Optical element driving device, camera module, and camera mounting device

Abstract

The present application relates to an optical element driving device that drives an optical element, a camera module, and a camera mounting device. The optical element driving device drives an optical element, and includes a holding portion that can hold the optical element, a housing portion that houses the holding portion inside, and a support portion that is interposed between an outer peripheral surface of the holding portion and an inner peripheral surface of the housing portion, has a plurality of rolling members that are held to a raceway in a rollable manner, and supports the holding portion in a manner that allows the holding portion to move with respect to the housing portion using the plurality of rolling members, at least one of the outer peripheral surface and the inner peripheral surface having a first recess formed in a portion that opposes the raceway.

Description

TECHNICAL FIELD

[0001] The present application relates to an optical element driving device that drives an optical element, a camera module, and a camera-mounted device. BACKGROUND

[0002] Generally, a camera module is mounted in a camera-mounted device such as a smartphone or a drone. An optical element driving device that drives an optical element is used in such a camera module. Note that a drone is an unmanned aerial vehicle that can fly by remote operation or automatic control, and is also called a "multicopter".

[0003] The optical element driving device has an auto focus function (hereinafter referred to as "AF function", AF: Auto Focus). The optical element driving device moves a lens in an optical axis direction by the AF function, and automatically performs focusing when a subject is photographed.

[0004] For example, Patent Literature 1 discloses a lens driving device that includes a lens holding portion that holds a lens, an intermediate moving body that guides the lens holding portion in an optical axis direction along a guide member, and a driving portion that moves the lens holding portion in the optical axis direction along the guide member. The intermediate moving body includes a plurality of balls that are guided by guide grooves of the guide member, and a race that holds the balls in a rollable manner.

[0005] PRIOR ART DOCUMENTS

[0006] PATENT LITERATURE

[0007] Patent Literature 1: Japanese Patent Application Publication No. 2001-141977 SUMMARY

[0008] PROBLEMS TO BE SOLVED BY THE INVENTION

[0009] In the lens driving device, as shown in Patent Literature 1, a ball and a race are used in order to guide the lens holding portion in the optical axis direction. In such a structure, in order to improve lubricity between the ball and the race, the ball is coated with lubricating oil. Moreover, even in a case where the position of the ball held by the race is displaced from a reference position due to external impact such as a fall, the ball can roll due to the coated lubricating oil.

[0010] Thus, the lubricating oil applied to the balls contributes to lubrication between the balls and the race. However, the lubricating oil can be scattered around, for example, due to external impact such as dropping, and in a case where the scattered lubricating oil enters a gap between the race and a member around the race, the race can be stuck to the member. The race moves in the optical axis direction together with the balls, but in a case where sticking of the race occurs, resistance to movement of the lens holding portion can be generated.

[0011] An object of the present application is to provide an optical element driving apparatus, a camera module, and a camera-equipped device, which can prevent generation of resistance to movement of an optical element.

[0012] Solution to Problem

[0013] The optical element driving apparatus of the present application drives an optical element, and includes:

[0014] a holding portion that can hold the optical element;

[0015] a housing portion that houses the holding portion inside;

[0016] a support portion that is interposed between an outer peripheral surface of the holding portion and an inner peripheral surface of the housing portion, has a plurality of rolling members that are held in a rolling manner to the race, and supports the holding portion in a manner that allows the holding portion to move with respect to the housing portion using the plurality of rolling members,

[0017] at least one of the outer peripheral surface and the inner peripheral surface has a first recess formed in a portion that opposes the race.

[0018] The camera module of the present application includes:

[0019] the above-described optical element driving apparatus;

[0020] a driving portion that drives the holding portion; and

[0021] a camera portion that captures an image of a subject using the optical element.

[0022] The camera-equipped device of the present application is an information device or a transportation device, and includes:

[0023] the above-described camera module; and

[0024] an image processing portion that processes image information obtained by the camera module.

[0025] Effects of the Invention

[0026] According to the present application, it is possible to prevent generation of resistance to movement of an optical element. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1A This is a front view of a smartphone equipped with a camera module according to an embodiment of the present invention.

[0028] Figure 1B yes Figure 1A The image shows a rear view of a smartphone.

[0029] Figure 2 This is a 3D diagram showing the camera module and camera unit.

[0030] Figure 3 This is a top view showing the main body of the optical element drive device of the camera module.

[0031] Figure 4 It is an enlarged representation Figure 3 A diagram of the support portion of the main body of the optical element driving device.

[0032] Figure 5 It is Figure 3 An exploded perspective view showing a portion of the support section of the main body of the optical element driving device.

[0033] Figure 6 It means Figure 3 The diagram shows a side view of the outer peripheral surface of the holding part of the main body of the optical element driving device, and also shows the periphery of the support part.

[0034] Figure 7 It means Figure 3 The diagram shows a side view of the inner circumferential surface of the housing of the optical element driving device body, and also shows the periphery of the support portion.

[0035] Figure 8 It means Figure 3 The diagram shows a top view of the substrate portion of the main body of the optical element driving device, and also a view showing the substrate portion unfolded into a plane.

[0036] Figure 9 Viewed from the outside Figure 3 The diagram shows the main body of the optical element driving device.

[0037] Figure 10 Viewed from the inside Figure 3 A diagram of the housing of the main body of the optical element driving device.

[0038] Figure 11A This is a front view of a car that serves as a camera mounting device for equipping a vehicle-mounted camera module.

[0039] Figure 11B Viewed from the oblique rear side Figure 11A The image shown is a 3D view of the car. Detailed Implementation

[0040] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0041] [Smartphone]

[0042] Figure 1A and Figure 1B This diagram shows a smartphone M (an example of a camera mounting device) equipped with the camera module A of this embodiment. Figure 1A This is the main view of smartphone M. Figure 1B This is the rear view of the smartphone M.

[0043] The smartphone M has a dual-lens camera consisting of two rear cameras, OC1 and OC2. In this embodiment, camera module A is applied to the rear cameras OC1 and OC2.

[0044] Camera module A features AF (autofocus) capability, enabling automatic focusing when photographing the subject. It should be noted that camera module A may also feature image stabilization (OIS). OIS optically corrects for camera shake (vibration) during shooting, resulting in a clear, unblurred image.

