JP2024012957A - Imaging apparatus, lens device, and method for controlling them - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of reducing power consumption, even when two optical systems have diaphragms respectively.

SOLUTION: An imaging apparatus 100 performs imaging through a first optical system 201R and a second optical system 201L arranged so as to generate a parallax. The imaging apparatus includes an imaging element 105 for converting a subject image formed by each of the first optical system and the second optical system into a signal, detection means 117 for performing exposure detection using the signal from the imaging element, and control means 110 for controlling drive of a first diaphragm included in the first optical system and a second diaphragm included in the second optical system according to a result of the exposure detection, in imaging. When performing the exposure detection, the control means drives one of the first diaphragm and the second diaphragm into a state where the exposure detection can be performed as an exposure detection diaphragm and leaves the other diaphragm non-driven.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to an imaging device and a lens device used for stereoscopic imaging.

Patent Document 1 discloses an optical device that can obtain images for the right eye and for the left eye, which are capable of stereoscopic vision with mutual parallax, by capturing stereoscopic images through two left and right optical systems arranged so as to create parallax. It is disclosed in 2. In the optical device disclosed in Patent Document 1, light from a subject is guided from left and right object-side optical systems to an image sensor through a common image-side optical system. One variable diaphragm is arranged in the image-side optical system, and the diaphragm is driven based on the result of exposure detection. On the other hand, in the optical device of Patent Document 2, the left and right optical systems each have a variable aperture, and the apertures of both optical systems are driven based on the results of exposure detection performed through both optical systems.

Japanese Patent Application Publication No. 2001-222083 JP 2021-051282 Publication

However, in the optical device of Patent Document 2, when driving the aperture, the apertures of both optical systems are always driven. For this reason, power consumption increases compared to the case where one aperture is driven as in the optical device of Patent Document 1.

The present invention provides an imaging device and a lens device that can reduce power consumption even when two optical systems each have an aperture.

An imaging device according to one aspect of the present invention captures images through a first optical system and a second optical system that are arranged so that parallax occurs. The imaging device includes an imaging element that converts a subject image formed by each of the first optical system and the second optical system into a signal, a detection means that performs exposure detection using the signal from the imaging element, and, upon imaging, It has a control means for controlling the driving of the first aperture included in the first optical system and the second aperture included in the second optical system according to the result of exposure detection. The control means is characterized in that, during exposure detection, one of the first aperture and the second aperture is driven as an exposure detection aperture to a state where exposure detection is possible, and the other aperture is not driven.

Further, a lens device according to another aspect of the present invention includes a first optical system and a second optical system arranged so that parallax occurs, and is removable and communicable with an imaging device that performs exposure detection and imaging. It will be installed. The lens device includes a driving means for driving a first aperture included in the first optical system and a second aperture included in the second optical system, and an exposure means for driving one of the first aperture and the second aperture during exposure detection. A transmitting means for transmitting information indicating the detection aperture to the imaging device.

Further, a control method according to another aspect of the present invention is an imaging device that captures an image through a first optical system and a second optical system arranged so that parallax occurs, and in which the first optical system and the second optical system The present invention is applied to an imaging device having an imaging device that converts a subject image formed by each into a signal. The control method includes a step of performing exposure detection using a signal from an image sensor, and a first aperture included in the first optical system and a second aperture included in the second optical system depending on the result of exposure detection during imaging. and controlling the driving of the aperture, and further, during exposure detection, one of the first aperture and the second aperture is driven to a state where exposure detection is possible as an exposure detection aperture, and the other aperture is set to a non-operational state. It is characterized by having a step of driving.

Further, a control method according to another aspect of the present invention includes a first optical system and a second optical system that are arranged so that parallax occurs, and that are removable and communicable with an imaging device that performs exposure detection and imaging. Applies to lens devices that are attached. The control method includes a step of driving a first aperture included in the first optical system and a second aperture included in the second optical system during image capturing, and one of the first aperture and the second aperture that is driven during exposure detection. and transmitting information indicating the exposure detection aperture of the image pickup device to the imaging device. Note that a program that causes a computer of an imaging device or a lens device to execute processing according to the above control method also constitutes another aspect of the present invention.

According to the present invention, power consumption of an imaging device can be reduced even when two optical systems each have an aperture.

