阅读说明：本技术 一种可实现偏光的透镜组件及灯具 (Lens assembly capable of realizing polarized light and lamp ) 是由 卢雪 宋凯 杨志兵 于 2019-11-04 设计创作，主要内容包括：本申请公开了一种可实现偏光的透镜组件及灯具,所述透镜组件包括第一透镜、第二透镜以及齿轮联动机构,其中,所述第一透镜具有第一微结构面,所述第二透镜具有第二微结构面,所述第一微结构面和所述第二微结构面相向设置；所述齿轮联动机构与所述第一透镜啮合设置,所述齿轮联动机构还与所述第二透镜啮合设置,驱动所述齿轮联动机构,所述第一透镜和所述第二透镜逆向同角度转动。一种灯具,包括上述的透镜组件。本申请通过齿轮联动机构,带动具有偏光功能的第一透镜和第二透镜转动,实现第一透镜和第二透镜的逆向同角度转动,从而实现筒射灯、导轨灯的光斑可以沿着一条直线从中心往边缘偏移。(The application discloses a lens assembly capable of realizing polarized light and a lamp, wherein the lens assembly comprises a first lens, a second lens and a gear linkage mechanism, wherein the first lens is provided with a first microstructure surface, the second lens is provided with a second microstructure surface, and the first microstructure surface and the second microstructure surface are oppositely arranged; the gear linkage mechanism is meshed with the first lens and also meshed with the second lens to drive the gear linkage mechanism, and the first lens and the second lens rotate reversely at the same angle. A lamp comprises the lens assembly. This application passes through gear link gear, drives first lens and the second lens rotation that has polarisation function, realizes that the reverse of first lens and second lens rotates with the angle to the facula that realizes section of thick bamboo shot-light, guide rail lamp can be along a straight line from the center toward the marginal skew.)

1. A lens assembly capable of realizing polarization is characterized in that,

comprises a first lens, a second lens and a gear linkage mechanism,

the first lens is provided with a first microstructure surface, the second lens is provided with a second microstructure surface, and the first microstructure surface and the second microstructure surface are oppositely arranged;

the gear linkage mechanism is meshed with the first lens and also meshed with the second lens to drive the gear linkage mechanism, and the first lens and the second lens rotate reversely at the same angle.

2. The polarization enabled lens assembly of claim 1, wherein the gear linkage comprises: a first gear, a second gear, and a third gear,

the first gear is meshed with the periphery of the first lens, the second gear is meshed with the periphery of the second lens, and the third gear is coaxial with the second gear and meshed with the first gear;

the third gear is driven to rotate clockwise/anticlockwise, the first gear meshed with the third gear rotates anticlockwise/clockwise, and the first lens meshed with the first gear rotates clockwise/anticlockwise; the second gear coaxially disposed with the third gear also rotates clockwise/counterclockwise, and then the second lens engaged with the second gear rotates counterclockwise/clockwise.

3. The lens assembly capable of realizing polarization according to claim 2, wherein a first rotary button is disposed on the first gear.

4. The lens assembly capable of realizing polarization according to claim 2 or 3, wherein the third gear and the second gear are of an integrated structure.

5. The lens assembly capable of realizing polarization according to claim 2 or 3, wherein a second rotary button is arranged on the second gear and/or the third gear.

6. The polarization enabled lens assembly of claim 1, wherein the tilt angle of the first microstructures in the first microstructure plane is the same as the tilt angle of the second microstructures in the second microstructure plane, both being θ.

7. A polarization-enabled lens assembly according to claim 1 or 6, wherein the first microstructure face and the second microstructure face are arranged in facing contact.

8. The polarization enabled lens assembly of claim 1, wherein the refractive indices of the first lens and the second lens are the same, and are both n.

9. A polarization-enabled lens assembly according to claim 1, 6 or 8, wherein said first lens further has a first plane and said second lens further has a second plane.

10. A polarization-enabled lens assembly according to claim 1, 2, 3, 6 or 8, wherein the first lens and the second lens are both thin plate plates with a gear shape.

11. The polarization-enabled lens assembly of claim 1, wherein the first lens and the second lens are made of PMMA, PC or glass.

12. A luminaire comprising a polarization enabled lens assembly according to any one of claims 1 to 11.

Technical Field

The application belongs to the technical field of LED illumination, especially relates to a lens subassembly and lamps and lanterns that can realize polarisation.

