Imaging device

Abstract

To improve heat dissipation while reducing cost and ensuring the reliability of the flange back.SOLUTION: A camera body 1000 has a housing 1008 in which a metal plate 1402 is inserted into a resin member 1401 including a mount part 1403 attached with a lens mount 1002. The metal plate 1402 has a first plane part 1501 that is substantially perpendicular to an optical axis 1003, and one or more second plane parts 1502 that are bent in an optical axis direction from the first plane part 1501. The second plane parts 1502 are inserted into the mount part 1403.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an imaging device. [Background technology]

[0002] Conventionally, imaging devices such as digital cameras with interchangeable lens units have been known that use a part in which a metal plate is inserted into a resin member as an internal housing (Patent Document 1). However, generally, when an external force is applied to a part in which a metal plate is inserted into a resin member, the part may be deformed. In addition, the part may be deformed when peeling occurs at the interface between the resin and metal due to the external force. In Patent Document 1, the mirror box is formed from a single material to suppress changes in the flange back (the distance between the mount and the imaging surface) caused by deformation of the part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-178565 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the parts related to the flange back are made of metal, the rigidity and heat dissipation when an external force such as vibration or impact is applied can be improved, but the cost increases, whereas if the parts are made of resin, the heat dissipation decreases.

[0005] An object of the present invention is to improve heat dissipation while suppressing costs and ensuring the reliability of the flange back. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention provides a housing comprising a lens mount to which a lens unit can be attached, and a resin member having a mount portion to which the lens mount is attached, into which a metal member is inserted, wherein the metal member has a first planar portion approximately perpendicular to the optical axis of the lens unit, and at least one second planar portion bent from the first planar portion in the optical axis direction, and the second planar portion is inserted into the mount portion. Effect of the Invention

[0007] According to the present invention, it is possible to improve heat dissipation while suppressing costs and ensuring the reliability of the flange back. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of a camera system. [Diagram 2] FIG. [Diagram 3] FIG. 2 is an exploded perspective view of the internal structure of the camera body. [Figure 4] FIG. 2 is a perspective view of a metal plate before being inserted into a resin member. [Diagram 5] This is an XY cross-sectional view of the camera body seen from the front, and a YZ cross-sectional view seen from the +X side. [Figure 6] 2 is a perspective view and an exploded perspective view of the unit. FIG. [Figure 7] 4 is a YZ cross-sectional view of an elastic body into which a flexible substrate has been inserted, and a YZ cross-sectional view of a unit. FIG. [Figure 8] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] 1 is a schematic diagram of a camera system including an image capturing device according to an embodiment of the present invention. The camera system is configured as a digital single-lens reflex camera system, as an example. The camera system is configured with a camera body 1000 as an image capturing device, and a photographing lens 1001 that is detachable from the camera body 1000.

[0011] In addition to the photographing optical system 1101, the photographing lens 1001 is provided with an aperture 1102 for adjusting the amount of exposure. Although the photographing optical system 1101 is shown as a single lens, it is actually an optical system consisting of a group of multiple lenses. A lens unit can be attached to the lens mount 1002. For example, the photographing lens 1001 is electrically and mechanically connected to the camera body 1000 via the lens mount 1002. The photographing lens 1001 adjusts the focus of the photographing optical system 1101 by moving a focus lens, which is a part of the photographing optical system 1101, in the direction of an optical axis 1003 of the photographing optical system 1101 via a drive mechanism (not shown).

[0012] The imaging unit 1004 includes an imaging element 1201 and an optical low-pass filter 1202. The imaging element 1201 is composed of a CCD or CMOS sensor, etc. The imaging unit 1004 drives the imaging element 1201 either once or continuously to convert an optical image of a subject collected through the photographing lens 1001 into an electrical signal, thereby obtaining an image signal for a still image or a moving image. The optical low-pass filter 1202 is configured to prevent components of the subject image that are equal to or higher than a predetermined cutoff frequency from being transmitted to the imaging element 1201.

[0013] A focal plane shutter 1005 that adjusts the amount of light incident on the image sensor 1201 is disposed on the subject side (left side in FIG. 1) of the imaging unit 1004. The control board 1006 is a printed wiring board (PWB: Printed Wired Board). The control board 1006 includes a power supply circuit section, an image processing section, and control sections for various systems, and controls the operation of the entire camera body 1000.

[0014] Fig. 2 is a perspective view of the camera body 1000. Hereinafter, the directions of the various parts will be referred to based on the X, Y, and Z coordinate axes shown in Fig. 2 and elsewhere. For convenience, the subject side will be referred to as the front in the direction parallel to the optical axis direction. The control board 1006 side as viewed from the lens mount 1002 will be referred to as the rear. Therefore, in Fig. 2, the Y direction is the up-down direction, the Z direction is the front-rear direction, and the X direction is the left-right direction. In particular, the +Y direction is upward, and the +Z direction is forward. The +X direction is to the right as viewed from the subject side.

