Image capturing device

Abstract

To provide an image capturing device which allows for easily switching between the used state and non-used state of multiple optical members without increasing the size.SOLUTION: An image capturing device (100) is provided, comprising an image sensor (121), a first optical member (160), a second optical member (510) disposed in parallel to the first optical member in an optical axis direction, and a grip (101) to be gripped by a user. Each of the first and second optical members moves between a first position where the optical member is inserted to an imaging range (190) and a second position where the optical member is retracted from the imaging range by swinging in a direction from the first position toward the grip.SELECTED DRAWING: Figure 3

Description

Technical Field

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

Background Art

[0002] Conventionally, an imaging device capable of imaging using an optical filter such as a dimming filter (ND filter) is known. Patent Document 1 discloses an imaging device including a plurality of ND filters, in which the ND filters can move back and forth vertically.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the imaging device disclosed in Patent Document 1, since a space for the optical filter (optical member) to retract vertically is required, the imaging device becomes large-sized. In such an imaging device, when further providing other optical members such as a light-shielding member for protecting the imaging element and preventing dust adhesion, the device becomes even larger-sized.

[0005] Therefore, an object of the present invention is to provide an imaging device that can easily switch between the used state and the unused state of a plurality of optical members without increasing the size.

Means for Solving the Problems

[0006] An imaging device as one aspect of the present invention includes an image sensor, a first optical member, a second optical member arranged parallel to the first optical member in the optical axis direction, and a gripping portion that is grasped by a user, wherein the first optical member and the second optical member move between a first position inserted into the imaging range and a second position rotated from the first position toward the gripping portion and retracted from the imaging range.

[0007] Other objects and features of the present invention are described in the following examples. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide an imaging device that can easily switch between the usage state and non-usage state of multiple optical elements without increasing its size. [Brief explanation of the drawing]

[0009] [Figure 1] This is an external perspective view of the imaging device in this embodiment. [Figure 2] This is a block diagram of the imaging device in this embodiment. [Figure 3] This is an exploded perspective view of the imaging device in this embodiment. [Figure 4] This diagram shows the state of the imaging device in this embodiment when the power is turned off. [Figure 5] This is a diagram showing the state of the light-shielding filter holding member during operation in this embodiment. [Figure 6] This diagram shows the state of the light-shielding filter holding member when it is retracted in this embodiment. [Figure 7] This is a diagram showing the state of the optical filter holding member during operation in this embodiment. [Figure 8] This diagram shows the state of the optical filter holding member when it is retracted in this embodiment. [Figure 9] This is a cross-sectional view of the imaging device in this embodiment. [Figure 10] This is a timing chart showing the movement of the light-shielding filter holding member and the optical filter holding member in this embodiment. [Modes for carrying out the invention]

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In these embodiments, common elements are denoted by the same reference numerals. Furthermore, these embodiments are merely examples for realizing the present invention, and should be modified or changed as appropriate depending on the configuration of the apparatus to which the present invention is applied and various conditions. The present invention is not limited to the following embodiments. In addition, some of the embodiments described later may be combined as appropriate.

[0011] First, the imaging device in Embodiment 1 of the present invention will be described with reference to Figures 1(a) and (b). Figures 1(a) and (b) are external perspective views of the imaging device (camera body) 100 in this embodiment. Figure 1(a) is an external perspective view of the imaging device 100 as seen from the front, showing the state with the lens device (interchangeable lens) 104 (see Figure 2), which can be attached to the imaging device 100, removed. Figure 1(b) is an external perspective view of the imaging device 100 as seen from the rear. Although this embodiment describes an imaging system in which the lens device 104 can be attached to and detached from the imaging device (camera body) 100, it is not limited to this and can also be applied to imaging devices in which the camera body and lens device are integrally configured.

[0012] The imaging device 100 has a grip portion (gripping portion) 101 that the user can hold to stably hold the imaging device 100. A shutter button 102, which is a switch for starting imaging, is provided on the upper part of the grip portion 101. A mount portion (lens mount) 103 is provided on the front of the imaging device 100, and the lens device 104 is configured to be detachably attached to the imaging device 100 via the mount portion 103. An opening 190 that defines the imaging range is provided inside the mount portion 103. The mount contact 105 electrically connects the imaging device 100 and the lens device 104, supplying power to the lens device 104 and communicating about lens control and lens data via electrical signals. When replacing the lens device 104, the lock can be released by pressing the lens lock release button 106, and the lens device 104 can be removed.

