JP2012220865A - Optical apparatus, control program, and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect an optical member in a case of falling of an optical apparatus.SOLUTION: The optical apparatus includes: a body; an optical member supported movably with respect to the body; a drive section for driving the optical member with respect to the body; a falling detecting section for detecting the falling; and a regulation member for, when the falling is detected by the falling detecting section, being mechanically engaged with the optical member and regulating the moving of the optical member with respect to the body. In the optical apparatus, when the falling detecting section detects vibration of the body, the drive section drives the optical member so as to damp the vibration.

Description

  The present invention relates to an optical apparatus, a control program, and a control method.

It has been proposed to prevent a lens collision by driving an actuator when a fall is detected (see Patent Document 1).
Patent Document 1 Japanese Patent Application Laid-Open No. 2008-039458

  However, an actuator provided with an emphasis on transient characteristics may not be able to support the lens against a drop impact.

  As a first aspect of the present invention, a main body, an optical member supported so as to be movable with respect to the main body, a drive unit that drives the optical member with respect to the main body, a fall detection unit that detects a fall, and a fall detection unit An optical apparatus is provided that includes a regulating member that mechanically engages the optical member and regulates the movement of the optical member relative to the main body when a fall due to the above is detected.

  As a second aspect of the present invention, a main body, a plurality of optical members housed in the main body, a drive unit that drives at least one of the plurality of optical members with respect to the main body, and a drop detection that detects a fall And an optical device including a control unit that controls the drive unit to hold at least one optical member at a position spaced apart from the other optical members when a fall is detected by the fall detection unit.

  As a third aspect of the present invention, a main body, an optical member supported so as to be movable with respect to the main body, a drive unit that drives the optical member with respect to the main body, a fall detection unit that detects the fall of the main body, and an optical A control method for controlling an optical device comprising a regulating member that mechanically engages a member and regulates movement of the optical member relative to the main body, and when the fall detection unit detects the fall of the main body, A control method for restricting movement of the optical member is provided.

  As a fourth aspect of the present invention, a main body, an optical member supported so as to be movable with respect to the main body, a drive unit that drives the optical member with respect to the main body, a fall detection unit that detects a fall of the main body, and an optical A control program for controlling an optical device that includes a restricting member that mechanically engages with a member and restricts movement of the optical member relative to the main body, and when the drop detection unit detects a fall of the main body, A control program for restricting movement of the optical member is provided.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. Sub-combinations of these feature groups can also be an invention.

1 is a schematic cross-sectional view of an imaging apparatus 100. FIG. 2 is a partial cross-sectional view of a lens unit 200. FIG. It is sectional drawing of the vibration isolator 270. FIG. 7 is a partial cross-sectional view of a vibration isolator 270. FIG. 7 is a partial cross-sectional view of a vibration isolator 270. FIG. 1 is a block diagram of an imaging apparatus 100. FIG. It is a flowchart which shows a control procedure. It is a flowchart which shows a control procedure.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a schematic cross-sectional view of the imaging apparatus 100. The imaging apparatus 100 includes a lens unit 200 and a camera body 300.

  In the following description, in the lens unit 200, the object side is described as “front side” and the image side is described as “rear side”. In the camera body 300, the side on which the lens unit 200 is mounted is referred to as “front side”, and the side on the opposite side where the viewfinder 350, the display unit 340, and the like are disposed is referred to as “rear side” or “rear side”. .

  The lens unit 200 includes a fixed barrel 210, a lens barrel CPU 250, a plurality of lenses 220, 230, and 240, a lens mount 260, a vibration isolator 270, and a focusing actuator 280. The plurality of lenses 220, 230, and 240 are arranged on a common optical axis X to form an optical system. Each of the lenses 220, 230, and 240 may be a lens group in which a plurality of lenses are superimposed.

