WO2015146971A1 - シャッタ装置および撮像装置 - Google Patents
シャッタ装置および撮像装置 Download PDFInfo
- Publication number
- WO2015146971A1 WO2015146971A1 PCT/JP2015/058896 JP2015058896W WO2015146971A1 WO 2015146971 A1 WO2015146971 A1 WO 2015146971A1 JP 2015058896 W JP2015058896 W JP 2015058896W WO 2015146971 A1 WO2015146971 A1 WO 2015146971A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light shielding
- shielding member
- traveling
- imaging
- light
- Prior art date
Links
- 238000003384 imaging method Methods 0.000 claims description 153
- 230000004907 flux Effects 0.000 claims description 40
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 description 32
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 21
- 230000003287 optical effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 108010076504 Protein Sorting Signals Proteins 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/53—Control of the integration time
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/36—Sliding rigid plate
- G03B9/40—Double plate
- G03B9/42—Double plate with adjustable slot; with mechanism controlling relative movement of plates to form slot
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
Definitions
- the present invention relates to a shutter device and an imaging device.
- the shutter device is positioned in front of the imaging surface of the image sensor, travels along a predetermined traveling direction, shields the light beam from the subject, and the image sensor.
- a second light shielding member that travels along the traveling direction and shields the light beam, and has a length of a light shielding range of the first light shielding member in the traveling direction and a second light shielding member in the traveling direction. At least one of the lengths of the light shielding range is shorter than the length of the imaging surface in the traveling direction.
- the shutter device travels along a travel direction on a substrate member provided with an opening for guiding a light beam from a subject to the image sensor, and on a plane parallel to the image capturing surface of the image sensor.
- a first light shielding member that shields the light flux by passing through the opening and a first light shielding member that shields the light flux by running along the traveling direction on a plane parallel to the imaging surface of the image sensor and passing through the opening.
- At least one of the length of the light shielding range in the traveling direction of the first light shielding member and the length of the light shielding range in the traveling direction of the second light shielding member is shorter than the length of the opening in the traveling direction. .
- the length of the imaging surface of the imaging element in the traveling direction is smaller than the length of the opening in the traveling direction, and the traveling direction of the first light shielding member. It is preferable that at least one of the length of the light shielding range and the length of the light shielding range in the traveling direction of the second light shielding member is shorter than the length of the imaging surface in the traveling direction.
- at least one of the first light shielding member and the second light shielding member is constituted by a single light shielding blade. .
- an imaging apparatus includes a shutter device according to any one of the first to fourth aspects, an imaging element in which a plurality of pixels are arranged in a matrix, and a reset for each pixel row by the imaging element. And a control unit that controls reading of the imaging signal, and the control unit resets the image sensor for each pixel row in accordance with traveling along the traveling direction of the first light shielding member, or travel direction of the second light shielding member.
- the image pickup signal for each pixel row is read out from the image pickup device in accordance with traveling along the line.
- the control unit resets the pixel rows included in the region where the light beam is shielded by the first light shielding member on the imaging element. It is preferable to carry out.
- the shutter device further includes a first drive mechanism that causes the first light shielding member to travel at a first speed along the traveling direction, and the first light shielding member. The length of the light shielding range in the traveling direction is preferably longer than the length determined based on the first speed and the time required for resetting for each pixel row.
- the shutter device further includes a first detection unit that detects a traveling position where the first light shielding member is traveling along the traveling direction, The control unit preferably controls the timing for starting resetting the pixel rows based on the travel position detected by the first detection unit.
- the control unit includes a pixel row included in a region where the light beam is shielded by the second light shielding member on the imaging element. It is preferable to read out the imaging signal.
- the shutter device further includes a second drive mechanism that causes the second light shielding member to travel at the second speed along the traveling direction, and the second light shielding member.
- the length of the light-shielding range in the traveling direction is preferably longer than the length determined based on the second speed, the time required for reading the imaging signal for each pixel row, and the length of the imaging surface in the traveling direction. .
- the shutter device further includes a second detection unit that detects a traveling position where the second light shielding member is traveling along the traveling direction, It is preferable that the control unit controls the timing to start reading of the imaging signal for the pixel row based on the travel position detected by the second detection unit.
- the shutter device includes a substrate member provided with an opening that guides the light flux from the subject to the image sensor, and travels on the incident light side of the light flux from the image sensor and passes through the aperture.
- the first light shielding member partially shields the opening at the position where the traveling is started.
- the first light shielding member travels while partially shielding the opening when photographing with the image sensor.
- the shutter device according to the thirteenth aspect further includes a biasing member that applies a biasing force for traveling to the first light shielding member, and the first light shielding member includes the biasing member. It is preferable that the opening is partially shielded from light at the charging position for charging. According to the fifteenth aspect of the present invention, in the shutter device according to the thirteenth or fourteenth aspect, it is preferable that the second light shielding member partially shields the opening at the position where the traveling is finished.
- an imaging apparatus includes a shutter device according to the thirteenth or fourteenth aspect, an imaging element in which a plurality of pixels are arranged in a matrix, a reset and an imaging signal for each pixel row by the imaging element.