FIG. 1 is a block diagram showing the configuration of an imaging device according to a first embodiment. 5 is a flowchart showing processing of a compound eye lens unit in the imaging device of Example 1. FIG. 5 is a flowchart showing processing of the camera body in the imaging device of Example 1. FIG. 10 is a flowchart showing processing of a compound eye lens unit in an imaging device according to a second embodiment. 7 is a flowchart showing the processing of the camera body in the imaging device of Example 3.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an imaging system 1 as an embodiment of the present invention. The imaging system 1 includes a camera main body section (main unit) 100 as an imaging device, and a compound eye lens section (optical unit: hereinafter simply referred to as the lens section) as a lens device that is detachably and communicably attached to the camera main body section 100. 200.

The compound eye lens unit 200 is used for stereoscopic imaging to obtain images that can be viewed stereoscopically, and includes a first optical system 201R and a second optical system 201L that are arranged in parallel to create parallax. Each optical system includes, in order from the object side to the image side, a first lens group (210R, 210L), a second lens group (220R, 220L), and a third lens group (230R, 230L). A first prism (211R, 211L) is arranged between the first lens group and the second lens group, and a second prism (222R, 222L) is arranged between the second lens group and the third lens group. has been done. Each optical system is a bending optical system in which the optical axis (indicated by a dashed line in the figure) is bent by 90 degrees at the reflecting surfaces of the first and second prisms. The distance between the optical axes of the parts of the first optical system 201R and the second optical system 201L that are closer to the object than the first prisms 211R and 211L is set to a predetermined baseline length. On the other hand, the distance between the optical axes of the portions of the first optical system 201R and the second optical system 201L that are closer to the image than the second prisms 222R and 222L is set to be shorter than the base line length. As a result, while securing the baseline length of the first optical system 201R and the second optical system 201L for stereoscopic imaging, two subject images (the first The image R and the second image L) can be captured by one image sensor 105 in the camera body section 100.

In each optical system, focusing can be performed by moving the third lens group in the optical axis direction.

The third lens groups 230R and 230L are driven by a focus drive unit 241 that includes an actuator such as a stepping motor or a voice coil motor. Further, a diaphragm (223R, 223L) is arranged between the first prism and the second lens group of each optical system. The aperture adjusts the amount of light by changing its aperture diameter. The apertures 223R and 223L are driven by an aperture drive unit (driving means) 240 including an actuator such as a stepping motor.

The lens section 200 is electrically connected to the camera body section 100 by being attached to the camera body section 100, and receives power from the power supply section 116 within the camera body section 100. Electric power is used each time the aperture drive unit 240 drives the apertures 223R and 223L, and especially a large amount of electric power is used immediately after the drive starts.

In addition, the lens section 200 is provided with a lens control section 250, a lens recording section 242, and a communication section A260. The lens control section 250 includes at least one processor or circuit, and controls the focus drive section 241 and the aperture drive section 240 in accordance with instructions from the camera control section 110 in the camera body section 100. That is, the camera control section (control means) 110 controls the focus drive section 241 and the aperture drive section 240 through the lens control section 250.

The lens control section 250 and the camera control section 110 can communicate with each other via the communication section A260 and the communication section B101 in the camera body section 100. The lens recording section 242 holds constants, variables, etc. for operation of the lens control section 250. Note that even if the lens unit 200 is equipped with an anti-shake function that reduces (corrects) image blur caused by shake of the imaging system 1 due to camera shake, etc., by providing a correction lens that shifts with respect to the optical axis in each optical system. good.

In addition to the above-mentioned image sensor 105, power supply section 116, communication section B101, and camera control section 110, the camera main body section 100 includes an operation section 102, a shutter 104, a shutter drive section 106, an A/D conversion section 107, an image processing section ( It has an image processing means) 108 and an image recording section 111. Further, the camera body section 110 includes an exposure detection section (detection means) 117, a D/A conversion section 112, a display control section 113, a display section 103, an EVF 114, and an eyepiece section 115. Display unit 103 and EVF 114 correspond to display means.

