JP2006293036A - Optical equipment, and foreign matter removing method for optical equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem, wherein there is the possibility that a foreign matter once removed tends to adhere to the surface of the cover glass of a solid-state imaging element or to the outermost surface of dust-proof structure again, if the attitude of a camera is directed upward, when removing the foreign matter inside the camera. <P>SOLUTION: When removing the foreign matter in the camera in a cleaning mode, the attitude of the camera is kept at a predetermined attitude, whereby the foreign matter that fell off from the surface of an optical element is surely recovered. Even when an accessory device for automatically performing cleaning used, the foreign matter inside the camera is surely removed and is recovered, without having to block the operation of the accessory device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical apparatus such as a digital camera, and more specifically, a foreign matter attached to the surface of an optical member disposed in or near the focal plane, such as a solid-state imaging device, an optical filter, or a lens incorporated in the optical apparatus. It is related with the technology to remove.

  Conventionally, it is known that when a foreign substance such as dust is present in the vicinity of the focal plane of a taking lens of an interchangeable lens type digital single-lens reflex camera, the shadow of the foreign substance is reflected on the solid-state imaging device. It is thought that such foreign matter may enter from the outside during lens replacement, or may generate fine wear powder such as resin, which is a structural member, with the operation of the shutter and mirror inside the camera. ing. An optical filter such as an infrared cut filter or an optical low-pass filter (hereinafter abbreviated as LPF) in which foreign matter generated due to such a cause is disposed on the entire surface of the cover glass for protecting the solid-state image sensor and the cover glass in particular. If it got in between, the camera had to be disassembled to remove the foreign material. For this reason, it has been extremely effective to provide a sealed structure so that foreign matter does not enter between the cover glass of the solid-state imaging device and the optical filter. However, when a foreign object adheres to the surface opposite to the opposite side of the solid-state image sensor of the optical filter, if it is in the vicinity of the focal plane, the foreign object will be reflected in the solid-state image sensor. The problem remains.

  In order to solve the above problem, there is one that cleans the cover glass surface of the solid-state imaging device with a wiper (see Patent Document 1). When the camera is configured as described in Patent Document 1, foreign matter adhered to the cover glass surface of the solid-state image sensor or the outermost surface of the dust-proof structure (for example, the optical filter surface) without removing the lens and without disassembling the camera. Can be removed. However, the surface of the solid-state image sensor cover glass and the outermost surface of the dust-proof structure are rubbed with a wiper, so the surface of the solid-state image sensor cover glass and the outermost surface of the dust-proof structure can be scratched in the case of hard foreign objects such as metal powder. There is sex. In addition, since the foreign matter removed by the wiper floats in the camera, the foreign matter once removed may be reattached to the cover glass surface of the solid-state image sensor or the outermost surface of the dust-proof structure.

In order to eliminate such problems, the dust-proof member is vibrated to remove foreign matter adhering to the surface of the dust-proof member, and the removed foreign matter is not re-attached to the surface of the dust-proof member. (Patent Document 2). That is, by removing the foreign matter from the surface of the dust-proof member without damaging the surface of the dust-proof member by oscillating the dust-proof member, and further providing the foreign-material receiving portion at the peripheral portion of the dust-proof member, the removed foreign matter It has become possible to prevent re-adhesion. However, since the dust receiver is provided closer to the bottom of the dust-proof member, the dust-proof member is vibrated by vibration unless the camera is in the normal position, i.e., the position where the dust receiver is at the bottom when the camera is viewed from the front. Foreign matter removed from the surface is less likely to enter the dust receiver. For this reason, there is a problem that the reattachment of the removed foreign matter cannot be completely prevented. If the dust receiving part is arranged over the entire periphery of the dust-proof member, it is possible to prevent reattachment of foreign matter regardless of the orientation of the camera, but in that case, a space for providing the dust receiving part is required, so the entire camera There may be a problem that leads to an increase in size.
JP 2003-005254 A (page 8, FIGS. 1 and 9) JP 2003-338968 A (page 13, FIG. 14 and FIG. 15)

  However, when removing foreign matter, it may not be possible to properly remove foreign matter depending on the attitude of the optical device itself, whether the removal device built in the optical device is driven or removed by an accessory device. There was a problem. For example, when the optical device is oriented in an oblique direction, the dust removal unit of the attached accessory device may suddenly move back and forth, damaging the members in the camera, or by driving the built-in removal device, There is a risk that it will adhere to the vicinity again.

  The present invention has been made in view of the above-described problems, and its object is to prevent reattachment of foreign matter when removing foreign matter attached to the cover glass surface or the optical filter surface of a solid-state imaging device, or an optical device. An object of the present invention is to provide an optical device that does not damage internal members and a foreign matter removing method in the optical device.

  The above features are achieved by a combination of the features described in the independent claims, and the dependent claims define merely advantageous embodiments of the invention.

An optical apparatus according to one embodiment of the present invention has the following configuration. That is,
An optical device having an imaging unit that converts an optical image of a subject into an electrical signal, and an optical element disposed on a front surface of the imaging unit,
Removing means for removing foreign matter adhering to the surface of the optical element;
Attitude detection means for detecting the attitude of the optical device;
And a control unit that performs control related to a foreign substance removal operation by the removal unit in accordance with a detection result of the posture detection unit.

An optical apparatus according to one embodiment of the present invention has the following configuration. That is,
An optical device having an imaging unit that converts an optical image of a subject into an electrical signal, and an optical element disposed on a front surface of the imaging unit,
Attitude detection means for detecting the attitude of the optical device;
Control for controlling the removal operation of the foreign material by the accessory device according to the detection result of the posture detection means in a state where the accessory device having the removal mechanism for removing the foreign material attached to the surface of the optical element is mounted. Means.

A foreign matter removing method in an optical apparatus according to an aspect of the present invention includes the following steps. That is,
An imaging unit that converts an optical image of a subject into an electrical signal, and a foreign matter removal method in an optical device having an optical element disposed on the front surface of the imaging unit,
A removal step for removing foreign matter adhering to the surface of the optical element;
An attitude detection step of detecting the attitude of the optical device;
And a control step of performing control related to the foreign substance removal operation in the removal step according to the detection result in the posture detection step.

A foreign matter removing method in an optical apparatus according to an aspect of the present invention includes the following steps. That is,
A foreign matter removing method in an optical apparatus having an imaging unit that converts an optical image of a subject into an electrical signal,
An attitude detection step of detecting the attitude of the optical device;
With the accessory device equipped with a removal mechanism that removes the foreign matter adhering to the lens-side front surface of the imaging unit being mounted, the accessory device relates to a foreign matter removal operation according to the detection result in the posture detection step. And a control step for performing control.

