Optical device and imaging device

Abstract

To provide a lens device which allow a user to check the amount of tilt on a display screen of an image capturing device.SOLUTION: A lens device disclosed herein is attachable to an image capturing device and comprises an image capturing optical system including at least one optical member to be moved for tilt shooting, and a transmission unit for transmitting information on a movable range of the at least one optical member to the image capturing device.SELECTED DRAWING: Figure 1

Description

Technical Field

[0006] , ,

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

Background Art

[0002] Conventionally, in order to perform rolling shutter imaging, an interchangeable-lens camera that adjusts the amount of rolling, such as the shift amount or tilt amount of a lens with respect to an imaging surface, is known. Patent Document 1 discloses a configuration in which the depth of field based on the amount of rolling is displayed on a screen provided in the camera.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, with the configuration of Patent Document 1, the current amount of rolling cannot be confirmed.

[0005] An object of the present invention is to provide a lens device that enables the amount of rolling to be confirmed on a display screen provided in an imaging device.

Means for Solving the Problems

[0006] A lens device according to one aspect of the present invention is a lens device that can be attached to an imaging device, and includes an imaging optical system including at least one optical member that is moved to perform rolling shutter imaging, and a transmission unit that transmits information regarding the movable range of the at least one optical member to the imaging device.

Effects of the Invention

[0007] According to the present invention, it is possible to provide a lens device that enables the amount of rolling to be confirmed on a display screen provided in an imaging device. [Brief explanation of the drawing]

[0008] [Figure 1] This is a block diagram of a camera system according to an embodiment of the present invention. [Figure 2] This flowchart shows an example of a method for displaying information regarding the tilt drive and revolving drive in Example 1 on the display unit. [Figure 3] This figure shows an example of how information regarding tilt drive and revolving drive can be displayed. [Figure 4] This figure shows another example of how to display information regarding the tilt drive and revolving drive in Example 1 on the display unit. [Figure 5] This figure shows another example of how information regarding tilt drive and revolving drive can be displayed. [Figure 6] This flowchart shows an example of a method for displaying information regarding the tilt drive and revolving drive in Example 2 on the display unit. [Figure 7] This flowchart shows an example of a method for displaying information regarding the tilt drive and revolving drive in Example 3 on the display unit. [Modes for carrying out the invention]

[0009] The embodiments of the present invention will be described in detail below with reference to the drawings. In each figure, the same reference numeral is used for identical components, and redundant explanations are omitted.

[0010] Figure 1 is a block diagram of a camera system according to an embodiment of the present invention. The camera system includes an interchangeable lens (lens device) 100 and a camera body (imaging device) 200.

[0011] The interchangeable lens 100 is mechanically and electrically connected to the camera body 200 via a mount (not shown). The interchangeable lens 100 receives power from the camera body 200 via a power terminal (not shown) provided on the aforementioned mount. The camera body 200 communicates with the interchangeable lens 100 via a communication terminal (not shown) provided on the aforementioned mount and controls the interchangeable lens 100 by sending commands.

[0012] The configuration of the camera body 200 will be described below. The camera body 200 includes an image sensor 201, a signal processing unit 202, a recording processing unit 203, a display unit 204, an operation unit 205, and a camera microcomputer (hereinafter referred to as camera microcontroller) 206.

[0013] The image sensor 201 converts the subject image formed by the imaging optical system in the interchangeable lens 100 into an electrical signal (analog signal) via photoelectric conversion. The analog signal from the image sensor 201 is converted into a digital signal by an A / D conversion circuit (not shown).

[0014] The signal processing circuit 202 performs various image processing operations on the digital signal from the A / D conversion circuit to generate a video signal, which is then output to the recording processing unit 203 and the display unit 204. The recording processing unit 203 stores the video signal as still images or moving image data in external memory or the like. The display unit 204 displays the video signal as a live view image used for checking composition, focus status, etc. The signal processing circuit 202 also generates focus information, which indicates the contrast status of the subject image, i.e., the focus status of the imaging optical system, and luminance information, which represents the exposure status, from the video signal.

