Camera module and electronic device

By designing a blade opening and closing device, the problems of thinness and privacy protection in electronic devices are solved, achieving effective photography blocking and stable electrical connection in a limited space. It is suitable for electronic devices such as laptops and smart speakers.

CN114077117BActive Publication Date: 2026-03-24COPAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-18
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In the existing technology, with the miniaturization of electronic devices, traditional shutter mechanisms are difficult to make thinner in a limited space, resulting in a smaller height of the lens optical axis of the camera module, and there is a problem that the privacy protection of photography cannot be effectively blocked in case of malicious operation.

Method used

A blade opening and closing device is designed, including a base component, a cover plate, a blade component, an actuator, and a terminal plate. The actuator moves the blade component in the direction perpendicular to the optical axis to realize the opening and closing of the opening. The terminal plate is electrically connected to the module substrate to ensure the thinness of the device and the stability of the electrical connection.

Benefits of technology

A thin blade opening and closing device has been developed in a limited space, which can effectively block unwanted photography, prevent user privacy from being leaked, and reduce the heat impact of welding through the design of the terminal board, thereby improving the reliability of the device.

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Abstract

The present application provides a leaf opening and closing device and an electronic device, which is thin and can be assembled in limited space. The leaf opening and closing device has a base member arranged on a module substrate provided with a lens unit, a partition plate arranged on the opposite side of the module substrate relative to the base member, and a cover plate arranged on the opposite side of the base member relative to the partition plate. The partition plate and the cover plate are respectively formed with an opening on the optical axis of the lens unit. The leaf opening and closing device has a leaf member capable of moving in the X direction inside a leaf chamber formed between the cover plate and the partition plate, an actuator moving the leaf member between a closed position closing the opening and an open position opening the opening, and a terminal plate extending in the Z direction. The terminal plate is electrically connected with the actuator, and has a connecting portion at the end on the module substrate side for electrically connecting with the contact of the module substrate.
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Description

TECHNICAL FIELD

[0001] The present application relates to a leaf shutter device and an electronic device, and particularly relates to a leaf shutter device capable of opening and closing an opening by a leaf member. BACKGROUND

[0002] In recent years, various electronic devices typified by smartphones, smart speakers, and drones are assembled with cameras. In such cameras, there are many cameras in which a lens opening is always open, and many cameras in which a state capable of photographing is always maintained. In this case, if a camera is operated by a third person with malice, an image or a video of a user that is not intended by the user can be obtained by the camera, and used for a crime.

[0003] In particular, recently, the number of electronic devices in which a camera is built-in and connected to a network such as the Internet is increasing, and an electronic device connected to a network can be remotely operated by a program with malice without the user knowing. If an electronic device is remotely operated, photographing can be performed without the user knowing, and thus an image or a video can be obtained by a camera and transmitted to the outside. Thus, from the viewpoint of protecting the privacy of a user, a mechanism capable of blocking photographing by a camera in a situation not intended by the user is also desired.

[0004] As such a mechanism for blocking photographing by a camera, a mechanism in which a leaf is opened and closed between a lens and a subject, like a shutter mechanism used in a camera in the past (for example, refer to Patent Literature 1), is considered, but as the progress of miniaturization of electronic devices, the space in which a camera module can be assembled is also smaller, and thus the conventional shutter mechanism is difficult to assemble in such a limited space. In particular, in electronic devices in recent years, it is required that the height in the optical axis direction of a lens of a camera module be smaller, that is, thin.

[0005] Patent Literature 1: Japanese Patent Application Laid-Open No. 2009-288327 SUMMARY

[0006] The present application was completed in view of the problems of the conventional technology, and aims to provide a thin leaf shutter device capable of being assembled in a limited space and an electronic device provided with the leaf shutter device.

[0007] According to a first aspect of the present application, there is provided a thin shutter device capable of being assembled in a limited space. The shutter device is capable of being mounted to a module substrate provided with a lens unit. The shutter device includes a base member disposed on the module substrate, and a cover plate covering at least a portion of the base member. The cover plate has an opening formed in an optical axis of the lens unit. The shutter device includes a shutter member capable of moving in a shutter direction perpendicular to the optical axis inside a shutter chamber formed between the cover plate and the base member, an actuator moving the shutter member between a closed position closing the opening and an open position opening the opening, and a terminal plate extending in parallel with the optical axis. The terminal plate is electrically connected to the actuator. The terminal plate has a connection portion at an end portion on the module substrate side for electrically connecting to a contact of the module substrate.