  The outline of the present invention does not enumerate all necessary features, and therefore, a sub-combination of these feature groups can also be an invention.

  According to the present invention, even if the removed foreign matter does not reattach to the optical filter surface or the foreign matter is removed using an accessory device without increasing the size of the optical device, the member inside the optical device is damaged. There is an effect that there is little fear.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention.

  Hereinafter, a lens interchangeable digital single-lens reflex camera (hereinafter simply referred to as a camera) applied as the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings. The embodiment described below is an example as means for realizing the present invention, and should be appropriately modified or changed according to the configuration and various conditions of the apparatus to which the present invention is applied. It is not limited to the embodiment.

[Embodiment 1]
FIG. 1 is a side sectional view for explaining a schematic configuration of the imaging unit 10 and the focal plane shutter 50 of the camera 100 according to Embodiment 1 of the present invention. FIG. 2 illustrates a main part of the focal plane shutter 50. FIG. 3 is a rear perspective view of the focal plane shutter 50 (a perspective view as viewed from the imaging unit 10), and FIG. 4 is a front perspective view of the focal plane shutter 50.

  1 to 4, the imaging unit 10 integrates the optical element 11 and the holding member 12 in contact with the optical element 11, the holding member 12 that holds the optical element 11, and the surface of the optical element 11. The support plate 13 and the cover member 15a for protecting the solid-state image pickup device 15b, the solid-state image pickup device 15, and the seal member 16 for sealing between the cover member 15a of the solid-state image pickup device 15 and the optical element 11. The solid-state imaging device 15 is connected to the connection terminal 15c, and the substrate 17 on which an electric element constituting a control circuit for controlling the operation of the camera 100 is mounted, and the solid-state imaging device 15 are integrated. Is mainly composed of a holding plate 18 for fixing the camera 100 to a chassis (not shown) of the camera 100 with screws (not shown).

  On the other hand, the focal plane shutter 50 includes a front curtain 21 composed of a plurality of shutter blades 21a to 21d, a rear curtain 22 also composed of a plurality of shutter blades, and a front curtain 21 and a rear curtain in the focal plane shutter 50. The intermediate plate 23 that divides the drive space 22 and the press plate of the rear curtain 22, and at the same time, the press plate 24 that has an opening 24 a at its substantially central portion for imaging, and the press plate of the front curtain 21. At the same time, it has a cover plate 25 provided with an opening 25a at its substantially central portion for imaging.

  2 is driven and opened by a front curtain drive source 35 (FIG. 4), which will be described later, in order to change the front curtain 21 from the state of FIGS. 1 to 4 to the state where the opening 24a and the opening 25a are exposed. It is a lever that operates. The charge lever 27 (FIG. 2) performs the opening operation of the front curtain 21 together with the drive lever 26, and in order to return the front curtain 21 that has performed the opening operation to the closed state shown in FIGS. It is driven by the drive source 36 (FIG. 4) to perform the closing operation. Further, reference numerals 28 and 29 in FIG. 2 denote rear curtain drive levers that are driven by a rear curtain drive source 37 (FIG. 4), which will be described later, to open and close the rear curtain 22. That is, the shutter blades 21 a to 21 d constituting the front curtain 21 are integrally opened and closed by the front curtain drive lever 26 and the charge lever 27. Each shutter blade constituting the rear curtain 22 is also integrally opened and closed by the rear curtain drive levers 28 and 29 (FIGS. 2 and 3). Reference numeral 30 denotes a foreign substance such as dust attached to the surface of the optical element 11.

  31 is an insulator such as polyimide integrated with the shutter blade 21a, 32 is a coil for charging and discharging the insulator 31, and 33 is positioned when each shutter blade 21a to 21d of the front curtain 21 is opened. This is a stopper rubber having a stopper portion 33a. The suction portion 33b is provided on the surface of the stopper rubber 33, and sucks and holds the foreign material 30 by its adhesive force.

  Further, the front curtain drive source 35 is constituted by an electromagnetic actuator constituted by a known coil, yoke or the like, a drive lever, etc. (simplified and shown in FIG. 4). The charge drive source 36 includes a drive lever, a spring, and the like for performing the closing operation in order to return the front curtain 21 that has performed the opening operation to the closed state shown in FIGS. As shown in FIG. The rear-curtain drive source 37 is configured by an electromagnetic actuator configured by a known coil, yoke, or the like and a drive lever for performing the opening / closing operation of the rear-curtain 22 (simply shown in FIG. 4).

  FIG. 5 is a configuration diagram illustrating a camera system in which the lens device 102 is connected to the camera 100 according to the first embodiment. Here, the camera 100 (imaging device) and a lens device 102 that is detachably attached to the main body of the camera 100 are included. The camera posture shown in FIG. 5 is referred to as a “normal position”. In FIG. 5, parts common to the parts shown in the above-mentioned drawings are denoted by the same symbols, and description thereof is omitted.

  This camera 100 is a single-plate digital color camera having the above-described image pickup unit 10 and focal plane shutter 50 and using a solid-state image pickup device 15b such as a CCD or CMOS sensor. Drive to obtain an image signal representing a moving image or a still image. Here, the imaging element 15b is an area sensor of a type that converts the exposed light into an electrical signal for each pixel, accumulates charges according to the amount of received light, and reads the accumulated charges.

  In the figure, a mount mechanism 101 is a mechanism for connecting a detachable lens device 102 to the camera 100. The lens device 102 is mechanically connected to the camera 100 via the mount mechanism 101 and electrically connected via a terminal 102a. Connected to. Then, by attaching each of the various lens devices 102 having different focal lengths to the camera 100, it is possible to obtain shooting screens having various angles of view. In the optical path L1 from the photographing optical system 103 included in the lens device 102 to the solid-state image pickup device 15b, the photographing optical system prevents an unnecessarily high spatial frequency component from being transmitted to the object image (optical image) on the solid-state image pickup device 15b. An optical element 11 for limiting the cutoff frequency 103 is provided.