[0013] The power switch 107 is used to turn the power of the imaging device 100 ON or OFF. The main electronic dial 108 and sub electronic dial 119 are rotary operating members that can be rotated clockwise and counterclockwise, and by rotating them, various settings such as aperture and shutter speed can be changed. The mode switching dial 109 is an operating part for switching shooting modes and is used to switch to various modes such as shutter speed priority shooting mode, aperture value priority shooting mode, and video shooting mode. The SET button 110 is a push button and is mainly used to confirm selection items.

[0014] The LCD monitor 111 displays various settings screens for the imaging device 100, captured images, and live view images. The electronic viewfinder 112 is an eyepiece-compatible viewfinder that also displays various settings screens for the imaging device 100, captured images, and live view images. The multifunction button 113 is a push button that can be assigned by the user to switch various shooting settings. The display panel 114 displays the status of various settings for the imaging device 100, such as shooting mode and ISO sensitivity. The display panel 114 is also displayed when the power to the imaging device 100 is turned OFF.

[0015] The accessory socket 115 has accessory contacts 116 and can attach various accessories such as an external flash or microphone. The media slot cover 173 is openable and closable, and when it is open, an external recording medium (recording medium) 148 such as an SD card (see FIG. 8) can be inserted into and removed from the internal media slot (recording medium insertion part) 172 (see FIG. 8).

[0016] Next, referring to FIG. 2, the electrical configuration and operation of the imaging device 100 will be described. FIG. 2 is a block diagram of the imaging device 100 and shows a state in which the lens device 104 is mounted. Parts common to FIG. 1 are denoted by the same reference numerals.

[0017] The MPU 130 is a small central processing unit (control unit) built into the imaging device 100. Connected to the MPU 130 are a time measurement circuit 131, a shutter drive circuit 132, a switch sense circuit 133, a power supply circuit 134, a battery check circuit 135, a video signal processing circuit 136, a filter drive circuit 137, and a piezoelectric element drive circuit 145. The MPU 130 is responsible for controlling the operation of the imaging device 100, processes input information, and gives instructions and controls to each element. The MPU 130 has an EEPROM and can store time information by the time measurement circuit 131 and various setting information.

[0018] Also, the MPU 130 communicates with a lens control circuit 138 built into the lens device 104 via the mount contacts 105. Thereby, the MPU 130 can control the operations of the focus lens 141 and the electromagnetic drive aperture (aperture stop) 142 via the AF drive circuit 139 or the aperture drive circuit 140. In FIG. 2, only one focus lens 141 is schematically shown as the imaging optical system of the lens device 104, but actually the imaging optical system is composed of a number of lens groups.

[0019] The AF drive circuit 139 is connected to, for example, a stepping motor (not shown) and drives the focus lens 141. The MPU 130 calculates the amount of focus lens drive according to the amount of defocus detected using the focus signal read from the image sensor 121 and transmits a focus command including the amount of focus lens drive to the lens control circuit 138. Upon receiving the focus command, the lens control circuit 138 controls the drive of the focus lens 141 through the AF drive circuit 139. This enables autofocus (AF).

[0020] The aperture drive circuit 140 is connected to an aperture actuator such as a stepping motor (not shown) and drives multiple aperture blades (not shown) that form the aperture opening in the electromagnetically driven aperture 142. By driving the multiple aperture blades, the size (diameter) of the aperture opening changes, and the amount of light is adjusted.

[0021] The MPU 130 calculates the aperture drive amount of the electromagnetically driven aperture 142 from the brightness signal read from the image sensor 121 and transmits an aperture command including the aperture drive amount to the lens control circuit 138. In other words, the MPU 130 communicates with the lens control circuit 138 to control the electromagnetically driven aperture 142. Upon receiving the aperture command, the lens control circuit 138 controls the drive of the electromagnetically driven aperture 142 through the aperture drive circuit 140. This automatically sets an appropriate aperture value (F number).

[0022] The light-shielding filter (light-shielding member) 510 is driven by a motor 601, described later, which is connected to the filter drive circuit 137. When the power is OFF, the light-shielding filter 510 is driven to a position that covers the opening 190 and blocks light. The light-shielding filter 510 can prevent the image sensor 121 from being scratched or dust from adhering to the image sensor 121. Conversely, when shooting (when the power is ON), the light-shielding filter 510 is driven to a position that is retracted from the opening 190.