[0045] [Camera Module]

[0046] Figure 2 This is a perspective view showing camera module A and camera unit 5. Figure 3 yes Figure 2 The image shows a top view of the optical element drive unit 1 of the camera module A, including the main body 4 of the optical element drive unit. Figure 2 and Figure 3 As shown, in this embodiment, an orthogonal coordinate system (X, Y, Z) is used for explanation. Furthermore, in the figures described later, an orthogonal coordinate system (X, Y, Z) is also used for explanation.

[0047] For example, when camera module A is shooting with smartphone M, the X direction is the up-down (or left-right) direction, the Y direction is the left-right (or up-down) direction, and the Z direction is the forward-backward direction. That is, the Z direction is... Figure 2 The optical axis direction of the optical axis OA of the lens section 2 shown is in Figure 2 In the diagram, the upper side (+Z side) is the light-receiving side along the optical axis, and the lower side (-Z side) is the imaging side along the optical axis.

[0048] Note that, in the following, the optical axis OA will be used for explanation, but the optical axis direction of the optical axis OA can also be changed depending on the type of optical element, in other words, the optical path direction, the focal point direction (the direction in which the focal point is adjusted). Here, the passage of light formed by the opening portion 301 of the cover 3 described later, the opening portion 11 of the holding portion 10 described later, or the accommodation opening portion 21 of the accommodation portion 20 described later is the optical path, and the direction of the extension of the optical path (the direction in which each opening portion is penetrated) is the optical path direction.

[0049] As shown in FIG. 1, the camera module A is provided with the optical element driving device 1 that implements the AF function, the lens portion 2 in which a lens is accommodated in a cylindrical lens barrel, and the imaging portion 5 that images an object image that has passed through the lens portion 2, and the like. That is, the optical element driving device 1 is a so-called lens driving device that drives the lens portion 2 as an optical element. Figure 2 Figure 3 As shown in FIG. 1, the camera module A is provided with the optical element driving device 1 that implements the AF function, the lens portion 2 in which a lens is accommodated in a cylindrical lens barrel, and the imaging portion 5 that images an object image that has passed through the lens portion 2, and the like. That is, the optical element driving device 1 is a so-called lens driving device that drives the lens portion 2 as an optical element.

[0050] [Cover]

[0051] In the optical element driving device 1, the outside of the optical element driving device main body 4 is covered by the cover 3. The cover 3 is a capped quadrangular tube-shaped body that is substantially rectangular in plan view from the Z direction. In the present embodiment, the cover 3 is substantially square in plan view. The cover 3 has a substantially circular opening portion 301 in the upper surface. The lens portion 2 is configured to be accommodated in the opening portion 11 of the holding portion 10 of the optical element driving device main body 4, to face the outside from the opening portion 301 of the cover 3, and to project toward the light receiving side more than the opening surface of the cover 3 in conjunction with movement in the Z direction. The inner wall of the cover 3 is fixed to the accommodation portion 20 (the bottom portion 22a) of the optical element driving device main body 4, for example, by adhesion, to accommodate the optical element driving device main body 4.

[0052] The cover 3 has a member that blocks electromagnetic waves from the outside of the optical element driving device 1 or the inside of the cover 3, such as a shielding member composed of a magnetic body.

[0053] [Imaging portion]

[0054] The imaging portion 5 is disposed on the imaging side of the optical element driving device 1. The imaging portion 5 has, for example, an image sensor substrate 501, an imaging element 502 mounted to the image sensor substrate 501, and a control portion 503. The imaging element 502 is composed of, for example, a CCD (charge-coupled device) type image sensor, a CMOS (complementary metal oxide semiconductor) type image sensor, or the like, and images an object image that has passed through the lens portion 2.

[0055] ​The control unit 503, for example, is composed of a control IC, and performs drive control of the optical element driving device 1. The optical element driving device 1 is mounted on the image sensor substrate 501 and is mechanically and electrically connected. The control unit 503 may also be provided on the image sensor substrate 501, or it may be provided on a camera-mounted device (in this embodiment, a smartphone M) that carries the camera module A.

[0056] It should be noted that, Figure 2 In this method, the lens portion 2 is driven in the Z direction relative to the image sensor substrate 501, which is fixed in position, thereby imaging the image of the subject onto the imaging element 502. However, for example, the imaging element 502 can also be driven in the Z direction. In this case, the lens portion 2 is fixed to the cover 3, and the image of the subject is imaged onto the imaging element 502 by driving the imaging element 502, which is an optical element, in the Z direction using the optical element driving device 1.

[0057] [Main body of optical component driving device]

[0058] The main body 4 of the optical element driving device is the main body of the optical element driving device 1 that drives the lens section 2, which is an optical element, in the Z direction. It should be noted that, for the sake of convenience, the following explanation will be based on the premise that the optical element driving device 1 drives the lens section 2. However, as mentioned above, the optical element driving device 1 can also drive the imaging element 502.

[0059] like Figure 3 As shown, the main body 4 of the optical element driving device includes: a holding part 10, a receiving part 20, a support part 30A, 30B, 30C, a driving part 40A, 40B, and a substrate part 50.

[0060] [Maintenance Department]

[0061] The retaining part 10 has a frame part 12 with an opening 11 formed in the center, and the opening 11 is configured to retain the lens part 2 inside. For example, the opening 11 is configured to retain the lens part 2 on its inner peripheral surface by forming a mounting groove or the like. In this way, the retaining part 10 retains the lens part 2 in a manner that surrounds the outer periphery of the lens part 2.

[0062] The outer peripheral side of the frame 12, i.e., the outer peripheral surface 13, is movable in the Z direction at multiple locations (in Figure 3 (As an example, there are 3 parts) supported by support parts 30A, 30B, and 30C extending along the Z direction.

[0063] In addition, multiple parts of the outer peripheral surface 13 (in) Figure 3The holding section 10 is held at the driving sections 40A, 40B at two positions as an example, and is movable in the Z direction by driving of the driving sections 40A, 40B.

[0064] Further, in the outer peripheral surface 13, magnets 14A, 14B for Z direction position detection are provided at a plurality of positions (at two positions as an example) thereof. Figure 3 The magnets 14A, 14B are opposed to position detection sensors 54A, 54B described later, respectively.

[0065] Note that the opening section 11 is formed in a cylindrical shape corresponding to the cylindrical lens section 2, but can be changed to an appropriate shape corresponding to the shape of the lens section 2.