[0015] Camera body 1000 includes exterior cover 1007 as an exterior member. Exterior cover 1007 has a first grip portion 1301 that is a portion that a photographer grasps to hold camera body 1000. Exterior cover 1007 also has a second grip portion 3002 on the opposite side to first grip portion 1301 in the left-right direction.

[0016] The camera body 1000 is provided with a pop-up built-in flash 2001 at the front of the center in the left-right direction of the top surface, and an accessory shoe 2002 for attaching an external accessory behind the built-in flash 2001. Between the built-in flash 2001 and the accessory shoe 2002 in the front-rear direction, two first sound holes 2011 are provided in the exterior cover 1007. The first sound holes 2011 are openings for built-in microphones (microphone L 2021, microphone R 2022: FIG. 5(a)) described later to acquire stereo sound.

[0017] 3 is an exploded perspective view of the internal structure of the camera body 1000. The housing 1008 is a component in which a metal plate 1402, which is a metal member, is insert-molded into a resin member 1401. The lens mount 1002 is fixed to a mount portion 1403 of the resin member 1401. The lens biasing spring 1009 is a leaf spring for pulling the mount of the photographing lens 1001 into the lens mount 1002 of the camera body 1000, and is disposed between the lens mount 1002 and the mount portion 1403. The tripod seat 1010 is a metal plate having a tripod attachment portion, and is fixed to the bottom side of the housing 1008. The imaging unit 1004, the focal plane shutter 1005 (FIG. 1), and the control board 1006 are all fixed to the housing 1008 from the rear side.

[0018] 4 is a perspective view of metal plate 1402 before being inserted into resin member 1401. First, the rigidity of camera body 1000 will be described with reference to FIG.

[0019] The metal plate 1402 has a first planar portion 1501 that is substantially perpendicular to the optical axis 1003, and a second planar portion 1502 that is bent from the first planar portion 1501 in the direction of the optical axis 1003 (+Z direction). The second planar portion 1502 is at least one plate-shaped portion that has a surface that is substantially perpendicular to the optical axis 1003. In the example shown in FIG. 4, the second planar portion 1502 is made up of a plurality of planar portions, including a planar portion A1503, a planar portion B1504, a planar portion C1505, and a planar portion D1506. The second planar portion 1502 is inserted into a mount portion 1403 of a resin member 1401 to which the lens mount 1002 is fixed. This can increase the rigidity of the mount portion 1403 in the housing 1008.

[0020] Moreover, the planar portion A1503, the planar portion B1504, the planar portion C1505, and the planar portion D1506 are arranged at approximately equal angles (approximately 90° intervals) in the circumferential direction centered on the optical axis 1003. This allows the rigidity of the housing 1008 to be maintained even if external forces are applied to the mount portion 1403 from various directions. The second planar portion 1502 may include at least one planar portion E1507. From the viewpoint of increasing the rigidity, the planar portions constituting the second planar portion 1502 may be arranged at approximately equal intervals, and are not limited to 90° intervals, and for example, six planar portions may be arranged at 60° intervals.

[0021] Furthermore, each of the second flat surfaces 1502 has at least one through hole 1508 formed therein, penetrating in a direction perpendicular to the optical axis 1003. When the metal plate 1402 is insert-molded into the resin member 1401, the resin fills the through hole 1508. This makes it possible to prevent the interface between the resin member 1401 and the metal plate 1402 from peeling off even when an external force is applied to the mount portion 1403, leading to improved rigidity.

[0022] The metal plate 1402 further has a third flat portion 1509 bent in the direction of the optical axis 1003 (-Z direction) from the first flat portion 1501. The tripod mount 1010 is fixed to the third flat portion 1509 with a screw. This makes it possible to increase the rigidity of the casing 1008 around the tripod mount 1010.

[0023] In this way, by increasing the rigidity of the housing 1008, deformation of the housing 1008 due to external forces can be suppressed, and changes in the flange back can be suppressed, thereby improving reliability.

[0024] Next, a description will be given of the heat dissipation properties of the camera body 1000. The control board 1006 is fixed to abutment portion A1510 of the metal plate 1402. The imaging unit 1004 is fixed to abutment portion B1511 of the metal plate 1402. This allows heat generated in the control board 1006 and imaging unit 1004 when the camera body 1000 is driven to be efficiently dissipated to the metal plate 1402.

[0025] At least one of the second flat surfaces 1502 of the metal plate 1402 is provided with an abutment portion C1512, and the lens mount 1002 abuts against the abutment portion C1512. The lens biasing spring 1009 abuts against an abutment portion D1513 of the metal plate 1402. As a result, heat from the metal plate 1402 is transferred to the lens mount 1002 and the lens biasing spring 1009, and is dissipated to the attached photographing lens 1001 via the lens mount 1002.