- a control unit that controls reading of the image sensor, and the control unit resets the image sensor for each pixel row in accordance with traveling along the traveling direction of the first light shielding member, or along the traveling direction of the second light shielding member.
- the image pickup signal for each pixel row is read out from the image pickup device according to traveling.
- the shutter device includes a substrate member provided with an opening that guides the light beam from the subject to the image sensor, and travels on the incident light side of the light beam from the image sensor and passes through the opening.
- the second light shielding member partially shields the opening at the position where the traveling is finished.
- an imaging device includes a shutter device according to the seventeenth or eighteenth aspect, an imaging element in which a plurality of pixels are arranged in a matrix, and reset and imaging for each pixel row by the imaging element.
- a control unit that controls reading of the signal, and the control unit resets the image sensor for each pixel row in accordance with traveling along the traveling direction of the first light shielding member or in the traveling direction of the second light shielding member.
- the image pickup signal for each pixel row is read out from the image pickup device in accordance with the traveling along.
- At least one of the lengths of the light shielding range of the first light shielding unit or the second light shielding unit in the traveling direction is made shorter than the length of the imaging surface in the traveling direction to reduce power consumption and durability. And the curtain speed can be improved.
- FIG. 1 is a configuration diagram of a main part of an imaging apparatus according to an embodiment of the invention
- the top view which shows typically the structure of the shutter apparatus by embodiment
- the figure which shows typically the relationship between the position of the lower end and upper end of a rear-curtain blade
- Timing chart for explaining the operation of the shutter device according to the second embodiment
- the top view which shows typically the relationship between the opening in 3rd Embodiment, and the imaging area of an image pick-up element Timing chart for explaining the operation of the shutter device according to the third embodiment
- the figure which shows typically the structure of the shutter apparatus by 4th Embodiment.
- FIG. 1 is a diagram for explaining a main configuration of a digital camera 1 that is an image pickup apparatus according to the first embodiment.
- the digital camera 1 is a so-called mirrorless camera including a camera body 20 and a lens barrel 10 that can be attached to and detached from the camera body 20 via a lens mount 9.
- the lens barrel 10 includes an imaging optical system 11 and a diaphragm 12.
- the imaging optical system 11 is an optical system for forming a subject image on a predetermined imaging surface, and is composed of a plurality of lenses including a focus adjustment lens.
- the focus adjustment lens moves forward and backward in the direction of the optical axis L by the operation of a lens driving motor (not shown).
- the imaging optical system 11 is schematically shown as a single lens.
- the diaphragm 12 limits a light beam passing through the imaging optical system 11, that is, an incident light amount.
- a shutter device 21, an image sensor 22, and a control device 26 are provided.
- a back monitor 30 constituted by a display device such as a liquid crystal display is provided on the back surface of the camera body 20.
- the camera body 20 is provided with an operation unit 40.
- the image pickup device 22 is an image pickup device such as a CMOS having a large number of pixels arranged in a matrix, and is arranged so that the image pickup surface is positioned on the image formation surface of the image formation optical system 11.
- the imaging element 22 captures a subject image formed on the imaging surface by the imaging optical system 11 via the shutter device 21, and outputs an imaging signal to the control device 26.
- various optical filters such as an infrared cut filter are provided on the imaging surface of the imaging element 22.
- a plurality of pixels constituting the image sensor 22 are two-dimensionally arranged in a pixel row direction (X-axis direction in FIG. 2 described later) and a pixel column direction orthogonal to the pixel row direction (Y-axis direction in FIG. 2 described later). The pixel reset and the readout of the imaging signal are performed at different timings for each pixel row at different positions in the pixel column direction.
- the shutter device 21 is provided on the front surface (subject side) of the image sensor 22 and is driven in accordance with a drive signal from a control device 26 described later, thereby shielding a light beam incident from the subject toward the image sensor 22. It is a focal plane shutter. The details of the shutter device 21 will be described later.
- the control device 26 is composed of a microprocessor and its peripheral circuits and the like, and by reading and executing a control program stored in advance in a storage medium (not shown) (for example, a flash memory), each part of the digital camera 1 is controlled. Control.
- the control device 26 performs various image processing on the imaging signal output from the imaging element 22 to generate image data of the subject image, and generates the image data on a portable storage medium (not shown) (for example, a memory card). Record image data.
- the control device 26 controls the operations of the shutter device 21 and the image sensor 22 as will be described in detail later. Note that the control device 26 may be configured by an electronic circuit having a function equivalent to that of the control program.
- the operation unit 40 includes various switches provided corresponding to various operation members operated by the user, and outputs an operation signal corresponding to the operation of the operation member to the control device 26.
- the operation member determines, for example, a release button, a menu button for displaying a menu screen on the rear monitor 30, a cross key operated when selecting and operating various settings, a setting selected by the cross key, and the like. And a mode switching button for switching the operation of the digital camera 1 between the shooting mode and the playback mode.
- FIG. 2 is a plan view schematically showing the shutter device 21.