[0066] Further, in a case where the optical element driving device 1 drives the imaging element 502, the holding section 10 can not be a frame section, that is, the holding section 10 can not have the opening section 11, in which case, for example, the holding section 10 can be configured to hold the imaging element 502 on the upper surface (the light receiving side surface) of the holding section 10.

[0067] [Accommodating section]

[0068] The accommodating section 20 has a frame section 22 in which an accommodating opening section 21 is formed in a central portion, and the accommodating opening section 21 is configured to surround the outer periphery of the holding section 10 to be able to accommodate the holding section 10 inside.

[0069] The supporting sections 30A, 30B, 30C are provided at a plurality of positions of the inner peripheral surface 23 inside the accommodating opening section 21. The accommodating section 20 supports the holding section 10 by the supporting sections 30A, 30B, 30C in a manner such that the holding section 10 is movable in the Z direction.

[0070] Further, the driving sections 40A, 40B are provided at a plurality of positions of the inner peripheral surface 23. The driving sections 40A, 40B provided at the accommodating section 20 move the holding section 10 in the Z direction. The holding section 10 functions as a movable section driven by the driving sections 40A, 40B, and the accommodating section 20 functions as a fixed section with respect to the holding section 10.

[0071] The inner peripheral surface 23 is formed in a manner corresponding to the shape of the outer peripheral surface 13 of the holding section 10 when viewed from above. In Figure 3 The shape of the outer peripheral surface 13 of the holding section 10 and the inner peripheral surface 23 of the accommodating opening section 21 is an example, and can be changed as appropriate, for example, in accordance with the arrangement of the supporting sections 30A, 30B, 30C and the driving sections 40A, 40B.

[0072] The frame portion 22 has a bottom portion 22a and a side wall portion 22b. The inner wall of the cover 3 described above is fixed to the bottom portion 22a, for example, by adhesive bonding. The base plate portion 50 is mounted on the outer peripheral surface 24 of the side wall portion 22b.

[0073] [Support Section]

[0074] Support portions 30A, 30B, and 30C are located between the outer peripheral surface 13 of the retaining portion 10 and the inner peripheral surface 23 of the receiving portion 20, supporting the retaining portion 10 in a manner that allows the retaining portion 10 to move in the Z direction relative to the receiving portion 20. Figure 3 As shown, support parts 30A, 30B, and 30C are respectively positioned at three locations distributed circumferentially on the inner circumferential surface 23 (outer circumferential surface 13). For support parts 30A, 30B, and 30C, refer to... Figure 4 and Figure 5 Please provide an explanation.

[0075] Figure 4 It is an enlarged representation Figure 3 The figure shows the support part 30C of the main body 4 of the optical element driving device. Figure 5 It is Figure 3 An exploded perspective view of a portion of the support portion 30C of the main body 4 of the optical element driving device shown. It should be noted that, as an example, here... Figure 4 and Figure 5 The support portion 30C is illustrated in the diagram. Additionally, regarding... Figure 4 The structure around the support portion 30C shown (recesses 16a, 16b, 27a, 27b, etc.) is described later. Figure 6 and Figure 7 Please provide an explanation.

[0076] The support portion 30C includes: a first groove portion 15, a second groove portion 26, a first guide rail component 31, a second guide rail component 32, a rolling component 33 (e.g., a ball component, etc.), and a seat ring 34.

[0077] The first groove 15 is a V-shaped recess extending along the Z direction on the outer peripheral surface 13 of the frame portion 12 of the retaining portion 10. The second groove 26 is a V-shaped recess extending along the Z direction on the inner peripheral surface 23 of the frame portion 22 of the receiving portion 20. The first groove 15 and the second groove 26 are arranged opposite each other.

[0078] The first guide rail component 31 is a component with a V-shaped cross-section that extends along the length direction of the Z direction during installation. The first guide rail component 31 has a V-shaped guide groove 31a (groove in the present invention) on the side where the rolling component 33 is disposed, and the side opposite to this side is mounted to the first groove portion 15.

[0079] The second guide rail component 32 is also a V-shaped section component extending along the length direction of the Z direction during installation. The second guide rail component 32 has a V-shaped guide groove 32a (groove in this invention) on the side where the rolling component 33 is disposed, and the side opposite to this side is mounted on the second groove portion 26. The first guide rail component 31 is mounted on the first groove portion 15, and the second guide rail component 32 is mounted on the second groove portion 26, so that each guide groove 31a and guide groove 32a is arranged opposite to each other.

[0080] Between the guide groove 31a of the first guide rail component 31 and the guide groove 32a of the second guide rail component 32, a plurality of ( Figure 5 In this example, there are two rolling members 33, which are clamped in a rolling manner. The multiple rolling members 33 roll along guide grooves 31a and 32a, thereby being guided in the Z direction.

[0081] The seat ring 34 has retaining holes 34a corresponding to the number of rolling members 33. The multiple rolling members 33 are held in a rollable manner in their respective retaining holes 34a and are arranged along the Z direction. The seat ring 34 maintains a constant distance between the multiple rolling members 33.

[0082] Support portion 30C has the structure described above, and support portions 30A and 30B also have the same structure. With support portions 30A, 30B, and 30C configured in this way, the retaining portion 10 is supported relative to the receiving portion 20 in a manner that allows it to move in the Z direction. Furthermore, as described above, support portions 30A, 30B, and 30C have a plurality of rolling members 33 arranged along the Z direction, thus more stably suppressing the tilting of the retaining portion 10.

[0083] Furthermore, the rolling member 33 is typically made of materials such as ceramic or alloy. By providing the first guide rail member 31 and the second guide rail member 32, which are made of materials such as metal, in the first groove 15 and the second groove 26, the first guide rail member 31 and the second guide rail member 32 are not easily deformed even when subjected to pressing pressure from the rolling member 33. With this structure, the support portions 30A, 30B, and 30C can stably support the retaining portion 10 in a manner that allows it to move in the Z direction.

[0084] [Structure surrounding the support section]

[0085] Figure 6 It means Figure 3 The diagram shows a side view of the outer peripheral surface 13 of the holding portion 10 of the main body 4 of the optical element driving device, and also shows the periphery of the support portion 30C. Additionally, Figure 7 It means Figure 3The diagram shows a side view of the inner peripheral surface 23 of the housing portion 20 of the main body 4 of the optical element driving device, and also shows the periphery of the support portion 30C. It should be noted that, as an example, here... Figure 6 and Figure 7 The support part 30C is illustrated in the diagram.

