阅读说明：本技术 光学装置、照相机及便携式电子设备 (Optical device, camera and portable electronic apparatus ) 是由 色摩和雄 于 2019-08-20 设计创作，主要内容包括：光学装置、照相机及便携式电子设备。在具备安装于透镜上的空间内的叶片的叶片驱动装置中,通过共用透镜驱动装置和供电部,能够实现搭载的装置整体的紧凑化和组装简易化。叶片驱动装置具备：一个或多个叶片；基座部件,其支承叶片；杆部件,其转动自如地轴支承于基座部件,并具备与叶片连结的连结部；转动部件,其转动自如地轴支承于基座部件,并具备与杆部件连结的连结部；驱动用磁铁,其具有固定于转动部件的不同极性的磁极面；以及线圈,其卷绕在磁极面上,在基座部件固定有吸引用磁铁或磁性体,叶片驱动装置具备从卷绕的线圈向外部供电的供电用的端子,以经由配置在透镜驱动装置上的弹簧片,从设置于连接线固定用基座的与外部连接的连接端子进行供电。(Optical device, camera and portable electronic equipment. In the blade driving device having the blade mounted in the space above the lens, the lens driving device and the power supply unit are shared, so that the whole device can be made compact and the assembly can be simplified. The blade drive device is provided with: one or more blades; a base member that supports a blade; a rod member pivotally supported by the base member to be rotatable and including a connecting portion connected to the blade; a rotating member that is rotatably supported by the base member and includes a connecting portion connected to the rod member; a drive magnet having magnetic pole surfaces of different polarities fixed to the rotary member; and a coil wound around the magnetic pole surface, wherein the attraction magnet or the magnetic body is fixed to the base member, and the blade driving device includes a terminal for supplying power from the wound coil to the outside, and supplies power from a connection terminal provided in the base for fixing the connection wire and connected to the outside via a spring piece disposed in the lens driving device.)

1. An optical device comprising a blade drive device and a lens drive device having a drive member movable in an optical axis direction,

the blade drive device is provided with:

one or more blades;

a base member supporting the blade;

a lever member pivotally supported by the base member to be rotatable, the lever member including a connection portion connected to the blade;

a rotating member that is pivotally supported by the base member so as to be rotatable, and that includes a connecting portion that is connected to the rod member;

a drive magnet having magnetic pole surfaces of different polarities fixed to the rotary member; and

a coil wound on the magnetic pole surface,

a magnet for attraction or a magnetic body is fixed to the base member,

the coil is provided with a terminal for supplying power to the outside,

the lens driving device includes:

a lens module including a lens barrel capable of housing a lens;

a support frame in which the lens module is disposed; and

a spring plate connecting the lens module and the support frame,

the blade driving device is arranged on a lens module of the lens driving device,

the power supply terminal from the blade drive device supplies power via the spring plate of the lens drive device.

2. The optical device according to claim 1,

the driving unit of the blade driving device is disposed at a position where the center of gravity of the lens driving device is corrected.

3. The optical device according to claim 1 or 2,

the terminal for supplying power to the blade driving device is a spring member.

4. The optical device according to claim 1 or 2,

the lever member having a coupling portion coupled to the vane and the pivot member having a coupling portion coupled to the lever member are in the same plane, and the lever member has a sliding portion shifted in a height direction so as not to interfere with a pivot shaft of the lever member.

5. The optical device according to claim 1 or 2,

the lever member having the connection portion connected to the blade and the pivot member having the connection portion connected to the lever member are each provided with a plate member for separating the blade member of the blade drive device from the base member to regulate the height direction.

6. A camera comprising the optical device according to any one of claims 1 to 5.

7. A portable electronic device comprising the camera according to claim 6.

Technical Field

The invention relates to an optical device, a camera and a portable electronic apparatus.

Background

With the rapid development of the photographing technology, the blade driving device and the lens driving device are widely used in a large number of photographing devices. The application of the lens driving apparatus to various portable electronic devices such as mobile phones, tablet computers, etc. is particularly accepted by consumers.

The blade driving device drives one or more blades to change the state of an aperture, and is used as a shutter, a diaphragm, a shutter serving as a diaphragm, a filter, and the like in various optical units such as a camera. The lens driving device can focus by driving the lens holder to move the lens holder in the optical axis direction of the lens, and can correct image shake caused by hand shake by moving the lens holder perpendicular to the optical axis direction of the lens. However, since the lens driving device requires the lens holder to move in the optical axis direction for focusing and to move perpendicular to the optical axis direction for correcting image shake, and the diaphragm or the shutter is required to appropriately block light at a predetermined position of the lens, the diaphragm or the shutter needs to be moved together with the lens. Further, since the driving unit of the blade driving device changes the center of gravity of the lens driving device, there is a possibility that appropriate lens driving cannot be performed.