[0023] The optical filter (first optical element) 160 is an optical element that gives a special effect to an image by diffusing incident light or attenuating a specific wavelength range. The optical filter 160 is an ND filter that attenuates the amount of incident light by a constant rate, a Polarized Light (PL) filter that suppresses reflected light using a polarizing film, or a soft filter that creates a soft expression by diffusing light, but is not limited to these. The optical filter 160 is driven by a motor 601, which will be described later and is connected to the filter drive circuit 137. The detailed configuration of the optical filter 160 and the light-shielding filter 510 will be described later.

[0024] The imaging unit 120 is mainly composed of an optical low-pass filter 122, an optical low-pass filter holding member 123, a piezoelectric element (piezoelectric member) 124, and an image sensor 121, all integrated into a single unit. The image sensor 121 converts the subject image (optical image) formed via the lens device 104 into photoelectric power. In this embodiment, the image sensor 121 is a Complementary Metal-Oxide-Semiconductor (CMOS) sensor, but is not limited to this. A Charge-Coupled Device (CCD) sensor or a Charge Injection Device (CID) sensor may also be used as the image sensor 121. The optical low-pass filter 122, positioned in front of the image sensor 121, is a single birefringent plate made of quartz, and its shape is rectangular. The piezoelectric element 124 is a single-plate piezoelectric element (piezo element) that is excited by a piezoelectric element driving circuit 145 instructed by the MPU 130, and is configured to transmit its vibrations to the optical low-pass filter 122. This vibration can shake off fine dust particles that have adhered to the optical low-pass filter 122.

[0025] The video signal processing circuit 136 is responsible for all aspects of image processing, including filtering and data compression, of the electrical signals obtained from the image sensor 121. Image data for monitor display from the video signal processing circuit 136 is displayed on the liquid crystal monitor 111 and the electronic viewfinder 112 via the liquid crystal drive circuit 144. The video signal processing circuit 136 can also save image data to the buffer memory 147 via the memory controller 146, according to instructions from the MPU 130. The video signal processing circuit 136 can also perform image data compression processing such as JPEG. When continuous shooting is performed, such as in burst shooting, the image data can be temporarily stored in the buffer memory 147, and the unprocessed image data can be sequentially read out via the memory controller 146. This allows the video signal processing circuit 136 to sequentially perform image processing and compression processing regardless of the speed of the incoming image data.

[0026] The memory controller 146 has the function of storing image data in an external recording medium 148 and the function of reading image data stored in the external recording medium 148. The external recording medium 148 is an SD card or CF card that can be attached to or removed from the imaging device 100, but is not limited to these.

[0027] The switch sense circuit 133 transmits input signals to the MPU 130 according to the operating state of each switch. Switch SW1 (102a) is turned ON by the first stroke (half-press) of the shutter button 102. Switch SW2 (102b) is turned ON by the second stroke (full-press) of the shutter button 102. When switch SW2 (102b) is turned ON, an instruction to start shooting is sent to the MPU 130. The switch sense circuit 133 is also connected to the main electronic dial 108, mode selection dial 109, power switch 107, SET button 110, and multifunction button 113, among others.

[0028] The MPU 130 communicates information via the accessory contact 116 through the accessory communication control circuit 118 to utilize the functions of an accessory unit (not shown). The power supply circuit 134 distributes and supplies power from the battery 143 to each element of the imaging device 100. A battery check circuit 135 is also connected to the battery 143, which transmits information such as the remaining charge of the battery 143 to the MPU 130.

[0029] Next, the internal configuration of the imaging device 100 will be described with reference to Figure 3. Figure 3 is an exploded perspective view of the imaging device 100. The imaging device 100 mainly has a structure covered by an exterior front cover 10, a top cover 11, and a rear cover 12, and operating members and display members are attached to each exterior. On the optical axis 1000, in order of proximity to the subject, a light-shielding filter holding member 500, an optical filter holding member 600, an imaging unit 120, and a main circuit board 180 are arranged.