[0026] Furthermore, at least a part of the first flat surface portion 1501 of the metal plate 1402 faces the exterior cover 1007 between the first grip portion 1301 and the lens mount 1002 in the radial direction centered on the optical axis 1003. For example, the first flat surface portion 1501 faces a portion corresponding to the base (bottom) of the first grip portion 1301 on the +X side. This allows the heat of the metal plate 1402 to be efficiently dissipated to the exterior cover 1007. Furthermore, as described above, the tripod mount 1010 is fixed to the third flat surface portion 1509 of the metal plate 1402, and therefore the heat of the metal plate 1402 is also dissipated to the tripod mount 1010.

[0027] In this way, heat generated in the control board 1006 and imaging unit 1004 is dissipated through the metal plate 1402 to the lens mount 1002, lens biasing spring 1009, photographing lens 1001, exterior cover 1007, and tripod mount 1010. Note that in the exterior cover 1007, heat generated in the camera body 1000 is dissipated to a portion that avoids the first grip portion 1301, so there is little risk of the heat dissipation portion being covered by the photographer's hand when taking pictures with the camera.

[0028] Incidentally, among conventional cameras equipped with a microphone, there is known one that holds the microphone with an elastic member so that the microphone does not directly touch the exterior cover or the pressing member. In this camera, the vibration of the driving sound of the camera body or the lens is suppressed from being directly transmitted to the microphone through the exterior cover or the pressing member, and the vibration is prevented from being captured as noise sound. For example, a conventional camera has been disclosed in which all the openings except for the openings corresponding to the sound holes of the condenser microphone are covered with an elastic member.

[0029] In recent years, there are cameras equipped with a reference microphone for noise cancellation. In such cameras, the microphone for voice capture and the reference microphone are mounted on the same board and held and fixed by the same component so that the reference microphone captures voice with the same characteristics as the microphone for voice capture. However, in such cameras, it is difficult to form an elastic member that covers the board and multiple microphones as in the past.

[0030] In addition, when the board on which the audio capture microphone and the reference microphone are mounted is equipped with both left and right audio capture microphones to capture stereo audio, the board is often placed on the top surface in the center in the left-right direction of the camera. However, if the camera has a built-in strobe in the center in the left-right direction, the microphones and elastic members are placed deep downward, which can cause problems such as reduced ease of assembly.

[0031] Hereinafter, the holding structure of the built-in microphone will be described with reference to FIGS.

[0032] FIG. 5(a) is an XY cross-sectional view of the camera body 1000 as viewed from the front. The camera body 1000 has three built-in microphones: microphone L 2021, microphone R 2022, and reference microphone 2023. These three built-in microphones are mounted on a flexible substrate 2030. In order from the -X side, microphone L 2021, reference microphone 2023, and microphone R 2022 are arranged in a row. The microphone L 2021 on the left side and microphone R 2022 on the right side are built-in microphones for acquiring stereo sound. The reference microphone 2023 is a built-in microphone for noise cancellation. Each built-in microphone has a microphone sound hole 2024. FIG. 5(a) shows a cross section passing through the microphone sound hole 2024 of the built-in microphone.

[0033] An opening 2031 is formed in the flexible substrate 2030 in correspondence with the position of the microphone sound hole 2024, and sound is acquired through this opening 2031. The first sound hole 2011 in the exterior cover 1007 is formed above the microphone L2021 and the microphone R2022. A second sound hole 2043 is formed in the first elastic portion 2041 (described later) in correspondence with the opening 2031 of the flexible substrate 2030 corresponding to the microphone sound hole 2024 of the microphone L2021 and the microphone R2022. The two second sound holes 2043 correspond to the two first sound holes 2011.

[0034] On the other hand, the reference microphone 2023 needs to capture only sounds transmitted inside the camera body 1000, such as the driving sounds of the camera body 1000 and the lens. Therefore, above the reference microphone 2023, no sound hole corresponding to the first sound hole 2011 is provided in the exterior cover 1007.

[0035] A unit 2060 is disposed mainly below the exterior cover 1007. The unit 2060 will be described with reference to FIGS.

[0036] Fig. 5(b) is a YZ cross-sectional view of the camera body 1000 as viewed from the +X side. Fig. 5(b) shows a cross-section passing through the reference microphone 2023. Figs. 6(a) and 6(b) are a perspective view and an exploded perspective view of the unit 2060, respectively.

[0037] As shown in FIGS. 6(a) and 6(b), the unit 2060 is a unit formed by assembling a holding member 2050, an elastic body 2040, a left microphone 2021, a right microphone 2022, a reference microphone 2023, and a flexible substrate 2030.

[0038] The elastic body 2040 is integrally formed of a first elastic portion 2041, a second elastic portion 2042, and two connecting portions 2045. One end portion of the first elastic portion 2041 and the second elastic portion 2042 are connected to each other by the two connecting portions 2045. The elastic body 2040 has a U-shaped cross section when viewed from the X direction, and the first elastic portion 2041 and the second elastic portion 2042 face each other with a gap therebetween.