[0015] The camera microcontroller 206 functions as a control unit that controls the camera body 200 in response to inputs to the imaging instruction switch and various setting switches included in the operation unit 205. The camera microcontroller 206 also transmits commands related to the adjustment of the aperture unit 103, focus lens 105, tilt lens 112, shift lens 113, and revolving drive unit 114 to the lens microcontroller (hereinafter referred to as the lens microcontroller) 111.

[0016] The configuration of the interchangeable lens 100 will be described below. The interchangeable lens 100 includes an imaging optical system, various control units that control various actuators for driving the imaging optical system, an operation ring 110, and a lens microcomputer 111.

[0017] The lens microcomputer 111 controls the operations of each part within the interchangeable lens 100. Also, the lens microcomputer 111 receives a command transmitted from the camera body 200 and receives a transmission request for lens data. Further, the lens microcomputer 111 performs lens control corresponding to the command and transmits lens data corresponding to the transmission request to the camera body 200.

[0018] In response to a command, the lens microcomputer 111 controls the aperture unit 103, the focus lens 105, the tilt lens 112, the shift lens 113, and the revolving drive unit 114. Thereby, an autofocus process that controls the light amount adjustment process and the focus adjustment operation by the aperture unit 103 and the focus lens 105 is performed.

[0019] Furthermore, the lens microcomputer 111 issues a command to the focus lens control unit 109 according to the operation amount of the operation ring 110 to move the focus lens 105 and controls the focus adjustment operation. The operation ring 110 may be configured to be able to operate a plurality of optical members according to settings.

[0020] The imaging optical system includes a field lens 101, a zoom lens 身102 that performs zooming, an aperture unit 103 that adjusts the light amount, an image shake correction lens 104, a focus lens 105 that performs focus adjustment, and a tilt lens 112 and a shift lens 113 for performing pitching imaging.

[0021] The zoom lens 102 is movable along the optical axis of the imaging optical system, which is shown by a dashed line in the figure. By operating a zoom operation ring connected to a zoom mechanism (not shown), the zoom lens 102 moves along the optical axis. This causes a change in the focal length of the imaging optical system as the zoom lens 102 moves. The zoom lens position detection unit 106 detects the position of the zoom lens 102 using a position detection sensor such as a variable resistor and outputs the position data to the lens microcontroller 111. The output position data is used by the lens microcontroller 111 for control such as zoom tracking operation.

[0022] The aperture unit 103 is equipped with sensors such as aperture blades and a Hall element. The state of the aperture blades is detected by the aforementioned sensors and output to the lens microcontroller 111. The aperture control unit 107 drives actuators such as a stepping motor or a voice coil motor in response to commands from the lens microcontroller 111. This allows the aperture unit 103 to adjust the amount of light.

[0023] The image shake correction lens 104 reduces image shake caused by camera shake, etc., by moving in a direction perpendicular to the optical axis of the imaging optical system. The image shake correction lens control unit 108 drives an anti-vibration actuator according to a command from the lens microcontroller 111 in response to shake detected by a shake sensor (not shown), such as a vibration gyroscope. This performs anti-vibration processing that controls the shift operation of the image shake correction lens 104.

[0024] The focus lens 105 is movable along the optical axis. Position data of the focus lens 105 detected using a position detection sensor such as a photointerrupter is output to the lens microcontroller 111. The focus lens control unit 109 adjusts the focus by driving an actuator such as a stepping motor to move the focus lens 105 based on commands from the lens microcontroller 111. The focus lens 105 also corrects image plane fluctuations caused by the magnification change of the zoom lens 102.