[0030] Next, with reference to Figures 4(a), (b) through 10, the configuration of the light-shielding filter 510 and the optical filter 160 in this embodiment and their operation during switching will be described. Figures 4(a) and (b) are state diagrams of the imaging device 100 when the power is OFF. Figures 5(a) and (b) are state diagrams of the light-shielding filter holding member 500 when it is driven. Figures 6(a) and (b) are state diagrams of the light-shielding filter holding member 500 when it is retracted. Figures 7(a) and (b) are state diagrams of the optical filter holding member 600 when it is driven. Figures 8(a) and (b) are state diagrams of the optical filter holding member 600 when it is retracted. Figures 4(a), 5(a), 6(a), 7(a), and 8(a) are plan views of the imaging device 100 as seen from the rear side. Figures 4(b), 5(b), 6(b), 7(b), and 8(b) are perspective views of the drive mechanisms of the light-shielding filter 510 and the optical filter 160, respectively. Figure 9 is a cross-sectional view of the imaging device 100, showing a cross-section along line AA in Figure 8(a). Figure 10 is a timing chart showing the movement of the light-shielding filter holding member 500 and the optical filter holding member 600, corresponding to the notation in Figures 4 to 8.

[0031] The light-shielding filter 510 is inserted into and held by the light-shielding filter holding member 500. The light-shielding filter holding member 500 has follower shapes 500a and 500b and is mounted so as to be rotatable about a rotation axis 604a provided on the gear base 604. The light-shielding filter holding member 500 is also biased in the counterclockwise direction in Figure 4(a) by a spring member (not shown) so as to move to a position that covers the opening 190 that defines the imaging range.

[0032] The optical filter 160 is inserted into and held by the optical filter holding member 600. The optical filter holding member 600 has follower shapes 600a and 600b and, like the light-shielding filter holding member 500, is mounted so as to be rotatable about a rotation axis 604a provided on the gear base 604. The optical filter holding member 600 is also biased in the counterclockwise direction in Figure 4(a) by a spring member (not shown) so as to move to a position that covers the opening 190.

[0033] A motor (drive unit) 601 for driving the light-shielding filter 510 and the optical filter 160 is mounted on the gear base 604. A worm gear 601a is mounted on the drive shaft of the motor 601. The worm gear 601a transmits rotational force to the follower shapes 500a and 500b of the light-shielding filter holding member 500 and the follower shapes 600a and 600b of the optical filter holding member 600 via gears 602 and 603. This allows the motor 601 to rotate the light-shielding filter holding member 500 and the optical filter holding member 600. A battery compartment 170 for housing the battery 143 is provided on the right side of the front cover 10.

[0034] Figures 4(a) and 4(b) show the state in which the light-shielding filter 510 and the optical filter 160 are positioned to cover the opening 190 and are superimposed in a direction along the optical axis 1000 (inserted position, first position). In this state, the power supply of the imaging device 100 is OFF, and the opening 190 (and the image sensor 121) are shielded from light by the light-shielding filter 510 and the optical filter 160. Because the image sensor 121 is covered by the light-shielding filter 510 and the optical filter 160, the image sensor 121 is protected and can be prevented from being scratched. In addition, when replacing the lens device 104, dust can be prevented from entering through the opening 190 and adhering to the image sensor 121.

[0035] When the power switch 107 of the imaging device 100 is turned ON from the state shown in Figures 4(a) and (b), a drive command for the motor 601 is sent from the MPU 130, and the motor 601 starts rotating via the filter drive circuit 137. The rotation is transmitted from the worm gear 601a to the gear 602 and then to the follower shape 500a via the cam 603a of the cam gear 603. As a result, the light-shielding filter holding member 500 starts rotating clockwise as shown in Figure 4(a). Figures 5(a) and (b) show the state during rotation.

[0036] The rotation continues thereafter, transmitted to the follower shape 500b via the cam 603b of the cam gear 603, and transitions to the state shown in Figures 6(a) and (b) where the light-shielding filter holding member 500 is retracted from the opening 190. When the light-shielding filter holding member 500 moves to the predetermined position shown in Figures 6(a) and (b), a position sensor (not shown) detects this, and the filter drive circuit 137 stops the motor 601. The position sensor refers to a position detection means such as a photoreflector, but the timing of stopping the drive can be determined by any means, such as detecting the rotation angle of the motor 601 or detection by a mechanical switch.