  The signal read from the solid-state imaging device 15b is displayed on the display unit 107 as an image after being subjected to predetermined processing as will be described later. The display unit 107 is attached to the rear surface of the camera 100 so that the user can directly observe the display on the display unit 107. If the display unit 107 is composed of an organic EL spatial modulation element, a liquid crystal spatial modulation element, a spatial modulation element using fine particle electrophoresis, or the like, power consumption can be reduced and the display unit 107 can be made thinner. it can. Thereby, the power saving and size reduction of the camera 100 can be achieved. Specifically, the solid-state imaging device 15b is a CMOS process compatible sensor (hereinafter referred to as a CMOS sensor) which is one of the amplification type solid-state imaging devices. One of the features of this CMOS sensor is that the MOS transistors in the area sensor and peripheral circuits such as the image pickup unit drive circuit, AD converter circuit, and image processing circuit can be formed in the same process. There is an advantage that it can be greatly reduced. Further, it has a feature that random access to an arbitrary pixel is possible, and readout with thinned pixels for display can be easily performed. In this way, the display unit 107 can display in real time at a high display rate. This solid-state image sensor 15b utilizes the above-described features, and outputs image data for display (reading out a part of the light-receiving area of the solid-state image sensor 15b) and high-definition image output operation. (Reading out in the entire light receiving area).

  Reference numeral 111 denotes a movable half mirror that reflects a part of the light beam L1 from the photographing optical system 103 and transmits the remaining part. The half mirror 111 has a refractive index of about 1.5 and a thickness of 0.5 mm. Reference numeral 105 denotes a focusing screen arranged on a predetermined image plane of an object image formed by the photographing optical system 103, and 112 denotes a pentaprism. The finder lens 109 is a lens for the user to observe the object image formed on the focusing screen 105, and is composed of one or a plurality of finder lenses (not shown). The focusing screen 105, the pentaprism 112, and the finder lens 109 constitute a finder optical system. Reference numeral 104 denotes an aperture.

  A movable sub mirror 122 is provided behind the half mirror 111 (on the image plane side). The sub mirror 122 reflects the light beam close to the optical axis L 1 out of the light beam transmitted through the half mirror 111 and guides it to the focus detection unit 121. The sub mirror 122 rotates about a rotation shaft (not shown) provided on a holding member (not shown) of the half mirror 111 and moves in conjunction with the movement of the half mirror 111. The focus detection unit 121 receives the light beam from the sub mirror 122 and performs focus detection by the phase difference detection method. The optical path splitting system composed of the half mirror 111 and the sub mirror 122 is a first optical path splitting state for guiding light to the finder optical system, and directly guides the light beam from the imaging lens (not shown) to the solid-state imaging device 15b. Therefore, the second optical path division state (positions indicated by broken lines in FIG. 5: 111 ′ and 122 ′) retracted from the photographing optical path can be taken.

  Reference numeral 114 denotes a movable flash light emitting unit, which is movable between a storage position stored in the camera 100 and a light emission position protruding from the camera 100. The focal plane shutter 50 adjusts the amount of light incident on the image plane. Reference numeral 119 denotes a main switch for starting up the camera 100. The release button 120 is pressed in two stages, a shooting preparation operation (photometry operation, focus adjustment operation, etc.) is started by a half-press operation (SW1 is ON), and a shooting operation (solid state is performed by a full-press operation (SW2 is ON)). Recording of image data read from the image sensor 15b to a recording medium is started.

  The switch 123 is a mode switching switch for switching the camera 100 from an imaging mode for imaging a subject to a cleaning mode in order to remove foreign matter attached to the surface of the optical element 11 of the camera 100. Reference numeral 180 denotes an information display unit in the optical viewfinder for displaying specific information on the focusing screen 105. Reference numeral 60 denotes an attitude detection unit such as a known angular velocity sensor that detects the attitude of the camera 100.

  FIG. 6 is a block diagram showing an electrical configuration of the camera system of the camera 100 shown in FIG. Here, the same members as those described with reference to FIG. First, an explanation will be given from the part related to the imaging and recording of object images.

  This camera system has an imaging system, an image processing system, a recording / reproducing system, and a control system. The imaging system includes a photographing optical system 103 and a solid-state imaging device 15, and the image processing system includes an A / D converter 130, an RGB image processing circuit 131, and a YC processing circuit 132. The recording / reproducing system includes a recording processing unit 133 and a reproduction processing unit 134. The control system further includes a camera system control unit (control unit) 135, an operation detection unit 136, and an imaging device drive unit 137. The connection terminal 138 is a connection terminal that is connected to an external computer or the like and standardized to transmit and receive data. Each of the circuits and units described above is driven by power supplied from a small fuel cell (not shown). The imaging system is an optical processing system that forms an image of light from an object on the imaging surface of the solid-state imaging device 15 via the imaging optical system 103. The driving of the diaphragm 104 provided in the photographing optical system 103 is controlled, and the focal plane shutter 50 is driven via the shutter control circuit 145 as necessary, so that an appropriate amount of object light is supplied to the solid-state imaging device. 15 can receive light.

  The solid-state imaging device 15 uses an imaging element 15b in which 3700 square pixels are arranged in the long side direction and 2800 in the short side direction, and the total number of pixels is about 10 million. In addition, R (red), G (green), and B (blue) color filters are alternately arranged in each pixel, thereby forming a so-called Bayer array in which four pixels are a set. In the Bayer array, the total image performance is improved by arranging more G component pixels that are easily felt when an observer views an image than R and B component pixels. In general, in image processing using this type of image sensor, luminance signals are generated mainly from G component signals, and color signals are generated from R, G, and B component signals. The signal read from the solid-state imaging device 15b is supplied to the image processing system via the A / D converter 130. Image data is generated by image processing in this image processing system. Here, the A / D converter 130 converts, for example, the output signal of the solid-state image sensor 15b into a 10-bit digital signal according to the amplitude of the signal read from each pixel of the solid-state image sensor 15b, and outputs it. The subsequent image processing is executed by digital processing.