[0039] The flexible substrate 2030 on which the built-in microphone is mounted is inserted into the gap between the first elastic portion 2041 and the second elastic portion 2042 from the side (-Z side) where the first elastic portion 2041 and the second elastic portion 2042 are not connected.

[0040] The holding member 2050 is fixed to the exterior cover 1007 with screws (not shown) so as to compress the first elastic part 2041, the flexible substrate 2030 on which the built-in microphone is mounted, and the second elastic part 2042 in the thickness direction (Y direction). Therefore, the first elastic part 2041, the flexible substrate 2030, and the second elastic part 2042 are pressed and held between the exterior cover 1007 and the holding member 2050. Therefore, as shown in FIG. 5(a), the exterior cover 1007, the first elastic part 2041, the flexible substrate 2030, the second elastic part 2042, and the holding member 2050 are positioned in this order from the +Y side between the adjacent built-in microphones.

[0041] 5(a), the flexible substrate 2030 and the first elastic portion 2041, and the first elastic portion 2041 and the exterior cover 1007 are tightly attached with no gaps due to pressure contact. Therefore, when sound is transmitted from the first sound hole 2011 of the exterior cover 1007 through the second sound hole 2043 to the microphone sound hole 2024, the driving sound of the camera body 1000 and the lens is prevented from being mixed in between the flexible substrate 2030 and the exterior cover 1007.

[0042] Furthermore, between exterior cover 1007 and holding member 2050 in the Y direction, flexible substrate 2030 is in contact only with first elastic portion 2041 and second elastic portion 2042. Therefore, driving sounds of camera body 1000 and lens transmitted as vibrations to exterior cover 1007 and holding member 2050 are less likely to be transmitted directly to flexible substrate 2030, and noise audio is suppressed from being picked up by the built-in microphone.

[0043] As shown in FIG. 5(b), the built-in microphone is disposed between the built-in flash 2001 and the accessory shoe 2002 in the Z direction. The exterior cover 1007 has a vertical wall 2012 that is a wall portion interposed between the built-in microphone and the accessory shoe 2002 in the Z direction. The exterior cover 1007 also has a vertical wall 2013 that is interposed between the built-in microphone and the built-in flash 2001 in the Z direction. In order to reduce the size of the camera body 1000, it is necessary to reduce the distance between the built-in flash 2001 and the accessory shoe 2002. If the distance between them is reduced, the interval between the vertical walls 2012 and 2013 of the exterior cover 1007 becomes shorter, and the space for disposing the built-in microphone becomes narrower in the Z direction and deeper in the -Y direction.

[0044] In this case, some problems arise. For example, the side of the flexible substrate 2030 on which the built-in microphone is not mounted extends in the extension direction and is connected to the audio control substrate (not shown). Here, if the space for arranging the built-in microphone is narrow and deep, it is necessary to bend the flexible substrate 2030 at a right angle at the portion P shown in Fig. 5(b). Therefore, there is a problem that the flexible substrate 2030 comes into strong contact with the vertical wall 2012 of the exterior cover 1007, and the driving sound of the camera body 1000 and the lens is easily transmitted to the built-in microphone.

[0045] On the other hand, if the built-in microphone were placed below the vertical wall 2012, a larger installation space could be secured. However, this would require deepening the first sound hole 2011 (FIG. 5) in the exterior cover 1007 by the distance the built-in microphone was lowered. In that case, another problem would occur, such as wind noise being mixed into the sound picked up by the built-in microphone, so lowering the position of the built-in microphone is not a good idea.

[0046] Therefore, in this embodiment, an extension portion 2044 extending from the first elastic portion 2041 is provided, and the extension portion 2044 is inserted between the vertical wall 2012 and the flexible substrate 2030. This prevents the vibration of the vertical wall 2012 from being directly transmitted to the flexible substrate 2030.

[0047] Furthermore, if the space for arranging the built-in microphone is narrow and deep, there is a problem that it becomes difficult to assemble the built-in microphone, first elastic part 2041, and second elastic part 2042 to exterior cover 1007. Therefore, in this embodiment, as described above, the built-in microphone, flexible substrate 2030, first elastic part 2041, second elastic part 2042, and holding member 2050 are integrated into one unit.

[0048] By unitizing these parts, the worker does not need to hold the built-in microphone or elastic body 2040 and insert them into a narrow, deep space, and can install the built-in microphone into exterior cover 1007 simply by holding holding member 2050.

[0049] 6(b), the holding member 2050 has a cylindrical protrusion 2051. The second elastic portion 2042 is provided with a hole 2046 having an inner diameter smaller than the outer diameter of the protrusion 2051. The protrusion 2051 of the holding member is inserted into the hole 2046 of the second elastic portion 2042 and lightly press-fitted, whereby the second elastic portion 2042 is positioned and held by the holding member 2050.