[0025] The tilt lens 112 is a first optical element that oscillates by a predetermined angle around an axis perpendicular to the optical axis of the imaging optical system. The tilt lens control unit 115 moves the tilt lens 112 in response to a command from the lens microcontroller 111. The position of the tilt lens 112 may be detected by a position detection unit (not shown). The shift lens 113 is a second optical element that moves in a direction perpendicular to the optical axis of the imaging optical system. The shift lens control unit 116 moves the shift lens 113 in response to a command from the lens microcontroller 111. The position of the shift lens 113 may be detected by a position detection unit (not shown). By performing a tilt drive to move the tilt lens 112, tilt imaging becomes possible, and the focal plane can be controlled. The shift lens 113 may also be moved during the tilt drive. Specifically, by moving the tilt lens 112, a tilt effect can be obtained that tilts the focal plane relative to the imaging plane of the image sensor 201. Furthermore, by moving the shift lens 113, a shift effect can be obtained that moves the shooting range. In this embodiment, the tilt lens 112 is configured to swing, but the present invention is not limited to this. The tilt lens 112 may be configured to move in a direction perpendicular to the optical axis of the imaging optical system, similar to the shift lens 113. In this embodiment, different lenses are moved to obtain the tilt effect and the shift effect, but the system may be configured so that the tilt effect and the shift effect can be obtained by moving a single lens.

[0026] The revolving drive unit (rotating member) 114 is configured to rotate around the optical axis of the imaging optical system, and by rotating, it rotates at least a part of the imaging optical system around the optical axis. The revolving control unit 117 moves the revolving drive unit 114 in response to a command from the lens microcontroller 111. The position of the revolving drive unit 114 may be detected by a position detection unit (not shown). By performing a revolving drive to move the revolving drive unit 114, the direction of movement of the tilt lens 112 and the shift lens 113 can be controlled.

[0027] In each of the following embodiments, a method for displaying information regarding the tilt drive and revolving drive on the display unit 204 will be described. [Examples]

[0028] Figure 2 is a flowchart showing an example of how to display information regarding tilt drive and revolving drive in this embodiment on the display unit 204. This flow starts when power is turned on to the camera body 200.

[0029] In step S201, camera 200 supplies power to interchangeable lens 100.

[0030] In step S202, the camera microcontroller 206 communicates with the lens microcontroller 111 via ID communication.

[0031] In step S203, the lens microcontroller 111 transmits information regarding the movable range of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 to the camera microcontroller 206. In other words, the lens microcontroller 111 functions as a transmitter.

[0032] In step S204, the camera microcontroller 206 uses the information received in step S204 to display information regarding the movable range of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 on the display unit 204.

[0033] In step S205, the camera microcontroller 206 determines whether the power is OFF. If it is determined that the power is ON, the process proceeds to step S206. If it is determined that the power is OFF, the process terminates.

[0034] In step S206, the camera microcontroller 206 displays the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 on the display unit 204. This allows the user to check the amount of movement (tilt-shift amount) of the tilt lens 112 and the shift lens 113, and the amount of movement of the revolving drive unit 114. In this embodiment, the camera microcontroller 206 acquires the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 in response to operations on the camera body 200. That is, in this embodiment, the tilt lens 112, the shift lens 113, and the revolving drive unit 114 are adjusted by performing operations on the camera body 200. However, the present invention is not limited thereto. The tilt lens 112, the shift lens 113, and the revolving drive unit 114 may be adjusted without performing operations on the camera body 200. At this time, the camera microcontroller 206 may receive the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 from the lens microcontroller 111.

[0035] Figure 3(a) shows an example of how the display unit 204 displays information regarding tilt drive and revolving drive. In this embodiment, the information regarding tilt drive includes information regarding the movable range of the tilt lens 112 and the shift lens 113, and the current positions of the tilt lens 112 and the shift lens 113. The information regarding revolving drive includes information regarding the movable range of the revolving drive unit 114, and the current position of the revolving drive unit 114. In Figure 3(a), the information regarding tilt drive and revolving drive is displayed as bars. Specifically, the bar next to "T" represents information regarding the movable range of the tilt lens 112, and the black display within the bar represents the current position of the tilt lens 112. Also, the bar next to "S" represents information regarding the movable range of the shift lens 113, and the black display within the bar represents the current position of the shift lens 112. Furthermore, the bar next to "R" represents information regarding the range of motion of the revolving drive unit 114, and the black display within the bar indicates the current position of the revolving drive unit 114. By displaying the above information, the user can adjust the tilt and revolving amount without taking their eyes off the subject.