[0008] In addition, according to a second aspect of the present application, there is provided an electronic device including the module substrate, the lens unit mounted to the module substrate, and the shutter device. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a perspective view showing a shutter device of an embodiment of the present application together with a module substrate and a lens unit.

[0010] Figure 2 is an exploded perspective view of the shutter device of Figure 1 .

[0011] Figure 3 is a schematic longitudinal sectional view of the shutter device of Figure 1 .

[0012] Figure 4 is a schematic front view of the shutter device of Figure 1 .

[0013] Figure 5 is a schematic plan view of the shutter device of Figure 1 .

[0014] Figure 6A is a plan view schematically showing an example of an operation of the actuator shown in Figure 2 .

[0015] Figure 6B is a plan view schematically showing an example of an operation of the actuator shown in Figure 2 .

[0016] Figure 7A is a plan view schematically showing a position of the shutter member moved by the actuator shown in Figure 6A .

[0017] Figure 7B is a plan view schematically showing the position of a blade member moved by Figure 6B the actuator shown.

[0018] Figure 8 is a schematic view showing a notebook computer as an electronic device of one embodiment of the present application.

[0019] Explanation of Reference Numerals

[0020] 1: shutter device; 2: module substrate; 3: lens unit; 10: base member; 11: shaft; 12: guide portion; 13A, 13B, 13C, 13D: peripheral wall; 20: actuator; 21: yoke; 21A, 21B: arm portion; 22: coil base; 23: coil; 24: rotor magnet; 25: lever member; 26: engagement portion; 27: terminal; 28: terminal plate; 30: partition; 31: opening; 32: partition; 33: circular-arc groove; 40: cover plate; 41: opening; 50: blade member; 51: cam groove; 100: notebook computer; 120: window; P: optical axis. DETAILED DESCRIPTION

[0021] Hereinafter, with reference to Figures 1 to 8 Embodiments of a shutter device of the present application will be described in detail. In Figures 1 to 8 , the same reference numerals are attached to the same or equivalent constituent elements, and repetitive description is omitted. Also, in Figures 1 to 8 , the scale or size of each constituent element is sometimes exaggerated, or a part of the constituent element is sometimes omitted. In the following description, the terms "first", "second", and the like are used only for the purpose of distinguishing one constituent element from another, and do not denote a particular order or sequence.

[0022] Figure 1 is a perspective view showing a shutter device 1 of one embodiment of the present application, Figure 2 is an exploded perspective view, Figure 3 is a schematic longitudinal sectional view, Figure 4 is a schematic front view, Figure 5 is a schematic plan view. As Figures 1 to 5 shown, the shutter device 1 of the present embodiment is mounted, for example, on a camera module assembled to an electronic device, specifically, on a module substrate 2 provided with a lens unit 3. Also, in Figure 3 , the illustration of a part of the components is simplified or omitted for easy understanding, and the size of a part of the components is exaggerated for illustration. In the present embodiment, for convenience, the +Z direction in Figure 1 is referred to as "up" or "upper", and the -Z direction is referred to as "down" or "lower".

[0023] As Figures 1 to 5 shown, the shutter 1 is provided with: a base member 10 mounted to the module substrate 2; an actuator 20 provided on the base member 10; a partition plate 30 disposed on the opposite side of the base member 10 from the module substrate 2; a cover plate 40 covering the upper portion of the base member 10; a shutter member 50 disposed between the cover plate 40 and the partition plate 30; and a partition plate 32 disposed between the actuator 20 and the shutter member 50. The shutter 1 is mounted to the same face of the module substrate 2 as the face on which the lens unit 3 is provided.