The operation unit 102 includes operation members such as switches, buttons, and dials that allow the user to perform various operations. Specifically, a power switch that turns on/off the power of the camera body 100 (imaging system 1), SW1 that instructs imaging preparation operations including AF processing and AE processing, which will be described later, and SW2 that instructs recording imaging; It has a mode dial to switch the imaging mode. It also includes a setting button for changing set values such as aperture value, a playback button for instructing playback and display of recorded images generated by imaging, and the like. The operation unit 102 transmits an operation signal to the camera control unit 110 in response to a user operation. As a result, power on/off, imaging preparation operations, recording imaging, imaging mode switching, setting value changes, recorded image playback display, and the like are executed.

The camera control unit 110 includes at least one processor or circuit, and controls the entire imaging system 1 by executing a program recorded in the main body recording unit 109. In addition to the above programs, the main body recording section 109 also holds constants, variables, etc. for operation of the camera control section 110.

The shutter 104 controls the exposure time of the image sensor 105 by opening and closing operations. The shutter drive unit 106 drives the shutter 104 in response to instructions from the camera control unit 110. The image sensor 105 is a photoelectric conversion element that converts the first image R and the second image L, which are the subject images formed by the first optical system 201R and the second optical system 201L, into electrical signals (that is, images). Yes, it is composed of a CCD sensor, CMOS sensor, etc. Furthermore, each pixel of the image sensor 105 has a microlens and a plurality of photoelectric conversion units (sub-pixels) so as to perform focus detection using an imaging surface phase difference detection method. The light flux from each optical system is split into multiple parts by microlenses, and these are converted into electrical signals by multiple sub-pixels.

The camera control unit 110 calculates a phase difference between a plurality of focus detection signals that are generated using electrical signals from a plurality of sub-pixels and have a phase difference from each other, and calculates a defocus amount from the phase difference. Then, based on the defocus amount, the amount of movement of the third lens group to obtain a focused state is calculated, and this is transmitted to the lens control section 250. The lens control unit 250 issues an instruction to the focus drive unit 241 to move the third lens group by the received movement amount. In this way, the third lens group is driven and AF (autofocus) processing is performed. AF processing is performed for each of the first optical system 201R and the second optical system 201L.

The A/D converter 107 converts the electric signal (analog signal) output from the image sensor 105 into image data as a digital signal. The image processing unit 108 performs various image processing on the captured data to generate image data, and writes this to the image recording unit 111. Various image processes include exposure correction processing, pixel interpolation, resizing processing, and color processing based on the aperture value set by the user through the operation unit 102 and the aperture diameters of the apertures 223R and 223L driven by the aperture drive unit 240 of the lens unit 200. Includes conversion processing, etc. The image sensor 105 in this embodiment outputs first image data and second image data corresponding to the first image R and second image L formed by the first optical system 201R and the second optical system 201L, respectively. /D converter 107. The image processing unit 108 generates first image data and second image data corresponding to the first image data and the second image data, respectively.

Note that in this embodiment, a series of processing from imaging by the image sensor 105 to writing image data to the image recording unit 111 is referred to as imaging processing.

The exposure detection unit 117 calculates brightness information (brightness value or photometry) from the image data obtained by converting the electric signal from the image sensor 105 by the A/D conversion unit 107 (or the image data generated by the image processing unit 108). Perform exposure detection to obtain the value). Camera control section 110 calculates an aperture value based on brightness information obtained as a result of exposure detection, and transmits the aperture value to lens control section 250. The lens control section 250 instructs the aperture drive section 240 to operate the aperture according to the received aperture value. In this way, AE (automatic exposure) processing is performed. Note that in the AE processing, the camera control unit 110 also calculates the speed of the shutter 104, and issues an instruction to the shutter drive unit 106 to operate the shutter 104 at the calculated shutter speed.

In this embodiment, one of the first optical system 201R and the second optical system 201L is used as a reference optical system, and imaging data (or image data) obtained through the reference optical system is used to connect the first optical system 201R and the second optical system 201L. AE processing and AF processing are performed on the two-optical system 201L. In this embodiment, the second optical system 201L is used as the reference optical system.

Furthermore, the user may be able to select whether to perform AF processing or AE processing via the operation unit 102. Furthermore, the imaging device may be configured without an AF function.

The image recording unit 111 stores not only recording image data but also display image data for displaying images on the display unit 103 and EVF 114.

The D/A conversion section 112 converts the display image data stored in the image recording section 111 into an analog signal, and supplies the display analog signal to the display control section 113 and the EVF 114.