Therefore, it is necessary to provide a new blade driving device and a lens driving device capable of solving the above problems.

Disclosure of Invention

Problems to be solved by the invention

The invention provides a novel blade driving device and a lens driving device, which aim to solve the following problems: a shake of the lens driving device due to a shake of the electronic apparatus generated using the blade driving device that appropriately adjusts the amount of light when the user performs photographing; when adjusting the focus, the wiring for supplying power to the blade driving device interferes with the operation of the lens driving device; and a change in the center of gravity caused by a driving section of the blade driving device when the lens driving is performed.

Means for solving the problems

The object of the present invention is achieved in the following manner. In the following description, for the convenience of understanding the present invention, reference numerals in the drawings are indicated in parentheses, but the constituent elements of the present invention are not limited to these indicated elements, and a person skilled in the art should be interpreted broadly as a technically understandable range.

An optical device comprises a blade drive device and a lens drive device having a drive member movable in an optical axis direction,

the blade drive device is provided with:

one or more blades;

a base member supporting the blade;

a lever member pivotally supported by the base member to be rotatable, the lever member including a connection portion connected to the blade;

a rotating member that is pivotally supported by the base member so as to be rotatable, and that includes a connecting portion that is connected to the rod member;

a drive magnet having magnetic pole surfaces of different polarities fixed to the rotary member; and

a coil wound on the magnetic pole surface,

a magnet for attraction or a magnetic body is fixed to the base member,

the coil is provided with a terminal for supplying power to the outside,

the lens driving device includes:

a lens module including a lens barrel capable of housing a lens;

a support frame in which the lens module is disposed; and

a spring plate connecting the lens module and the support frame,

the blade driving device is arranged on a lens module of the lens driving device,

the power supply terminal from the blade drive device supplies power via the spring plate of the lens drive device.

Preferably, the driving unit of the blade driving device is disposed at a position for correcting the center of gravity of the lens driving device.

Preferably, the terminal for supplying power to the blade drive device is a spring member.

Preferably, the lever member having the connecting portion connected to the vane and the pivot member having the connecting portion connected to the lever member are in the same plane, and the lever member has the sliding portion shifted in the height direction so as not to interfere with the pivot shaft of the lever member.

Preferably, the lever member having the connecting portion connected to the blade and the pivot member having the connecting portion connected to the lever member are each provided with a plate member for separating the blade member of the blade drive device from the base member to regulate the height direction.

The present invention also includes an imaging device such as a camera including the blade driving device.

The present invention also includes a portable electronic device such as a smartphone including the blade drive device.

Effects of the invention

As an advantage of the present invention, in the blade driving device and the lens driving device according to the present invention, the wiring for supplying power to the blade driving device does not hinder the movement of the lens module with respect to the movement, and the driving unit of the blade driving device is placed at a position where the center of gravity of the lens module at the time of movement is corrected, whereby the object of more efficient anti-shake and appropriate light amount adjustment while adjusting the focus can be achieved, and the quality of the captured image can be improved.

Drawings

Fig. 1 is an exploded perspective view of a blade drive device and a lens drive device according to the present invention.

Fig. 2 is a sectional view of the blade drive device of the present invention.

Fig. 3 is a sectional view of the blade driving device and the lens driving device of the present invention.

Fig. 4 is a front view of the blade drive device of the present invention.

Fig. 5 shows a lever member having a connecting portion connected to a vane and a pivot member having a connecting portion connected to the lever member according to the present invention.

Fig. 6 is a front view of the vane drive device of the present invention except for a plate member having a bore, constituting a vane chamber, and covering the vane.

Fig. 7 is a front view of the blade driving device of the present invention except for a plate member having a bore, constituting a blade chamber, and covering the blade, and is a view in which the blade member is closed.

Fig. 8 is a right side view of the blade drive device of the present invention.

Fig. 9 is a rear view of the blade drive device of the present invention.

Fig. 10 is a perspective view of the blade drive device and the lens drive device of the present invention.

Fig. 11 shows a portable electronic device (portable information terminal) including the blade driving device and the lens driving device of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 to 7 are views showing a blade driving device 100 and a lens driving device 200 according to the present invention.

The blade drive device 100 includes: a base member 10 that supports a blade; a blade 21; a plate member 22 having a bore and constituting a blade chamber; a plate member 23 having a bore, constituting a blade chamber, and covering the blade; a rod member 30 having a connection portion to which the blade is connected; a rotating member 40 having a connecting portion connected to the lever member; a driving magnet 50 having a magnetic pole surface; a wound coil 60; a terminal 70 for power supply; and a magnet or magnetic body 80 for attraction.

The vane chamber 20 constituting the vane includes: the blades 21; a plate member 22 having a bore and constituting a vane chamber; and a plate member 23 having a bore, constituting the vane chamber, and covering the vane.