[0037] In the state shown in Figures 6(a) and (b), the light-shielding filter holding member 500 is rotated approximately 90 degrees on a plane parallel to the imaging unit 120 relative to the inserted state in Figures 4(a) and (b), and is retracted from the opening 190 (retracted state position, second position). At this time, the optical filter 160 remains in a position that covers the opening 190 (inserted state). As a result, light incident on the image sensor 121 passes through the optical filter 160, and various photographic expressions become possible due to the effect of the optical filter 160. For example, if the optical filter 160 is a neutral density filter (ND filter), the incident light is reduced, making it possible to take long exposures and suppress overexposure even in bright environments.

[0038] In this embodiment, the multifunction button 113 is assigned the function of switching the insertion / retraction of the optical filter 160. Next, the operation when the optical filter 160 is driven by user operation will be described. Note that other buttons, dials, switches, setting screens, etc., may also be used for switching the optical filter 160.

[0039] When the multifunction button 113 is pressed from the inserted state shown in Figures 6(a) and (b), the press is detected by the switch sense circuit 133. At this time, a drive command for the motor 601 is sent from the MPU 130, and the motor 601 starts rotating via the filter drive circuit 137. The signal is transmitted from the worm gear 601a to the gear 602 and the cam 603c of the cam gear 603 to the follower shape 600a, and the optical filter holding member 600 starts rotating clockwise in Figure 6(a). Figures 7(a) and (b) show the state during rotation.

[0040] The rotation continues thereafter, and is transmitted to the follower shape 600b via the cam 603d of the cam gear 603, causing the optical filter 160 to retract from the opening 190 (retracted position, second position), as shown in Figures 8(a) and (b). When the optical filter holding member 600 moves to the predetermined position shown in Figures 8(a) and (b), a position sensor (not shown) detects this, and the filter drive circuit 137 stops the motor 601. The position sensor refers to a position detection means such as a photoreflector, but the timing of stopping the drive can be determined by any means, such as detecting the rotation angle of the motor 601 or detection by a mechanical switch.

[0041] The rotating shaft 604a is positioned on the bottom side of the imaging device 100, relative to the optical axis 1000. As shown in Figures 5(a), (b) and 7(a), (b), the rotating shaft 604a allows the light-shielding filter holding member 500 and the optical filter holding member 600 to rotate without interfering with internal components such as the top cover 11. Furthermore, by holding both the light-shielding filter holding member 500 and the optical filter holding member 600 on the rotating shaft 604a (rotating them around the same axis), the drive components, including the gear 602 and cam gear 603, can be efficiently arranged and miniaturized. Similarly, by positioning the motor 601 on the bottom side of the optical axis 1000, the power transmission distance to the cam gear 603 is shortened, thereby increasing the driving efficiency.

[0042] In the state shown in Figure 8(a), the optical filter holding member 600 is rotated approximately 90 degrees on a plane parallel to the imaging unit 120 relative to the insertion state in Figure 4(a), and is retracted from the opening 190 (retracted position, second position). In the retracted position, the light-shielding filter 510 and the optical filter 160 are superimposed in a direction along the optical axis 1000. With the optical filter holding member 600 retracted, the light focused by the lens device 104 enters the image sensor 121 without passing through the optical filter 160.

[0043] As shown in Figure 9, in the retracted state, the light-shielding filter holder member 500 and the optical filter holder member 600 are retracted between the opening 190 and the battery storage section 170, that is, between the opening 190 and the grip section 101. By rotating the light-shielding filter holder member 500 and the optical filter holder member 600 by approximately 90 degrees, the short sides of the light-shielding filter 510 and the optical filter 160 become approximately parallel to the X direction. This allows the light-shielding filter holder member 500 and the optical filter holder member 600 to be housed in the area between the opening 190 and the battery storage section 170.

[0044] If the user wishes to reinsert the optical filter 160, pressing the multifunction button 113 in the retracted state shown in Figures 8(a) and 8(b) causes the motor 601 to rotate in the opposite direction to the operation described above. As a result, the optical filter 160 moves through the intermediate states shown in Figures 7(a) and 7(b) to the inserted state shown in Figures 6(a) and 8(b).

[0045] As described above, in this embodiment, the imaging device 100 includes a first optical member (optical filter 160) and a second optical member (light-shielding filter 510) arranged parallel to the first optical member in the optical axis direction. The first optical member and the second optical member move between a first position in which they are inserted into the imaging range (aperture 190) and a second position in which they are rotated from the first position toward the gripping portion and retracted from the imaging range. The first position is where the optical filter 160 covers the imaging range (imaging area including the optical axis 1000), and the second position is where the optical filter 160 does not overlap the imaging range.