[0036] Note that the display of information regarding tilt drive and revolving drive is not limited to the display shown in Figure 3(a). For example, the display of information regarding tilt drive and revolving drive may be numerical, as shown in Figure 3(b). In Figure 3(b), the information regarding tilt drive is the current position of the tilt lens 112 and the shift lens 113, and the information regarding revolving drive is the current position of the revolving drive unit 114. Specifically, the number next to "T" represents the current position of the tilt lens 112, the number next to "S" represents the current position of the shift lens 113, and the number next to "R" represents the current position of the revolving drive unit 114. In the display in Figure 3(b), the color of the numerical values ​​may change when the tilt lens 112, the shift lens 113, and the revolving drive unit 114 reach the limit position of their movable range. The limit position can be received from the lens microcontroller 111.

[0037] Figure 4 is a flowchart showing another example of how to display information regarding tilt drive and revolving drive in this embodiment on the display unit 204. This flow starts when power is turned on to the camera body 200.

[0038] Since the processes in steps S401 to S406 are the same as those in steps S201 to S206 in Figure 2, a detailed explanation will be omitted.

[0039] In step S407, the camera microcontroller 206 determines whether to save the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114. The camera microcontroller 206 may, for example, determine whether to save the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 in accordance with the user's instructions. If it is determined that the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 should be saved, the process proceeds to step S408; otherwise, the process returns to step S405. In this embodiment, it is determined whether to save the current positions of all of the tilt lens 112, the shift lens 113, and the revolving drive unit 114, but the present invention is not limited to this. For example, it may be determined whether to save the current position of each of the tilt lens 112, the shift lens 113, and the revolving drive unit 114.

[0040] In step S408, the camera microcontroller 206 stores the current positions of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 in a memory unit provided in at least one of the camera body 200 and the interchangeable lens 100. Steps S407 and S408 may be performed by the lens microcontroller 111.

[0041] In step S409, the camera microcontroller 206 displays the positions (storage positions) of the tilt lens 112, shift lens 113, and revolving drive unit 114, which were saved in step S408, on the display unit 204. If a storage position is already displayed, the current display should be cleared, and then the storage position saved in step S408 should be displayed.

[0042] Figure 5 shows an example of the display of information regarding tilt and revolving drive by the display unit 204. In addition to the display in Figure 3, Figure 5 also shows a display 501 indicating the stored position of the tilt lens 112, a display 502 indicating the stored position of the shift lens 113, and a display 503 indicating the stored position of the revolving drive unit 114. Displaying the stored positions makes it easy to move the tilt lens 112, shift lens 113, and revolving drive unit 114 to the desired positions.

[0043] As described above, according to the configuration of this embodiment, it is possible to check the amount of tilt on the display unit 204 provided on the camera body 200.

[0044] In this embodiment, information regarding tilt drive and revolving drive is displayed on the display unit 204, but as shown in Figure 3, information regarding the movement of the focus lens 105 may also be displayed on the display unit 204. In this case, the user may choose to display either the information regarding tilt drive and revolving drive or the information regarding the movement of the focus lens 105. Furthermore, if the focus lens 105 is adjusted, information regarding the movement of the focus lens 105 may be displayed, and if any component other than the focus lens 105 is adjusted, information regarding tilt drive and revolving drive may be displayed. The component other than the focus lens 105 is at least one of the tilt lens 112, shift lens 113, and revolving drive unit 114. Furthermore, the user may choose to display any of the information regarding the movement of the tilt lens 112, shift lens 113, revolving drive unit 114, and focus lens 105. Information regarding the movement of the adjusted component among the tilt lens 112, shift lens 113, revolving drive unit 114, and focus lens 105 may be displayed. [Examples]

[0045] Figure 6 is a flowchart showing an example of how to display information regarding tilt drive and revolving drive in this embodiment on the display unit 204. This flow starts when power is turned on to the camera body 200.