Background

In the practical application process of some tube spot lamps and guide rail lamps, the condition that the angle needs to be adjusted to carry out 'side-weight' illumination often appears, and such tube spot lamps and guide rail lamps are applied flexibly, have high installation freedom and can realize more illumination ranges. At present, the angle-adjustable function of the tube spotlight and the guide rail lamp can be realized by a mechanical angle-adjusting mode in the market. The application provides a mode through optical lens grading realizes the function of this kind of adjustable angle of section of thick bamboo shot-light, guide rail lamp.

Disclosure of Invention

In view of the above-mentioned shortcomings or drawbacks of the prior art, an object of the present invention is to provide a lens assembly and a lamp capable of realizing polarization.

In order to solve the technical problem, the application is realized by the following technical scheme:

a lens assembly capable of realizing polarization comprises a first lens, a second lens and a gear linkage mechanism,

the first lens is provided with a first microstructure surface, the second lens is provided with a second microstructure surface, and the first microstructure surface and the second microstructure surface are oppositely arranged;

the gear linkage mechanism is meshed with the first lens and also meshed with the second lens to drive the gear linkage mechanism, and the first lens and the second lens rotate reversely at the same angle.

Further, the lens assembly above, wherein the gear linkage mechanism comprises: a first gear, a second gear, and a third gear,

the first gear is meshed with the periphery of the first lens, the second gear is meshed with the periphery of the second lens, and the third gear is coaxial with the second gear and meshed with the first gear;

the third gear is driven to rotate clockwise/anticlockwise, the first gear meshed with the third gear rotates anticlockwise/clockwise, and the first lens meshed with the first gear rotates clockwise/anticlockwise; the second gear coaxially disposed with the third gear also rotates clockwise/counterclockwise, and then the second lens engaged with the second gear rotates counterclockwise/clockwise.

Further, in the lens assembly, a first rotary button is disposed on the first gear.

Further, in the lens assembly, the third gear and the second gear are an integrated structure.

Further, in the lens assembly, a second rotary button is disposed on the second gear and/or the third gear.

Further, in the lens assembly, a transmission ratio of the third gear to the second gear is 1: 1, wherein the first and third gear ratios are preferably 1: 1.

further, in the lens assembly, an inclination angle of the first microstructure in the first microstructure surface is the same as an inclination angle of the second microstructure in the second microstructure surface, and both the inclination angles are θ.

Further, in the lens assembly, the first microstructure surface and the second microstructure surface are arranged in contact with each other.

Further, in the lens assembly, the refractive index of the first lens is the same as that of the second lens, and both the refractive indices are n.

Further, in the lens assembly, the first lens further has a first plane, and the second lens further has a second plane.

Further, in the lens assembly, the first lens and the second lens are both thin plate plates with a gear shape.

Further, in the lens assembly, the first lens and the second lens are made of PMMA, PC, glass or other transparent materials.

A lamp comprises the lens assembly capable of realizing polarization.

Compared with the prior art, the method has the following technical effects:

this application passes through gear link gear, drives first lens and the second lens rotation that has polarisation function, realizes that the reverse of first lens and second lens is with the angle rotation to the facula that realizes section of thick bamboo shot-light, guide rail lamp can be along a straight line from the center toward marginal offset, realizes angle regulation's function, has overcome the current technical defect that only passes through the mechanical system angle modulation.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1: the application can realize the perspective view of the lens component of the polarized light;

FIG. 2: the first top view of the lens component capable of realizing polarization;

FIG. 3: a cross-sectional view taken along the direction a-a as shown in fig. 2;

FIG. 4: a partially enlarged view (initial state) shown in fig. 3;

FIG. 5: the second top view of the lens component capable of realizing polarization is shown;

FIG. 6: a cross-sectional view taken along the direction B-B as shown in fig. 5;

FIG. 7: a partially enlarged view (polarization maximum state) as shown in fig. 6;

FIG. 8: the method can realize the light ray trend chart of the initial state of the polarized lens assembly;

FIG. 9: the method can realize the light trend chart of the polarized maximum state of the polarized lens assembly;

FIG. 10: this application can realize the removal sketch map of the lens subassembly angle regulation in-process facula of polarisation.

Detailed Description

The conception, specific structure and technical effects of the present application will be further described in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present application.