[0024] As Figure 2 and Figure 3 shown, the base member 10 is formed with a substantially rectangular parallelepiped-shaped housing space S in which the lens unit 3 mounted to the module substrate 2 is housed. More specifically, the base member 10 has peripheral walls 13A, 13B, 13C, 13D that surround the periphery of the lens unit 3, and the housing space S in which the lens unit 3 is housed is defined by these peripheral walls 13A, 13B, 13C, 13D, the partition plate 30, and the module substrate 2. The partition plate 30 is disposed on the upper surface 13E of the peripheral walls 13A, 13B, 13C, 13D.

[0025] The partition plate 30 and the cover plate 40 are each formed with an opening 31, 41 on the optical axis P of the lens unit 3. In the present embodiment, a different partition plate 32 is provided from the partition plate 30 in which the opening 31 is formed, but the partition plate 32 and the partition plate 30 in which the opening 31 is formed can also be constituted by one partition plate. Also, in other embodiments, the partition plate 30 and / or the partition plate 32 can be omitted. In the case where the partition plate 30 is omitted, the aperture described later is determined by the opening 41 of the cover plate 40.

[0026] The cover plate 40 is fixed to the base member 10 together with the partition plates 30, 32, etc. by pins 42, 43. The fixing member of the cover plate 40 is not limited to a pin, and for example, a screw or the like can be used to fix the cover plate 40 to the base member 10.

[0027] The actuator 20 includes a yoke 21 composed of a magnetic body, a coil base 22, a coil 23 wound around the yoke 21 and the coil base 22, a rotor magnet 24 rotatably installed to the shaft 11 extending in the +Z direction from the base member 10, and a stem member 25 coupled to the rotor magnet. The yoke 21 of the present embodiment is flat in the Z direction and has a U shape including two arm portions 21A, 21B. The coil 23 is wound around one arm portion 21A. The rotor magnet 24 is composed of magnets having different magnetic poles around the shaft 11, which are disposed between the arm portions 21A, 21B of the yoke 21. The stem member 25 has a cylindrical engagement portion 26 extending in the +Z direction outside in the radial direction of the rotor magnet 24.

[0028] The coil base 22 has a terminal 27 protruding in the -Y direction, to which an end portion of the coil 23 is wound. The end portion of the coil 23 is fixed to the terminal 27 with solder 60 together with a terminal plate 28 composed of a metal plate, as shown in FIG. 6, for example. The terminal plate 28 extends in parallel with the XZ plane and has a connection portion 29 at an end portion on the module substrate 2 side (-Z direction side). The connection portion 29 is electrically connected to the contact 2A of the module substrate 2 with solder 61, as shown in FIG. 7, for example. In this way, the coil 23 of the actuator 20 is electrically connected to a wiring (not shown) in the module substrate 2 via the terminal plate 28. Figure 1 Figure 1 Figure 4

[0029] The vane member 50 includes a base 52 formed with a cam groove 51 and a vane 53 fixed to the base 52. The cam groove 51 extends in a manner that gradually changes in the +X direction toward the -Y direction. The width of the cam groove 51 in the X direction is slightly larger than the outer diameter of the engagement portion 26 of the stem member 25 of the actuator 20. In the present embodiment, the base 52 is formed separately from the vane 53, but the base 52 and the vane 53 can be integrated to constitute the vane member 50. In other embodiments, the vane member 50 can be moved without using the cam groove 51.

[0030] The vane member 50 is disposed between guide portions 12 (see FIG. 2) extending in the +Z direction from the Y direction edges of the base member 10, and is configured to be guided by the guide portions 12 of the base member 10 and to be movable in the X direction. That is, the vane member 50 is configured to be movable in the X direction (opening / closing direction) inside a vane chamber formed between the cover plate 40 and the partition plates 30 and 32. Figure 2

[0031] ​​​​The baffle 30 is formed with an opening 31 (aperture) that determines the amount of light incident on the lens unit 3. Therefore, the baffle 30 is also sometimes referred to as an aperture plate. In addition, in the case where the baffle 30 is omitted, the opening 41 of the cover plate 40 functions as the above-mentioned aperture.