- the shutter device 21 includes a substrate 210, a front curtain 211, a rear curtain 212, a front curtain drive member 213, and a rear curtain drive member 214.
- the substrate 210 is fixed inside the camera body 20 and has an opening 215 for exposing the image sensor 22 with a subject light beam.
- the opening 215 is formed in a rectangular shape surrounded by two sides extending along the X axis and two sides extending along the Y axis.
- the Y-axis side of the opening 215 is the upper end 215U
- the Y-axis + side is the lower end 215B
- the length in the Y-axis direction between the upper end 215U and the lower end 215B is L0.
- the front curtain 211 is composed of a single blade, and is formed, for example, in two sides extending along the X axis and a rectangular shape extending along the Y axis.
- the length L1 along the traveling direction of the shutter blades 211 and the rear curtain 212) is shorter (smaller) than the length L0 along the Y-axis direction of the opening 215.
- the front curtain 211 can cover only a part of the opening 215, that is, the front curtain 211 has a structure in which the light shielding range in the traveling direction is shorter than the length of the opening 215 in the traveling direction.
- the front curtain 211 that does not cover the entire opening 215 moves (runs) along the Y-axis direction by a front curtain driving member 213, which will be described later, with the upper end 211U kept parallel to the upper end 215U and the lower end 215B of the opening 215.
- the front curtain 211 is described as traveling on the front surface (subject side) of the opening 215.
- the front curtain 211 also operates on the rear surface of the opening 215 (imaging element 22 side). It is included in one aspect.
- the rear curtain 212 is composed of a single blade, and is formed in, for example, a rectangular shape extending along two sides extending along the X axis and along the Y axis.
- the length L2 along the traveling direction) is shorter (smaller) than the length L0 along the Y-axis direction of the opening 215.
- the rear curtain 212 can cover only a part of the opening 215, that is, the rear curtain 212 has a structure in which the light shielding range in the traveling direction is shorter than the length of the opening 215 in the traveling direction.
- the rear curtain 212 that does not cover the entire opening 215 is moved (running) along the Y-axis direction by a rear curtain driving member 214 described later, with the lower end 212B kept parallel to the upper end 215U and the lower end 215B of the opening 215.
- the vehicle travels along the Y-axis direction with the upper end 211U of the front curtain 211 and the lower end 212B of the rear curtain 212 kept parallel to each other.
- the rear curtain 212 is described as traveling on the front surface (subject side) of the opening 215.
- the rear curtain 212 also operates on the rear surface of the opening 215 (imaging element 22 side). It is included in one aspect.
- the length L1 of the front curtain 211 in the Y-axis direction and the length L2 of the rear curtain 212 in the Y-axis direction will be described later.
- both the front curtain 211 and the rear curtain 212 are configured by a single blade, but may be configured by a plurality of blades. Also in this case, the front curtain 211 and the rear curtain 212 may be configured not to cover the entire opening 215.
- the front curtain drive member 213 includes a first front curtain drive arm 213a, a second front curtain drive arm 213b, shafts 213c and 213d, and connecting pins 213e and 213f.
- a front curtain 211 is pivotally fixed to end portions on the X axis + side of the first front curtain drive arm 213a and the second front curtain drive arm 213b by connecting pins 213e and 213f. Ends on the X-axis side of the first front curtain drive arm 213a and the second front curtain drive arm 213b are pivotally supported on the substrate 210 by shafts 213c and 213d provided on the surface of the substrate 210.
- the first front curtain drive arm 213a and the second front curtain drive arm 213b are respectively connected to a shaft 213c and a shaft 213c by a known drive mechanism (not shown) including an electric motor and a spring in response to a drive signal from the control device 26. It is rotationally driven on a plane parallel to the XY plane with 213d as the center.
- a known drive mechanism including an electric motor and a spring in response to a drive signal from the control device 26. It is rotationally driven on a plane parallel to the XY plane with 213d as the center.
- the front curtain 211 travels along the Y-axis direction.
- the front curtain 211 is set so as to travel in the Y axis + direction at the traveling speed v1.
- the rear curtain drive member 214 includes a first rear curtain drive arm 214a, a second rear curtain drive arm 214b, shafts 214c and 214d, and connecting pins 214e and 214f.
- a rear curtain 212 is pivotally fixed to end portions on the X axis + side of the first rear curtain drive arm 214a and the second rear curtain drive arm 214b by connecting pins 214e and 214f. Ends on the X-axis side of the first rear curtain drive arm 214a and the second rear curtain drive arm 214b are pivotally supported on the substrate 210 by shafts 214c and 214d provided on the surface of the substrate 210.
- the first rear curtain drive arm 214a and the second rear curtain drive arm 214b are respectively connected to the shaft 214c and the shaft 214c by a known drive mechanism (not shown) including an electric motor and a spring in response to a drive signal from the control device 26. It is driven to rotate in a plane parallel to the XY plane with 214d as the center. As the first rear curtain drive arm 214a and the second rear curtain drive arm 214b are rotationally driven as described above, the rear curtain 212 travels along the Y-axis direction. The rear curtain 212 is set so as to travel in the Y axis + direction at the traveling speed v2.