  By moving a part of the plurality of lenses 220, 230, and 240 in the direction of the optical axis X, the magnification and the focal position of the optical system change. When focusing the optical system, a part of the lenses 220, 230, and 240 is moved along the optical axis X by the focusing actuator 280.

  The focusing actuator 280 may be provided with other driving methods such as an ultrasonic motor and a voice coil motor. In addition, some of the other lenses 220, 230, and 240 may have a mechanism that is manually moved by an operation such as a cam structure or a slide structure.

  One end of the fixed barrel 210 is coupled to the body mount 360 of the camera body 300 via the lens mount 260. The coupling between the lens mount 260 and the body mount 360 can be released by a certain operation. As a result, another lens unit 200 having a lens mount 260 of the same standard can be attached to the camera body 300.

  The lens barrel CPU 250 controls each part of the lens unit 200 and also communicates with the camera body 300. Accordingly, the lens unit 200 attached to the camera body 300 operates in cooperation with the camera body 300.

  The vibration isolator 270 includes a vibration isolating actuator 272, a displacement sensor 274, and a locking ring 276. The anti-vibration actuator 272 moves the lens 240 in two directions intersecting the optical axis X. Thereby, the lens 240 is displaced two-dimensionally in a plane intersecting the optical axis X.

  When the lens 240 moves in the direction intersecting the optical axis X in the optical system of the lens unit 200, the position of the subject image formed by the optical system of the lens unit 200 also moves in the direction intersecting the optical axis X. Note that a voice coil motor can be used as the vibration-proof actuator 272.

  The displacement sensor 274 includes a gyro sensor that detects an angular velocity of the lens unit 200 in the yaw direction and the pitch direction. Based on the angular velocity in the yaw direction and pitch direction of the lens unit 200 detected by the displacement sensor 274, the lens barrel CPU 250 calculates the deflection angle of the lens unit 200. Further, the lens barrel CPU 250 drives the image stabilization actuator 272 so as to cancel the displacement of the subject image due to the calculated shake angle.

  The vibration isolator 270 repeatedly executes a series of processes as described above at intervals of about 10 Hz to several tens Hz. As a result, vibration generated in the lens unit 200 due to camera shake or the like is compensated, and blurring of the subject image formed by the lens unit 200 is prevented. Note that the displacement sensor 274 or a part thereof may be disposed on the camera body 300.

  The camera body 300 includes a mirror unit 370 disposed behind a body mount 360 coupled to the lens unit 200. A focusing optical system 380 is disposed below the mirror unit 370. Further, a focusing screen 352 is disposed above the mirror unit 370.

  A pentaprism 354 is disposed further above the focusing screen 352, and a finder optical system 356 is disposed behind the pentaprism 354. The rear end of the viewfinder optical system 356 is exposed as a viewfinder 350 on the back surface of the camera body 300.

  Behind the mirror unit 370, a shutter device 400, a low-pass filter 332, an image sensor 330, a main substrate 320, and a display unit 340 are sequentially arranged. A display unit 340 formed by a liquid crystal display panel or the like appears on the back surface of the camera body 300. A part of electronic components such as the main body CPU 322 and the image processing circuit 324 is mounted on the main board 320.

  The mirror unit 370 includes a main mirror 371 and a sub mirror 374. The main mirror 371 is supported by a main mirror holding frame 372 that is pivotally supported by a main mirror rotating shaft 373. The sub mirror 374 is supported by a sub mirror holding frame 375 supported by a sub mirror rotating shaft 376. The sub mirror holding frame 375 rotates with respect to the main mirror holding frame 372. Therefore, when the main mirror holding frame 372 rotates, the sub mirror holding frame 375 is also displaced together with the main mirror holding frame 372.

  When the front end of the main mirror holding frame 372 is lowered, the main mirror 371 is positioned obliquely on the incident light beam incident from the lens unit 200. When the main mirror holding frame 372 rises, the main mirror 371 retracts to a position that avoids the incident light beam.