  The image processing system is a signal processing circuit that obtains an image signal of a desired format from digital signals of R, G, and B components. The color signal of R, G, and B is converted into a luminance signal Y and a color difference signal (RY), It is converted into a YC signal represented by (BY). The RGB image processing circuit 131 is a signal processing circuit that processes the output signal of the A / D converter 130, and includes a white balance circuit, a gamma correction circuit, and an interpolation calculation circuit that performs high resolution by interpolation calculation. The YC processing circuit 132 is a signal processing circuit that generates a luminance signal Y and color difference signals RY and BY. The YC processing circuit 132 generates a high-frequency luminance signal generation circuit that generates a high-frequency luminance signal YH, a low-frequency luminance signal generation circuit that generates a low-frequency luminance signal YL, and color difference signals RY and BY. It has a color difference signal generation circuit. The luminance signal Y is formed by combining the high frequency luminance signal YH and the low frequency luminance signal YL. The recording / reproducing system is a processing system that outputs an image signal to a memory (not shown) and outputs an image signal to the display unit 107. The recording processing unit 133 performs writing processing and reading processing of the image signal to the memory, and the reproduction processing unit 134 reproduces the image signal read from the memory and outputs it to the display unit 107. The recording processing unit 133 includes a compression / decompression circuit that compresses the YC signal representing still image data and moving image data in a predetermined compression format, and decompresses the compressed data. This compression / decompression circuit has a frame memory for signal processing and the like, stores YC signals from the image processing system for each frame in this frame memory, and signals stored from each block among a plurality of blocks. Is compressed and encoded. This compression coding is performed by, for example, performing two-dimensional orthogonal transformation, normalization, and Huffman coding on the image signal for each block. The reproduction processing unit 134 performs matrix conversion on the luminance signal Y and the color difference signals RY and BY, for example, into RGB signals. The signal converted by the reproduction processing unit 134 is output to the display unit 107 and displayed (reproduced) as a visible image. The reproduction processing unit 134 and the display unit 107 may be connected via wireless communication such as Bluetooth. If comprised in this way, the image imaged with this camera 100 can be monitored from the distant place.

  On the other hand, the operation detection unit 136 in the control system detects the operation of the main switch 119, the release button 120, the mode changeover switch 123 and the like (other switches are not shown), and the operation detection result of these operation switches and buttons. Is output to the camera system control unit 135. The camera system control unit 135 includes a CPU 600, a ROM 601 that stores programs and data executed by the CPU 600, and a RAM 602 that is used as a work area and stores various data. The camera system control unit 135 receives the detection signal from the operation detection unit 136 and performs an operation according to the detection result. In addition, the camera system control unit 135 generates a timing signal for performing an imaging operation and outputs the timing signal to the imaging device driving unit 137. The imaging device driving unit 137 receives the control signal from the camera system control unit 135 and generates a driving signal for driving the solid-state imaging device 15b. The information display unit 142 receives a control signal from the camera system control unit 135 and controls driving of the information display unit 180 in the optical viewfinder. As described above, the control system controls driving in the imaging system, the image processing system, and the recording / reproducing system in accordance with operations of various switches provided in the camera 100. For example, when SW2 is turned on by operating the release button 120, the control system (camera system control unit 135) drives the solid-state imaging device 15b, operates the RGB image processing circuit 131, compresses the recording processing unit 133, and the like. To control. Further, the control system changes the display (the state of the display segment) in the optical finder by controlling the driving of the information display unit 180 in the optical finder via the information display unit 142.

  Next, the focus adjustment operation of the photographic optical system 103 will be described.

  The camera system control unit 135 is connected to the AF control unit 140. Further, by mounting the lens apparatus 101 on the camera 100, the camera system control unit 135 is connected to the lens system control circuit 141 in the lens apparatus 101 via the mount contacts 100a and 101a. The AF control unit 140, the lens system control circuit 141, and the camera system control unit 135 communicate data necessary for specific processing with each other. The focus detection unit 121 (FIG. 5) (focus detection sensor 167) outputs a detection signal in a focus detection area provided at a predetermined position in the shooting screen to the AF control unit 140. The AF control unit 140 generates a focus detection signal based on the output signal from the focus detection unit 121 and detects the focus adjustment state (defocus amount) of the photographing optical system 103. The AF control unit 140 converts the detected defocus amount into a drive amount of a focus lens, which is a part of the photographing optical system 103, and transmits information on the drive amount of the focus lens via the camera system control unit 135. To the lens system control circuit 141. Here, when focus adjustment is performed on a moving object, the AF control unit 140 takes into account the time lag from when the release button 120 is fully pressed until the actual imaging control starts, Predict an appropriate stop position. Then, information regarding the driving amount of the focus lens to the predicted stop position is transmitted to the lens system control circuit 141.

  On the other hand, when the camera system control unit 135 determines that the brightness of the object is low and sufficient focus detection accuracy cannot be obtained based on the output signal of the solid-state imaging device 15b, the flash light emitting unit 114 or the camera 100 is provided. An object is illuminated by driving a white LED (not shown) or a fluorescent tube (not shown). When the lens system control unit 141 receives the information on the driving amount of the focus lens from the camera system control unit 135, the lens system control unit 141 controls the driving of the AF motor 147 disposed in the lens device 102, thereby driving the driving unit (not shown). Then, the focus lens is moved in the direction of the optical axis L1 by the drive amount. As a result, the photographing optical system 103 is brought into focus. As described above, when the focus lens is composed of a liquid lens or the like, the interface shape is changed. In addition, when the lens system control unit 141 receives information on the exposure value (aperture value) from the camera system control unit 135, the lens system control unit 141 controls the driving of the aperture drive actuator 143 in the lens device 102, and thereby according to the aperture value. The diaphragm 104 is operated so that the diaphragm opening diameter is obtained. In addition, when the shutter control unit 145 receives information on the shutter speed from the camera system control unit 135, the shutter sources, 29 and the charge units 28, which are the drive sources of the front curtain 22 and the rear curtain 21 of the focal plane shutter 50. By controlling the drive, the front curtain 22 and the rear curtain 21 are operated so as to achieve the shutter speed. By the operation of the focal plane shutter 50 and the diaphragm 104, an appropriate amount of object light can be directed to the image plane side. When the AF control unit 140 detects that the object is in focus, this information is transmitted to the camera system control unit 135. At this time, when SW2 is turned on by a full pressing operation of the release button 120, the photographing operation is performed by the imaging system, the image processing system, and the recording / reproducing system as described above. Each of 35 to 37 is a front curtain drive source, a charge drive source, and a rear curtain drive source.

  Next, control in the cleaning mode in the camera 100 according to the first embodiment will be described.

  FIG. 7 is a flowchart for explaining processing in the cleaning mode in the camera 100 according to the first embodiment. This processing is executed under the control of the CPU 600 according to a program stored in the ROM 601 of the camera system control unit 135. The

  This process starts when the cleaning mode is set by the switch 123. First, in step S100, when it is determined that the cleaning mode is set, the process proceeds to step S101, and the posture of the camera 100 is confirmed. This process will be described later with reference to the flowchart of FIG. Next, in step S102, shooting conditions such as the shutter speed and aperture value set by the camera 100 before shifting to the cleaning mode are stored in the RAM 602 of the camera system control unit 135, and the process proceeds to step S103. In step S103, the front curtain drive source 35 is operated to open the shutter blades 21a to 21d of the front curtain 21 so that the front curtain 21 is fully opened.