- the front curtain 211 is opened by the urging force of the spring that constitutes the drive mechanism of the first front curtain drive arm 213a and the second front curtain drive arm 213b.
- 215 is retained and stored at the front curtain storage position on the Y axis + side from the lower end 215B.
- the rear curtain 212 is stored while being stored at the rear curtain storage position on the Y-axis side with respect to the upper end 215U of the opening 215 by charging a spring constituting the drive mechanism. That is, when the front curtain 211 and the rear curtain 212 are stored in the storage positions, the opening 215 is not shielded by the front curtain 211 and the rear curtain 213.
- the control device 26 outputs a driving signal to the driving mechanism, causes the front curtain 211 to travel to the Y-axis-side charging position with the driving force of the electric motor, and simultaneously charges the spring. To do.
- the control device 26 When the front curtain 211 travels to the charge position, the control device 26 outputs a drive signal to the drive mechanism to start travel of the front curtain 211 in the Y-axis direction + side by the driving force of the spring. To run. When the time corresponding to the exposure time elapses after the front curtain 211 starts running, the control device 26 outputs a drive signal to the drive mechanism, and the Y of the rear curtain 212 stored in the storage position by the driving force of the spring. Starts traveling in the axial direction + side.
- the rear curtain 212 travels to a position where the lower end 212B of the rear curtain 212 is on the + side in the Y-axis direction by a predetermined distance from the lower end 215B of the opening 215 (hereinafter referred to as a travel end position).
- a travel end position a position where the lower end 212B of the rear curtain 212 is on the + side in the Y-axis direction by a predetermined distance from the lower end 215B of the opening 215 (hereinafter referred to as a travel end position).
- the lengths L1 and L2 of the front curtain 211 and the rear curtain 212 in the Y-axis direction are shorter than the length L0 of the side of the opening 215 in the Y-axis direction. Even if the curtain 212 travels in the Y-axis direction, a part of the opening 215 is shielded from the subject light flux. For this reason, the control device 26 controls the pixel reset timing for each pixel row along the X-axis direction that constitutes the imaging element 22 by following the traveling of the front curtain 211 in the Y-axis direction. That is, the control device 26 causes the pixel reset to be performed on the pixel rows included in the region where the subject luminous flux is shielded by the traveling of the front curtain 211.
- control device 26 follows the traveling of the trailing curtain 212 in the Y-axis direction, and controls the timing of starting readout of the imaging signal for each pixel row constituting the imaging device 22. That is, charge readout is performed on the pixel rows included in the area where the subject luminous flux is shielded by the running of the rear curtain 212.
- the traveling speed v1 of the front curtain 211 and the traveling speed v2 of the rear curtain 212 are constant.
- the length L1 of the front curtain 211 in the Y-axis direction prevents at least the subject light beam from being irradiated to the pixel row that is being reset, but the traveling speed v1 of the front curtain 211 and the image sensor 22 reset the pixel for the entire pixel row.
- the minimum design length can be set to the pixel pitch p by matching the pixel reset speed by t_reset (hereinafter, reset time, which can usually be arbitrarily set).
- reset time which can usually be arbitrarily set.
- the axial length L1 is determined so as to satisfy the following expression (1).
- ⁇ L11 is a constant, a margin for deformation during travel due to manufacturing errors and material strength of the front curtain 211, a margin for preventing the influence of light that wraps around the end of the front curtain 211 in the Y-axis direction, and pixel reset
- the margin for the synchronization error between the speed and the traveling speed v1 of the front curtain 211 is determined by experiments or the like.
- the length L2 of the trailing curtain 212 in the Y-axis direction is determined as follows so that the subject luminous flux is not irradiated to the pixel in the middle of reading the stored charge.
- FIG. 3 schematically shows the relationship between the positions of the upper end 212U and the lower end 212B of the rear curtain 212, the position of the opening 215, and the time (reading time) required for each pixel row of the image sensor 22 to read out the imaging signal.
- the condition for preventing the subject light beam from being irradiated to the pixel during which the imaging signal is being read is that the upper end 212U of the trailing curtain 212 in FIG. It is above the line (Y axis minus side). Therefore, it is necessary to pass at least the point E in FIG.
- the length L0_end in the Y-axis direction of the area of the opening 215 that does not need to be shielded by the rear curtain 212 is the length in the Y-axis direction of the imaging surface where the readout of the imaging signal has been completed at the end of traveling, that is, FIG.
- the lower end 212B of the rear curtain 212 travels by a predetermined distance ⁇ L2 from the lower end 215B of the opening 215 to the travel end position on the Y axis + side, so the length L2 of the rear curtain 212 in the Y axis direction is designed.
- L2_min + ⁇ L2 the minimum length
- margin ⁇ L21 the margin ⁇ L21 for each error, etc.