[0050] The second elastic portion 2042 is provided with four engagement portions 2047 (only two on the +Z side are shown). The flexible substrate 2030 is provided with protrusions 2032 and corners 2033 (some not shown) corresponding to the respective engagement portions 2047. The engagement portions 2047 engage with the corresponding protrusions 2032 and corners 2033, thereby positioning and holding the flexible substrate 2030 relative to the second elastic portion 2042. As described above, the holding member 2050 is positioned and held relative to the exterior cover 1007. Therefore, the amount of positional deviation of the first sound hole 2011 relative to the microphone sound hole 2024 is kept below a certain value, and deterioration in the sound quality of the captured sound is suppressed.

[0051] Fig. 7(a) is a YZ cross-sectional view of the elastic body 2040 into which the flexible substrate 2030 is inserted. Fig. 7(b) is a YZ cross-sectional view of the unit 2060. Figs. 7(a) and (b) show a cross section passing through the microphone L2021. Fig. 7(a) shows a state in which the elastic body 2040 is not held by the holding member 2050, and Fig. 7(b) shows a state in which the elastic body 2040 is held by the holding member 2050.

[0052] When the first elastic portion 2041 and the second elastic portion 2042 are molded integrally, the mold needs to have a certain thickness to ensure the strength of the mold. In the elastic body 2040 before being incorporated into the exterior cover 1007, the distance between the first elastic portion 2041 and the second elastic portion 2042 is equal to or greater than the thickness of the flexible substrate 2030. Therefore, there is a gap between the flexible substrate 2030 and the first elastic portion 2041.

[0053] Only when the elastic body 2040 is assembled to the exterior cover 1007 and pressed against the holding member 2050, the flexible substrate 2030 and the first elastic portion 2041 come into close contact as shown in Fig. 5(a). However, since the first elastic portion 2041 is connected to the second elastic portion 2042 only at the connecting portion 2045, there is a problem that the position of the first elastic portion 2041 is shifted when the unit 2060 is assembled into the exterior cover 1007, making it difficult to ensure positional accuracy. If the position of the second sound hole 2043 (Fig. 5(a)) of the first elastic portion 2041 is shifted relative to the microphone sound hole 2024 or the first sound hole 2011, this leads to a deterioration in sound quality.

[0054] In this embodiment, therefore, the unit 2060 incorporates a configuration that can guarantee the positional accuracy of the first elastic portion 2041 even when the unit 2060 is assembled into the exterior cover 1007 .

[0055] 7(a) and (b), the first elastic portion 2041 and the second elastic portion 2042 have their +Z side ends connected to each other by a connecting portion 2045. Therefore, one end Q1 of the first elastic portion 2041 is connected to the connecting portion 2045, and the other end Q2 of the first elastic portion 2041 is separated from the second elastic portion 2042.

[0056] As shown in FIG. 7(b), in a state where the elastic body 2040 is held by the holding member 2050 and before the unit 2060 is assembled to the exterior cover 1007, the gap between the first elastic portion 2041 and the second elastic portion 2042 varies depending on the position in the Z direction. The above gap is smaller on the -Z side. For example, the above gap is smaller at the second position x2 on the side farther from the connecting portion 2045 in the Z direction than at the first position x1 on the side closer to the connecting portion 2045. This is realized by the other end Q2 of the first elastic portion 2041 engaging with the engaging portion 2052, which is an engaging hook provided on the holding member 2050.

[0057] That is, the engaging portion 2052 holds the other end Q2 of the first elastic portion 2041, which is the side that abuts against the exterior cover 1007 and is farther from the connecting portion 2045. The area close to the other end Q2 is in contact with the flexible substrate 2030. This narrows the gap in the -Z direction. This state is maintained in the unit 2060 before it is attached to the exterior cover 1007.

[0058] With this holding configuration, when the unit 2060 is assembled in the +Y direction relative to the exterior cover 1007, the first elastic portion 2041 first comes into contact with the exterior cover 1007 from one end Q1. Since the one end Q1 is integrated with the second elastic portion 2042 by the connecting portion 2045, positional accuracy equivalent to that of the second elastic portion 2042 is guaranteed.

[0059] The portion of elastic body 2040 that comes into contact with exterior cover 1007 adheres closely to exterior cover 1007 due to frictional force, and is therefore unlikely to shift thereafter. Therefore, the portion of elastic body 2040 that comes into contact with exterior cover 1007 is fixed to exterior cover 1007 with guaranteed positional accuracy.

[0060] As the elastic body 2040 is further pressed against the exterior cover 1007, the area of ​​the first elastic part 2041 that comes into contact with the exterior cover 1007 expands. However, since the positional accuracy is guaranteed at the initial contact, the positional accuracy of subsequent contact areas is also guaranteed following the initial contact area, and finally, the state transitions to the state shown in Fig. 5(a) with the overall positional accuracy of the first elastic part 2041 guaranteed. Therefore, the amount of positional deviation of the second sound hole 2043 relative to the microphone sound hole 2024 and the first sound hole 2011 can be guaranteed to be equal to or less than a certain value, and deterioration in the sound quality of the sound picked up by the built-in microphone can be suppressed.