[0032] The baffle 32 is formed with a circular-arc groove 33 along a circular arc centered on the shaft 11 of the base member 10. The width of this circular-arc groove 33 in the radial direction is slightly greater than the outer diameter of the engaging portion 26 of the rod member 25 of the actuator 20. The engaging portion 26 of the rod member 25 is inserted through the circular-arc groove 33 of the baffle 32 into the inside of the cam groove 51 of the vane member 50. Thus, the engaging portion 26 of the rod member 25 is configured to move along a circle centered on the shaft 11 of the base member 10 inside the circular-arc groove 33 of the baffle 32 and to be able to move inside the cam groove 51 by engaging with the cam groove 51 of the vane member 50. By the engagement of the engaging portion 26 of the rod member 25 of the actuator 20 with the cam groove 51 of the vane member 50, the vane member 50 is caused to move in the X direction in conjunction with the movement of the engaging portion 26 of the rod member 25 of the actuator 20.

[0033] Figure 6A and Figure 6B is a plan view schematically showing an example of the operation of the actuator 20. In the actuator 20 of the present embodiment, when the coil 23 of the actuator 20 is energized by the wiring of the module substrate 2, the arm portions 21A, 21B of the yoke 21 are magnetized to have mutually opposite magnetic poles, and thus the rotor magnet 24 is rotated by the attraction of the magnetic force of the arm portions 21A, 21B.

[0034] For example, when the coil 23 of the actuator 20 is energized in one direction, the arm portions 21A, 21B of the yoke 21 are magnetized to have magnetism as shown in Figure 6A , and the magnetic poles of the rotor magnet 24 are attracted by the opposite magnetic poles of the arm portions 21A, 21B of the yoke 21, respectively, and thus the rotor magnet 24 rotates clockwise about the shaft 11. At this time, the engaging portion 26 of the rod member 25 engages with the cam groove 51 of the vane member 50, and the vane member 50 moves in the -X direction, and thus becomes the position shown in Figure 7A . In this position, the vane member 50 does not close the opening 31 of the baffle 32 and the opening 41 of the cover plate 40, and thus the openings 31, 41 are open. That is, light from the outside directly enters the lens of the lens unit 3 through the opening 31 of the baffle 32 and the opening 41 of the cover plate 40, and thus it is possible to take a picture by the lens unit 3. Hereinafter, the position of the rotor magnet 24 shown in Figure 6A and the position of the vane member 50 shown in Figure 7A will be referred to as "open position", respectively.

[0035] In addition, when the coil 23 of the actuator 20 is energized in the opposite direction to Figure 6AWhen the coil 23 of the actuator 20 is energized in the opposite direction, the arms 21A and 21B of the yoke 21, as Figure 6B Magnetized as shown, the magnetic poles of rotor magnet 24 are attracted by the opposite magnetic poles of arms 21A and 21B of yoke 21, causing rotor magnet 24 to rotate counterclockwise around shaft 11. At this time, the engaging portion 26 of rod member 25 engages with the cam groove 51 of blade member 50, causing blade member 50 to move in the +X direction, thus becoming... Figure 7B The position shown. In this position, the blade component 50 (blade 53) closes the opening 31 of the partition 32 and the opening 41 of the cover plate 40. That is, the blade component 50 is located on the optical axis P of the lens unit 3, and the light passing through the opening 41 of the cover plate 40 is blocked by the blade component 50. Hereinafter, Figure 6B The position of the rotor magnet 24 shown and Figure 7B The positions of the blade components 50 shown are referred to as the "closed positions".

[0036] In this way, the actuator 20, through the power supply from the module substrate 2, causes the rotor magnet 24 to rotate between the closed position and the open position, thereby enabling the blade member 50 to move between the closed position and the open position via the engaging portion 26 of the rod member 25.

[0037] For example, if the blade 53 is made of a material that prevents light (visible light, infrared light, etc.) captured by the lens unit 3 from passing through, when the blade component 50 is in the closed position, the light passing through the opening 41 of the cover plate 40 is blocked by the blade 53 and does not reach the lens unit 3. Therefore, even if the lens unit 3 is activated, it cannot obtain an image or video, thus preventing the acquisition of unwanted images or videos by the user.

