Lens device and imaging device

Abstract

To provide, for example, a lens device advantageous for replacement of a mount part including an electrical contact.SOLUTION: A lens device has a main body part that accommodates an optical system, and a mount part that is removably mounted on a camera device, and the main body part and the mount part are removably coupled to each other. The mount part has a first electrical contact part that is in contact with an electrical contact part of the camera device, and a second electrical contact part that is in electrical conduction with the first electrical contact part. The main body part has an electrical substrate, and a third electrical contact part that is in electrical conduction with the electrical substrate. The main body part and the mount part are coupled to each other, and thereby the second electrical contact part and the third electrical contact part are brought into contact with each other.SELECTED DRAWING: Figure 11

Description

Technical Field

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[0001] The present invention relates to a lens device and an imaging device.

Background Art

[0002] In a lens device mounted on a camera via a mount portion, power supply from the camera, communication of control information from the camera to the lens, and state information from the lens to the camera are performed via electrical contacts provided in the mount portion. In the lens device, an electrical substrate having a control unit, a storage unit, etc. and the electrical contacts of the mount portion are connected by a conductive cable. On the other hand, there are many types of mount portions of cameras, and there is a lens device that can be mounted on a plurality of types of cameras by replacing the mount portion of the lens. Patent Document 1 discloses a lens device that connects a connector of a wiring from an electrical contact provided in a mount portion and a connector of a wiring from an electrical substrate portion to each other in an intermediate portion (wiring accommodation portion).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the lens device disclosed in Patent Document 1, the operation of replacing the mount requires the disconnection of the connector connection in the wiring accommodation portion and the removal of the mount portion in the lens device to be performed in order, which is complicated. [[ID=XXX]]The present invention aims to provide, for example, a lens device that is advantageous for replacing a mount portion provided with electrical contacts.

Means for Solving the Problems

[0005] To achieve the above objective, the lens device of the present invention comprises a main body containing an optical system and a mount portion that is detachably attached to a camera device, wherein the main body and the mount portion are detachably coupled to each other, the mount portion having a first electrical contact portion that contacts an electrical contact portion of the camera device and a second electrical contact portion that is electrically connected to the first electrical contact portion, the main body having an electrical substrate and a third electrical contact portion that is electrically connected to the electrical substrate, and the second electrical contact portion and the third electrical contact portion come into contact when the main body and the mount portion are coupled to each other. The mounting portion is interchangeable with a second mounting portion having a fourth electrical contact portion that contacts an electrical contact portion of a camera device other than the camera device, and a fifth electrical contact portion that is electrically connected to the fourth electrical contact portion. The main body portion has a sixth electrical contact portion that is electrically connected to the electrical circuit board, and the main body portion and the second mounting portion are coupled to each other so that the fifth electrical contact portion and the sixth electrical contact portion make contact. It is characterized by doing so. [Effects of the Invention]

[0006] According to the present invention, for example, it is possible to provide a lens device that is advantageous for replacing the mount portion equipped with electrical contacts. [Brief explanation of the drawing]

[0007] [Figure 1] Front view of the lens device on the image plane side of Example 1 [Figure 2] Cross-sectional view of the lens device along line A-A' in Figure 1. [Figure 3] Cross-sectional view of the lens device along the line B-B' in Figure 1. [Figure 4] Exploded perspective view of the mount section of the lens device of Example 1 [Figure 5] Front view of the subject-side mounting unit of the first mount type. [Figure 6] Front view of the image plane side of the second type of mount unit. [Figure 7] Front view of the subject-side mounting unit of the second mount type. [Figure 8] Image plane side front view of the lens device of Example 2 [Figure 9] Cross-sectional view of the lens device along the C-C' line in Figure 8. [Figure 10] Cross-sectional view of the lens device along the line D-D' in Figure 8. [Figure 11] Exploded perspective view of the mount portion of the lens device of Example 2 [Figure 12] Front view of the image plane side of the mount unit of the second mount type [Figure 13] Front view of the subject side of the mount unit of the second mount type [Figure 14] Conceptual diagram of an imaging device having the lens device of the present invention

Mode for Carrying Out the Invention

[0008] Hereinafter, preferred embodiments of the present invention will be described in detail based on the examples illustrated in FIGS. 1 to 13.