As shown in fig. 1 to 7, a lens assembly capable of realizing polarization includes a first lens 10, a second lens 20, and a gear linkage 30, wherein the first lens 10 has a first microstructure surface 11, the second lens 20 has a second microstructure surface 21, and the first microstructure surface 11 and the second microstructure surface 21 are disposed opposite to each other; the gear linkage mechanism 30 is engaged with the first lens 10, the gear linkage mechanism 30 is also engaged with the second lens 20 to drive the gear linkage mechanism 30, and the first lens 10 and the second lens 20 reversely rotate at the same angle. The first lens 10 and the second lens 20 with the polarization function are driven to rotate by the gear linkage mechanism 30, the reverse rotation at the same angle of the first lens 10 and the second lens 20 is realized, and therefore the light spots of the barrel spotlight and the guide rail lamp are deviated.

The first lens 10 is a thin plate with a gear-shaped edge, one side of the thin plate is a first plane 12, the other side of the thin plate is a first microstructure plane 11 with a microstructure, the first lens 10 can be made of PMMA, PC, glass or other transparent materials, and the refractive index of the first lens is n. The second lens 20 is also a sheet plate with a gear-shaped edge, one side of the sheet plate is a second plane 22, and the other side of the sheet plate is a second microstructure plane 21 with a microstructure, the second lens 20 may be made of PMMA, PC, glass or other transparent materials, and has a refractive index n, that is, the refractive indices of the first lens 10 and the second lens 20 are the same.

In the present embodiment, the first lens 10 and the second lens 20 are two closely attached sheet plates with gear shapes and different sizes.

Preferably, the first microstructure surface 11 and the second microstructure surface 21 are arranged in opposing contact.

As shown in fig. 3 and fig. 4, which are schematic views of the initial microstructure of this embodiment, the corresponding light spot is in a central state, and it can be seen from the partially enlarged view that the tilt angles of the microstructures of the second lens 20 and the first lens 10 are the same.

In the present embodiment, the inclination angle of the first microstructure in the first microstructure surface 11 is the same as the inclination angle of the second microstructure in the second microstructure surface 21, which is θ, as shown in fig. 8 and 9.

Fig. 6 and 7 are schematic diagrams of the present embodiment when the polarization is maximum. At this time, the second lens 20 and the first lens 10 are rotated by 90 degrees in reverse synchronization, and the corresponding light spot is polarized to the maximum state.

In the present embodiment, as shown in fig. 1, 2, 3, and 5, the gear linkage mechanism 30 includes: a first gear 31, a second gear 32, and a third gear 33, wherein the first gear 31 is disposed to mesh with an outer periphery of the first lens 10, the second gear 32 is disposed to mesh with an outer periphery of the second lens 20, and the third gear 33 is disposed coaxially with the second gear 32 and to mesh with the first gear 31. The gear linkage mechanism 30 is driven to rotate the first lens 10 and the second lens 20 in opposite directions and at the same angle, specifically:

when the third gear 33 is driven to rotate clockwise, the first gear 31 engaged with the third gear 33 rotates counterclockwise, and the first lens 10 engaged with the first gear 31 rotates clockwise; when the second gear 32 coaxially disposed with the third gear 33 also rotates clockwise, the second lens 20 engaged with the second gear 32 rotates counterclockwise.

When the third gear 33 is driven to rotate counterclockwise, the first gear 31 disposed in mesh with the third gear 33 rotates clockwise, and then the first lens 10 disposed in mesh with the first gear 31 rotates counterclockwise; when the second gear 32 coaxially disposed with the third gear 33 also rotates counterclockwise, the second lens 20 engaged with the second gear 32 rotates clockwise.

As shown in fig. 1, 2, 3 and 5, in the present embodiment, the third gear 33 and the second gear 32 are integrated, that is, the third gear 33 and the second gear 32 can rotate synchronously.

Further, a second rotary button 331 is disposed on the second gear 32 and/or the third gear 33, and the second rotary button 331 is disposed to apply a force to the second gear 32 or the third gear 33, so that the second gear 32 or the third gear 33 can rotate clockwise or counterclockwise.

Of course, the first gear 31 may be provided with a first rotary knob 311, and the first gear 31 may be rotated clockwise or counterclockwise by applying a force to the first rotary knob 311.

Of course, the driving method may be manual or electric, and the electric driving method may adopt a micro motor, specifically, a driving shaft of the micro motor is installed on a central shaft of the second gear 32 or the third gear 33, or the driving shaft of the micro motor is installed on the second rotary button 331.