[0046] Since the processes in steps S601 to S603 are the same as those in steps S201 to S203 in Figure 2, a detailed explanation will be omitted.

[0047] In step S604, the camera microcontroller 206 determines whether the power is OFF. If it is determined that the power is ON, the process proceeds to step S605. If it is determined that the power is OFF, the process terminates.

[0048] In step S605, the camera microcontroller 206 acquires the amount of movement of the tilt lens 112, the shift lens 113, and the revolving drive unit 114. The camera microcontroller 206 may detect the amount of movement of the tilt lens 112, the shift lens 113, and the revolving drive unit 114, or it may acquire the amount of movement detected by the lens microcontroller 111.

[0049] In step S606, the camera microcontroller 206 determines whether any of the movement amounts obtained in step S605 is greater than or equal to a threshold. If it is determined that any of the movement amounts is greater than or equal to the threshold, i.e., that any of the tilt lens 112, shift lens 113, and revolving drive unit 114 has moved, the process proceeds to step S607; otherwise, the process proceeds to step S609.

[0050] Since the processes in steps S607 and S608 are the same as those in steps S204 and S206 in Figure 2, a detailed explanation will be omitted.

[0051] In step S609, the camera microcontroller 206 removes information regarding the movable range of the tilt lens 112, the shift lens 113, and the revolving drive unit 114 from the display unit 204.

[0052] In this embodiment, when the tilt lens 112, shift lens 113, and revolving drive unit 114 move, information regarding the movable range of the tilt lens 112, shift lens 113, and revolving drive unit 114 is displayed on the display unit 204. This improves the visibility of the display unit 204. [Examples]

[0053] Figure 7 is a flowchart showing an example of how to display information regarding tilt drive and revolving drive in this embodiment on the display unit 204. This flow starts when power is turned on to the camera body 200.

[0054] Since the processes in steps S701 and S702 are the same as those in steps S201 and S202 in Figure 2, a detailed explanation will be omitted.

[0055] In step S703, the camera microcontroller 206 determines whether the power is OFF. If it is determined that the power is ON, the process proceeds to step S704. If it is determined that the power is OFF, the process terminates.

[0056] In step S704, the lens microcontroller 111 detects the amount of movement of the tilt lens 112, the shift lens 113, and the revolving drive unit 114.

[0057] In step S705, the camera microcontroller 206 determines whether any of the movement amounts detected in step S704 is greater than or equal to a threshold. If it is determined that any of the movement amounts is greater than or equal to the threshold, i.e., that any of the tilt lens 112, shift lens 113, and revolving drive unit 114 has moved, the process proceeds to step S706; otherwise, it returns to step S703.

[0058] In step S706, the lens microcontroller 111 transmits information regarding the movable range of the member whose movement amount detected in step S702 is greater than or equal to a threshold, as well as its current position, to the camera microcontroller 206.

[0059] In step S707, the camera microcontroller 206 uses the information received in step S707 to display information regarding the range of motion and the current position of any of the components of the tilt lens 112, shift lens 113, and revolving drive unit 114.

[0060] In this embodiment, when the tilt lens 112, shift lens 113, and revolving drive unit 114 move, information regarding the range of motion of any of these components is displayed on the display unit 204. This improves the visibility of the display unit 204. Furthermore, even if the camera microcontroller 206 cannot detect the movement of the tilt lens 112 and shift lens 113, the user can still check the amount of tilt on the display unit 204.