  When the main mirror 371 is positioned on the incident light beam, the incident light beam incident through the lens unit 200 is reflected by the main mirror 371 and guided to the focusing screen 352. Since the focusing screen 352 is disposed at a position conjugate with the optical system of the lens unit 200, a subject image formed by the optical system is connected.

  The image formed on the focusing screen 352 is observed from the viewfinder 350 through the pentaprism 354 and the viewfinder optical system 356. Since the luminous flux of the subject image passes through the pentaprism 354, the subject image on the focusing screen 352 is observed as an erect image from the viewfinder 350.

  The photometric sensor 390 is disposed above the finder optical system 356 and receives a part of the incident light beam branched by the pentaprism 354. The photometric sensor 390 detects the subject brightness and causes the main body CPU 322 to calculate an exposure condition which is a part of the photographing condition. In addition, a part of the incident light beam is measured for each of the three primary colors to be used for calculating the auto white balance.

  The main mirror 371 has a half mirror region that transmits a part of the incident incident light beam. The sub mirror 374 reflects a part of the incident light beam incident from the half mirror region toward the focusing optical system 380. The focusing optical system 380 guides a part of the incident incident light beam to the focus detection sensor 382. Accordingly, the main body CPU 322 determines a target position of the lens 230 when the optical system of the lens unit 200 is focused.

  When the release button is half-pressed in the imaging apparatus 100 as described above, the focus detection sensor 382 and the photometric sensor 390 are enabled, and the subject image can be captured under appropriate imaging conditions. Next, when the release button is fully pressed, the main mirror 371 and the sub mirror 374 move to the retracted position, and the shutter device 400 opens. Thereby, the incident light beam incident from the lens unit 200 passes through the low-pass filter 332 and enters the image sensor 330.

  The image sensor 330 is formed by a photoelectric conversion element such as a CCD sensor (Charge Coupled Device) or a CMOS sensor (Complementary Metal Oxide Semiconductor), and converts the received subject image into an electrical signal and outputs the electrical signal. The electrical signal output from the image sensor 330 is converted into captured image data by the image processing circuit 324.

  FIG. 2 is a partial cross-sectional view of the lens unit 200. Elements that are the same as those in FIG. 1 are given the same reference numerals, and redundant descriptions are omitted.

  As illustrated, the lens 230 that moves when the optical system is focused in the lens unit 200 is disposed immediately after the lens 220 that is the front lens. The lens unit 200 may further include other lenses 232 and 234. Furthermore, each of the lenses 220, 230, 232, 234, and 240 may be a lens group that includes a plurality of optical components.

  Needless to say, such an arrangement varies depending on the design specifications of the individual lens units 200. However, in the lens unit 200 including the plurality of lenses 220, 230, 232, 234, 240, some of the lenses 220, 230, 232, 234, 240 are often arranged close to each other. Furthermore, the camera may move closer when it moves by focusing, zooming, or switching to the close-up mode.

  FIG. 3 is a sectional view of the vibration isolator 270 alone. Elements common to FIGS. 1 and 2 are given the same reference numerals. The vibration isolator 270 includes a lens 240, a holding frame 242, a locking actuator 271, an elastic member 275, a locking ring 276, and a fixing member 278.

  The lens 240 is held by the holding frame 242. The holding frame 242 is supported from a fixing member 278 fixed to the fixed cylinder 210.

  The fixing member 278 has a protrusion 279 that comes into contact with one surface of the holding frame 242. In addition, an elastic member 275 is disposed between the rear surface of the surface that contacts the protrusion 279 in the holding frame 242 and the fixing member 278. Therefore, the holding frame 242 is pressed toward the protrusion 279 by the elastic member 275.

  However, since the contact area between the holding frame 242 and the protrusion 279 is small, it is not hindered that the holding frame 242 is displaced in the direction orthogonal to the optical axis X. Therefore, when the anti-vibration actuator 272 is operated, the holding frame 242 moves smoothly in the direction intersecting the optical axis X.