[0038] Furthermore, the blades 53 of the blade component 50 do not need to block all the light incident on the lens unit 3 through the openings 41 and 31. Therefore, the blades 53 can be configured to block only a portion of the light incident on the lens unit 3. For example, the blades 53 can be made of a material with low transmittance to the light (visible light, infrared light, etc.) captured by the lens unit 3, or the blades 53 can be colored or patterned (mesh or grid pattern, concentric circle pattern, etc.) by means of embossing or perforation, thereby blocking a portion of the light incident on the lens unit 3. In this case, a portion of the image or picture obtained by the lens unit 3 is unclear or invisible, thus preventing the acquisition of images or pictures that the user does not want.

[0039] Furthermore, the blades 53 can be configured to apply a predetermined optical effect (mosaic filter, scattering, diffuse reflection, etc.) to the light incident on the lens unit 3 through the openings 41 and 31. In this case, a portion of the image or picture obtained by the lens unit 3 is unclear or invisible, thus preventing the acquisition of images or pictures that the user does not want.

[0040] In this embodiment, the shape of the yoke 21 is adjusted so that, even when no current is supplied to the coil 23 of the actuator 20, the rotor magnet 24 is attracted by the yoke 21 through the magnetic force of the rotor magnet 24. Specifically, in Figure 6A In the indicated state, even if the current supply to the coil 23 of the actuator 20 is stopped, the rotor magnet 24 can remain in the open position due to the magnetic force exerted on the yoke 21 by the rotor magnet 24. Similarly, in Figure 6B In the state shown, even if the current supply to the coil 23 of the actuator 20 is stopped, the rotor magnet 24 can remain in the closed position by the magnetic force exerted on the yoke 21 by the rotor magnet 24.

[0041] By adjusting the shape of the yoke 21 in this way, it is possible to prevent the blade component 50 from undesirably moving from the open or closed position, or stopping between the open and closed positions, when no current is supplied to the coil 23 of the actuator 20. Alternatively, the shape of the yoke 21 can be adjusted so that the rotor magnet 24 remains only in one of the open or closed positions. In particular, as long as the rotor magnet 24 can remain in the closed position, even without supplying current to the coil 23 of the actuator 20, the openings 41, 31 are closed by the blades 53 of the blade component 50, thus preventing the acquisition of unwanted images or videos by the user.

[0042] Here, as Figure 4 As shown, the terminal plate 28 is a flat metal plate extending parallel to the Z-axis, and is connected to the contact 2A of the module substrate 2 via a connecting portion 29 formed on the side of the module substrate 2. With this structure, the height H in the Z-direction of the blade opening / closing device 1 (refer to...) can be... Figure 3 To minimize the impact, the actuator 20 is electrically connected to the module substrate 2 via the terminal plate 28. Furthermore, with this structure, within the blade opening / closing device 1, the connecting portion 29 of the terminal plate 28 is positioned opposite each other on the -Z direction side, and the blade component 50 is positioned opposite each other on the +Z direction side. Therefore, the heat generated when the connecting portion 29 is connected to the contact 2A of the module substrate 2 via the solder 61 is difficult to transfer to the blade component 50, and the flux used in the solder 61 is difficult to flow into the blade component 50. Thus, malfunctions such as the blade component 50 being unable to open or close due to deformation caused by the heat of the solder 61, or being unable to open or close due to flux adhesion, can be suppressed.

[0043] Furthermore, the base component 10 of this embodiment includes: a main body 14, which forms a storage space S for housing the lens unit 3; and a terminal part 15, which is connected to the main body 14 in the X direction. Figure 5 As shown, the width of the terminal portion 15 of the base component 10 in the Y direction (width direction) is smaller than the width W1 of the main body portion 14 by a reduction width W2. Therefore, a reduction space R is formed on the -X direction side of the main body portion 14. The aforementioned terminal plate 28 is disposed in this reduction space R. With this structure, the width W1 in the Y direction of the blade opening / closing device 1 can be minimized, and the actuator 20 can be electrically connected to the wiring of the module substrate 2 via the terminal plate 28. Furthermore, with this structure, within the blade opening / closing device 1, the connecting portion 29 of the terminal plate 28 is disposed opposite to the -X direction side, and the blade component 50 is disposed opposite to the +X direction side. Therefore, the heat generated when the connecting portion 29 is connected to the contact 2A of the module substrate 2 via the solder 61 is difficult to transfer to the blade component 50, and the flux used in the solder 61 is difficult to flow into the blade component 50. Therefore, it is possible to further suppress malfunctions such as the blade component 50 being unable to open or close due to deformation caused by the heat of the solder 61, or being unable to open or close due to flux adhesion.