- the traveling speed of the blades is constant. However, in actuality, the traveling speed is slow immediately after the start and gradually increases with acceleration. Even in such a case, the same can be considered. That is, in the case of the front curtain 211, the speed characteristics of the pixel reset are made to coincide with the speed characteristics of the blades, and in the case of the rear curtain 212, a point corresponding to the point E in FIG. In the same manner as described above, the design minimum length of each blade (the minimum length of the light shielding range in the traveling direction of each blade) is determined, and further measures such as providing a margin in the length of the blade in the traveling direction are taken. Just do it.
- both the front curtain 211 and the rear curtain 212 are constituted by a plurality of blades
- the lower end 211B of the front curtain 211 and the upper end 212U of the rear curtain 212 may be replaced with the travel speed of the final blade.
- FIG. 4A is a time chart showing the operation of the front curtain 211 and the rear curtain 212 after the user operates the release button to give a shooting instruction.
- FIGS. It is a figure which shows typically the position on the XY plane of the front curtain 211 and the rear curtain 212 in timing.
- the front curtain 211 is in the retracted position on the Y axis + side of the lower end 215B of the opening 215 and the rear curtain 212 is the upper end of the opening 215 until the user operates the release button and gives an instruction for shooting.
- 215U is stored in the storage position on the Y-axis side. That is, until the time t0 shown in FIG. 4A, as shown in FIG. 4B, the front curtain 211 and the rear curtain 212 do not shield the subject luminous flux to the opening 215. In this state, a so-called live view display is performed in which the imaging signal is repeatedly read from the imaging element 22 and an image corresponding to the imaging signal is displayed on the rear monitor 30.
- the control device 26 outputs a drive signal to the drive mechanism, and the front curtain 211 is moved to the Y axis ⁇ by the drive force of the electric motor (not shown). Travel to the side and reach the charge position at time t2.
- the upper end 211U of the front curtain 211 is positioned on the Y axis-side by a predetermined distance from the upper end 215U of the opening 215, that is, the front curtain 211 Some shield a part of the aperture 215 from the subject light flux.
- the control device 26 outputs a drive signal, so that the front curtain 211 travels in the Y axis + direction by the drive force of a spring (not shown) that constitutes the drive mechanism.
- a drive signal that constitutes the drive mechanism.
- the upper end 211U of the front curtain 211 coincides with the upper end 215U of the opening 215 in the Y-axis direction at time t5.
- the light flux between the top end 211U of the front curtain 211 and the top end 215U of the opening 215 is not shielded, and the subject light flux passes therethrough.
- the control device 26 controls the image sensor 22 to start pixel reset sequentially from the pixel row at the Y-axis-side end.
- the predetermined time is set as a time during which the pixel row at the Y-axis-side end of the image sensor 22 does not reach the time t5 during pixel reset.
- Pixel reset for each pixel row of the image sensor 22 is performed until time t6.
- the front curtain 211 is stored in the storage position at time t7.
- the control device 26 outputs a drive signal, so that the rear curtain 212 is a spring (not shown) constituting a drive mechanism.
- the driving in the Y axis + direction is started by the driving force of.
- the lower end 212B of the trailing curtain 212 coincides with the lower end 215B of the opening 215 in the Y-axis direction at time t10, and FIGS. 4A and 4F are obtained.
- the travel end position is reached at time t11.
- the control device 26 controls the image sensor 22 and sequentially starts reading pixels from the pixel row at the Y-axis-side end.
- the imaging element 22 ends reading of the imaging signal from the pixel row at the Y-axis + side end at time t12.
- the control device 26 outputs a drive signal to the drive mechanism, and the rear curtain 212 is moved to the Y axis ⁇ by the drive force of the electric motor (not shown).
- the vehicle is caused to travel in the direction and stored in the storage position at time t14, and the operation control of the shutter device 21 during photographing is finished.
- step S1 it is determined whether or not the release button has been fully pressed by the user and a shooting instruction has been issued. If an operation signal is output from the operation unit 40 in response to the full pressing operation of the release button, an affirmative determination is made in step S1 and the process proceeds to step S2. If the release button is not operated and no operation signal is output from the operation unit 40, a negative determination is made in step S1, and the process is repeated.
- step S2 a drive signal is output, and the driving mechanism causes the front curtain 211 to travel to the charge position, and the process proceeds to step S3.
- step S3 traveling of the front curtain 211 in the Y axis + direction is started, and the process proceeds to step S4.
- step S4 after a predetermined time has elapsed since the front curtain 211 started running, pixel reset is sequentially performed from the pixel row at the Y-axis-side end of the image sensor 22, and the process proceeds to step S5.
- step S5 it is determined whether or not the time corresponding to the exposure time has elapsed since the front curtain 211 started running. If the time corresponding to the exposure time has elapsed, an affirmative determination is made in step S5 and the process proceeds to step S6. If the time corresponding to the exposure time has not elapsed, a negative determination is made in step S5 and the process is repeated.
- step S6 the trailing curtain 212 starts to travel in the Y axis + direction, and the process proceeds to step S7.
- step S7 the image pickup signal is sequentially read from the pixel row at the end of the image pickup element 22 in the Y-axis direction, and the process proceeds to step S8.
- step S8 it is determined whether or not the readout of the imaging signals from all the pixel rows of the imaging element 22 has been completed.