[0086] As described above, a first groove 15 is formed on the outer peripheral surface 13 of the frame portion 12 of the retaining portion 10, and a first guide rail member 31 is mounted on the first groove 15. Furthermore, a second groove 26 is formed on the inner peripheral surface 23 of the frame portion 22 of the receiving portion 20, and a second guide rail member 32 is mounted on the second groove 26. Moreover, a seat ring 34 is arranged such that a rolling member 33 is held between the guide groove 31a of the first guide rail member 31 and the guide groove 32a of the second guide rail member 32.

[0087] To ensure lubrication between the rolling member 33 and the seat ring 34 (retaining hole 34a), lubricating oil is also applied to the rolling member 33 in this embodiment. Due to the applied lubricating oil, even if the position of the rolling member 33 held in the seat ring 34 (retaining hole 34a) is displaced from the reference position due to external impacts such as falling, the rolling member 33 can still roll.

[0088] On the other hand, the lubricating oil applied to the rolling component 33 may scatter around due to external impacts such as falling. If the scattered lubricating oil enters the gap between the seat ring 34 and the surrounding components, the seat ring 34 may stick to the component.

[0089] For example, such as Figure 4 As shown, a gap is formed between the seat ring 34 and its outer peripheral surface 13 and inner peripheral surface 23, allowing the seat ring 34 to move in the Z direction. If lubricating oil enters between the seat ring 34 and the seat ring 34 in this gap, the seat ring 34 may stick to the outer peripheral surface 13 or inner peripheral surface 23 due to the lubricating oil, thereby hindering the movement of the seat ring 34 and consequently hindering the movement of the retaining part 10.

[0090] Therefore, in this embodiment, the device is configured to have recesses 16a and 16b (the first recesses in this invention), which are formed in the portion of the outer peripheral surface 13 opposite to the seat ring 34 and are recessed from the outer peripheral surface 13. Additionally, the device is configured to have recesses 27a and 27b (the first recesses in this invention), which are formed in the portion of the inner peripheral surface 23 opposite to the seat ring 34 and are recessed from the inner peripheral surface 23.

[0091] Also refer to Figure 6 As shown in the side view, the recess 16a is configured in a direction orthogonal to the Z-direction of the seat ring 34. Figure 6 One end of (in the Y direction)Figure 6 Opposite to the left side of the seat ring 34, and extending along one end of the seat ring 34, which extends in the Z direction.

[0092] Furthermore, the recess 16b is configured in a direction orthogonal to the Z-direction of the seat ring 34. Figure 6 The other end (in the Y direction) Figure 6 Opposite to the right side of the seat ring 34, and extending along the other end of the seat ring 34, which extends in the Z direction.

[0093] In addition, further reference Figure 7 As shown in the side view, the recess 27a is configured in a direction orthogonal to the Z-direction of the seat ring 34. Figure 6 One end of (in the Y direction) Figure 7 Opposite to the right side of the seat ring 34, and extending along one end of the seat ring 34, which extends in the Z direction.

[0094] Furthermore, the recess 27b is configured in a direction orthogonal to the Z-direction of the seat ring 34. Figure 6 The other end (in the Y direction) Figure 7 Opposite to the left side of the seat ring 34, and extending along the other end of the seat ring 34, which extends in the Z direction.

[0095] The seat ring 34 can rotate about the Z-axis with the rolling member 33 as the center of rotation in the gap between the outer peripheral surface 13 and the inner peripheral surface 23 (see reference). Figure 4 ).

[0096] The seat ring 34 rotates around the Z-axis, so that one end of the seat ring 34 ( Figure 4 The lower side of the middle, and is Figure 6 When the left side of the seat ring 34 is close to the outer peripheral surface 13, the gap between the seat ring 34 and the outer peripheral surface 13 narrows. Additionally, on the other end side of the seat ring 34 (… Figure 4 The lower side of the middle, and is Figure 6 When the right side of the seat ring 34 is close to the outer peripheral surface 13, the gap between the seat ring 34 and the outer peripheral surface 13 also narrows.

[0097] In this embodiment, by providing the aforementioned recesses 16a and 16b, the bottom surfaces of the recesses 16a and 16b are positioned away from the outer peripheral surface 13 relative to one end and the other end of the seat ring 34. This prevents lubricating oil from easily contacting the seat ring 34, even if it spills and adheres to the recesses 16a and 16b.

[0098] Furthermore, the first groove 15 and the recesses 16a and 16b are in a direction orthogonal to the Z direction ( Figure 4 and Figure 6(In the Y direction) it is separated by convex parts 19a and 19b.

[0099] The protrusions 19a and 19b restrict the rotation of the seat ring 34 about the Z-axis, and ensure a specified gap between the seat ring 34 and the bottom surfaces of the recesses 16a and 16b, making it difficult for the lubricating oil adhering to the recesses 16a and 16b to come into contact with the seat ring 34. In addition, the protrusions 19a and 19b ensure that the lubricating oil remains in the first groove 15.

[0100] In this way, by providing recesses 16a and 16b on the outer peripheral surface 13, the scattered lubricating oil is less likely to come into contact with the seat ring 34, thereby preventing the seat ring 34 from sticking due to the lubricating oil.

[0101] It should be noted that, Figure 6 In the middle, the protrusions 19a and 19b extend along the Z direction with the same width in the Y direction, but they are not limited to the same width. For example, in the Z direction of the protrusions 19a and 19b, the width of the central part can be wider or narrower relative to the two ends. In addition, the width can gradually increase or decrease from the two ends to the central part.

[0102] Recesses 27a and 27b also perform the same function as recesses 16a and 16b.

[0103] The seat ring 34 rotates around the Z-axis, so that one end of the seat ring 34 ( Figure 4 The upper side of the middle, and is Figure 7 When the right side of the seat ring 34 is close to the inner circumferential surface 23, the gap between the seat ring 34 and the inner circumferential surface 23 narrows. Additionally, on the other end side of the seat ring 34 (… Figure 4 The upper side of the middle, and is Figure 7 When the left side of the seat ring 34 is close to the inner circumferential surface 23, the gap between the seat ring 34 and the inner circumferential surface 23 also narrows.

[0104] In this embodiment, by providing the aforementioned recesses 27a and 27b, the bottom surfaces of the recesses 27a and 27b are positioned away from the inner peripheral surface 23 relative to one end and the other end of the seat ring 34. This prevents lubricating oil from easily contacting the seat ring 34, even if it spills and adheres to the recesses 27a and 27b.