[0044] In this case, if the retraction width W2 is increased unnecessarily, it will be difficult to accommodate the actuator 20 inside the base component 10. Therefore, the retraction width W2 is preferably less than half the width W1 of the main body 14 of the base component 10.

[0045] However, when the blade component 50 is in the closed position, the outer surface of the blade 53 of the blade component 50 is exposed to the outside through the opening 41 of the cover plate 40. Therefore, it is preferable to color the outer surface of the blade 53 with a visually recognizable color (e.g., red), or to apply a visually recognizable geometric shape (star, quadrilateral, polygon, etc.) or design such as a logo or illustration. By applying such a visually recognizable color or design to the outer surface of the blade 53, it is easy to confirm that the blade 53 is in the closed position, thereby easily identifying and protecting the user from unwanted images or videos.

[0046] In addition, in the illustrated embodiment, the opening 41 of the cover plate 40 and the opening 31 of the partition plate 30 are circular, but the shape of these openings 41 and 31 is not limited to circular, and can also be any shape such as rectangular or elliptical.

[0047] Furthermore, in the above embodiment, an example of an actuator 20 obtained by combining a flat U-shaped yoke 21 and a rotor magnet 24 was described, but the actuator 20 used is not limited to this. Any structure can be used as long as it can move the blade component 50 between the closed position and the open position.

[0048] Figure 8 is a drawing showing a notebook computer 100 as an example of an electronic device assembled with the blade opening and closing device 1 described above. The lid portion 110 of the notebook computer 100 is provided with a window 120 for a camera, and the blade opening and closing device 1 is assembled in the notebook computer 100 in such a manner that the lens unit 3 is positioned at a position corresponding to the window 120. Thus, the notebook computer 100 having a camera function is realized.

[0049] In the example described above, the notebook computer 100 is exemplified as an electronic device assembled with the blade opening and closing device 1, but the blade opening and closing device of the present application is not only applicable to notebook computers, but can be generally applicable to electronic devices having a camera function such as smart speakers or home security cameras.

[0050] The preferred embodiments of the present application have been described above, but the present application is not limited to the above-described embodiments, and can of course be implemented in various different ways within the scope of the technical concept thereof.

[0051] As described above, according to the first mode of the present application, a thin blade opening and closing device capable of being assembled in a limited space is provided. The blade opening and closing device can be mounted to a module substrate provided with a lens unit. The blade opening and closing device has a base member disposed on the module substrate, and a cover plate covering at least a portion of the base member. An opening is formed in the cover plate on an optical axis of the lens unit. The blade opening and closing device has a blade member movable inside a blade chamber formed between the cover plate and the base member in an opening and closing direction perpendicular to the optical axis, an actuator moving the blade member between a closed position closing the opening and an open position opening the opening, and a terminal plate extending in parallel with the optical axis. The terminal plate is electrically connected to the actuator. The terminal plate has a connection portion at an end portion on the module substrate side for electrical connection to a contact of the module substrate.

[0052] By constituting the blade opening and closing device in this way, the height of the blade opening and closing device in the optical axis direction can be minimized, and the actuator and the wiring of the module substrate can be electrically connected by the terminal plate. Moreover, by being constituted in this way, the connection portion of the terminal plate and the blade member are disposed on opposite sides of each other in the optical axis direction inside the blade opening and closing device, so heat generated when the connection portion and the contact of the module substrate are connected by solder, for example, is difficult to transmit to the blade member, and flux used for the solder is difficult to flow into the blade member. Thus, it is possible to suppress failure such as deformation of the blade member due to heat of the solder and failure to open and close due to attachment of the flux.