- an affirmative determination is made in step S8 and the process proceeds to step S9. If reading of the imaging signals from all the pixel rows has not been completed, a negative determination is made in step S8 and the process is repeated.
- step S9 the trailing curtain 212 is moved to the storage position, and the process is terminated.
- the shutter device 21 included in the digital camera 1 is located in front of the imaging surface of the image sensor 22, is located in front of the imaging surface of the image sensor 22, the front curtain 211 that travels along the Y-axis direction, And a rear curtain 212 that travels along the Y-axis direction.
- the length L1 of the front curtain 211 in the Y-axis direction and the length L2 of the rear curtain 212 in the Y-axis direction are made smaller than the length L0 of the opening 215 in the Y-axis direction.
- the front curtain 211 and the rear curtain 212 do not shield the entire area of the opening 215, the area of the front curtain 211 and the rear curtain 212 can be reduced as compared with the conventional front curtain and rear curtain, thereby reducing the manufacturing cost. And contributes to weight reduction. Furthermore, as the front curtain 211 and the rear curtain 212 become lighter, the power consumption for driving the front curtain 211 and the rear curtain 212 can be reduced. In addition, the weight reduction reduces the impact during travel of the front curtain 211 and the rear curtain 212, thereby improving the durability and improving the quietness of the operation of the shutter device 21.
- the traveling speed (curtain speed) can be improved by reducing the weight of the front curtain 211 and the rear curtain 212, the image quality can be improved by suppressing the occurrence of distortion in the subject on the captured image during moving body photography.
- the strobe tuning speed can be increased.
- the front curtain 211 and the rear curtain 212 are each composed of a single blade. Therefore, compared with the conventional front curtain and rear curtain having a plurality of blades, the connecting pins 213e, 213f, and 214e for attaching the front curtain 211 and the rear curtain 212 to the front curtain driving member 213 and the rear curtain driving member 214, respectively.
- the number of 214f and the number of 214f can be reduced to contribute to cost reduction, and the number of caulking locations can be reduced, so that productivity can be improved.
- the front curtain 211 and the rear curtain 212 are reduced in weight, reducing power consumption, improving durability, improving quietness, and increasing the curtain speed. realizable.
- the front curtain 211 and the rear curtain 212 are configured by a plurality of blades, if the entire opening 215 is not covered but only a part thereof is covered, the entire opening 215 is covered. Compared with the conventional leading curtain and trailing curtain, the above-described effects can be obtained.
- the control device 26 causes the imaging device 22 in which a plurality of pixels are arranged in a matrix to perform pixel reset for each pixel row in accordance with the traveling along the Y-axis direction of the front curtain 211, and The imaging signal is read for each pixel row in accordance with the movement of the curtain 212 along the Y-axis direction. Specifically, the control device 26 causes the pixel row included in the area where the light beam from the subject is shielded by the front curtain 211 on the image sensor 22 to perform pixel reset, and the rear curtain 212 removes the subject from the subject. The imaging signal is read out from the pixel rows included in the area where the luminous flux is shielded.
- the rear curtain and the electronic front curtain intersect the optical axis L as in the conventional electronic front curtain system. Unlike traveling on different planes, it is possible to prevent the occurrence of uneven exposure and chipping of a blurred image and contribute to the improvement of the image quality of the photographed image. Furthermore, unlike the conventional rolling shutter system, it is possible to prevent the moving subject on the captured image from being distorted and improve the image quality.
- FIG. 6A is a time chart showing the operation of the front curtain 211 and the rear curtain 212 after the release button is operated by the user and a shooting instruction is given.
- FIGS. It is a figure which shows typically the position on the XY plane of the front curtain 211 and the rear curtain 212 in timing.
- the front curtain 211 and the rear curtain 212 are driven by their respective drive mechanisms until the user operates the release button and gives an instruction for shooting. Is stored in a storage position where the subject luminous flux on the Y axis minus side from the upper end 215U of the opening 215 is not shielded. In this state, a so-called live view display is performed in which the imaging signal is repeatedly read from the imaging element 22 and an image corresponding to the imaging signal is displayed on the rear monitor 30.
- the control device 26 outputs a drive signal to the drive mechanism, so that the drive force of the spring increases.
- the curtain 211 starts traveling in the Y axis + direction.
- the control device 26 controls the shutter device 21 and the image sensor 22 in the same manner as in the first embodiment. That is, as shown in FIGS. 6A and 6C, at time t4, the control device at time t4 until the upper end 211U of the front curtain 211 coincides with the upper end 215U of the opening 215 in the Y-axis direction. 26 controls the image sensor 22 to start the pixel reset sequentially from the pixel row at the Y-axis-end, and to perform the pixel reset for all the pixel rows until time t6.
- the control device 26 outputs a drive signal, and the rear curtain 212 moves in the Y axis + direction by the driving force of the spring.
- the lower end 212B of the rear curtain 212 coincides with the lower end 215B of the opening 215 in the Y-axis direction at time t10.
- the trailing curtain 212 reaches the travel end position at time t11.