[0105] Furthermore, the second groove 26 and the recesses 27a and 27b are in a direction orthogonal to the Z direction ( Figure 4 and Figure 7 (In the Y direction) it is separated by convex parts 29a and 29b.

[0106] The protrusions 29a and 29b restrict the rotation of the seat ring 34 about the Z-axis, and ensure a specified gap between the seat ring 34 and the bottom surfaces of the recesses 27a and 27b, making it difficult for the lubricating oil adhering to the recesses 27a and 27b to come into contact with the seat ring 34. In addition, the protrusions 29a and 29b ensure that the lubricating oil remains in the second groove 26.

[0107] In this way, by providing recesses 27a and 27b on the inner circumferential surface 23, the scattered lubricating oil is less likely to come into contact with the seat ring 34, thereby preventing the seat ring 34 from sticking due to the lubricating oil.

[0108] It should be noted that, here, recesses 16a and 16b are provided on the outer peripheral surface 13, and recesses 27a and 27b are provided on the inner peripheral surface 23. However, it is also possible to have a structure that provides any one of the recesses 16a and 16b and recesses 27a and 27b.

[0109] Alternatively, at least one of the outer peripheral surface 13 and the inner peripheral surface 23 may have other recesses that are formed adjacent to at least one of the recesses 16a, 16b, 27a, 27b in a direction orthogonal to the Z direction and located on the side of the recess opposite to the support portion 30C side.

[0110] As an example, refer to Figure 6 It can be seen that the outer peripheral surface 13 has a direction orthogonal to the Z direction ( Figure 6 A recess 17 (the second recess in this invention) is formed adjacent to a recess 16a in the Y direction and is located on the side of the recess 16a opposite to the side of the support portion 30C (first groove portion 15). The opening area of ​​the recess 17 is larger than that of the recess 16a, and it is recessed more deeply than the recess 16a.

[0111] By providing a recess 17 adjacent to the recess 16a, the lubricating oil in the recess 16a extends to the recess 17 in a direction away from the seat ring 34, so that the lubricating oil does not remain in the recess 16a, thereby preventing the seat ring 34 from sticking due to the lubricating oil.

[0112] It should be noted that for structures adjacent to recesses 16a, 16b or 27a, 27b, any structure that allows lubricating oil to spread away from the seat ring 34 is acceptable, and is not limited to recesses like 17. For example, it could also be as follows: Figure 4 As shown, an inclined portion 18 is provided adjacent to the recess 16b, so that the lubricating oil in the recess 16b extends toward the inclined portion 18 in a direction away from the seat ring 34.

[0113] [Driver Section]

[0114] The driving units 40A and 40B drive the holding unit 10 in the Z direction relative to the receiving unit 20. For example... Figure 3As shown, the driving units 40A and 40B are respectively disposed at two locations distributed in the circumferential direction on the inner peripheral surface 23 (outer peripheral surface 13). The main body 4 of the optical element driving device utilizes the aforementioned support units 30A, 30B, 30C and driving units 40A and 40B to drive the lens unit 2 and the holding unit 10 together in the Z direction, thereby realizing the AF function.

[0115] exist Figure 3 In the example shown, the drive units 40A and 40B are respectively located at corners 22bB and 22bC that are different from the corner 22bA where the support unit 30A is located, and are point-symmetrical with respect to the optical axis OA when viewed from above. With this configuration, even if the weight of optical elements such as the lens unit 2 increases, the holding unit 10 can be moved stably.

[0116] As drive units 40A and 40B, actuators with piezoelectric elements, such as ultrasonic motors, are used. It should be noted that drive sources such as voice coil motors (VCMs) can also be used.

[0117] [Substrate part]

[0118] and Figure 3 Also refer to Figure 8 , Figure 9 The substrate portion 50 will be described. Figure 8 It means Figure 3 The diagram shows a top view of the substrate portion 50 of the main body 4 of the optical element driving device, and also a view showing the substrate portion 50 unfolded into a plane. Figure 9 Viewed from the outside Figure 3 The diagram shows the main body 4 of the optical element driving device, and it is from... Figure 3 The diagram shows the view taken from direction D1. It should be noted that drive units 40A and 40B are not mounted on the FPC 51 of the base plate 50; however, in... Figure 8 In order to make the positional relationship easier to understand, drive units 40A and 40B are shown.

[0119] The substrate 50 has circuitry for driving the drive units 40A and 40B. The substrate 50 includes: an FPC (Flexible Printed Circuit) 51, a driver IC 52, inductors 53A and 53B, position detection sensors 54A and 54B, etc.

[0120] FPC51 is a flexible substrate constructed by stacking thin insulating layers such as resin films and metal layers such as copper foil. Although the illustration is omitted, the metal layers form circuitry for signal lines and power lines, electrically connecting drive units 40A and 40B, driver IC 52, inductors 53A and 53B, position detection sensors 54A and 54B, etc.

[0121] The driver IC 52 is an IC that controls a drive signal that drives the drive sections 40A, 40B. The driver IC 52, for example, outputs a drive signal on the basis of a detection signal detected by the position detection sensors 54A, 54B, and the output drive signal is output to the drive sections 40A, 40B via the inductors 53A, 53B.

[0122] The inductors 53A, 53B each have a coil and are output with a voltage (input voltage) in the drive signal input from the driver IC 52 boosted.

[0123] The position detection sensors 54A, 54B are, for example, magnetic sensors such as Hall elements and output a signal corresponding to a position in the Z direction of the magnets 14A, 14B (magnetic field intensity of the magnets 14A, 14B) as a detection signal.

[0124] Note that although illustration is omitted, connection wiring that electrically connects the drive sections 40A, 40B is provided in the FPC 51.

[0125] In order to mount the driver IC 52, the inductors 53A, 53B, and the position detection sensors 54A, 54B described above on the FPC 51, the FPC 51 is provided as one long substrate. Also, the FPC 51 is disposed in a manner of substantially one turn around the outer peripheral surface 24 along the outer peripheral surface 24 of the frame section 22 of the housing section 20.

[0126] In order to dispose the FPC 51 along the outer peripheral surface 24, the outer peripheral surface 24 of the portions of the corner sections 22bA, 22bB, 22bC is formed in a circular arc shape in plan view. Thus, the outer peripheral surface 24 of the portions including the corner sections 22bA, 22bB, 22bC enables the FPC 51 to be disposed in close contact with the outer peripheral surface 24. Therefore, it is not necessary to increase the size of the cover 3 disposed outside the FPC 51, and miniaturization of the entire device and cost reduction can be achieved.