[0061] This embodiment includes the following configuration. (Configuration 1) A lens device that can be attached to an imaging device, comprising an imaging optical system including at least one optical member that moves when tilt imaging is performed, and a transmitting unit that transmits information regarding the movable range of the at least one optical member to the imaging device. (Configuration 2) The lens device according to Configuration 1, further comprising a storage unit for storing the position of at least one optical element, wherein the transmission unit transmits the position stored in the storage unit to an imaging device. (Configuration 3) The lens device according to Configuration 1 or 2, further comprising a detection unit for detecting the position of at least one optical element, wherein the transmission unit transmits the position detected by the detection unit to the imaging device. (Configuration 4) The lens device according to any one of Configurations 1 to 3, characterized in that when the transmitting unit determines that at least one optical member has moved, it transmits information regarding the movable range of the at least one optical member to the imaging device. (Configuration 5) A lens device according to any one of Configurations 1 to 3, further comprising a rotating member that can rotate around the optical axis of the imaging optical system, wherein the transmitting unit transmits information regarding the movable range of the rotating member to the imaging device. (Configuration 6) The lens device according to claim 5, further comprising a storage unit for storing the position of the rotating member, wherein the transmission unit transmits the position stored in the storage unit to the imaging device. (Configuration 7) The lens device according to Configuration 5 or 6, further comprising a second detection unit for detecting the position of the rotating member, wherein the transmission unit transmits the position detected by the second detection unit to the imaging device. (Configuration 8) The lens device according to any one of Configurations 5 to 7, characterized in that the transmitting unit transmits information regarding the range of motion of the rotating member to the imaging device when the rotating member moves. (Configuration 9) The lens device according to any one of Configurations 1 to 8, characterized in that the at least one optical member includes a first optical member that moves to tilt the focal plane with respect to the imaging plane of the image sensor included in the imaging device. (Configuration 10) The lens device according to Configuration 9, characterized in that the at least one optical member includes a second optical member that moves to move the shooting range. (Configuration 11) An imaging device to which a lens device described in any one of Configurations 1 to 10 is attached, characterized in that it has a display unit for displaying information related to imaging. (Configuration 12) The imaging apparatus according to Configuration 11, further comprising a control unit that causes the display unit to display information relating to the movement of at least one optical element. (Configuration 13) The imaging apparatus according to Configuration 12, characterized in that when the control unit moves the at least one optical member, it causes the display unit to display information relating to the movement of the at least one optical member. (Configuration 14) The imaging apparatus according to Configuration 12 or 13, wherein the information relating to the movement of the at least one optical member includes information relating to the range of motion of the at least one optical member and the current position of the at least one optical member, and the information relating to the range of motion of the at least one optical member is displayed as a bar. (Configuration 15) The imaging apparatus according to Configuration 12 or 13, characterized in that the information relating to the movement of the at least one optical member includes the current position of the at least one optical member, and the current position of the at least one optical member is represented numerically. (Configuration 16) The imaging apparatus according to any one of Configurations 12 to 15, wherein the lens device includes a rotating member that can rotate around the optical axis of the imaging optical system, and the control unit causes the display unit to display information relating to the movement of the rotating member. (Configuration 17) The imaging apparatus according to Configuration 16, characterized in that when the rotating member moves, the control unit causes the display unit to display information relating to the movement of the rotating member. (Configuration 18) The imaging apparatus according to Configuration 16 or 17, characterized in that the information relating to the movement of the at least one optical member includes information relating to the range of motion of the at least one optical member and the current position of the at least one optical member, the information relating to the movement of the rotating member includes information relating to the range of motion of the rotating member and the current position of the rotating member, and the information relating to the range of motion of the at least one optical member and the information relating to the range of motion of the rotating member are displayed as bars. (Configuration 19) The imaging apparatus according to Configuration 16 or 17, characterized in that information relating to the movement of the at least one optical member includes the current position of the at least one optical member, and information relating to the movement of the rotating member includes the current position of the rotating member, and the current position of the at least one optical member and the current position of the rotating member are displayed numerically. (Configuration 20) The imaging apparatus according to any one of Configurations 16 to 19, wherein the lens device includes a focus lens that adjusts focus by moving, and the control unit causes the display unit to display information regarding the movement of the focus lens. (Configuration 21) The imaging apparatus according to Configuration 20, characterized in that the control unit causes the display unit to display either information relating to the movement of at least one optical member and information relating to the movement of the rotating member, or information relating to the movement of the focus lens. (Configuration 22) The imaging apparatus according to Configuration 20, characterized in that the control unit causes the display unit to display information regarding the movement of one of the at least one optical member, the rotating member, and the focusing lens that has been adjusted. (Configuration 23) The imaging apparatus according to Configuration 20, characterized in that the control unit causes the display unit to display information relating to the movement of any of the at least one optical member, the rotating member, and the focusing lens. (Configuration 24) The imaging apparatus according to Configuration 20, characterized in that the control unit causes the display unit to display information regarding the movement of the adjusted member among the at least one optical member, the rotating member, and the focusing lens.