Example

[0009] FIG. 1 is a front view of the state of the first mount type of the lens device 1 to which the present invention is applied, as viewed from the image plane side. FIG. 2 is a side cross-sectional view of the mount portion corresponding to the A-A cross-section shown in FIG. 1, and FIG. 3 is a side cross-sectional view of the mount portion corresponding to the B-B cross-section shown in FIG. 1. In FIGS. 2 and 3, the left side in the figure indicates the subject side, and the right side indicates the image plane side. FIG. 4 shows an exploded perspective view of the mount portion of the lens device 1.

[0010] The lens device 1 is an interchangeable lens device that can be attached to and detached from the camera body, and is used by being connected to a mount on the camera body side (not shown) by a mount unit 3 (mount portion). The mount unit 3 is fixed to the first fixed cylinder 4 by a plurality of screws 5 that are mount fixing members. The engaging portion 4c of the first fixed cylinder 4 and the outer peripheral portion 3a of the mount unit 3 are engaged, and when the mount unit 3 is fixed to the first fixed cylinder 4, the coaxiality of the two is maintained.

[0011] The second fixing cylinder 6 is fixed to the subject side of the first fixing cylinder 4 by a screw (not shown). The play in the engagement part between the first fixing cylinder 4 and the second fixing cylinder 6 is sufficiently small, and when the first fixing cylinder 4 and the second fixing cylinder 6 are fixed by the screw, their coaxiality is maintained. The lens barrel 7 and the electrical component mounting board (electrical board) 8 are fixed to the second fixing cylinder 6. Multiple optical elements are held in place by multiple retaining rings on the lens barrel 7. Other optical systems and operating members (not shown) are connected to the second fixing cylinder 6, and the entire part on the subject side of the mount unit 3, including the first fixing cylinder 4 and the second fixing cylinder 6, will be referred to as the lens body (main body) 2.

[0012] The mount unit 3 consists of a mount ring 9 having a bayonet claw that engages with the camera mount, a connecting ring 10, an electrical contact unit 11, an intermediate contact substrate 12, and screws connecting them. As shown in Figure 1, the electrical contact unit 11 is fixed to the upper part of the image plane side surface of the mount ring 9. The electrical contact unit 11 consists of a plurality of metal electrical contact members 11a and a resin contact block 11b into which these electrical contact members 11a are insert-molded. When the lens device 1 is connected to the camera body and used, the electrical contact members 11a and the camera contacts (not shown) can be connected so that power is supplied and communication takes place through this electrical contact unit 11.

[0013] FIG. 5 is a front view of the mount unit 3 from the subject side. As shown in FIG. 5, an intermediate contact substrate 12 fixed near the upper part of the connecting ring 10 has a plurality of conductive patterns 12a mounted on the surface on the subject side. Also, the intermediate contact substrate 12 and the electrical contact unit 11 are connected by a conductive cable 13 such that each of these conductive patterns 12a is electrically connected to each electrical contact member 11a of the aforementioned electrical contact unit 11. A recess 10a for accommodating the conductive cable 13 connecting the intermediate contact substrate 12 and the electrical contact unit 11 is provided on the inner peripheral surface of the connecting ring 10. Further, on the mounting surface to the lens body, there is a groove 10f that engages with a pin 20 provided to protrude from the mounting surface (contact surface) 4b of the first fixing cylinder 4, for accurately regulating the relative angular relationship around the optical axis between the lens body 2 and the mount unit 3.

[0014] On the other hand, on the image plane side surface of the lens body 2 side, at a position facing the intermediate contact substrate 12 of the mount unit 3, as shown in FIG. 4, the first fixing cylinder 4 has a notch 4a, and an intermediate contact unit 14 mounted on the electrical component mounting substrate 8 is exposed. The intermediate contact unit 14 is a unit that integrates electrical contact members 14a, which are a plurality of metal pin-shaped contact contacts, into one mounting component with a resin member. Each pin-shaped electrical contact member 14a has a structure in which the tip can expand and contract within a range of a predetermined stroke while maintaining electrical conductivity as a contact, with a biasing force acting in the optical axis direction in a state of being coupled to the mount unit 3 by a biasing structure of an internal coil spring (not shown). Each electrical contact member 14a of the intermediate contact unit 14 has a positional relationship such that it abuts against the conductive pattern 12a of the intermediate contact substrate 12.