- control device 26 controls the image sensor 22 to start pixel readout sequentially from the pixel row at the Y-axis end, Until t12, the readout of the imaging signal from the pixel row on the Y axis + side end is completed.
- the control device 26 is configured to store the front curtain 211 and the rear curtain 212 in the storage position so that the electric motors constituting the respective drive mechanisms are stored. Drives in the Y-axis direction with the driving force of and charges each spring.
- the rear curtain 212 is stored in the storage position at time t14
- the front curtain 211 is stored in the storage position at time t15. It should be noted that the front curtain 211 and the rear curtain 212 are not limited to those that simultaneously travel toward the storage position at time t13, and the timing of starting travel to the storage position is different between the front curtain 211 and the rear curtain 212.
- traveling may be started from the front curtain 211, or traveling may be started from the rear curtain 212.
- traveling may be started from the front curtain 211, or traveling may be started from the rear curtain 212.
- the leading curtain 211 and the trailing curtain 212 are stored in the storing position, or the leading curtain 211 and the trailing curtain 212 are substantially stored.
- Those stored in the storage position at the same time are also included in one embodiment of the present invention.
- the control device 26 of the digital camera 1 operates the shutter device 21 by performing the same processing as the flowchart shown in FIG. However, the process of step S2 (running the front curtain 211 to the charge position) shown in the flowchart of FIG. 5 is not performed, and the front curtain 211 and the rear curtain 212 are stored in the storage position in step S9.
- the following functions and effects can be obtained in addition to the functions and effects obtained by the first embodiment.
- the release button is operated, it is not necessary to move the front curtain 211 from the retracted position provided on the Y axis + side to the charge position with respect to the lower end 215B of the opening 215. Therefore, compared with the first embodiment.
- the time lag can be shortened.
- FIG. 1 A digital camera according to the third embodiment of the present invention will be described.
- the same components as those in the first embodiment are denoted by the same reference numerals, and different points will be mainly described. Points that are not particularly described are the same as those in the first embodiment.
- the present embodiment is different from the first embodiment in that the area of the imaging region by the imaging element is smaller than the opening area.
- FIG. 7 is a plan view schematically showing the relationship between the opening 215 and the imaging region 221 of the imaging element 22, and a coordinate system composed of the X axis and the Y axis is set as in FIG.
- the imaging region 221 of the imaging element 22 is set inside a rectangular region surrounded by a broken line. That is, the length L3 along the Y-axis direction between the Y-axis-side end (hereinafter referred to as the upper end) 221U and the Y-axis + side end (hereinafter referred to as the lower end) 221B of the imaging region 221 is Y It is set smaller than the axial length L0.
- the length L2 of the rear curtain 212 in the present embodiment in the Y-axis direction is It is determined so as to satisfy the condition of the following formula (8).
- ⁇ L21 in Expression (8) is a distance from the lower end 221B of the imaging region 221 to the travel end position of the lower end 212B of the rear curtain 212.
- FIG. 8A is a time chart showing the operation of the front curtain 211 and the rear curtain 212 after the release button is operated by the user and a shooting instruction is given.
- FIGS. 8B to 8F are each a time chart. It is a figure which shows typically the position on the XY plane of the front curtain 211 and the rear curtain 212 in timing.
- the front curtain 211 is stored in the storage position on the lower end 215B side of the opening 215 and the rear curtain 212 is opened until the release button is operated.
- 215 is stored in the storage position on the upper end 215U side.
- a so-called live view display is performed in which the imaging signal is repeatedly read from the imaging element 22 and an image corresponding to the imaging signal is displayed on the rear monitor 30.
- the control device 26 outputs a drive signal to the drive mechanism, so that the front curtain 211 is charged on the Y axis-side by the drive force of the electric motor. Start driving to the position.
- the front curtain 211 reaches the charging position at time t2, and the spring is charged.
- the upper end 211U of the front curtain 211 is located on the Y axis-side by a predetermined distance from the upper end 215U of the opening 215, that is, the front curtain 211 A part shields the aperture 215 and a part of the imaging region 221 of the imaging element 22 from the subject light flux.
- the control device 26 outputs a drive signal to start traveling the front curtain 211 in the Y axis + direction by the driving force of the spring.
- the upper end 211U of the front curtain 211 and the upper end 221U of the imaging region 221 coincide with each other in the Y-axis direction at time t5.
- the light flux of the subject passes through without being shielded between the upper end 211U of the front curtain 211 and the upper end 221U of the imaging region 221.
- the control device 26 controls the image sensor 22 to start pixel reset sequentially from the pixel row at the upper end 221U of the imaging region 221. Pixel reset for each pixel row of the image sensor 22 is performed until time t6.
- the length L1 of the front curtain 211 in the Y-axis direction is determined based on the equation (1), the subject luminous flux is not irradiated to the pixel row during pixel reset. Thereafter, the front curtain 211 is stored in the storage position at time t7.