  When the holding frame 242 moves, the lens 240 held by the holding frame 242 also moves in a direction intersecting the optical axis X. Thereby, the subject image formed by the optical system of the lens unit 200 moves in the direction intersecting the optical axis X.

  The holding frame 242 has a locking groove 243 formed in an annular shape around the lens 240. The locking groove 243 has a V-shaped cross section formed by a pair of inclined surfaces.

  The locking ring 276 meshes with a screw formed inside the fixing member 278 and is supported from the fixing member 278 so as to be rotatable around the optical axis X. The locking actuator 271 meshes with a part of the outer periphery of the locking ring 276 and rotates the locking ring 276 around the optical axis X.

  When the locking ring 276 is rotationally driven by the locking actuator 271, the locking ring 276 rotates inside the fixing member 278 and is displaced in the optical axis X direction. As a result, the locking ring 276 approaches or separates from the holding frame 242. The locking ring 276 has a protrusion 277 that protrudes in a direction parallel to the optical axis X on the surface facing the holding frame 242.

  FIG. 4 is a partially enlarged cross-sectional view showing the vicinity of the protrusion 277 of the locking ring 276 and the locking groove 243 of the holding frame 242 in an enlarged manner. Elements that are the same as those in FIG. 3 are given the same reference numerals, and redundant descriptions are omitted.

  In the state shown in the drawing, the protrusion 277 is at a position facing the locking groove 243. However, the holding frame 242 is displaced in the radial direction of the lens 240, and the center of the protrusion 277 and the center of the locking groove 243 are shifted in the radial direction of the lens 240. In the state shown in the figure, the inner surface of the locking groove 243 and the protrusion 277 are separated from each other.

  FIG. 5 is a partial enlarged cross-sectional view of the vibration isolator 270. Elements that are the same as those in FIG. 3 are given the same reference numerals, and redundant descriptions are omitted.

  FIG. 5 shows a state in which the locking ring 276 is driven to rotate and rotates around the optical axis X, and the locking ring 276 is retracted inside the fixing member 278. As a result, the locking ring 276 approaches toward the holding frame 242. Further, the protrusion 277 is at a position different from that in FIG. 4 in the circumferential direction of the lens 240.

  Thereby, the protrusion 277 is in contact with the pair of inner walls of the locking groove 243. Since the back surface of the holding frame 242 is in contact with the protrusion 279 of the fixing member 278, it cannot be retracted. Therefore, the holding frame 242 is fixed between the pair of protrusions 277 and 279.

  Further, in the process of reaching the illustrated state, when one of the pair of inner walls of the locking groove 243 comes into contact with the protrusion 277, the holding frame 242 has the center of the protrusion 277 and the center of the locking groove 243 aligned. Moved in the direction. Accordingly, the center of the lens 240 is positioned on the optical axis X in a state where the protrusions 277 are in contact with both of the pair of inner walls of the locking groove 243.

  As described above, in the vibration isolator 270, the locking ring 276 has a returning action for returning the lens 240 to the center position and a movement restricting action for fixing the holding frame 242 returned to the center position. When the holding frame 242 is fixed by the action of the locking ring 276, the holding frame 242 is not displaced even when an external impact is applied to the lens unit 200. Therefore, the impact resistance of the vibration isolator 270 is improved.

  FIG. 6 is a block diagram of the imaging apparatus 100. The imaging device 100 is formed by a main body CPU 322 and elements connected directly or indirectly to the main body CPU 322.

  A system memory 110 and a main memory 112 are connected to the main body CPU 322. The system memory 110 includes at least one of a nonvolatile recording medium and a read-only recording medium, and holds firmware executed by the main body CPU 322 without supplying power. The main memory 112 includes a RAM and is used as a work area for the main body CPU 322.