The display section 103 is composed of a display device such as an LCD or an organic EL. The display control section 113 outputs a display analog signal to the display section 103. Thereby, the display unit 103 displays a live view (LV) image as an electronic image corresponding to the display image data. The user can confirm the subject by viewing the electronic image displayed on the display unit 103. The EVF 114 is also constituted by a display device, and displays an electronic image by inputting a display analog signal. The user can view the electronic image displayed on the EVF 114 through the eyepiece 115 and confirm the subject. Note that the display unit 103 and the EVF 114 can also display a recorded image corresponding to the recording image data.

The power supply unit 116 is composed of a power source such as a battery or an AC adapter, a battery detection circuit, a switch circuit for switching the energizing block, etc., and detects whether or not a battery is installed, the type of battery installed, the remaining battery level, etc. . The camera control unit 110 controls the power supply unit 116 to supply necessary voltage to each energized block.

A recording medium 120 composed of a semiconductor memory, a magnetic disk, or the like is removably attached or built into the camera body 100. The recording medium 120 records recorded images and the like.

The flowchart in FIG. 2 shows a process (control method) executed by the lens control unit 250 in the lens unit 200 according to a program when the imaging system 1 is started.

When the power of the imaging system 1 is turned on in step 300, the lens control unit 250 obtains exposure detection aperture information indicating the aperture to be driven during exposure detection (hereinafter referred to as exposure detection aperture) from the lens recording unit 242 in step 301. . The exposure detection aperture is one of apertures 223R and 223L provided in each of the first optical system 201R and the second optical system 201L. Here, the exposure detection aperture is assumed to be the aperture 223L of the second optical system 201L. However, the exposure detection aperture may be the aperture 223R of the first optical system 201R.

Next, in step 302, the lens control unit 250 serving as a transmitting unit transmits lens control information necessary for controlling the lens unit 200, including exposure detection aperture information, to the camera control unit 110. Then, this process ends.

The flowchart in FIG. 3 shows the processing (control method) in the imaging system 1. Camera control unit 110 and lens control unit 250 execute this process according to the program.

When the power of the imaging system 1 is turned on, in step 400, the lens control unit 250 executes the process shown in FIG. 2 described above. On the other hand, in step 401, the camera control unit 110 receives lens control information (including exposure detection aperture information) transmitted from the lens control unit 250.

Next, in step 402, the camera control unit 110 transmits an instruction to the lens control unit 250 to drive the aperture 223L, which is an exposure detection aperture, to an open state in which exposure detection is possible. In response to the instruction, the lens control section 250 causes the aperture drive section 240 to drive the aperture 223L to an open state.

Next, in step 403, the camera control unit 110 causes the shutter drive unit 106 to drive the shutter 104 to an open state. Then, the image sensor 108 (A/D conversion unit 107) and the image processing unit 108 are caused to start generating first image data and second image data, and generating first image data and second image data, respectively. As a result, the first LV image and the second LV image corresponding to the first image data and the second image data are displayed on the display unit 103 or the EVF 114, respectively. Note that, as the first LV image and the second LV image, LV images corresponding to image data on which the image processing unit 108 has performed image processing such as the above-described exposure correction processing may be displayed. Exposure correction processing is performed on each of the first LV image and the second LV image based on the aperture value set by the user and the actual aperture values of the first aperture 223R and the second aperture 223L.

Next, in step 404, the camera control unit 110 determines whether or not the user has turned on SW1. If SW1 has not been turned on, the process returns to step 403, and if SW1 has been turned on, The process proceeds to step 405.

In step 405, the camera control unit 110 performs AF processing using a plurality of focus detection signals included in the second imaging data obtained through the aperture 223L. Further, in step 406, the camera control unit 110 similarly performs AE processing including exposure detection using the second imaging data. By using the second imaging data obtained through the aperture 223L in the open state in this manner, AF processing and AE processing can be performed satisfactorily.

Next, in step 407, the camera control unit 110 updates and displays the first LV image and the second LV image on the display unit 103 or EVF 114.

Next, in step 408, the camera control unit 110 determines whether the user has turned on SW2. If SW2 is not turned on, the process returns to step 404, and if SW2 is turned on, the process goes to step 409.

In step 409, the camera control unit 110 transmits an instruction to the lens control unit 250 to drive the apertures 223R and 223L to an aperture value set by the user or calculated by AE processing. In response to the instruction, the lens control unit 250 causes the aperture drive unit 240 to drive the apertures 223R and 223L to the aperture value set by the user.