[0015] FIG. 6 is a front view of a mount unit 103 of a second mount type, seen from the image plane side, where the positions of the electrical contacts with the camera body are different from those of the first mount type, and FIG. 7 is a front view seen from the subject side.

[0016] The mount unit 103 consists of a mount ring 109 having a bayonet claw that engages with the camera mount, a connecting ring 110, an electrical contact unit 11, an intermediate contact substrate 12, and screws connecting them. As shown in Figure 6, the electrical contact unit 11 is fixed to the left of the image plane side surface of the mount ring 109. The intermediate contact substrate 12, fixed near the top of the connecting ring 110, has multiple conductive patterns 12a mounted on its subject-side surface. The intermediate contact substrate 12 and the electrical contact unit 11 are connected by a conductive cable 113 so that each of these conductive patterns 12a is electrically connected to each electrical contact member 11a of the aforementioned electrical contact unit 11. The inner circumferential surface of the connecting ring 110 is provided with a recess 110a for housing the conductive cable connecting the intermediate contact substrate 12 and the electrical contact unit 11. Furthermore, the mounting surface to the lens body is provided with a groove 110f that engages with a pin 20 protruding from the mounting surface 4b of the first fixed cylinder 4, and precisely regulates the relative angular relationship between the lens body 2 and the mount unit 103 around the optical axis.

[0017] The procedure for replacing the mount in the lens device configured as described above is explained below. Here, we consider selectively switching from a first mount type for attachment to the first camera device to a second mount type for attachment to the second camera device.

[0018] First, remove all the screws 5 that secure the first mount type mount unit 3 to the lens body 2, and then detach the mount unit 3 from the lens body 2 in the direction of the optical axis. When the mount unit 3 is fixed, the electrical connection between the intermediate contact unit 14 and the intermediate contact substrate 12 is in a state where the electrical contact member 14a of the intermediate contact unit 14 remains in contact with the conductive pattern 12a of the intermediate contact substrate 12 due to the biasing force of the coil spring mentioned above. However, since the electrical contact member 14a cannot extend beyond a predetermined stroke, when the mount unit 3 is moved away from the lens body 2 in the direction of the optical axis, the electrical connection will not make contact from a distance greater than the extension stroke of the potential contact member 14a. In other words, the mount unit 3 can be completely removed from the lens body 2.

[0019] Next, when the second mount type mount unit 103 is brought closer to the first fixed cylinder 4 of the lens body 2 from the image plane side in the direction of the optical axis, the electrical contact member 14a of the intermediate contact unit 14 first comes into contact with the conductive pattern 12a of the intermediate contact substrate 12. From that state, when the mount unit 103 is pushed further toward the subject, the tip of the electrical contact member 14a retracts against the biasing force of the coil spring mentioned above, and the mount unit 103 comes into contact with the mounting surface 4b of the first fixed cylinder 4. With the mount unit 103 in contact with the mounting surface 4b of the first fixed cylinder 4, the screw 5 that was removed earlier is tightened again, and the mount replacement work is completed. When switching from the second mount type to the first mount type, perform the above steps in the reverse order.

[0020] In the lens device of this embodiment, configured as described above, the dividing surface connecting the lens body 2 and the mount units 3 and 103 is close to the dividing surface of the intermediate contact unit 14 and the intermediate contact substrate 12, and the electrical connection method is by contact between conductors with biasing force. For this reason, it is not necessary to remove the mount units 3 and 103 from the lens body 2 and to disconnect the electrical connections independently and sequentially, and the electrical connections can be disconnected simultaneously with the single operation of removing the mount units 3 and 103. Similarly, for the mounting operation, it is not necessary to prepare independently for the operation of attaching the mount units 3 and 103 to the lens body 2 and for connecting the electrical connections, and the electrical connections can be connected simultaneously with the single operation of attaching the mount units 3 and 103.

[0021] Furthermore, the lens body 2 and the mount units 3 and 103 are secured only by screws 5. In all cases, the mount replacement process does not involve disassembling the mount unit.

[0022] Furthermore, since the electrical connection between the lens body 2 and the mount unit 3, 103 is made by contact between conductors with biasing force, there is no risk of damaging the conductive cable at the electrical connection point, as in conventional technology.