  The imaging unit 120 is also connected to the main body CPU 322. The image capturing unit 120 includes an image sensor driving unit 122, an image sensor 330, an analog / digital conversion circuit 124, and an image processing circuit 324. The image sensor 330 is driven at a specific timing by the image sensor drive unit 122, photoelectrically converts the subject image, and outputs an image signal.

  The image signal output from the image sensor 330 is discretized by the analog-digital conversion circuit 124 and converted into image data by the image processing circuit 324. The image processing circuit 324 adjusts white balance, sharpness, gamma, gradation correction, compression, and the like of the image in the process of generating image data.

  The image data generated in the image processing circuit 324 is stored and saved in the secondary storage medium 130. As the secondary storage medium 130, a medium having a nonvolatile storage element such as a flash memory card is used. At least a part of the secondary storage medium 130 can be detached from the camera body 300 and replaced.

  In addition to displaying the captured image, the display unit 340 displays the subject image formed through the lens unit 200 as an image in the live view mode, the preview mode, or the like. In some cases, setting values designated by the user are displayed.

  The main body CPU 322 is connected to a lens barrel CPU 250, a focus detection sensor 382, and a photometric sensor 390. The focus detection sensor 382 detects the in-focus position from the subject image formed by the optical system of the lens unit 200, and instructs the lens barrel CPU 250 to form an incident light beam on the image sensor 330. The photometric sensor 390 detects a subject brightness by receiving a part of the incident light beam, and calculates an appropriate aperture, shutter speed, and the like.

  On the other hand, in the lens unit 200, the output of the displacement sensor 274 is connected to the lens barrel CPU 250. The lens barrel CPU 250 controls the focusing actuator driving unit 252, the anti-vibration actuator driving unit 254, and the locking actuator driving unit 256. Further, the lens barrel CPU 250 communicates with the main body CPU 322 and cooperates with the main body CPU 322.

  The focusing actuator driving unit 252 supplies a driving current to the focusing actuator 280 to activate the lens 230 and the like in the optical axis X direction. Further, the amount of movement of the lens 230 is also managed by referring to an encoder that works in conjunction with the lens 230.

  The anti-vibration actuator driving unit 254 supplies a drive current to the anti-vibration actuator 272 and moves the lens 240 to cancel the displacement of the lens unit 200. Further, the latching actuator driving unit 256 supplies a driving current to the latching actuator 271 to fix or release the holding frame 242.

  FIG. 7 is a flowchart showing a part of the control procedure of the locking actuator driving unit 256 in the lens unit 200. When the power of the imaging device 100 including the lens unit 200 and the camera body 300 is turned on, the lens barrel CPU 250 checks whether or not the imaging device 100 is set to the shooting mode (step S101).

  When the imaging device 100 is not set to the shooting mode (step S101: NO), the lens unit 200 does not operate, and the lens barrel CPU 250 waits. In this case, the locking ring 276 locks the holding frame 242. Therefore, the vibration isolator 270 has a high impact resistance.

  On the other hand, when the imaging apparatus 100 is set to the shooting mode (step S101: YES), the lens barrel CPU 250 monitors whether or not the release button of the camera body 300 is pressed, and the release button is in a half-pressed state. It waits until it becomes (step S102: NO). When it is notified that the release button has been half-pressed (step S102: YES), the lens barrel CPU 250 instructs the locking actuator driving unit 256 to reversely rotate the locking actuator 271 so that the locking ring 276 is used. The retaining frame 242 is unlocked (step S103).

  Subsequently, the lens barrel CPU 250 activates the anti-vibration actuator driving unit 254 while referring to the output of the displacement sensor 274, and starts anti-vibration control in which the anti-vibration actuator 272 moves the holding frame 242 (step S104). Next, the lens barrel CPU 250 continues the image stabilization control until the release button is fully pressed (step S105: NO). As a result, the imaging apparatus 100 can perform imaging under the image stabilization control.

  When the release button is half-pressed, the lens barrel CPU 250 acquires the detection result of the focus detection sensor 382 through communication with the main body CPU 322 and operates the focusing actuator 280 through the focusing actuator driving unit 252. Thereby, the optical system of the lens unit 200 is focused.