Next, in step 410, the camera control unit 110 issues an instruction to the shutter drive unit 106 to drive the shutter 104 at a shutter speed set by AE processing, thereby driving the shutter 104 and exposing the image sensor 105.

Then, in step 411, the camera control unit 110 performs imaging processing.

Subsequently, in step 412, the camera control section 110 transmits an instruction to the lens control section 250 to drive the aperture 223L to the open state again. In response to the instruction, the lens control section 250 causes the aperture drive section 240 to drive the aperture 223L to an open state.

Next, in step 413, the camera control unit 110 determines whether the user has turned on SW2. If SW2 is not turned on, the process returns to step 404, and if SW2 is turned on, the process goes to step 414.

In step 414, the camera control unit 110 again performs AF processing using the plurality of focus detection signals included in the second imaging data obtained through the aperture 223L. Further, in step 414, the camera control unit 110 similarly performs AE processing including exposure detection using the second imaging data.

Furthermore, in step 416, the camera control unit 110 displays the first LV image and the second LV image on the display unit 103 or EVF 114.

Next, in step 417, the camera control unit 110 determines whether or not the processes of steps 414 to 416 have been repeated a plurality of predetermined times n.If the processes have not been repeated the predetermined number of times, the process returns to step 414, and the process is repeated a predetermined number of times. If so, the process returns to step 409.

As explained above, in this embodiment, one aperture 223L is driven to the open state and the other aperture 223R is not driven during exposure detection performed during image capture preparation operation or multiple image captures. This can reduce the power used to drive the aperture. Further, since the number of operations of the diaphragm 223R is reduced, even if the mechanism is the same, it is less likely to break, or the mechanism can be simplified.

Note that in this embodiment, both the first LV image and the second LV image are displayed on the display unit 103 or the like, but only one of the first LV image and the second LV image may be displayed. This allows one LV image to be displayed in a large size, making it easier for the user to visually recognize it.

Further, in step 409, the apertures 223R and 223L may be driven simultaneously, or one aperture may be driven first and the other aperture may be driven after a predetermined time has elapsed. At this time, the difference between the target aperture value obtained from the exposure detection result and the actual aperture value of the first aperture 223R and the difference between the target aperture value and the actual aperture value of the second aperture 223L are obtained, and the difference is It is preferable to drive one large aperture toward the target aperture value before the other aperture. By driving one aperture first, it is possible to avoid using a large amount of electric power to drive the apertures 223R and 223L simultaneously, and it is possible to maintain the power supply section 116 in a good state.

Example 2 of the present invention will be described. The flowchart in FIG. 4 shows the processing that the lens control unit 250 executes according to the program when the imaging system of this embodiment is started. The configuration of the imaging system in this embodiment is the same as in the first embodiment, and the same components as in the first embodiment are given the same reference numerals as in the first embodiment.

When the imaging system is powered on in step 350, the lens control unit 250 acquires information regarding the number of times each of the apertures 223R and 223L is driven from the lens recording unit 242 in step 351. Then, the lens control unit 250 sets the one of the apertures 223R and 223L that has been driven fewer times from a reference time such as factory shipment to the present time as the exposure detection aperture. If the aperture 223L is set as the exposure detection aperture, the process proceeds to step 352, and if the aperture 223R is set, the process proceeds to step 353.

In step 352, the lens control section 250 drives the aperture 223L to an open state through the aperture drive section 240. The process then proceeds to step 354.

In step 353, the lens control section 250 drives the aperture 223R to an open state through the aperture drive section 240. The process then proceeds to step 354.

In step 354, the lens control section 250 transmits lens control information necessary for controlling the lens section 200, including information regarding the exposure detection aperture (223L or 223R), to the camera control section 110. Then, this process ends.

By performing the above processing, it is possible to equalize the number of times each of the apertures 223R and 223L is driven, and it is possible to improve the durability of the compound eye lens device 200 as a whole including the apertures 223R and 223L.