[0023] As described above, the lens device of this embodiment allows for the easy replacement of the mount equipped with communication contacts with the camera body, and provides a lens device suitable for repeated replacement operations.

[0024] In this embodiment, the first and second mount types are located in separate regions that differ only in the phase of their positions around the optical axis where the electrical contacts to the camera device are located, and it is assumed that the communication content is the same. However, even in the case of mount types with different communication content, the present invention can be applied by providing a separate switch or the like.

[0025] Although the above embodiment was described as having two types of interchangeable mounts, the present invention is also applicable when supporting three or more interchangeable mount types.

[0026] In this embodiment, the electrical contact member 14a is configured to expand and contract in the optical axis direction by the biasing force of the coil spring, but the conductive pattern 12a of the intermediate contact substrate 12 may be configured to expand and contract in the optical axis direction by the biasing member. [Examples]

[0027] Figure 8 is a front view from the image plane side of a second embodiment of a lens device to which the present invention is applied. Figure 9 is a side cross-sectional view of the mount portion corresponding to the C-C' section shown in Figure 8, and Figure 10 is a side cross-sectional view of the mount portion corresponding to the D-D' section shown in Figure 8. Figure 11 shows an exploded perspective view of the mount portion of the lens device 201. The same reference numerals as in Example 1 indicate the same components.

[0028] The following describes the differences in configuration from Example 1. The mount unit 203 is fixed to the first fixing cylinder 204 by a plurality of screws 5, which are mount fixing members. The mount unit 203 consists of a mount ring 209 having a bayonet claw that engages with the camera mount, a connecting ring 210, an electrical contact unit 11, an intermediate contact board 12, and screws connecting them. The intermediate contact board 12, which is fixed near the top of the connecting ring 210, has a plurality of conductive patterns 12a mounted on the surface facing the subject. The intermediate contact board 12 and the electrical contact unit 11 are connected by a conductive cable 13 so that each of these conductive patterns 12a is electrically connected to each electrical contact member 11a of the aforementioned electrical contact unit 11. The inner circumferential surface of the connecting ring 210 is provided with a recess 210a for accommodating the conductive cable 13 that connects the intermediate contact board 12 and the electrical contact unit 11. Furthermore, a recess 210b is provided near the bottom of the surface of the connecting ring 210 to which the intermediate contact board 12 is fixed.

[0029] Figure 12 is a front view of the second mount type mount unit (second mount section) 303, as seen from the image plane side, which differs from the first mount type in the position and number of electrical contacts with the camera body, and Figure 13 is a front view as seen from the subject side.

[0030] The mount unit 303 consists of a mount ring 309 having a bayonet claw that engages with the camera mount, a connecting ring 310, an electrical contact unit 311, an intermediate contact board 312, and screws connecting them. As shown in Figure 12, the electrical contact unit 311 is fixed to the lower part of the image plane side surface of the mount ring 309. The intermediate contact board 312, fixed near the lower part of the connecting ring 310, has multiple conductive patterns 312a mounted on its subject-side surface. The intermediate contact board 312 and the electrical contact unit 311 are connected by a conductive cable 313 so that each of these conductive patterns 312a is electrically connected to each electrical contact member 311a of the aforementioned electrical contact unit 311. The inner circumferential surface of the connecting ring 310 is provided with a recess 310a for accommodating the conductive cable 313 that connects the intermediate contact board 312 and the electrical contact unit 311. Furthermore, a recess 310b is provided near the upper part of the surface of the connecting ring 310 to which the intermediate contact board 312 is fixed. Furthermore, the mounting surface to the lens body is provided with a groove 310f that engages with a pin 20 protruding from the mounting surface (contact surface) 204b of the first fixed cylinder 204, and precisely regulates the relative angular relationship between the lens body 202 and the mount unit 303 around the optical axis.