[0127] In addition, the FPC 51 has an FPC main section 51a, FPC narrow sections 51b, 51c, and FPC end sections 51d, 51e. The FPC main section 51a connects the FPC narrow section 51b and the FPC end section 51d on one end side in the length direction and the FPC narrow section 51c and the FPC end section 51e on the other end side, and has the driver IC 52 and the position detection sensors 54A, 54B mounted thereto.

[0128] The FPC narrow sections 51b, 51c are portions in which the width in a direction orthogonal to the length direction is narrowed, which are disposed between the FPC main section 51a and the FPC end section 51d and between the FPC main section 51a and the FPC end section 51e. Figure 9As shown, the FPC narrow portions 51b, 51c are portions formed in a manner to avoid the portions of the disposition support portions 30B, 30C of the housing 20. By providing such FPC narrow portions 51b, 51c, it is not necessary to increase the size of the housing 3 disposed outside the FPC 51, and miniaturization of the entire device and cost reduction can be achieved.

[0129] The inductors 53A, 53B are mounted on the FPC end portions 51d, 51e, which are both end portions in the length direction of the FPC 51. As described above, the inductors 53A, 53B have coils, and there is emission of leakage magnetic flux and noise from the coils. The emission of leakage magnetic flux and noise can affect the position detection sensors 54A, 54B, and therefore, in order to secure a distance from the position detection sensors 54A, 54B, the inductors 53A, 53B are disposed on the FPC end portions 51d, 51e. On the other hand, for position detection, the position detection sensors 54A, 54B are disposed in positions close to the drive portions 40A, 40B where driving force acts.

[0130] In addition, in order to suppress leakage magnetic flux and noise, the optical element driving device main body 4 is provided with housing members 60A, 60B and a metal layer 55.

[0131] The housing members 60A, 60B are formed of a material that is metallic and shields leakage magnetic flux and noise. The housing members 60A, 60B have a cover portion 61, a flange portion 63, an opening portion, and the like.

[0132] The cover portion 61 is a covered quadrangular cylindrical body having an opening portion. The flange portion 63 extends along the outer periphery of the opening portion of the cover portion 61. Specifically, the flange portion 63 extends along the surface of the FPC end portion 51d, 51e, outside the periphery of the edge of the cover portion 61, which is the outer periphery portion of the opening portion.

[0133] Furthermore, the housing members 60A, 60B are configured to house the inductors 53A, 53B mounted on the FPC end portions 51d, 51e in the opening portion of the cover portion 61, and to cover the inductors 53A, 53B in a state where the flange portion 63 is disposed on the FPC end portions 51d, 51e.

[0134] In this way, the housing members 60A, 60B are provided not only with the cover portion 61 but also with the flange portion 63. Therefore, by the cover portion 61 and the flange portion 63, it is possible to shield leakage magnetic flux and noise emitted from the inductors 53A, 53B toward the housing members 60A, 60B in a wider range. As a result, compared to a housing member without a flange portion, it is possible to further reduce leakage of magnetic flux and noise to the outside.

[0135] The flange 63 can also be fixed to the surface of the FPC ends 51d and 51e using adhesives, for example. Compared with the case without flanges, the contact area between the flange 63 and the surface of the FPC ends 51d and 51e is wider, so the cover members 60A and 60B can be reliably fixed to the surface of the FPC ends 51d and 51e.

[0136] At the FPC end 51d, a metal layer 55 is disposed opposite to the inductor 53A mounted on the FPC end 51d. The metal layer 55 is, for example, disposed on the side of the FPC end 51d opposite to the side where the inductor 53A is mounted. Furthermore, the metal layer 55 is formed by a solid pattern that, when viewed from above, includes at least the area where the inductor 53A is disposed.

[0137] Thus, since a metal layer 55 is provided at the FPC end 51d where the inductor 53A is mounted, leakage flux and noise radiating from the inductor 53A to the FPC end 51d can be shielded using the metal layer 55. As a result, compared to an FPC without the aforementioned metal layer 55, the flux and noise leaking to the outside through the FPC 51 can be reduced.

[0138] Furthermore, preferred options include... Figure 8 The metal layer 55 is formed in a manner that overlaps with the flange portion 63, as shown. As a result, the gap between the flange portion 63 and the metal layer 55 can be reduced. This is particularly effective when using an FPC as the substrate.

[0139] In this way, by reducing the gap between the flange 63 and the metal layer 55, the cover member 60A and the metal layer 55 can cover almost the entire area around the inductor 53A. Consequently, leakage flux and noise radiated from the inductor 53A can be shielded using the cover member 60A and the metal layer 55. As a result, leakage flux and noise to the outside can be further reduced.

[0140] Cover components 60A and 60B are made of a metallic material that reduces magnetic flux leakage and noise. For example, cover components 60A and 60B use a laminated structure in which at least layers of copper and nickel are laminated on top of an iron layer such as SPCC (Steel Plate Cold Commercial) which serves as a strong magnet. In this laminated structure, the iron layer, copper layer, and nickel layer are laminated in that order, thereby preventing the iron layer from rusting.

[0141] The copper layer is also stacked to counteract the increased inductance caused by the iron layer. By making the copper layer thicker than the nickel layer, the shielding performance against noise can also be improved. Thus, in the stacked structure of at least iron, copper and nickel layers in the cover components 60A and 60B, a structure in which the copper layer is thicker than the nickel layer is more preferred.

[0142] In addition, for the metal layer 55, a power supply layer or a ground layer that supplies power in the circuit of the FPC 51 can also be used. In addition, the metal layer 55 is not limited to one layer, and can also be composed of a plurality of layers that are stacked with an insulating layer interposed therebetween. For example, in the case where two layers are stacked with an insulating layer interposed therebetween, one layer can be provided as the power supply layer described above, and the other layer can be provided as the ground layer.

[0143] In addition, in the case where the metal layer 55 does not use the power supply layer or the ground layer of the circuit of the FPC 51, the metal layer 55 can also be composed of a plurality of metal layers that are stacked, similarly to the case of the cover members 60A and 60B.