Example 3 of the present invention will be described. The flowchart in FIG. 5 shows the processing in the imaging system of this embodiment. Camera control unit 110 and lens control unit 250 execute this process according to the program. The configuration of the imaging system in this embodiment is the same as in the first embodiment, and the same components as in the first embodiment are given the same reference numerals as in the first embodiment. However, in this embodiment, the lens unit 200 is equipped with an image stabilization function that shifts the correction lens described above. The correction lens is shifted and driven by an anti-vibration drive unit (not shown) that includes an actuator such as a voice coil motor.

When the power of the imaging system is turned on, in step 500, the lens control unit 250 executes the process shown in FIG. On the other hand, in step 501, the camera control unit 110 receives lens control information (including exposure detection aperture information) transmitted from the lens control unit 250.

Next, in step 502, the camera control unit 110 determines the LV image display setting made by the user through the operation unit 102. If the setting is to display only one of the first LV image and the second LV image, the camera control unit 110 proceeds to step 508. If the setting is to display both the first LV image and the second LV image, the process advances to step 503.

In step 503, the camera control unit 110 determines whether the image stabilization function is turned on (valid) or off (disabled) by the user through the operation unit 102. If the anti-vibration function is set to ON, the process advances to step 508, and if it is set to OFF, the process advances to step 504.

In step 504, the camera control unit 110 determines whether the AF function is turned on or off by the user through the operation unit 102. If the AF function is set to on, the process advances to step 508; if the AF function is set to off, the process advances to step 505.

In step 505, the camera control unit 110 causes the power supply unit 116 to check the remaining battery level. If the remaining battery capacity is less than or equal to the predetermined remaining capacity, the process proceeds to step 508, and if it is greater than the predetermined remaining capacity, the process proceeds to step 506.

In step 506, the lens control unit 250 determines the number of times each of the apertures 223R and 223L held in the lens recording unit 242 is driven, and if the number of times any one of the apertures 223R and 223L is driven is equal to or greater than a predetermined number of times. The process proceeds to step 508. Further, if the number of times both the apertures 223R and 223L are driven is less than the predetermined number of times, the process proceeds to step 507.

In step 507, the lens control unit 250 sets the exposure detection apertures to both the apertures 223R and 223L. The process then proceeds to step 509.

In step 508, the lens control unit 250 sets the exposure detection aperture to the one of the apertures 223R and 223L that has been driven fewer times. The lens control unit 250 transmits exposure detection aperture information indicating the newly set exposure detection aperture in step 507 or step 508 to the camera control unit 110. The process then proceeds to step 509.

In step 509, in response to the ON operation of SW1, the camera control unit 110 drives the exposure detection aperture indicated by the exposure detection aperture information received from the lens control unit 250 in step 507 or step 508 to an open state to expose Perform detection. Then, AE processing (and AF processing if AF processing is on) is performed based on the luminance information obtained by the exposure detection, and further, imaging processing is performed in response to the ON operation of SW2.

Thereafter, when a predetermined period of time has elapsed in step 510, the camera control unit 110 performs the processes from step 502 to step 507 or step 508 to set the exposure detection aperture again. Note that the process may return to step S502 without waiting for the predetermined time to elapse in step S510.

The determination in step 502 described above is for checking whether one of the first LV image and the second LV image does not need to be displayed as an LV image display. The determinations in steps 503 and 504 are for confirming whether the imaging system is in a setting state that increases power consumption. The determination in step 505 is for confirming whether or not the imaging system has little power margin. The determination in step 506 is to confirm whether or not one of the apertures 223R and 223L has deteriorated more rapidly than the other. In this embodiment, in a state in which one LV image does not need to be displayed, in a setting state in which power consumption is high, in a state in which there is little power margin, or in a state in which one aperture is more deteriorated than the other, only one aperture is displayed. is driven as an exposure detection aperture. This makes it possible to reduce the power consumption of the imaging system and to make it difficult for each aperture to deteriorate. Note that judgments different from those in steps 502 to 506 may be made.

In each of the above embodiments, a case has been described in which the lens device is detachably and communicably attached to the imaging device. However, the imaging device may be one in which a portion corresponding to the lens device is integrally provided. In this case, the control means has the functions of the camera control section 110 and the lens control section 250 of each embodiment.

The above embodiment includes the following configuration.