A drive unit of a blade drive device is provided with: a lever member 30 having a connection portion connected to the blade; a rotating member 40 to which a driving magnet 50 having a magnetic pole surface is attached and which includes a connecting portion connected to the lever member; a wound coil 60; a terminal 70 for power supply; and a magnet or magnetic body 80 for attraction.

The rotating member 40 having a coupling portion coupled to a lever member having a sliding portion 42 displaced in the height direction is rotated about the shaft 11 as a fulcrum by an electromagnetic action of a wound coil 60 of the vane driving device and a driving magnet 50 having a magnetic pole surface, and the coupled vane 21 can be opened and closed by rotating the lever member 30 having a coupling portion coupled to a vane, which is coupled to the coupling portion 41 coupled to the lever member, about the shaft 12 as a fulcrum, wherein the shaft 11 supports the rotating member having a coupling portion coupled to the lever member, and the shaft 12 supports the lever member having a coupling portion coupled to the vane.

The lens driving device 200 includes a housing 110, a lens module 130, a support frame 120, a spring piece (springbeam) 150, a support member 140, a magnetic steel 160, a first driving coil 170, and a second driving coil 171.

The housing 110 has a housing space 114, and the housing 110 includes: a fixing base 113; a cover 112 for forming a housing space 114 in cooperation with the fixing base 113; and a connection wire fixing base 111 for fixing the connection wire 180.

The fixing base 113 includes a cylindrical holding member 142 and a second driving coil 171 fixed to the fixing base 113.

The support frame 120 is housed inside the housing space 114 of the housing 110, the lens module 130 is housed inside the support frame 120, and the lens module 130 includes a lens (not shown).

The support member 140 supports the support frame 120 and the fixing base 113 so that the support frame 120 can move relative to the fixing base 113 in a direction perpendicular to the optical axis of the lens.

The bearing member 140 may be a ball (ball). At least 3 balls 140 are provided, and on the other hand, a ball receiving surface 141 for placing the balls 140 is provided on the upper portion of the support frame 120, and the support frame 120 is movable relative to the fixing base 113 in a direction orthogonal to the optical axis of the lens by rolling of the balls 140.

The spring plate 150 connects the lens module 130 and the support frame 120.

The spring pieces 150 include upper spring pieces 151 and lower spring pieces 152, and the upper spring pieces 151 and the lower spring pieces 152 are respectively provided on the upper surface portion and the lower surface portion of the lens module 130 along the optical axis direction of the lens.

The magnetic steel 160 is mounted and fixed to the support frame 120.

The lens driving device 200 is provided with a yoke 190, and the yoke 190 is attached to and fixed to the fixing base 113 and has both a function of pulling the magnetic steel 160 in the optical axis direction and a function of pulling the lens module toward the center of the optical axis when the lens module is moved in the direction perpendicular to the optical axis direction.

The first driving coil 170 is attached and fixed to the lens module 130, and is disposed opposite to the magnetic steel 160.

The lens module 130 is provided with a projection 131 extending in a direction away from the center of the lens module. The first driving coil 170 is held on the projection 131.

The first driving coil 170 is disposed opposite to the magnetic steel 160. Due to the electromagnetic action between the first driving coil 170 and the magnetic steel 160, the lens module can move in the optical axis direction of the lens, thereby enabling focusing.

The second driving coils 171 are provided on the fixing base 113, and are provided so as to correspond to the upper portions of the magnet steels 160.

The second driving coil 171 may be a coil winding attached and fixed to the fixing base 113, or may be a conductive pattern directly formed on the fixing base 113. Due to the electromagnetic action between the second driving coil 171 and the magnetic steel 160, the support frame 120 can move relative to the fixing base 113 in the direction perpendicular to the optical axis of the lens, and therefore adjustment can be performed with respect to the movement of the optical axis of the lens.

In the present embodiment, 4 first drive coils 170 may be provided. It is to be understood that 4 first drive coils 170 are merely preferred embodiments, and are exemplary embodiments for enabling those skilled in the art to fully understand the present invention, and the present invention recited in the claims is not limited to 4.

The upper spring piece 151 is arranged in a central symmetry with respect to a center line parallel to the optical axis of the lens, i.e., in a symmetrical position with respect to the center line, together with the 4 first driving coils 170, corresponding to the first driving coils 170.

The lens driving device 200 is further provided with a connecting wire 180.

The connecting wire 180 is connected to the spring piece 150, and one end of each first driving coil 170 is connected to the corresponding upper spring piece 151, and the other end is connected to the lower spring piece 152. Alternatively, the magnetism detecting element 181 having the first driving circuit may be connected to the end of each first driving coil, and the magnetism detecting element 181 having the first driving circuit may be connected to the spring piece 150 and also connected to the connection wire 180.