[0144] Here, Figure 10 is a view of the housing portion 20 of the optical element driving device main body 4, as viewed from the inside Figure 3 is a view of the housing portion 20 of the optical element driving device main body 4, as viewed from the inside Figure 3 is a view of the housing portion 20 of the optical element driving device main body 4, as viewed from the inside

[0145] In order to achieve miniaturization of the device, the housing portion 20 has insertion portions 25A and 25B into which the cover members 60A and 60B of the above-described structure are inserted. As shown in Figure 10 The insertion portions 25A and 25B are provided so as to penetrate the side wall portions 22b of the frame portion 22, but can also be a structure such as a recess that does not penetrate the side wall portions 22b, as long as the cover members 60A and 60B can be inserted.

[0146] By inserting the cover members 60A and 60B into the insertion portions 25A and 25B in this manner, it is possible to achieve miniaturization of the entire device, and cost reduction.

[0147] In addition, in the case where the structure shown in Figure 10 is used, for example, if the housing portion 20 and the FPC end portions 51d are fixed by an adhesive or the like, the flange portions 63 are fixed between the housing portion 20 and the FPC 51, and therefore, it is also possible to not fix the flange portions 63 to the surfaces of the FPC end portions 51d and 51e. By this, it is possible to simplify the manufacturing process of the optical element driving device main body 4.

[0148] In addition, in the case where the cover members 60A and 60B are inserted in a manner that engages with the insertion portions 25A and 25B, the cover members 60A and 60B have a reinforcing effect on the housing portion 20 that has the insertion portions 25A and 25B, and it is possible to suppress deformation and the like of the housing portion 20.

[0149] [Other Embodiments]

[0150] The present application is not limited to the above-described embodiments, and can be modified within the scope of the gist thereof.

[0151] For example, in the above embodiment, a first guide rail component 31 and a second guide rail component 32 are provided in the first groove 15 and the second groove 26. However, these components may not be provided, and the first groove 15 and the second groove 26 may directly clamp the rolling component 33.

[0152] Furthermore, in the above embodiment, the support portions 30A, 30B, and 30C are configured with the same structure. However, one or more of these support portions may be provided with a force-applying member that applies a pushing force to the rolling member 33, thereby pressing the outer peripheral surface 13 of the retaining portion 10 inward. By providing such a force-applying member, it is possible to suppress the tilting of the retaining portion 10.

[0153] Here, as Figure 3 As shown, the frame portion 22 of the receiving portion 20 has four corner portions 22bA, 22bB, 22bC, and 22bD. When viewed from above, the corner portions 22bA, 22bB, 22bC, and 22bD have space. Since the support portion with the force-applying member requires space, the support portion is arranged in at least one of the corner portions 22bA, 22bB, 22bC, and 22bD.

[0154] For example, in Figure 3 In the example shown, the aforementioned force-applying component is provided in the support portion 30A, and the support portion 30A is positioned at the corner 22bA. This configuration enables space-saving design of the device, overall miniaturization, and cost reduction.

[0155] Alternatively, the rolling member 33 can be configured such that, in at least one of the guide grooves 31a of the first guide rail member 31 and 32a of the second guide rail member 32, the rolling member 33 can be displaced in the circumferential direction. For example... Figure 4 As shown, the first groove 15 and the second groove 26 are formed as V-shaped grooves; however, at least one of these grooves may be formed, for example, as a U-shaped groove with a width wider than the diameter of the rolling member 33. Similarly, the first guide rail member 31 and the second guide rail member 32 are formed with a V-shaped cross-section; however, for example, at least one of these guide rail members may be formed with an I-shaped cross-section. With this structure, at least one of the grooves formed by the first groove 15 and the first guide rail member 31, and the grooves formed by the second groove 26 and the second guide rail member 32, is set as a U-shaped groove.

[0156] The U-shaped groove in this structure allows the rolling member 33 to move circumferentially within the groove, enabling relative displacement between the outer peripheral surface 13 of the holding part 10 and the inner peripheral surface 23 of the receiving part 20. This support structure absorbs any dimensional differences in the holding part 10, the receiving part 20, etc., or any differences in the assembled state of these parts.

[0157] Furthermore, when one or more of the support portions have the aforementioned force-applying member, in the support portion having the aforementioned U-shaped groove, the outer peripheral surface 13 of the retaining portion 10 and the inner peripheral surface 23 of the receiving portion 20 are relatively displaced so that the force of the pressing and rolling member 33 caused by the pushing force of the force-applying member is balanced by its reaction force. As a result, the support position of the retaining portion 10 is determined relative to the plurality of support portions including the support portion having the aforementioned U-shaped groove, and stable support without wobbling can be achieved.

[0158] exist Figure 3 In the example shown, the structure can be configured such that the support portion 30B located on the side between corner 22bB and corner 22bD, and the support portion 30C located on the side between corner 22bC and corner 22bD have the aforementioned U-shaped groove.

[0159] In addition, Figure 3 In the example shown, since the support parts 30B and 30C, which do not require space, are arranged on the side to avoid the corner parts 22bA, 22bB, 22bC, and 22bD, the drive parts 40A and 40B, which require space, can be arranged at the corner parts 22bB and 22bC.

[0160] Furthermore, in the above embodiment, two position detection sensors 54A and 54B are provided; however, a single position detection sensor may also be used. In this case, it is preferable to provide the position detection sensor near the support portion of the structure in which the rolling component is held by a V-shaped groove (in other words, the support portion without the aforementioned force-applying component and U-shaped groove). For example, in Figure 3 In the case where the support portion 30A has a force-applying member, the support portion 30B has a U-shaped groove, and the support portion 30C has a V-shaped groove that holds the rolling member, the support portion 30C serves as a reference (rotation center) for the holding portion 10, which is capable of relative displacement with respect to the receiving portion 20. Therefore, a position detection sensor 54B near the support portion 30C that serves as such a reference is sufficient.

[0161] In addition, the angles between the support portions 30A, 30B, 30C are preferably arranged at intervals of 120°, but the angles can be appropriately changed. In a case where the support portions 30A, 30B, 30C are arranged at angles other than intervals of 120° from each other, the following structure or arrangement is preferably provided.

[0162] For example, the support portion 30A is provided with an urging member, and one of the first groove portion 15 and the second groove portion 26 is provided as a U-shaped groove in one of the support portion 30B and the support portion 30C. Further, the pressing direction of the urging member of the support portion 30A to the rolling member is arranged in a direction toward the optical axis OA when viewed in plan, and the support portion 30B and the support portion 30C are arranged at positions symmetrical to the direction. By providing such a structure or arrangement, the pressing force received from the support portion 30A side in the support portion 30B and the support portion 30C is equal, and the holding portion 10 can be stably supported.