(Configuration 1)
An imaging device that captures an image through a first optical system and a second optical system arranged so that parallax occurs,
an image sensor that converts object images formed by each of the first optical system and the second optical system into signals;
a detection unit that performs exposure detection using a signal from the image sensor;
A control means for controlling driving of a first aperture included in the first optical system and a second aperture included in the second optical system according to the result of the exposure detection during the imaging;
During the exposure detection, the control means may drive one of the first aperture and the second aperture to a state in which the exposure detection is possible as an exposure detection aperture, and leave the other aperture in a non-driven state. An imaging device characterized by:
(Configuration 2)
One of the first optical system and the second optical system is an optical system that serves as a reference for the exposure detection,
2. The imaging device according to configuration 1, wherein the control means drives a diaphragm included in the one optical system of the first diaphragm and the second diaphragm as the exposure detection diaphragm.
(Configuration 3)
The imaging device according to configuration 1, wherein the control means drives the aperture that is driven fewer times between the first aperture and the second aperture as the exposure detection aperture.
(Configuration 4)
comprising display means for displaying an image generated using the signal from the image sensor,
When the image displayed on the display means is only an image obtained through one of the first optical system and the second optical system, the control means controls the first aperture and the second aperture. The imaging device according to configuration 1, wherein a diaphragm included in one of the optical systems is driven as the exposure detection diaphragm.
(Configuration 5)
Configuration 1, wherein the control means drives one of the first aperture and the second aperture as the exposure detection aperture when a function of the imaging device is enabled by a user. The imaging device according to any one of 4 to 4.
(Configuration 6)
Configurations 1 to 4, wherein the control means drives one of the first aperture and the second aperture as the exposure detection aperture when the remaining battery power of the imaging device is less than or equal to a predetermined remaining power. The imaging device according to any one of the above.
(Configuration 7)
The control means may drive one of the first aperture and the second aperture as the exposure detection aperture when both the first aperture and the second aperture are driven a predetermined number of times or more. The imaging device according to any one of configurations 1 to 4.
(Configuration 8)
A lens device including the first optical system and the second optical system is removably and communicably attached to the imaging device,
According to any one of configurations 1 to 7, the control means receives information indicating the exposure detection aperture from the lens device, and controls driving of the exposure detection aperture based on the information. imaging device.
(Configuration 9)
The control means includes:
obtaining the difference between the target aperture value obtained from the result of the exposure detection and the actual aperture value of the first aperture and the difference between the target aperture value and the actual aperture value of the second aperture;
Any one of configurations 1 to 8, characterized in that during the imaging, one of the first aperture and the second aperture having the larger difference is driven toward the target aperture value before the other aperture. The imaging device according to item 1.
(Configuration 10)
comprising a display means for displaying an image generated using the signal from the image sensor,
When the images displayed on the display means are two images obtained through each of the first optical system and the second optical system, the aperture value set by the user and the first aperture and the second aperture 10. The imaging device according to any one of configurations 1 to 9, further comprising an image processing unit that performs exposure correction processing on each of the two images based on an actual aperture value of the aperture.
(Configuration 11)
A lens device having a first optical system and a second optical system arranged to create parallax, and detachably and communicably attached to an imaging device that performs exposure detection and imaging,
Driving means for driving a first aperture included in the first optical system and a second aperture included in the second optical system;
A lens device comprising: transmitting means for transmitting information indicating one of the first aperture and the second aperture to be driven during the exposure detection to the imaging device.
(Configuration 12)
When taking the image, the control means includes a control means for causing the driving means to drive the first aperture and the second aperture in accordance with an instruction from the imaging device,
During the exposure detection, the control means causes the driving means to drive the exposure detection aperture and disables the other aperture in response to an instruction from the imaging device that has received information indicating the exposure detection aperture. The lens device according to configuration 11, characterized in that the lens device is driven.

(Other examples)
The present invention provides a system or device with a program that implements one or more functions of the embodiments described above via a network or a storage medium, and one or more processors in a computer of the system or device reads and executes the program. This can also be achieved by processing. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

The embodiments described above are merely representative examples, and various modifications and changes can be made to each embodiment when implementing the present invention.