[0061] When the unit 2060 is assembled into the exterior cover 1007, the extension portion 2044 contacts the exterior cover 1007 via the flexible substrate 2030 before the elastic body 2040 contacts the exterior cover 1007. Therefore, if the reaction force generated when the extension portion 2044 deforms is too large, the connection portion 2045 deforms, and there is a risk that the positional accuracy may not be guaranteed when the first elastic portion 2041 contacts the exterior cover 1007.

[0062] Therefore, the thickness of the extension portion 2044 is thinner than both the thickness of the first elastic portion 2041 and the thickness of the connecting portion 2045, and the width of the extension portion 2044 in the X direction is smaller than the sum of the widths of the connecting portion 2045 (width L+M). With this configuration, the reaction force when the extension portion 2044 is deformed is less likely to affect the position of the first elastic portion 2041.

[0063] In this manner, in a configuration having multiple built-in microphones mounted on the same flexible substrate 2030, it is possible to suppress the propagation of vibrations such as drive noise when acquiring audio, and also to improve ease of assembly.

[0064] Incidentally, with the expansion of SNS (Social Networking Services) and streaming distribution services, interchangeable lens cameras are increasingly being equipped with wireless communication modules as standard in order to perform wireless communication with external devices. In order to improve communication characteristics and to avoid the effects of shielding materials such as metals inside the camera, the wireless communication module is generally placed near the inside of the exterior.

[0065] For example, in conventional cameras, the wireless communication module is placed inside the grip section, reducing the impact on the external shape of the camera while ensuring communication characteristics. However, in conventional cameras, when the photographer holds the grip section, the wireless communication module is covered by the hand, which impairs the communication characteristics. In addition, since the wireless communication module generates heat during communication, if the photographer performs wireless communication while holding the grip section, the photographer may feel uncomfortable depending on the heat temperature. Therefore, it was necessary to take measures to protect the photographer by adding a heat dissipation member such as a graphite sheet.

[0066] Fig. 8 is an exploded perspective view of the camera system in this embodiment. The appearance of the camera body 1000 shown in Fig. 8 is slightly different from that shown in Fig. 2, but the internal configuration is the same. For example, built-in microphones (microphone L 2021, microphone R 2022) are arranged below the first sound hole 2011.

[0067] As shown in FIG. 8, a wireless module 3001 is disposed within the camera body 1000. The wireless module 3001 is a wireless communication device for transmitting and receiving image data and the like to an external device via wireless communication. The wireless module 3001 also serves as an antenna for short-range wireless communication such as Bluetooth (registered trademark), and is capable of transmitting not only image data but also audio data to an external device. The wireless module 3001 is disposed near the inside of the exterior cover 1007 to ensure communication characteristics. The configuration described below is also applicable to the camera body 1000 having the exterior shape shown in FIG. 2.

[0068] Moreover, the wireless module 3001 is disposed on the opposite side of the first grip part 1301 with respect to the optical axis 1003 (with the optical axis 1003 in between). Moreover, the wireless module 3001 is disposed above (on the +Y side of) the optical axis 1003. An antenna surface 3001a of the wireless module 3001 is substantially perpendicular to the optical axis 1003. The antenna surface 3001a is adjacent to a front portion of the exterior cover 1007.

[0069] When the photographer holds the camera body 1000, the first grip part 1301 is covered by the photographer's hand. If the wireless module 3001 is inside the first grip part 1301, the communication characteristics of the wireless module 3001 are impaired by being covered by the hand. The camera body 1000 is of an interchangeable lens type, and when the photographer holds the first grip part 1301 with the right hand and the photographic lens 1001 with the left hand for shooting, the left hand covers the second grip part 3002. The wireless module 3001 is located on the opposite side of the first grip part 1301 with respect to the optical axis 1003, above the optical axis 1003, and above the second grip part 3002. Therefore, the photographer does not usually cover the wireless module 3001 with his / her hand, and the risk of impairing the communication characteristics is low.

[0070] Moreover, the wireless module 3001 generates heat when communicating with an external device. As described above, the wireless module 3001 is disposed near the inside of the exterior cover 1007 to ensure communication characteristics. If the wireless module 3001 generates heat and the photographer holds the exterior part closest to it for a long period of time, the photographer may feel uncomfortable depending on the heat temperature. However, by disposing the wireless module 3001 in a location that is unlikely to be covered by the photographer's hand, the photographer is prevented from feeling uncomfortable.

[0071] The built-in flash 2001 is disposed above the optical axis 1003 in the camera body 1000. Inside the built-in flash 2001, there are many components that act as obstructions to wireless communication, such as a xenon tube for emitting light, a reflector, and lead wires for power supply. However, by disposing the wireless module 3001 on the opposite side of the optical axis 1003 from the first grip portion 1301, it is possible to prevent the obstructions inside the built-in flash 2001 from affecting the wireless characteristics.