[0163] In addition, the support portions can be arranged at more than three positions in the circumferential direction of the inner circumferential surface 23 (the outer circumferential surface 13). In this case, the support portions are preferably arranged at positions that are multiples of three, such as six positions, nine positions, and the like, for the purpose of further supporting between three-point supports on the basis of being able to stably support the object.

[0164] In addition, in the above-described embodiment, the smartphone M is exemplified and described, but the present application can be applied to a camera-equipped device having a camera module and an image processing portion that processes image information obtained by the camera module. The camera-equipped device includes an information device and a transport device. The information device includes, for example, a portable telephone with a camera, a notebook computer, a tablet terminal, a portable game machine, a web camera, a vehicle-mounted device with a camera (for example, a rear monitoring device, a drive recorder device), and the like. In addition, the transport device includes, for example, an automobile and a drone, and the like.

[0165] Figure 11A 、 Figure 11B is a diagram showing an automobile V as a camera-equipped device equipped with a vehicle camera module VC (Vehicle Camera). Figure 11A is a front view of the automobile V, Figure 11B is a rear perspective view of the automobile V. The automobile V is equipped with the camera module A described in the above-described embodiment as the vehicle camera module VC. As shown in Figure 11A and Figure 11B , the vehicle camera module VC is mounted, for example, toward the front in the windshield or toward the rear in the tailgate. The vehicle camera module VC is used as a vehicle camera module for rear monitoring, a drive recorder, collision avoidance control, automatic driving control, and the like.

[0166] In addition, in the above-described embodiment, the optical element driving device 1 that drives the lens portion 2 as an optical element is described, but the optical element that becomes a driving target can be a mirror, a prism, or the like, which is an optical element other than a lens, and can be an optical element like the imaging element 502. In this case, the opening portion 11 of the holding portion 10 can change the shape according to the shape of the mounted optical element, and can not be provided according to the situation.

[0167] In addition, in the above-described embodiment, the optical element driving device 1 has an AF function, but not only the AF function, but also a zoom function or the like that moves the lens portion 2 in the Z direction.

[0168] The above-described embodiment of the present application has been described. It should be noted that the above description is an example of a preferred embodiment of the present application, and the scope of the present application is not limited thereto. That is, the description of the structure of the above-described device and the shape of each portion is an example, and of course, various changes or additions can be made to these examples within the scope of the present application.

[0169] Industrial Applicability

[0170] The optical element driving device and the camera module of the present application are useful, for example, for mounting on a smartphone, a portable telephone, a digital camera, a notebook computer, a tablet terminal, a portable game machine, and a camera mounting device such as a vehicle-mounted camera and a drone.

[0171] Explanation of Reference Signs

[0172] 1 Optical element driving device

[0173] 2 Lens portion

[0174] 3 Cover

[0175] 4 Optical element driving device main body

[0176] 5 Imaging portion

[0177] 10 Holding portion

[0178] 11 Opening portion

[0179] 12 Frame portion

[0180] 13 Outer peripheral surface

[0181] 14A, 14B Magnet

[0182] 15 First groove portion

[0183] 16a, 16b Concave portion

[0184] 17 Concave portion

[0185] 18 inclined portion

[0186] 19a, 19b protrusion

[0187] 20 accommodation portion

[0188] 21 accommodation opening portion

[0189] 22 frame portion

[0190] 22a bottom portion

[0191] 22b side wall portion

[0192] 22bA, 22bB, 22bC, 22bD corner portion

[0193] 23 inner peripheral surface

[0194] 24 outer peripheral surface

[0195] 25A, 25B insertion portion

[0196] 26 second groove portion

[0197] 27a, 27b recessed portion

[0198] 29a, 29b protrusion

[0199] 30A, 30B, 30C support portion

[0200] 31 first guide rail member

[0201] 32 second guide rail member

[0202] 31a, 32a guide groove

[0203] 33 rolling member

[0204] 34 retainer

[0205] 34a holding hole

[0206] 40A, 40B drive portion

[0207] 50 substrate portion

[0208] 51 FPC

[0209] 51a FPC main portion

[0210] 51b, 51c FPC narrow portion

[0211] 51d, 51e FPC end portion

[0212] 52 driver IC

[0213] 53A, 53B inductor

[0214] 54A, 54B position detection sensor

[0215] 55 metal layer

[0216] 60A, 60B cover member

[0217] 61 cover portion

[0218] 63 flange portion

[0219] 301 opening portion

[0220] 501 image sensor substrate

[0221] 502 image pickup element

[0222] 503 control portion

Claims

1. An optical element driving apparatus that drives an optical element, the optical element driving apparatus characterized by comprising: a holding portion that is capable of holding the optical element; a housing portion that houses the holding portion inside; and a support portion that has a plurality of rolling members held in a rollable manner to a race, and that supports the holding portion in a manner that the holding portion is capable of moving in a direction of an optical path of the optical element with respect to the housing portion using the plurality of rolling members, the plurality of rolling members being interposed between an outer peripheral surface of the holding portion and an inner peripheral surface of the housing portion in a state of being housed in a groove formed in at least one of the outer peripheral surface and the inner peripheral surface, at least one of the outer peripheral surface and the inner peripheral surface has a first recess formed in a portion opposite to the race, the first recess is disposed in a manner opposite to an end portion of the race in a direction orthogonal to the direction of the optical path, the first recess and the groove are spaced apart in the direction orthogonal to the direction of the optical path by a convex portion. 2.The optical element driving apparatus according to claim 1, wherein the first recess extends along the end portion of the race, the end portion of the race extending in the direction of the optical path. 3.The optical element driving apparatus according to claim 1, wherein at least one of the outer peripheral surface and the inner peripheral surface has a second recess formed in a manner adjacent to the first recess on a side opposite to the support portion side in the direction orthogonal to the direction of the optical path.

4. A camera module characterized by comprising: comprising: the optical element driving apparatus according to any one of claims 1 to 3; a driving portion that drives the holding portion; and an imaging portion that images an object image using the optical element. 5.A camera-mounting apparatus that is an information apparatus or a transport apparatus, the camera-mounting apparatus characterized by comprising: the camera module according to claim 4; and an image processing portion that processes image information obtained by the camera module.

Images