100 Camera body section 105 Image sensor 117 Exposure detection section 200 Compound lens section 201R First optical system 201L Second optical system 223R, 223L Aperture 240 Aperture drive section

Claims (16)

An imaging device that captures an image through a first optical system and a second optical system arranged so that parallax occurs,
an image sensor that converts object images formed by each of the first optical system and the second optical system into signals;
a detection unit that performs exposure detection using a signal from the image sensor;
A control means for controlling driving of a first aperture included in the first optical system and a second aperture included in the second optical system according to the result of the exposure detection during the imaging;
During the exposure detection, the control means may drive one of the first aperture and the second aperture to a state in which the exposure detection is possible as an exposure detection aperture, and leave the other aperture in a non-driven state. An imaging device characterized by: One of the first optical system and the second optical system is an optical system that serves as a reference for the exposure detection,
2. The imaging device according to claim 1, wherein the control means drives a diaphragm included in the one optical system of the first diaphragm and the second diaphragm as the exposure detection diaphragm. The imaging device according to claim 1, wherein the control means drives the aperture that is driven fewer times between the first aperture and the second aperture as the exposure detection aperture. comprising display means for displaying an image generated using the signal from the image sensor,
When the image displayed on the display means is only an image obtained through one of the first optical system and the second optical system, the control means controls the first aperture and the second aperture. The imaging device according to claim 1, wherein a diaphragm included in the one optical system is driven as the exposure detection diaphragm. 2. The control means is configured to drive one of the first aperture and the second aperture as the exposure detection aperture when a function of the imaging device is enabled by a user. 1. The imaging device according to 1. 2. The control means according to claim 1, wherein the control means drives one of the first aperture and the second aperture as the exposure detection aperture when the remaining battery power of the imaging device is less than or equal to a predetermined remaining power. The imaging device described. The control means may drive one of the first aperture and the second aperture as the exposure detection aperture when both the first aperture and the second aperture are driven a predetermined number of times or more. The imaging device according to claim 1. A lens device including the first optical system and the second optical system is removably and communicably attached to the imaging device,
The imaging device according to claim 1, wherein the control means receives information indicating the exposure detection aperture from the lens device, and controls driving of the exposure detection aperture based on the information. The control means includes:
obtaining the difference between the target aperture value obtained from the result of the exposure detection and the actual aperture value of the first aperture and the difference between the target aperture value and the actual aperture value of the second aperture;
2. The aperture according to claim 1, wherein during the imaging, one aperture having a larger difference between the first aperture and the second aperture is driven toward the target aperture value before the other aperture. Imaging device. comprising display means for displaying an image generated using the signal from the image sensor,
When the images displayed on the display means are two images obtained through each of the first optical system and the second optical system, the aperture value set by the user and the first aperture and the second aperture 2. The imaging apparatus according to claim 1, further comprising image processing means for performing exposure correction processing on each of the two images based on an actual aperture value of an aperture. A lens device having a first optical system and a second optical system arranged to create parallax, and detachably and communicably attached to an imaging device that performs exposure detection and imaging,
Driving means for driving a first aperture included in the first optical system and a second aperture included in the second optical system;
A lens device comprising a transmitting means for transmitting information indicating one of the first aperture and the second aperture to be driven during the exposure detection to the imaging device. During the imaging, the control means includes a control means for causing the driving means to drive the first aperture and the second aperture in response to an instruction from the imaging device,
During the exposure detection, the control means causes the drive means to drive the exposure detection aperture and disables the other aperture in response to an instruction from the imaging device that has received information indicating the exposure detection aperture. The lens device according to claim 10, wherein the lens device is driven. An imaging device that captures an image through a first optical system and a second optical system arranged so that parallax occurs, and converts a subject image formed by each of the first optical system and the second optical system into a signal. A method for controlling an imaging device having an imaging element, the method comprising:
performing exposure detection using a signal from the image sensor;
During the imaging, the method further comprises the step of controlling driving of a first aperture included in the first optical system and a second aperture included in the second optical system according to the result of the exposure detection;
In the exposure detection, one of the first aperture and the second aperture is driven as an exposure detection aperture to a state in which the exposure detection is possible, and the other aperture is not driven. control method. A method for controlling a lens device that is detachably and communicably attached to an imaging device that performs exposure detection and imaging, the lens device having a first optical system and a second optical system arranged to create parallax,
During the imaging, driving a first aperture included in the first optical system and a second aperture included in the second optical system;
A control method comprising the step of transmitting information indicating one of the first aperture and the second aperture to be driven during the exposure detection to the imaging device. A program that causes a computer of the imaging device to execute processing according to the control method according to claim 13. A program for causing a computer of the lens device to execute processing according to the control method according to claim 14.