[0072] The camera body 1000 is also equipped with an external microphone terminal 3003 for connecting an external microphone. In addition to the built-in microphone, an external microphone connected to the external microphone terminal 3003 converts the sound during video capture into an audio signal using a MEMS microphone, a condenser microphone, or the like, and the audio signal is stored on a recording medium. Since audio signals are basically analog signals, if wireless communication is performed during video capture, the wireless communication signal may cause crosstalk with the audio signal, which may be stored on the recording medium as noise in the audio signal. To prevent this, it is effective to physically separate the audio signal and the wireless signal.

[0073] Therefore, in the camera body 1000, the wireless module 3001 is located at a predetermined distance (approximately 20 mm) or more from the built-in microphone and the external microphone terminal 3003 to suppress the risk of crosstalk between the wireless communication signal and the audio signal. As a result, noise in the audio signal is suppressed even when wireless communication is performed during video shooting. From the viewpoint of maintaining communication characteristics, even if the predetermined distance cannot be ensured, it is desirable to place the wireless module 3001 at a position that does not overlap with either the built-in microphone or the external microphone terminal 3003 when viewed from the optical axis direction.

[0074] In this way, the wireless module 3001 in the camera body 1000 is positioned taking into consideration the effects of the photographer's hand, the effects of obstructions inside the built-in flash 2001, and the effects on the audio signals of the built-in / external microphones. This makes it possible to improve the characteristics of wireless communication with external devices even when the photographer is holding the grip section. In particular, because the wireless module 3001 is positioned in a position that is not covered by the photographer's hand, there is little risk of the wireless module 3001 causing discomfort to the photographer when it generates heat.

[0075] According to this embodiment, the camera body 1000 has a housing 1008 in which a metal plate 1402 is inserted into a resin member 1401. Such insert molding reduces costs and improves heat dissipation. The metal plate 1402 has a first flat portion 1501 that is substantially perpendicular to the optical axis 1003, and at least one second flat portion 1502 that is bent from the first flat portion 1501 in the optical axis direction (FIG. 4). The second flat portion 1502 is inserted into the mount portion 1403. This improves the rigidity of the housing 1008 and suppresses deformation, thereby improving the reliability of the flange back. Therefore, it is possible to improve heat dissipation while suppressing costs and ensuring the reliability of the flange back.

[0076] In addition, since the control board 1006 is fixed to the metal plate 1402, heat generated in the control board 1006 is efficiently dissipated to the metal plate 1402. In addition, since the first flat surface portion 1501 of the metal plate 1402 faces the exterior cover 1007 between the first grip portion 1301 and the lens mount 1002, heat from the metal plate 1402 is efficiently dissipated to the exterior cover 1007.

[0077] In addition, since the tripod mount 1010 is fixed to the third flat surface portion 1509 of the metal plate 1402, heat from the metal plate 1402 is dissipated to the tripod mount 1010, and the rigidity of the housing 1008 is increased. In addition, the lens mount 1002 abuts against abutment portion C1512 of the second flat surface portion 1502, and the lens biasing spring 1009 abuts against abutment portion D1513 of the metal plate 1402. As a result, heat from the metal plate 1402 is dissipated from the attached photographing lens 1001 via the lens biasing spring 1009 and the lens mount 1002.

[0078] In addition, since two or more second flat surfaces 1502 are arranged at approximately equal angles in the circumferential direction centered on optical axis 1003, housing 1008 exhibits high rigidity against external forces from all directions applied to mount portion 1403. Furthermore, resin fills through holes 1508 formed in second flat surfaces 1502, suppressing interfacial peeling between resin member 1401 and metal plate 1402, and increasing the rigidity of housing 1008.

[0079] Moreover, the gap between the first elastic portion 2041 and the second elastic portion 2042 in the state in which the elastic body 2040 is held by the holding member 2050 and before the unit 2060 is attached to the exterior cover 1007 becomes smaller toward the -Z side (FIG. 7(b)). That is, the gap at the second position x2 on the side farther from the connecting portion 2045 is smaller than the gap at the first position x1 on the side closer to the connecting portion 2045. This makes it possible to suppress misalignment of the second sound hole 2043 with respect to the microphone sound hole 2024 and the first sound hole 2011.

[0080] In addition, the extension portion 2044 extending from the first elastic portion 2041 is inserted between the vertical wall 2012 of the exterior cover 1007 and the flexible substrate 2030 (FIG. 5(b)). This makes it possible to suppress the vibration of the exterior cover 1007 from being directly transmitted to the flexible substrate 2030.

[0081] Furthermore, the thickness of the extension portion 2044 is thinner than both the thickness of the first elastic portion 2041 and the thickness of the connecting portion 2045, and the width of the extension portion 2044 is smaller than the width (L+M) of the connecting portion 2045. This makes it difficult for the reaction force generated when the extension portion 2044 deforms to affect the position of the first elastic portion 2041. In this respect as well, it is possible to suppress misalignment of the sound hole.