[0062] 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]

[0063] 100 interchangeable lenses (lens assembly) 111 Lens Microcomputer (Transmitter) 112 Tilt lens (optical component) 113 Shift lens (optical component) 200 Camera body (imaging device)

Claims

1. An optical device that can be attached to an imaging device, an optical member that is movable in a direction perpendicular to the optical axis or around an axis perpendicular to the optical axis during tilt imaging; a transmitting section for transmitting information regarding a movable range of the optical member to the imaging device.

2. The optical device as described in Claim 1, characterized in that the transmitting unit transmits information regarding the position of the optical element that has been previously stored to the imaging device.

3. A first detection unit that detects the position of the optical member, 3. The optical device according to claim 1, wherein the transmitting section transmits an output from the first detecting section to the imaging device.

4. 3. The optical device according to claim 1, wherein the transmitting section transmits information regarding a movable range of the optical member to the imaging device when the optical member moves.

5. Further comprising a rotating member rotatable around the optical axis, 3. The optical device according to claim 1, wherein the transmitting section transmits information regarding a movable range of the rotating member to the imaging device.

6. The optical device as described in Claim 5, characterized in that the transmitting unit transmits information regarding the position of the rotating member that has been previously stored to the imaging device.

7. A second detection unit that detects a position of the rotating member, The optical device according to claim 5 , wherein the transmitting section transmits the output from the second detecting section to the imaging device.

8. 6. The optical device according to claim 5, wherein the transmission section transmits information regarding a movable range of the rotating member to the imaging device when the rotating member moves.

9. 3. The optical device according to claim 1, wherein the optical member is adapted to move to tilt a focal plane with respect to an imaging plane of the imaging device.

10. 3. The optical device according to claim 1, wherein the optical member is movable to change a photographing range.

11. An imaging device to which the optical device according to claim 1 is attached, An imaging device comprising a display unit for displaying information.

12. The imaging device according to claim 11, characterized in that the display unit displays information regarding the movable range of the optical element.

13. The imaging apparatus according to claim 12 , wherein the display unit displays information regarding a movable range of the optical member when the optical member is moved.

14. The imaging apparatus according to claim 11 , wherein the display unit displays information about a current position of the optical member together with information about a movable range of the optical member.

15. 15. The imaging device according to claim 14, wherein the display unit displays information regarding a movable range of the optical member as a bar, and displays information regarding a current position of the optical member as a position on the bar.

16. the optical device includes a rotating member that is rotatable about an optical axis; 14. The imaging apparatus according to claim 12, wherein the display unit displays information regarding a movable range of the rotating member on the display unit.

17. 17. The imaging apparatus according to claim 16, wherein the display unit displays information regarding a movable range of the rotation member when the rotation member moves.

18. 17. The imaging apparatus according to claim 16, wherein the display unit displays information about a current position of the rotary member together with information about a movable range of the rotary member.

19. 19. The imaging device according to claim 18, wherein the display unit displays information regarding a movable range of the rotating member as a bar, and displays information regarding a current position of the rotating member as a position on the bar.

20. The optical device includes a focus member that is movable during focusing, 12. The imaging apparatus according to claim 11, wherein the display unit selectively displays one of information relating to a movable range of the optical member and information relating to movement of the focus member.

Images