  FIG. 9 is a side sectional view for explaining a schematic configuration of the imaging unit 10 and the focal plane shutter 50 when the opening operation of the front curtain 21 is started in the first embodiment of the present invention. Here, the foreign material 30 adheres to the surface of the insulator 31.

  FIG. 10 is a side sectional view for explaining a schematic configuration of the imaging unit 10 and the focal plane shutter 50 when the front curtain 21 completes the opening operation in the first embodiment of the present invention. Here, the shutter blades of the front curtain 21 are fully opened, and the foreign matter 30 remains attached to the surface of the insulator 31.

  In step S104, a predetermined voltage is applied to the coil 32 in order to charge the insulator 31 integrated with the shutter blade 21a of the front curtain 21. Almost simultaneously with step S104, in step S105, a command to set the driving speed V of the front curtain 21 to V1 is sent to the shutter control circuit 145. Thus, the charge driving source 36 is set so that the front curtain 21 performs the closing operation at the set speed V1. This set speed V1 is set slower than the speed at which the opening / closing operation of the front curtain 21 is performed (the set speed V2 described later) when the camera 100 is in the imaging mode. This is because it is advantageous that the moving speed of the insulator 31 is slower when attracting the foreign material 30 attached to the surface of the optical element 11 to the insulator 31 in the next step S106.

  Next, in step S106, an operation of closing the front curtain 21 at the set speed V1 set in step S105 is executed. At this time, since the insulator 31 is charged, if the foreign matter 30 is attached to the surface of the optical element 11, the foreign matter 30 is charged as described above, and thus the foreign matter 30 charged with each other. An electrostatic force is generated between the insulator 31 and the insulator 31. Since the insulator 31 is fixed to the shutter blade 21a of the front curtain 21, the foreign matter 30 is attracted to the insulator 31 by this electrostatic force (electrostatic adsorption) against the adhesive force with the surface of the optical element 11. . And the foreign material 30 attracted to the insulator 31 by this electrostatic force etc. continues to remain on the surface of the insulator 31.

  Next, in step S107, detection means (not shown) provided in the focal plane shutter 50 detects whether all the shutter blades 21a to 21d of the front curtain 21 have completed the closing operation. In this way, when it is detected in step S107 that all the shutter blades 21a to 21d of the front curtain 21 have completed the closing operation, the process proceeds to step S108, and the front curtain drive source 35 is driven according to the setting of step S105. Then, the opening operation of the front curtain 21 is started at the speed V1. In step S109, a voltage opposite to the voltage applied in step S104 is applied to the coil 32. In step S110, detection means (not shown) provided in the focal plane shutter 50 detects whether all the shutter blades 21a to 21d of the front curtain 21 have completed the opening operation. Thus, when it is detected in step S110 that all the shutter blades 21a to 21d of the front curtain 21 have completed the opening operation, the process proceeds to step S111.

  In step S110, a voltage opposite to the voltage applied in step S104 to the coil 32 in step S109 is applied to the coil 32. Therefore, when the insulator 31 and the coil 32 come into contact with each other by the opening operation of the front curtain 21, the charge charged in the insulator 31 is released, and the insulator 31 is neutralized. By this static elimination operation, the foreign matter 30 attached to the surface of the insulator 31 due to electrostatic force is separated from the surface of the insulator 31 due to gravity because the electrostatic force acting between the insulator 31 and the foreign matter 30 disappears. Then, it is dropped and captured by the suction portion 33b provided on the surface of the stopper rubber 33. As a result, the foreign material 30 away from the surface of the optical element 11 does not drift in the body of the camera 100, so that there is no possibility of reattachment to the surface of the optical element 11.

  In step S111, a predetermined time is counted by a timer (not shown) included in the camera system control unit 135. This is step S110, and the foreign matter 30 drifts around the focal plane shutter 50 by the closing operation of the front curtain 21 before the foreign matter 30 separated from the surface of the insulator 31 is captured by the suction portion 33b. This is to prevent reattachment to the surface of the optical element 11. Next, in step S112, a command to set the driving speed V of the front curtain 21 to V2, which is a normal opening / closing operation speed, is sent to the shutter control circuit 145. Thereby, the charge drive source 36 is set so that the front curtain 21 performs the closing operation at the set speed V2. Next, in step S113, the charge driving source 36 is driven at the speed V2 set in step S112, and the closing operation of the front curtain 21 is performed. Next, in step S114, after the completion of the closing operation of the front curtain 21 in step S113, the cleaning mode is canceled. At the same time, in step S115, the cleaning mode is canceled on the display unit 107 (or the cleaning operation is completed). A message to that effect is displayed. Thereafter, in step S116, the camera 100 returns to the shooting conditions stored in step S101, and the series of sequences is completed.

  FIG. 8 is a flowchart for explaining the camera posture confirmation processing executed in step S101 of FIG.

  First, in step S <b> 200, the posture detection unit 60 detects the posture of the camera 100. Thereby, the direction of the camera 100 is determined. Next, in step S201, it is determined whether the posture of the camera 100 determined in step S200 is a posture suitable for the foreign substance 30 removal operation described above.

  Here, the position of the camera 100 shown in FIG. 5 is set as a recommended posture for the foreign substance removal operation. That is, when the foreign matter 30 is electrostatically attracted to the insulator 31 during the above-described removal operation of the foreign matter 30, even if the foreign matter 30 is not attracted to the insulator 31 and falls down in FIG. This is because it is possible to prevent the removed foreign matter 30 from reattaching to the surface of the optical element 11.

  Even if the foreign object 30 sucked by the insulator 31 moves away from the insulator 31 when the front curtain 21a is driven by the operation of removing the foreign object 30 and falls downward as shown in FIG. The foreign material 30 is reliably captured by the adsorption part 33b. Thereby, it is possible to prevent the removed foreign matter 30 from reattaching to the surface of the optical element 11. For this reason, the normal position shown in FIG. 5 is the recommended posture during the foreign substance removal operation.