In this embodiment, there is a size difference between the first lens 10 and the second lens 20, and in order to ensure that the first lens 10 and the second lens 20 realize reverse rotation at the same angle, according to the size difference between the second gear 32 and the second lens 20, a transmission ratio m between the second gear 32 and the second lens 20 can be reasonably calculated: 1, and since the third gear 33 and the second gear 32 are of an integrated structure, the transmission ratio between the third gear 33 and the second gear 32 is m: m; to ensure the same angular rotation of the first lens 10 and the second lens 20, according to the size difference between the first gear 31 and the first lens 10, the transmission ratio between the first gear 31 and the first lens 10 should be n: 1, then the transmission ratio between the third gear 33 and the first gear 31 should be m: n is the same as the formula (I).

Preferably, when the third gear 33 and the first gear 31 are the same in size, m is equal to n, that is, the gear ratio of the first gear 31 to the third gear 33 is 1: 1; of course, the gear ratio of the first gear 31 and the third gear 33 is not limited to the above 1: the above mentioned transmission ratio is not intended to limit the scope of protection of the present application.

The application also provides a lamp, which comprises the lens component capable of realizing polarization.

As shown in fig. 8, the second microstructure in the second lens 20 and the first microstructure in the first lens 10 have the same tilt angle θ, and the refractive indices thereof are both n. When a collimated parallel light beam enters from the plane of the second lens 20 and then hits the second microstructure surface of the second lens 20, the light beam can be calculated to be emitted at an angle of 90 ° - θ as an incident angle and an emission angle α. According to the Fresnel law, the method comprises the following steps:

n·sin(90°-θ)＝sinα

since the second microstructure in the second lens 20 and the first microstructure of the first lens 10 have the same inclination angle, the outgoing light with the outgoing angle α has an incident angle α with respect to the first lens 10, and the refractive index of the first lens 10 is also n, as can be known from fresnel's law:

sinα＝n·sin(90°-θ)

through the calculation, the light rays can be obtained to be not deflected after passing through the lens assembly, namely the emergent light rays are also collimated and parallel, at the moment, the corresponding light spots are in a central state, and the corresponding barrel spotlight and the guide rail lamp are in an unadjusted angle state.

As shown in fig. 9, with the clockwise rotation of the second rotary button 331, the third gear 33 rotates clockwise; the third gear 33 rotates clockwise to drive the first gear 31 to rotate counterclockwise; the counterclockwise rotation of the first gear 31 drives the clockwise rotation of the first lens 10; because of the integrated structure of the third gear 33 and the second gear 32, the second gear 32 will rotate along with the clockwise rotation of the third gear 33, and the clockwise rotation of the second gear 32 drives the counterclockwise rotation of the second lens 20. When the second lens 20 and the first lens 10 are rotated in opposite directions by 90 degrees, the relative positions of the lenses are as shown in fig. 9. When a collimated parallel light beam enters the second lens 20, the incident angle is 90 ° - θ, and after the incident light beam is refracted by the second lens 20 and the first lens 10, the angle of the obtained emergent light beam relative to the normal of the first microstructure surface in the first lens 10 is calculated according to the fresnel law as follows:

the collimating parallel light beams are deflected after passing through the lens component, and at the moment, the emergent light beams are deflected to the maximum corresponding to the light spots and are in the maximum angle adjustable state corresponding to the barrel spotlight and the guide rail lamp.

Fig. 10 is a schematic diagram of the spot movement during the angle adjustment state of the lens assembly according to the present invention. As can be seen, the lens assembly is at the center position M corresponding to the light spot in the state of fig. 8, and after the lens assembly rotates along with the linkage mechanism, the light spot is horizontally shifted along the center line until the polarization angle reaches the maximum, which corresponds to the state of the polarization assembly shown in fig. 9, and then the light spot moves to the position N shown in the figure.

This application passes through gear link gear, drives first lens and the second lens rotation that has polarisation function, realizes that the reverse of first lens and second lens is with the angle rotation to the facula that realizes section of thick bamboo shot-light, guide rail lamp can be along a straight line from the center toward marginal offset, realizes angle regulation's function, has overcome the current technical defect that only passes through the mechanical system angle modulation. Therefore, the method has a wide application prospect.

It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe certain components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. For example, a first certain component may also be referred to as a second certain component, and similarly, a second certain component may also be referred to as a first certain component without departing from the scope of embodiments herein.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The above embodiments are merely to illustrate the technical solutions of the present application and are not limitative, and the present application is described in detail with reference to preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.