[0046] In this embodiment, a light-shielding filter (light-shielding member) 510 is used as the second optical element, but it is not limited to this, and optical filters such as ND filters, PL filters, or low-pass filters (soft filters) may be used. Similarly, the optical filter 160 is not limited to an ND filter, and other optical filters such as PL filters or low-pass filters (soft filters) may be used. For example, if both the light-shielding filter 510 and the optical filter 160 are ND filters with different light-reducing amounts, the amount of light reduction can be set in three stages, enabling a wider range of photographic expression. Furthermore, in this embodiment, the imaging device 100 can operate normally even when both the light-shielding filter 510 and the optical filter 160 are in the retracted state.

[0047] Furthermore, in this embodiment, the user experience can be further improved by adjusting the rotation speed of the motor 601 and making the rotation speed of the light-shielding filter holding member 500 and the optical filter holding member 600 variable. For example, if the user wants to reduce the operating noise during rotation, even if it means switching between the light-shielding filter 510 or the optical filter 160 is slightly slower, the rotation speed of the motor 601 can be set to be slower. Conversely, if the user wants to switch quickly, even if it means making a slightly louder operating noise during rotation, the rotation speed of the motor 601 can be set to be faster.

[0048] Furthermore, in this embodiment, both the light-shielding filter holding member 500 and the optical filter holding member 600 are configured to rotate using a single motor 601, but the system is not limited to this configuration. A more flexible configuration may be adopted, in which two motors are used to rotate the light-shielding filter holding member 500 and the optical filter holding member 600 independently, thereby rotating each filter at a desired timing.

[0049] With the above configuration, it is possible to provide an imaging device that can easily switch between the inserted state and the retracted state of the first optical element (optical filter 160) and the second optical element (light-shielding filter 510) without increasing the size.

[0050] 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. For example, in the embodiments described above, a configuration was described in which the insertion and removal of the optical filter 160 is controlled in response to the user pressing the multifunction button 113, but the invention is not limited thereto. For example, if the presence or absence of insertion or removal of the optical filter 160 can be adjusted as one of the parameters for exposure control, the imaging device 100 may be configured to automatically insert or remove the optical filter 160 according to the brightness of the subject. [Explanation of symbols]

[0051] 100 Imaging device 101 Grip section (handling section) 121 Image sensor 160 Optical filter (first optical component) 510 Light-shielding filter (second optical component)

Claims

1. An imaging element; A first optical member; A second optical member disposed parallel to the first optical member in the optical axis direction; A grip portion to be gripped by a user, An imaging device characterized in that the first optical member and the second optical member each move between a first position inserted into an imaging range and a second position rotated from the first position toward the gripping portion and retreated from the imaging range.

2. the first optical member is an optical filter, The imaging device according to claim 1 , wherein the second optical member is a light blocking member.

3. the first optical member is a first optical filter, 2. The imaging device according to claim 1, wherein the second optical member is a second optical filter.

4. 4. The imaging device according to claim 3, wherein the first optical filter and the second optical filter include an ND filter, a PL filter, or a soft filter.

5. 5. The imaging device according to claim 1, wherein the first optical member and the second optical member rotate about a same axis.

6. a driving unit that drives the first optical member and the second optical member, 6. The imaging device according to claim 1, wherein the first optical member and the second optical member are rotated by the drive unit.

7. 7. The imaging device according to claim 1, wherein the first optical member and the second optical member are rotatable between the first position and the second position at different timings.

8. An imaging element; A first optical member; A second optical member disposed parallel to the first optical member in the optical axis direction; A grip portion to be gripped by a user, the first optical member and the second optical member each move between a first position where the first optical member is inserted into an imaging range and a second position where the first optical member is rotated from the first position toward the gripping portion and retreated from the imaging range; 11. An imaging device, comprising: an imaging member having a first optical member and a second optical member, the rotation speeds of which are variable.

9. The lens device further includes a detachable mount portion, 9. The imaging device according to claim 1, wherein the first optical member and the second optical member are disposed between the imaging element and the mount portion.

10. 10. The imaging device according to claim 9, wherein the imaging range is defined by an opening provided inside the mount portion.

Images