  When the release button is fully pressed (step S105: YES), the lens barrel CPU 250 is notified from the main body CPU 322. The lens barrel CPU 250 that has detected the completion of photographing measures a predetermined waiting time from the completion of photographing (step S106: NO), and when the waiting time has elapsed (step S106: YES), issues an instruction to the locking actuator driving unit 256. Then, the locking actuator 271 is operated. Thereby, the holding frame 242 is again fixed by the locking ring 276 (step S107).

  Thus, the lens barrel CPU 250 to which the holding frame 242 is fixed checks whether or not the power supply of the imaging apparatus 100 is shut off (step S108). When the power of the imaging apparatus 100 is still turned on (step S108: NO), and the operation state of the imaging apparatus 100 continues, the lens barrel CPU 250 returns to step S101 again, and the imaging mode is set in the imaging apparatus 100. Find out if it is. On the other hand, when the power supply of the imaging apparatus 100 is cut off (step S108: YES), the control is finished while the holding frame 242 is fixed.

  FIG. 8 is a flowchart showing another control procedure by the lens barrel CPU 250. The illustrated control procedure is executed in parallel with the control shown in FIG.

  When the imaging apparatus 100 is in an operating state, the lens barrel CPU 250 continues to monitor whether or not the holding frame 242 is released from being fixed by the locking ring 276 (step S201: NO). When the holding frame 242 is released from the locking ring 276 and is movable (step S201: YES), the lens barrel CPU 250 determines the lens unit from the output of the displacement sensor 274 that is referred to for image stabilization control. It continues to monitor whether or not 200 is falling (step S202: NO).

  When the drop of the lens unit 200 is detected (step S202: YES), the lens barrel CPU 250 gives priority to the command to the focusing actuator driving unit 252 and the anti-vibration actuator driving unit 254 to the locking actuator driving unit 256. Instructing to fix the holding frame 242 immediately (step S203).

  As a result, the holding frame 242 is fixed to the fixing member 278 by the locking ring 276 and falls in a state of high impact resistance. Therefore, when the lens 240 collides with the ground, the floor, etc., the lens 240 is prevented from colliding with other members and being damaged.

  Note that the drop of the lens unit 200 can be detected from the output of the displacement sensor 274. That is, when the vibration isolator 270 is operating, the output of the displacement sensor 274 changes every moment. Further, the angular velocity detected by the displacement sensor 274 changes independently in the yaw direction and the pitch direction.

  However, when the lens unit 200 and the imaging device 100 including the lens unit 200 are dropped, both angular velocities continuously swing in one direction. Therefore, when an angular velocity equal to or higher than a predetermined threshold value is continuously detected, it can be determined whether or not a fall has occurred based on a threshold value set in advance for the continuous time.

  The lens barrel CPU 250 that has detected the drop instructs the focusing actuator 280 to move the lens 230 away from the lens 220 (step S204). This prevents the lenses 220 and 230 from coming into contact with each other due to a drop impact.

  As described with reference to FIG. 7, after the standby time has elapsed in step S <b> 106, the holding frame 242 is locked and the lens 240 is fixed. Therefore, the time from the detection of the fall (step S202) until the fixing of the lens 240 and the separation of the lenses 220 and 230 (steps S203 and S204) as described above is shorter than the standby time in step S106.

  When the drop of the lens unit 200 is detected as described above, the control by the lens barrel CPU 250 ends at step S204. Therefore, the holding frame 242 remains fixed. Further, the lens 230 is separated from the lens 220 and is not focused. This is maintained until the entire imaging apparatus 100 or the lens unit 200 is reset, such as when the imaging apparatus 100 is turned on again.