[0031] On the other hand, on the image-side surface of the lens body 202, the first fixed cylinder 204 has two notches 204a and 204c located opposite the intermediate contact substrates 12 and 312. Two intermediate contact units 214 and 314 mounted on the electrical component mounting substrate 208 are exposed through the two notches 204a and 204c. The intermediate contact units 214 and 314 are formed by combining multiple metal pin-shaped contact members 214a and 314a into a single mounted component using a resin material. Each pin-shaped electrical contact member 214a and 314a is biased in the optical axis direction when coupled with the mount unit 303 by an internal coil spring biasing structure (not shown), allowing its tip to extend and retract within a predetermined stroke range while maintaining conductivity as a contact. The electrical contact members 214a and 314a of the intermediate contact units 214 and 314 are positioned to contact the conductive patterns 12a and 312a of the intermediate contact substrates 12 and 312, respectively. The recess 210b of the mount unit 203 is in the same phase as the intermediate contact unit 314, and the recess 310b of the mount unit 303 is in the same phase as the intermediate contact unit 214. The procedure for replacing the mount in the lens device configured as described above is explained below.

[0032] Here, we consider switching from the first mount type to the second mount type. First, remove all the screws 5 that secure the first mount type mount unit 203 to the lens body 202, and then remove the mount unit 203 from the lens body 202 in the direction of the optical axis. Since the electrical contact member 214a cannot extend beyond a predetermined stroke, the mount unit 203 can be completely removed from the lens body.

[0033] Next, when the second mount type mount unit 303 is brought closer to the first fixed cylinder 204 of the lens body from the image plane side in the direction of the optical axis, the electrical contact member 314a of the intermediate contact unit 314 first comes into contact with the conductive pattern 312a of the intermediate contact substrate 312. When the mount unit 303 is pushed further toward the subject from that state, the tip of the electrical contact member 314a retracts against the biasing force of the coil spring mentioned above, and the mount unit 303 comes into contact with the mounting surface 204d of the first fixed cylinder 204. Since a recess 310b is provided at the position opposite the intermediate contact unit 214, the tip of the electrical contact member 214a of the intermediate contact unit 214 does not come into contact with anything. With the mount unit 303 in contact with the mounting surface 204d of the first fixed cylinder 204, the screw 5 that was removed earlier is tightened again, and the mount replacement work is completed.

[0034] When switching from the second mount type to the first mount type, perform the above steps in the reverse order. In the lens device of this embodiment, configured as described above, it is not necessary to remove the mount units 203 and 303 from the lens body 202 and to disconnect the electrical connections independently and sequentially, similar to the lens device of Embodiment 1. Disconnecting the electrical connections can be achieved simultaneously with the single operation of removing the mount units 203 and 303. Similarly, for the mounting operation, it is not necessary to prepare independently for the operation of attaching the mount units 203 and 303 to the lens body 202 and for connecting the electrical connections. Connecting the electrical connections can be achieved simultaneously with the single operation of attaching the mount units 203 and 303.

[0035] Furthermore, since the electrical connection between the lens body 202 and the mount units 203 and 303 is made by contact between conductors with biasing force, there is no risk of damaging the conductive cable at the electrical connection point, as in conventional technology.

[0036] In this embodiment, unlike the configuration of Embodiment 1, the electrical contact members of the intermediate contact unit on the lens body side differ between the first mount type and the second mount type. This makes it possible to design different circuits on the electrical component mounting board for each mount type. Therefore, this embodiment can be applied even when the specifications such as the voltage and communication content of the electrical contacts with the camera differ depending on the mount type.

[0037] Furthermore, when one intermediate contact unit makes contact with the intermediate contact substrate, the tip of the electrical contact component of the other intermediate contact unit remains insulated and non-contact, making it possible to automatically electrically determine which type of mounting unit is connected.

[0038] Furthermore, when a mounting unit of the first or second mounting type is selectively assembled, the electrical contact members that are electrically connected may be arranged at approximately the same phase in a plane perpendicular to the optical axis. The present invention can also be applied even if some of the electrical contact members are used in common (as overlapping contact members) for both mounting types.

[0039] In this embodiment, the intermediate contact unit and intermediate contact board, which are electrically connected in the first and second mount types, are arranged at different phases in a plane perpendicular to the optical axis. In this case, it is easy to distribute the connecting and fixing parts between the lens body and the mount unit in the circumferential direction. Therefore, it is possible to avoid unevenness in connection strength. Furthermore, when accommodating mount types with significantly different phases of electrical contacts with the camera, the phases of the electrical contacts with the camera and the intermediate contact board can be brought closer together, which has the advantage of making wiring easier during the assembly of the mount unit.

[0040] Although the above description of the embodiment uses two types of mounts, the present invention is also applicable when supporting three or more types of mounts.