  When it is determined in step S201 that the posture of the camera 100 is the recommended posture or the normal position, the process proceeds to step S202, and the display unit 107 displays that the camera 100 is in the recommended posture for the foreign substance removal operation. Return to the original processing flow. If it is determined in step S201 that the posture of the camera 100 is not the normal position, the process proceeds to step S203, a warning display for returning the posture of the camera 100 to the recommended posture is displayed on the display unit 107, and the flow proceeds to step S204. It is determined whether the posture of the camera 100 has been corrected to the recommended posture. If the posture of the camera 100 is not the recommended posture, the process returns to step S210 again, and the warning display regarding the posture of the camera is continuously displayed on the display unit 107. When the posture of the camera 100 becomes the recommended posture in step S204, the process proceeds to step S202, where the display unit 107 displays that the camera 100 is in the recommended posture for the foreign substance removal operation, and returns to the original processing flow.

  According to the above configuration, until the camera 100 is in the recommended posture, a warning that the recommended posture should be displayed is displayed, and foreign matter removal such as running the front curtain 21a and energizing the coil 32 to the user is not performed. Has control over. By performing such control, it is possible to obtain an effect that the removed foreign matter does not reattach to the surface of the optical element.

  In the first embodiment, the method for removing foreign matter adhering to the surface of the optical element has been described. However, the present invention is not limited to this method. For example, the cover of the solid-state imaging device is opened through the opening of the focal plane shutter. Needless to say, even in the case of a digital color camera in which the surface of the glass is visible, it is possible to provide an optical apparatus in which the removed foreign matter does not reattach to the cover glass of the solid-state imaging device.

  In the first embodiment, the case where the foreign matter removing mechanism built in the camera 100 is the electrostatic suction method has been described. However, the present invention is not limited to this, and is described in Patent Documents 1 and 2, for example. It goes without saying that the same effect can be obtained in various methods.

[Embodiment 2]
In the above-described first embodiment, when the foreign substance removing mechanism is built in the camera 100, the control of the foreign substance removing mechanism according to the posture of the camera has been described. However, in the second embodiment, the mounting mechanism of the camera 200 is described. The relationship between the posture of the camera 200 and the accessory device that removes foreign matter attached to the cover glass surface and the optical element of the solid-state imaging device will be described. The only difference between the camera 100 in the first embodiment and the camera 200 in the second embodiment is that a foreign matter removing mechanism is built in or not, and other configurations are the same.

  A second embodiment of the present invention will be described with reference to FIGS.

  FIG. 11 is a perspective view showing the configuration of the accessory device 70 according to the second embodiment, and shows a state before being attached to the camera 200 in the cleaning mode.

  FIG. 12 is a perspective view showing a state when the accessory device 70 is attached to the mount mechanism 101 of the camera 200 and the accessory device 70 is operated in order to remove foreign matters attached to the optical element 11.

  Reference numeral 71 denotes a shaft portion that can advance and retreat in order to bring the adhesive portion 74 into close contact with the optical element 11 in the camera 200, and is provided with a rotation stop portion 71a so that the adhesive portion 74 described later does not rotate during advancement and retraction. Reference numeral 72 denotes a flexible portion which is provided integrally with a support portion 75 which will be described later and is substantially V-shaped and flexible. The elastic part 73 is suspended integrally with the flexible part 72 and has a substantially U-shape. The adhesive portion 74 is a member that is provided at the tip of the elastic portion 73 and is a member for contacting and removing a foreign matter by adhering the foreign matter with the adhesive force. In addition, the front-end | tip part side of the elastic part 73 in which this adhesion part 74 is provided forms the substantially circular arc shape which expanded a little outside. As a result, when the adhesive portion 74 comes into contact with an optical member having a substantially flat surface shape, such as a cover glass or an optical filter of a solid-state imaging device in the camera 200, the adhesive portion 74 is pressed. The adhesive portion 74 gradually abuts from the center of the optical member toward the periphery thereof. The pressure-sensitive adhesive portion 74 may be a pressure-sensitive adhesive tape (for example, a double-sided pressure-sensitive adhesive tape “9313” manufactured by Sumitomo 3M), or a material in which an acrylic pressure-sensitive adhesive is directly applied to the surface of the elastic portion 73. Further, it is desirable that the adhesive portion 74 has conductivity so that the optical element 11 does not cause peeling electrification when peeled after coming into contact with the optical element 11.

  The support unit 75 is used for supporting the accessory device 70 when the user attaches the accessory device 70 to the camera 200. The attachment unit 76 is used to attach the accessory device 70 to the mount mechanism 101 of the camera 200. The mounting portion 76 includes a locking portion 76a that is positioned and locked by the mount mechanism 101, and a fitting portion 76c that can slide with a rotation stopping portion 71a provided on the shaft portion 71 as will be described later. 13, 14). Reference numeral 77 denotes an on / off switch for removing foreign matter attached to the optical element 11 of the accessory device 70, as will be described later. The accessory device 70 is electrically connected to the mount mechanism 101 of the camera 200 via a contact portion (not shown), and exchanges signals regarding the foreign substance removal operation of the accessory device 70 with the camera 200.

  FIGS. 13 to 15 are perspective views when the accessory device 70 according to the second embodiment is attached to and operated on the camera 200 in the cleaning mode.

  FIG. 13 is a perspective view showing a state immediately after the accessory device 70 is attached to the camera 200. At this time, the adhesive portion 74 and the support portion 71 are in the state shown in FIG.

  FIG. 14 shows the accessory device 70 rotated from the state shown in FIG. 13 in the direction of arrow T in the figure, whereby the locking portion 76 a of the accessory device 70 is positioned with respect to the mount mechanism 101 of the camera 200. It is locked. Therefore, the accessory device 70 is also positioned and locked with respect to the camera 200. At this time, the accessory device 70 remains in the state shown in FIG.

  FIG. 15 is a schematic view showing a state after the user operates the switch 77 in order to remove the foreign matter attached to the optical element 11 from the state shown in FIG.

  When the switch 77 is operated in the X direction as shown in FIG. 15, the shaft portion 71 is in the direction of the arrow Y in FIG. 15 while the rotation preventing portion 71a and the fitting portion 76c provided on the mounting portion 76 are kept in the fitted state. To slide. As a result, the adhesive portion 74 enters the camera 200. At this time, the adhesive portion 74 does not touch the internal structure of the camera 200. The central portion of the adhesive portion 74 is in contact with the optical element 11 through the opening 24a of the presser plate 24 of the focal plane shutter 50 and the opening 25a of the cover plate 25 (FIG. 1). The adhesive portion 74 is automatically moved until it comes into contact with 11 (FIG. 15). Thereby, the foreign material 30 adhering to the surface of the optical element 11 is adsorbed by the adhesive force of the adhesive portion 74.