  As described above, the lens unit 200 in the imaging apparatus 100 mechanically fixes the lens 240 of the vibration isolator 270 when the fall is detected, and widens the distance between the lenses 220 and 230 to improve the fall resistance. ing. In the above example, it is described that the lens barrel CPU 250 controls a series of controls (steps S201 to S204) according to FIG. 8, but the main body CPU 322 may execute part or all of these processes.

  Further, by providing the control procedure as described above as software through a recording medium or a communication line, it is possible to execute a series of processing in existing hardware including the image stabilizer 270.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 100 Image pick-up device, 110 System memory, 112 Main memory, 120 Image pick-up part, 122 Image pick-up element drive part, 124 Analog-digital conversion circuit, 130 Secondary storage medium, 200 Lens unit, 210 Fixed cylinder, 220, 230, 232, 234, 240 lens, 242 holding frame, 243 locking groove, 250 lens barrel CPU, 252 focusing actuator driving unit, 254 anti-vibration actuator driving unit, 256 locking actuator driving unit, 260 lens mount, 270 anti-vibration device, 271 locking Actuator, 272 Vibration-proof actuator, 274 Displacement sensor, 275 Elastic member, 276 Locking ring, 277, 279 Projection, 278 Fixing member, 280 Focusing actuator, 300 Camera body, 320 Main board, 322 Main body CPU, 324 Image processing circuit, 330 imaging device, 332 low-pass filter, 340 display unit, 350 finder, 352 focusing screen, 354 pentaprism, 356 finder optical system, 360 body mount, 370 mirror unit, 371 main mirror, 372 main mirror holding frame, 373 Main mirror rotation axis, 374 sub mirror, 375 sub mirror holding frame, 376 sub mirror rotation axis, 380 focusing optical system, 382 focus detection sensor, 390 photometry sensor, 400 shutter device

Claims (9)

The body,
An optical member supported movably with respect to the main body;
A drive unit for driving the optical member with respect to the main body;
A fall detection unit for detecting the fall of the main body;
An optical apparatus comprising: a regulating member that mechanically engages with the optical member and regulates movement of the optical member relative to the main body when the fall detection unit detects the fall of the main body.   The optical device according to claim 1, wherein the drive unit drives the optical member to cancel the vibration when the drop detection unit detects the vibration of the main body.   The optical device according to claim 2, wherein the restricting member restricts movement by engaging the optical member with an engaging member that mechanically engages the optical member during a non-operation waiting period of the optical member.   The optical device according to claim 3, wherein the locking member locks the optical member after moving the optical member toward the center of a movable range.   The said restriction | limiting part latches the said optical member earlier than the said optical member is latched in the said non-operation waiting period, when the said fall detection part detects the fall of the said main body. 4. The optical apparatus according to 4. Further comprising another optical member different from the optical member,
The said drive part drives the said optical member so that the said optical member and said another optical member may mutually be spaced apart, when the said fall detection part detects the fall of the said main body. The optical apparatus as described in any one. The body,
A plurality of optical members housed in the body;
A drive unit that drives at least one of the plurality of optical members with respect to the main body;
A drop detection unit for detecting a drop;
An optical apparatus comprising: a control unit that controls the drive unit so as to hold the at least one optical member at a position spaced apart from other optical members when a fall by the fall detection unit is detected. The body,
An optical member supported movably with respect to the main body;
A drive unit for driving the optical member with respect to the main body;
A fall detection unit for detecting the fall of the main body;
A control method for controlling an optical device comprising a restriction member that mechanically engages with the optical member and restricts movement of the optical member relative to the main body,
A control method for causing the restriction member to restrict the movement of the optical member when the fall detection unit detects the fall of the main body. The body,
An optical member supported movably with respect to the main body;
A drive unit for driving the optical member with respect to the main body;
A fall detection unit for detecting the fall of the main body;
A control program for controlling an optical device comprising a regulating member that mechanically engages with the optical member and regulates movement of the optical member relative to the main body,
A control program for causing the restriction member to restrict movement of the optical member when the fall detection unit detects the fall of the main body.

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