[0082] Moreover, the wireless module 3001 is disposed on the opposite side of the optical axis 1003 to the first grip part 1301 and above the optical axis 1003 (FIG. 8). Moreover, the wireless module 3001 is located above the second grip part 3002. This makes it possible to maintain the communication characteristics of the wireless module 3001 and to make it difficult for heat from the wireless module 3001 to be transmitted to the photographer holding the first grip part 1301 or the second grip part 3002.

[0083] In the present embodiment, the term "approximately" does not mean to exclude "completely." For example, "approximately perpendicular," "approximately orthogonal," and "approximately uniform" respectively include "completely perpendicular," "orthogonal," and "approximately uniform."

[0084] The present invention has been described above in detail based on preferred embodiments thereof, but the present invention is not limited to these specific embodiments, and various forms that do not deviate from the gist of the present invention are also included in the present invention. [Explanation of symbols]

[0085] 1000 Camera body 1002 Lens mount 1008 Case 1401 Resin parts 1402 Metal plate 1403 Mounting section 1501 First flat section 1502 Second flat section

Claims

1. A lens mount that can be used to attach a lens unit; a housing in which a metal member is inserted into a resin member having a mount portion to which the lens mount is attached, the metal member has a first planar portion substantially perpendicular to an optical axis of the lens unit, and at least one second planar portion bent from the first planar portion in the optical axis direction, The imaging device, wherein the second planar portion is inserted into the mount portion.

2. 2. The imaging device according to claim 1, further comprising a control board fixed to the metal member.

3. an exterior member having a first grip portion to be held by a photographer; 3. The imaging device according to claim 1, wherein at least a portion of the first planar portion faces the exterior member between the mount portion and the first grip portion in a radial direction centered on the optical axis.

4. the metal member further has a third planar portion bent in an optical axis direction from the first planar portion, 4. The imaging device according to claim 1, wherein a tripod mount is fixed to the third flat surface portion.

5. 5. The imaging device according to claim 1, further comprising an imaging unit fixed to the metal member.

6. 6. The image pickup device according to claim 1, wherein at least one of the second flat surfaces is in contact with the lens mount.

7. a lens biasing spring for drawing and fixing the lens unit into the lens mount; 7. The imaging device according to claim 1, wherein the lens biasing spring abuts against the metal member.

8. 8. The imaging device according to claim 1, wherein two or more of the second flat surfaces are arranged at substantially equal angles in a circumferential direction about the optical axis.

9. A through hole is formed in the second plane portion, 9. The imaging device according to claim 1, wherein a part of the resin member is embedded in the through hole.

10. A holding member; A flexible substrate; A built-in microphone mounted on the flexible substrate; an elastic body having a U-shaped cross section, the elastic body including a first elastic portion having a first sound hole corresponding to the built-in microphone, a second elastic portion, and a connecting portion connecting ends of the first elastic portion and the second elastic portion; an exterior member having a second sound hole corresponding to the first sound hole, a unit is formed by holding the first elastic portion and the second elastic portion in a state in which the built-in microphone mounted on the flexible substrate is inserted into a gap between the first elastic portion and the second elastic portion by the holding member; by assembling the unit to the exterior member from the side of the first elastic portion, the flexible board, the built-in microphone, and the elastic body are sandwiched between the holding member and the exterior member, The imaging device according to claim 1, characterized in that, before the unit is assembled to the exterior member, the gap between the first elastic portion and the second elastic portion is smaller at a second position on a side farther from the connecting portion of the elastic body than at a first position on a side closer to the connecting portion of the elastic body.

11. The holding member has an engagement portion, The imaging device of claim 10, characterized in that in the unit, the engagement portion of the holding member holds the end portion of the first elastic portion on the side that abuts against the exterior member and is farther from the connecting portion, so that the gap at the second position is smaller than the gap at the first position.

12. An accessory shoe is provided. the exterior member has a wall portion interposed between the built-in microphone and the accessory shoe, 12. The imaging device according to claim 10, wherein an extension portion extending from the first elastic portion is inserted between the flexible substrate and the wall portion.

13. 13. The imaging device according to claim 12, wherein a thickness of the extension portion is thinner than both a thickness of the first elastic portion and a thickness of the connecting portion, and a width of the extension portion is smaller than a width of the connecting portion.

14. an exterior member having a first grip portion to be held by a photographer; A wireless module for performing wireless communication, The imaging device according to claim 1 , wherein the wireless module is disposed on an opposite side of the first grip portion with respect to the optical axis and above the optical axis.

15. The exterior member has a second grip portion on the opposite side to the first grip portion in the left-right direction, The imaging device according to claim 14 , wherein the wireless module is located above the second grip portion.

16. With built-in microphone, A microphone terminal for connecting an external microphone; 16. The imaging device according to claim 14, wherein the wireless module is disposed at a position not overlapping either the built-in microphone or the microphone terminal when viewed from the optical axis direction.

Images