[0053] The base member can also have a main body portion that forms a housing space in which the lens unit is housed, and a terminal portion that is connected to the main body portion in the opening and closing direction. In the width direction that is perpendicular to both the optical axis direction and the opening and closing direction, the width of the terminal portion can be smaller than the width of the main body portion by a prescribed retreat width, and a retreat space that is adjacent to the main body portion can be formed in the opening and closing direction. In this case, the terminal plate is preferably disposed in the retreat space. By configuring the blade opening and closing device in this way, the width of the blade opening and closing device can be minimized, and the terminal plate can electrically connect the actuator and the wiring of the module substrate. Furthermore, by being configured in this way, the connection portion of the terminal plate and the blade member are disposed on opposite sides of each other in the opening and closing direction within the blade opening and closing device, so heat generated when the connection portion is connected to the contact of the module substrate by soldering, for example, is difficult to transmit to the blade member, and flux used by the soldering is difficult to flow into the blade member. Therefore, the blade member can be further prevented from deforming due to the heat of the soldering and being unable to open and close, or being unable to open and close due to the attachment of flux, and the like.

[0054] The actuator can also have a flat U-shaped yoke having two arm portions, a coil that is wound around one of the two arm portions of the yoke, a rotor magnet that is rotatably disposed between the two arm portions of the yoke, and a lever member that is linked to the rotor magnet. The lever member has an engagement portion that engages with a cam groove formed in the blade member.

[0055] The blade opening and closing device is preferably mounted to the same face of the module substrate as the face on which the lens unit is disposed. Furthermore, the base member preferably has a surrounding wall that surrounds the periphery of the lens unit.

[0056] The actuator is preferably configured to hold the blade member in at least one of the open position and the closed position in a state in which no current is supplied to the actuator.

[0057] The blade member can also be configured to block at least a portion of light that is incident on the lens unit through the opening, thereby hindering imaging based on the lens unit, or can be configured to apply a prescribed optical effect to light that is incident on the lens unit through the opening, thereby hindering imaging based on the lens unit. Furthermore, the blade member can also have coloring or design that is visually recognizable applied to an outer surface.

[0058] According to a second aspect of the present application, there is provided an electronic device that includes the module substrate, the lens unit mounted to the module substrate, and the blade opening and closing device.

Claims

1. A camera module, comprising: a module substrate provided with a lens unit and having a contact on a surface that is electrically connected to an internal wiring; and a shutter device capable of being mounted to the module substrate, the shutter device comprising: a base member disposed on the module substrate; a cover plate covering at least a portion of the base member and having an opening formed on an optical axis of the lens unit; a shutter member capable of moving within a shutter chamber formed between the cover plate and the base member in a direction of opening and closing that is perpendicular to the optical axis; an actuator that moves the shutter member between a closed position that closes the opening and an open position that opens the opening, the actuator having a coil base with a terminal; and a terminal plate that extends in parallel with the optical axis and is electrically connected to the actuator, the terminal plate having a connection portion at an end portion on the side of the module substrate for electrically connecting to the contact of the module substrate, the terminal being fixed to the terminal plate, the connection portion of the terminal plate being fixed to the module substrate by solder and being electrically connected to the contact on the surface of the module substrate by solder.

2. The camera module according to claim 1, wherein the base member has: a main body portion formed with a receiving space that receives the lens unit; and a terminal portion connected to the main body portion in the direction of opening and closing, the width of the terminal portion in a width direction that is perpendicular to both the optical axis direction and the direction of opening and closing is less than the width of the main body portion by a prescribed retreat width, a retreat space adjacent to the main body portion is formed in the direction of opening and closing, and the terminal plate is disposed in the retreat space.

3. The camera module according to claim 2, wherein the prescribed retreat width is less than or equal to half the width of the main body portion.

4. The camera module according to any one of claims 1 to 3, wherein the shutter device is mounted to the same surface of the module substrate as the surface on which the lens unit is provided.

5. An electronic device comprising: the module substrate; the lens unit mounted to the module substrate; and the camera module according to any one of claims 1 to 4. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Citation Information

Patent Citations

  • Camera module

    JP2009288327A

  • Imaging device

    JP2009130647A