame 124 is connected to the outer frame 122 through the first limit connector 123 and is supported on the housing 14, that is, while the steering base 13 rotates the elastic support 12, the inner frame 124 of the elastic support 12 rotates together with the steering base 13, and the outer frame 122 directly connected to the housing 14 hardly rotates. The first limit connector 123 is twisted or deformed with the rotation of the inner frame 124, the force for driving the turning base 13 to rotate needs to overcome not only the gravity of the turning base 13 itself but also the force from the elastic support 12, and during the process of returning the light processing element 11 and the turning base 13, the elastic support 12 can provide a force to help the light processing element 11 and the turning base 13 to return quickly. The support surface 121 is formed at the inner frame 124.

The inner frame 124 has a through hole 1240, the through hole 1240 is located at a middle position of the inner frame 124, wherein the area of the through hole 1240 is set to be larger than the illumination region 1121 of the reflection surface 112 of the light processing element 11, so that the light transmitted through the reflection surface 112 of the light processing element 11 cannot be reflected by the inner frame 124 to reduce the influence of stray light on the imaging quality of the image pickup unit 1. That is, the projected area of the illumination region 1121 of the reflection surface 112 of the light processing element 11 at the position of the through hole 1240 is included in the area of the through hole 1240.

Further, at least a portion of the support surface 121 near the location of the through hole 1240 is blackened or roughened to reduce the entry of stray light nearby into the reflective surface 112 of the light management component 11 to affect the final imaging effect.

Optionally, at least a portion of the inclined surface 131 of the turning base 13 corresponding to the illumination region 1121 is blackened or has a larger roughness, so as to prevent stray light formed by partial reflection of the inclined surface 131 of the turning base 13 from reaching the reflection surface 112 of the light processing element 11, which may affect subsequent imaging effects.

In another example of the present invention, the through hole 1240 is not formed in the middle of the inner frame 124, and the influence on the post-imaging effect may be reduced by blacking the middle of the inner frame 124 or increasing the roughness. In this example, blacking refers to coating or applying a material with high absorbance of light at a specific wavelength. According to another aspect of the present invention, a method of manufacturing a light redirecting mechanism 10 is provided that includes the steps of:

holding a light processing element 11 on a turning base 13 in a manner that the light processing element can be turned along with the turning base 13 and the relative position of the light processing element and the turning base is fixed; and

is disposed between a flexible support 12 and the light processing element 11, and forms a retention space between the flexible support 12 and the light processing element 11.

According to an embodiment of the present invention, the method further comprises a step of:

a supporting region 1211 and a non-supporting region 1212 are formed on a supporting surface 121 of the elastic supporting member 12, and the non-supporting region 1212 is lower than the supporting region 1211.

According to an embodiment of the present invention, the support region 1211 is formed on the periphery of the elastic support 12.

According to an embodiment of the present invention, the support area 1211 is a continuous plane.

According to an embodiment of the present invention, the support area 1211 comprises a plurality of discontinuous planes.

According to an embodiment of the present invention, further comprising the steps of:

an outer frame 122 fixedly connected to an outer housing 14, a first limit connector 123, and an inner frame 124 rotatably connected to the first limit connector 123 with respect to the outer frame 122 to form the elastic support 12 are formed.

According to an embodiment of the present invention, the elastic support 12 is formed by stamping.

According to an embodiment of the present invention, the method further comprises a step of:

a housing 14 is formed outside the elastic support 12, the rotating base 13 and the light processing element 11; and

a driving element 15 is formed in each of the housing 14 and the rotating base 13 so that the rotating base 13 is driven to rotate relative to the housing 14.

According to another aspect of the present invention, there is provided a method for supplementing light for a light turning mechanism 10, comprising the steps of:

a supporting surface 121 at least partially corresponding to an illumination region 1121 of a light processing element 11 is formed on an elastic supporting member 12 so that light from the illumination region 1121 of the light processing element 11 is reflected back to the light processing element 11 through the supporting surface 121.

According to an embodiment of the present invention, in the above method, the reflectivity of at least a portion of the supporting surface 121 corresponding to the illumination region 1121 but not a total reflection region 1122 is set to be smaller than the reflectivity of at least a portion of the supporting surface 121 corresponding to the total reflection region 1122.

According to an embodiment of the present invention, in the above method, a supporting region 1211 and a non-supporting region 1212 are respectively formed on the supporting surface 121, wherein the position of the non-supporting region 1212 is lower than the position of the supporting region 1211.

According to an embodiment of the present invention, the non-support region 1212 is a concave curved surface.

According to another aspect of the present invention, a method of operating a light redirecting mechanism 10 is provided, comprising the steps of:

by means of a retaining space 100 formed on the side of a reflecting surface 112 of a light-processing element 11 between a flexible support 12 and the light-processing element 11, a total reflection of at least part of the light takes place at the reflecting surface 112.

According to an embodiment of the present invention, further comprising the steps of:

the light passing through the reflecting surface 112 of the light processing element 11 is reflected on a supporting surface 121 of the elastic supporting member 12; and

part of the reflected light rays return to the light management component 11.

According to an embodiment of the present invention, in the above method, an illumination region 1121 of the light from the reflection surface 112 does not belong to a total reflection region 1122.

According to an embodiment of the present invention, the supporting surface 121 is a concave curved surface.

According to an embodiment of the present invention, further comprising the steps of:

the light passing through the reflective surface 112 of the light processing element 11 reaches a turning base 13 after passing through a through hole 1240 of the elastic support 12.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.