  Thereafter, after a predetermined time has elapsed, the shaft portion 71 slides in the direction opposite to the arrow Y direction in FIG. 15 and shifts to the state shown in FIG. At this time, the foreign material 30 adsorbed to the adhesive portion 74 from the surface of the optical element 11 remains held by the adsorption portion 74. Therefore, after the shaft portion 71 returns to the state shown in FIG. 14, the accessory device 70 is attached to the surface of the optical element 11 by further rotating the accessory device 70 in the direction opposite to the arrow T in FIG. The foreign object 30 can be discharged to the outside of the camera 200.

  FIG. 16 is a flowchart for explaining processing in the camera 200 according to Embodiment 2 of the present invention. This processing is executed under the control of the CPU 600 in accordance with a program stored in the ROM 601 of the camera system control unit 135. This process is executed when the camera 200 according to the second embodiment is set to the cleaning mode, the accessory device 70 is attached to the camera 200, and the switch 77 is turned on. If the camera 200 is set to the cleaning mode with the accessory device 70 attached, the camera 200 does not accept input of various switches including the main switch 119 until the cleaning mode is canceled. (Invalid) state.

  First, in step S301, the process proceeds to the subroutine of FIG. 8 for confirming the posture of the camera 200 (confirming whether or not it is in the recommended posture for removing foreign matter) (this process is the same as in the first embodiment described above). Therefore, the description is omitted). For the accessory device 70 according to the present embodiment, the normal position shown in FIG. In this recommended posture, the shaft portion 71 does not freely advance and retreat in the direction of arrow Y in FIG. 15 due to gravity, and the members in the camera 200 are not damaged. Next, in step S302, the photographing conditions such as the shutter speed and the aperture value set by the camera 200 before shifting to the cleaning mode are stored in the RAM 602 of the camera system control unit 135, and the process proceeds to step S303. In step S303, the mirror 111 is retracted from the optical axis, and at the same time, the front curtain drive source 35 is operated to open the shutter blades 21a to 21d of the front curtain 21 so that the front curtain 21 is fully opened. . Then, the process proceeds to step S304, and in order to keep the front curtain 21 fully open while the accessory device 70 is performing the foreign substance removing operation, the timer (not shown) of the camera system control unit 135 starts counting for a predetermined time. Then, the process proceeds to step S305. This count is at least the time necessary for the foreign substance removing operation of the accessory device 70 (the time from the start of the operation of the accessory device 70 until the adhesive portion 74 comes into contact with the entire surface of the optical element 11 and peels). It has become.

  In parallel with step S304, in step S305, it is confirmed whether or not the posture of the camera 200 has changed from the recommended posture during the foreign object removal operation of the accessory device 70. If there is no change from the recommended posture, the process proceeds to step S306, but if there is a change from the recommended posture, the process proceeds to step S322. In step S322, a display to correct the posture of the camera 200 is displayed on the display unit 107. At the same time, the user may be made to recognize the mirror 111 by forcibly lowering the mirror 111 on the optical axis. In this case, the front curtain 21 that is more likely to be damaged than the mirror 111 is kept open. Next, the process proceeds to step S323, where it is determined whether or not the posture of the camera 200 has returned to the recommended posture. If the posture has not returned to the recommended posture, the process returns to step S322 again to continue the warning display and the like on the display unit 107, in step S323. When the camera 200 returns to the recommended posture, the process proceeds to step S324, the warning display on the display unit 107 is canceled, the foreign object removing operation of the accessory device 70 is restarted, and the process returns to step S305.

  On the other hand, if the posture of the camera 200 has not changed in step S305, the process proceeds to step S306, and it is determined whether the count started in step S304 is completed. If the count is not completed, the process returns to step S305. When the count is completed and a predetermined time has elapsed (cleaning is completed), the process proceeds to step S307, the display unit 107 displays that the foreign substance removal operation by the accessory device 70 is completed, and the process proceeds to step S308. In step S308, it is detected whether the accessory device 70 has been removed from the camera 200. This is performed when the camera system control unit 135 detects that the electrical connection is disconnected when the accessory device 70 is detached from the mounting mechanism 101 of the camera 200. Next, in step S308, when it is detected that the accessory device 70 has been removed from the camera 200, the process proceeds to step S309, where the charge driving source 36 is driven to close the front curtain 21. In step S310, after the completion of the closing operation of the front curtain 21 in step S309, the cleaning mode is canceled, and at the same time, a message indicating that the cleaning mode has been canceled is displayed on the display unit 107. In step S310, when the camera 200 is released from the cleaning mode, the camera 200 returns to a state of accepting input of various switches including the main switch 119. In step S311, the camera 200 returns to the shooting conditions stored in step S301, and the series of sequences ends.

  According to the second embodiment described above, until the camera 200 is in the recommended posture, the mirror 111 up operation and the opening operation of the front curtain 21 which are prerequisites for the foreign matter removal are not performed, and the foreign matter removal operation is not performed. Even after it has been started, the posture is detected, and when the recommended posture is not reached, a control is performed regarding the removal of foreign matter such as giving a warning or the like to alert the user. By controlling in this way, damage to members in the camera can be prevented when removing foreign matter adhering to the optical element surface with an accessory device having a foreign matter removing mechanism.

  In the second embodiment, the control method of the accessory device that removes the foreign material 30 attached to the surface of the optical element 11 has been described. However, the present invention is not limited to this, and the focal plane shutter is opened through the opening. In the case of a digital color camera in which the surface of the cover glass of the solid-state imaging device can be visually confirmed, the foreign matter adhering to the cover glass of the solid-state imaging device can be removed by the accessory device of the second embodiment. Therefore, in the case of such a digital color camera as well, by controlling the operation of the accessory device according to the posture of the camera, it is possible to prevent a failure when removing foreign matters attached to the surface of the solid-state imaging device. .

[Other embodiments]
Other than the above-described embodiment, for example, in the case of a foreign matter removing device configured to vibrate an optical element disposed on the front surface of a solid-state imaging device and remove foreign matter attached to the optical element. Since the foreign matter is expected to fall in the direction of gravity due to vibration, the camera mount opening is set as the recommended posture as the recommended posture, and as a control for removing foreign matter, for example, when the mount opening is upward It is assumed that control is performed to prohibit vibration and increase the amplitude of vibration in the recommended posture.