[0041] In this embodiment, the electrical contact members 214a and 314a are configured to expand and contract in the optical axis direction by the biasing force of a coil spring. However, the present invention is not limited thereto, and the conductive patterns 12a and 312a of the intermediate contact substrates 12 and 312 may be configured to expand and contract in a direction parallel to the optical axis by a biasing member. Furthermore, in the embodiment, the electrical contact members 214a and 314a were configured to expand and contract in the optical axis direction by the biasing force of a coil spring, and the conductive patterns 12a and 312a of the intermediate contact substrates 12 and 312 were configured in a plane perpendicular to the optical axis. However, the present invention is not limited to the contact surface of the electrical contact being configured in a plane perpendicular to the optical axis. The contact surface may be configured on a circumferential surface centered on the optical axis, and an electrical contact member configured on the other member, which is configured to expand and contract in a direction perpendicular to the optical axis, may be in contact with that contact surface. Moreover, the contact surface is not limited to being configured on a plane perpendicular to the optical axis or on a circumferential surface centered on the optical axis, and the contact surface may be configured on the side surface of a frustum of a cone with the optical axis as its axial direction, and an electrical contact member that expands and contracts in a direction perpendicular to that contact surface (biasing direction) may be configured on the other member.

[0042] As shown in Figure 14, an imaging device that can enjoy the effects of the present invention can be realized by comprising a lens device 1000 of the present invention and a camera device 2000 having an image sensor 2001 that captures the image formed by the lens device 1000.

[0043] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of its gist. [Explanation of Symbols]

[0044] 1. 201: Lens device 11, 311: Electrical contact unit 11a, 311a: Electrical contact members 3,203: First mounting unit (mounting section) 103, 303: Second mounting unit (mounting section, second mounting section) 2,202: Lens body (main body) 8, 208: Electrical circuit board 14, 214, 314: Intermediate contact unit 14a, 214a: Electrical contact members 314a: Electrical contact member 12, 312: Intermediate contact board 12a, 312a: Electrical contact components)

Claims

1. A lens device comprising a main body containing an optical system and a mount portion that is detachably attached to a camera device, wherein the main body and the mount portion are detachably coupled to each other, The mounting portion has a first electrical contact portion that contacts the electrical contact portion of the camera device, and a second electrical contact portion that is electrically connected to the first electrical contact portion. The main body comprises an electrical circuit board and a third electrical contact portion that is electrically connected to the electrical circuit board. The main body and the mounting portion are connected to each other, causing the second electrical contact portion and the third electrical contact portion to come into contact. The mounting portion is interchangeable with a second mounting portion having a fourth electrical contact portion that contacts an electrical contact portion of a camera device other than the camera device, and a fifth electrical contact portion that is electrically connected to the fourth electrical contact portion. The main body portion has a sixth electrical contact portion that is electrically connected to the electrical circuit board. A lens device characterized in that the main body and the second mount are coupled to each other, thereby causing the fifth electrical contact and the sixth electrical contact to come into contact.

2. The lens device according to claim 1, characterized in that one of the second electrical contact portion and the third electrical contact portion is biased relative to the other of the second electrical contact portion and the third electrical contact portion.

3. The lens device according to claim 2, wherein the lens device has a biasing member that biases one of the lenses toward the other, and the biasing member is expandable and contractible in the biasing direction.

4. The lens device according to claim 3, characterized in that the biasing direction is parallel to the optical axis.

5. The lens device according to claim 3, characterized in that the biasing direction is perpendicular to the optical axis.

6. The lens device according to any one of claims 1 to 5, characterized in that the third electrical contact portion and the sixth electrical contact portion both include at least one identical electrical contact in common.

7. The lens device according to any one of claims 1 to 5, characterized in that the third electrical contact portion and the sixth electrical contact portion are arranged in areas separate from each other.

8. The lens device according to any one of claims 1 to 7, characterized in that the aforementioned mounting portion and the second mounting portion are fixed to the main body portion by a common fixing member.

9. The lens device according to any one of claims 1 to 7, characterized in that the mount portion and the second mount portion are provided with recesses that do not contact the electrical contact portion of the main body portion that contact the electrical contact portion of the other mount portion.

10. An imaging device comprising a lens device according to any one of claims 1 to 9, and an image sensor for capturing an image formed by the lens device.

Images