The magnetic detection element 181 having the first driving circuit is an example, and may be a magnetic detection element. The magnetic detection element 181 having the first drive circuit detects the magnetism of the magnetic steel 160 corresponding to the magnetic detection element to detect the position of the lens module 130 moving in the optical axis direction, thereby enabling adjustment relating to the movement of the lens in the optical axis direction to be performed more efficiently.

In order to cope with the change in the center of gravity of the lens driving device caused by the weight of the magnetic detection element 181 having the first driving circuit and the corresponding magnetic steel 160, the lever member 30 having the connection portion connected to the blade as the driving portion of the blade driving device, the rotating member 40 having the connection portion connected to the lever member, the driving magnet 50 having the magnetic pole surface, the wound coil 60, the terminal 70 for power supply, the attracting magnet or the magnetic body 80 are arranged so as to be shifted from the quadrant in the planar direction, whereby the center of gravity at the time of driving the lens can be corrected.

Similarly, the magnetic steel 160 and the second driving coil 171 are provided in 4 numbers corresponding to the first driving coil 170, and are each arranged so as to be centrosymmetric with respect to a center line parallel to the optical axis of the lens, that is, so as to be arranged at a position symmetric with respect to the center line.

The second driving coil 171 and the second driving coil auxiliary 173 are electrically connected to the connection terminal 115 provided in the connection wire fixing base and connected to the outside, but may be connected to the magnetic detection element 182 having a second driving circuit, and the magnetic detection element 182 having the second driving circuit is an example, and may be a driving IC having both magnetic detection. The magnetic detection element 182 having the second driving circuit is located at a position facing the magnetic steel 160, and can detect the position of the magnetic steel 160 moving together with the support frame 120.

When the optical axis of the lens moves due to shaking or tends to move, current can be caused to flow into the 4 second driving coils 171 disposed in the horizontal vicinity of the center of gravity position of the lens module or into the second driving coil 171 and the second driving coil auxiliary 172, and the second driving coils 171 and the second driving coil auxiliary are fixed, so that the support frame 120 can move relative to the fixing base 113 in the direction orthogonal to the optical axis of the lens while keeping balance with respect to the center of gravity of the moving object efficiently based on the principle of the acting force and the reaction force, or can suppress the tendency of movement of the optical axis of the lens. Therefore, the movement of the optical axis of the lens can be adjusted.

The lens driving device 200 described above may be used in an imaging device 400 for a portable information apparatus 300 such as a so-called smart phone, a so-called functional phone, or a tablet device shown in fig. 10.

With the blade driving device 100 and the lens driving device 200 of the present invention, relative to the movement of the lens in the optical axis direction and the movement in the direction perpendicular to the optical axis direction, the wiring for power supply of the blade drive device is routed from the terminal 70 for power supply via the spring reed 150, connected to a connection terminal 115 provided on the connection wire fixing base and connected to the outside through a connection wire 180, therefore, the blade 21 can be operated, and therefore, the terminal 70 for power supply has spring property, thereby simplifying the assembly and simultaneously achieving the purpose of moving the optical axis direction for focusing and the movement perpendicular to the optical axis direction for correcting the image shake without interfering with the movement of the lens, this can realize appropriate light amount adjustment by the blade 21 and improve the quality of a captured image.

The above is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, and all equivalent modifications and variations made by those skilled in the art based on the disclosure of the present invention are included in the present invention described in the claims of the present application.

Description of the symbols

10 … base part for supporting a blade

11 … shaft for supporting a rotating member having a connecting part connected to a lever member

12 … shaft for supporting rod member having connection part connected with vane

20 … blade chamber for forming blade

21 … blade

22 … plate member with caliber and forming blade chamber

23 … plate member having caliber and forming blade chamber and covering blade

30 … rod member having connection part connected with blade

31 … connection part with vane

40 … A pivoting member having a connecting part connected to a lever member

41 … connecting part connected with rod part

42 … sliding part staggered in height direction

50 … magnet for driving having magnetic pole surface

60 … wound coil

70 … terminal for supplying power

80 … magnet or magnetic body for attraction

100 … blade driving device

110 … casing

Base for fixing 111 … connecting wire

112 … cover

113 … fixing base

114 … accommodating space

115 … connection terminal for external connection provided on the connection wire fixing base

120 … support frame

130 … lens module

131 … projection

Center of gravity position of 132 … lens module

140 … support member

141 … ball bearing surface

142 … cylindrical holding member

150 … spring plate

151 … upper spring leaf

152 … lower spring leaf

160 … magnetic steel

161 … magnetic steel corresponding to magnetic detection element

170 … first drive coil

171 … second drive coil

172 … second drive coil aid

180 … connecting line

181 … magnetic detecting element having first driving circuit

182 … magnetic detecting element having second driving circuit

190 … magnetic yoke

200 … lens driving device

300 … Portable information device

400 … camera device.