  Therefore, a recommended posture is set for each device for removing foreign matter, and control related to the removal of foreign matter that is preferable for the device is performed to remove foreign matter more efficiently and prevent reattachment to optical members. It becomes possible to do.

It is a sectional side view for demonstrating schematic structure of the imaging part and focal plane shutter of the camera which concern on embodiment of this invention. It is a front perspective view for demonstrating the principal part of the focal plane shutter which concerns on this Embodiment. It is a back perspective view of a focal plane shutter concerning this embodiment. It is a front perspective view of the focal plane shutter which concerns on this Embodiment. It is a block diagram explaining the camera system which connected the lens apparatus to the camera which concerns on this Embodiment 1. FIG. FIG. 6 is a block diagram showing an electrical configuration of the camera system shown in FIG. 5. 6 is a flowchart for explaining processing in a cleaning mode in the camera according to the first embodiment. It is a flowchart explaining the attitude | position confirmation process of the camera performed by step S101 of FIG. FIG. 3 is a side cross-sectional view for explaining a schematic configuration of an imaging unit and a focal plane shutter when starting the opening operation of the front curtain in Embodiment 1 of the present invention. FIG. 3 is a side cross-sectional view for explaining a schematic configuration of an imaging unit and a focal plane shutter when the front curtain completes an opening operation in Embodiment 1 of the present invention. It is a perspective view which shows the structure of the accessory apparatus 70 which concerns on Embodiment 2 of this invention. It is the perspective view which showed the state when the accessory apparatus which concerns on this Embodiment 2 was attached to the mount of a camera, and operated the accessory apparatus in order to remove the foreign material adhering to an optical element. It is a perspective view which shows the state immediately after attaching the accessory apparatus which concerns on this Embodiment 2 to a camera. It is a perspective view which shows the state which rotated the predetermined angle accessory apparatus from the state of FIG. It is a perspective view which shows the state which operated the accessory apparatus which concerns on this Embodiment 2 from the state of FIG. It is a flowchart explaining the process in the camera which concerns on Embodiment 2 of this invention.

Claims (13)

An optical device having an imaging unit that converts an optical image of a subject into an electrical signal, and an optical element disposed on a front surface of the imaging unit,
Removing means for removing foreign matter adhering to the surface of the optical element;
Attitude detection means for detecting the attitude of the optical device;
Control means for performing control related to the foreign substance removal operation by the removal means according to the detection result of the posture detection means;
An optical apparatus comprising: An optical apparatus having an imaging unit that converts an optical image of a subject into an electrical signal,
Removing means for removing foreign matter adhering to the lens side front surface of the imaging unit;
Attitude detection means for detecting the attitude of the optical device;
Control means for performing control related to the foreign substance removal operation by the removal means according to the detection result of the posture detection means;
An optical apparatus comprising:   3. The optical apparatus according to claim 1, wherein the attitude detection unit includes an angular velocity sensor, and detects whether or not the attitude of the optical apparatus is a normal position when a horizontally long photograph is taken.   The display control unit according to claim 1, further comprising: a display control unit configured to display the posture of the optical device when the posture of the optical device detected by the posture detection unit is not suitable for removing foreign matter by the removing unit. The optical apparatus according to any one of 1 to 3. The removing means includes
An insulator that moves in conjunction with the shutter operation;
Charge control means for charging the insulator and removing the charge;
Recovery means for recovering foreign matter peeled from the insulator;
The optical apparatus according to claim 1, comprising: An optical device having an imaging unit that converts an optical image of a subject into an electrical signal, and an optical element disposed on a front surface of the imaging unit,
Attitude detection means for detecting the attitude of the optical device;
Control for controlling the removal operation of the foreign material by the accessory device according to the detection result of the posture detection means in a state where the accessory device having a removal mechanism for removing the foreign material attached to the surface of the optical element is mounted. Means,
An optical apparatus comprising: An optical apparatus having an imaging unit that converts an optical image of a subject into an electrical signal,
Attitude detection means for detecting the attitude of the optical device;
Control related to the removal operation of the foreign material by the accessory device according to the detection result of the posture detection means in a state where the accessory device having a removal mechanism for removing the foreign material attached to the lens-side front surface of the imaging unit is mounted. Control means for performing
An optical apparatus comprising:   The optical apparatus according to claim 6, wherein the attitude detection unit includes an angular velocity sensor and detects whether the attitude of the optical apparatus is a normal position when a horizontally long photograph is taken.   The apparatus according to claim 1, further comprising display control means for performing display related to the posture of the optical device when the posture of the optical device detected by the posture detection unit is not suitable for removing foreign matter by the removal mechanism. The optical apparatus according to any one of 6 to 8. An imaging unit that converts an optical image of a subject into an electrical signal, and a foreign matter removal method in an optical device having an optical element disposed on the front surface of the imaging unit,
A removal step for removing foreign matter adhering to the surface of the optical element;
An attitude detection step of detecting the attitude of the optical device;
A control step for performing control related to a foreign matter removal operation in the removal step according to a detection result in the posture detection step;
A method for removing foreign matter in an optical apparatus, comprising: A foreign matter removing method in an optical apparatus having an imaging unit that converts an optical image of a subject into an electrical signal,
A removal step for removing foreign matter adhering to the lens side front surface of the imaging unit;
An attitude detection step of detecting the attitude of the optical device;
A control step for performing control related to a foreign matter removal operation in the removal step according to a detection result in the posture detection step;
A method for removing foreign matter in an optical apparatus, comprising: An imaging unit that converts an optical image of a subject into an electrical signal, and a foreign matter removal method in an optical device having an optical element disposed on the front surface of the imaging unit,
An attitude detection step of detecting the attitude of the optical device;
Control for controlling the removal operation of the foreign material by the accessory device in accordance with the detection result of the posture detection step in a state where the accessory device having the removal mechanism for removing the foreign material attached to the surface of the optical element is mounted. Process,
A method for removing foreign matter in an optical apparatus, comprising: A foreign matter removing method in an optical apparatus having an imaging unit that converts an optical image of a subject into an electrical signal,
An attitude detection step of detecting the attitude of the optical device;
With the accessory device equipped with a removal mechanism that removes the foreign matter adhering to the lens-side front surface of the imaging unit being mounted, the accessory device relates to a foreign matter removal operation according to the detection result in the posture detection step. A control process for controlling;
A method for removing foreign matter in an optical apparatus, comprising:

Images