- the control device 26 At time t8 when the time corresponding to the exposure time has elapsed from time t3 when the front curtain 211 started traveling, the control device 26 outputs a drive signal, so that the rear curtain 212 is driven in the Y axis + direction by the driving force of the spring. Start driving to. Thereafter, as shown in FIGS. 8A and 8E, the lower end 212B of the trailing curtain 212 coincides with the lower end 221B of the imaging region 221 in the Y-axis direction at time t10, and FIGS. As shown, the vehicle reaches the travel end position at time t11.
- the control device 26 controls the image sensor 22 and starts reading pixels sequentially from the pixel row at the upper end 221U of the imaging area 221.
- the subject luminous flux is not irradiated to the pixel row during pixel readout.
- the imaging device 22 ends reading of the imaging signal from the pixel row at the lower end 221B of the imaging region 221 at time t12.
- the control device 26 causes the trailing curtain 212 to travel in the Y-axis direction by the driving force of the electric motor, and at time t14, the control device 26 moves to the storage position. By storing and charging the spring of the drive mechanism, the operation control of the shutter device 21 at the time of photographing is finished.
- the shutter device 21 included in the digital camera 1 is positioned in front of the imaging surface of the image sensor 22 and is positioned in front of the imaging surface of the image sensor 22 and the front curtain 211 that travels along the Y axis direction. And a rear curtain 212 that travels along.
- the length L1 of the front curtain 211 in the Y-axis direction and the length L2 of the rear curtain 212 in the Y-axis direction are set to be smaller than the length L3 of the imaging region 221 of the imaging element 22 in the Y-axis direction.
- ⁇ L2 can be approximately the same as that of the first embodiment.
- the front curtain 211 and the rear curtain 212 can be further reduced in weight, so that the manufacturing cost is reduced, the power consumption is reduced, the durability is improved, the quietness is improved, and the curtain speed is increased. Contributes to speeding up.
- the front curtain 211 and the rear curtain 212 are stored on the upper end 215U side of the opening 215, as in the second embodiment. What is stored in a position is also included in one embodiment of the present invention. In this case, as in the second embodiment, there is no need to move the front curtain 211 to the charge position after the release button is operated, so that the release time lag can be shortened.
- a digital camera according to the fourth embodiment of the present invention will be described.
- the same components as those in the first embodiment are denoted by the same reference numerals, and different points will be mainly described. Points that are not particularly described are the same as those in the first embodiment.
- the present embodiment is different from the first embodiment in that the positions of the front curtain and the rear curtain during traveling are detected, and the timing for starting the pixel reset and reading of the imaging signal is controlled based on the detected positions. Is different.
- FIG. 9 is a plan view schematically showing the shutter device 21 in the present embodiment.
- a coordinate system consisting of the X axis and the Y axis is set as shown.
- the position of the front curtain position detector 313 for detecting the position of the first front curtain drive arm 213a and the position of the second rear curtain drive arm 214b are detected.
- a rear curtain position detector 314 is attached.
- the front curtain position detector 313 is constituted by, for example, a photo interrupter, and each time a plurality of small holes 315 formed in a row along the rotation direction of the first front curtain drive arm 213a are detected, a pulse signal is controlled by the control device. 26.
- the rear curtain position detector 314 is configured by, for example, a photo interrupter, and each time a plurality of small holes 316 formed in a row along the rotation direction of the second rear curtain drive arm 214b are detected, a pulse signal is controlled by the control device. 26.
- the control device 26 detects the position of the lower end 211B or the upper end 211U of the front curtain 211 in the Y-axis direction by inputting a pulse signal sequence sequentially output from the front curtain position detector 313 with the storage position as a reference.
- the control device 26 determines that the detected position of the front curtain 211 is a predetermined position after the front curtain 211 starts traveling in the Y-axis + direction from the charge position, the control device 26 determines, for each pixel row, the image sensor 22. Start pixel reset.
- the predetermined position is a position of the front curtain 211 where the light beam from the subject is not irradiated to the pixel row during the pixel reset even while the front curtain 211 travels to the Y axis + side. It is set in advance.
- the control device 26 detects the position of the lower end 212B or the upper end 212U of the rear curtain 212 in the Y-axis direction by inputting a pulse signal sequence sequentially output from the rear curtain position detector 314 with the storage position as a reference.
- the control device 26 determines that the position of the detected rear curtain 212 is a predetermined position after the rear curtain 212 starts traveling in the Y-axis + direction from the storage position, the control device 26 determines that the position of the detected rear curtain 212 is a predetermined position. Reading of the imaging signal is started.
- the predetermined position is after the light beam from the subject is not irradiated to the pixel row in the middle of reading the imaging signal even while the rear curtain 212 travels to the Y axis + side.
- the position of the curtain 212 is preset.
- step S10 determination of whether or not the release button has been operated
- step S12 determination of whether or not the first curtain 211 has started running
- step S3 start of running the first curtain 211).
- step S13 it is determined whether or not the position of the front curtain 211 in the Y-axis direction is a predetermined position.
- step S13 If the front curtain 211 is traveling to a predetermined position, an affirmative determination is made in step S13 and the process proceeds to step S14. If the front curtain 211 has not traveled to the predetermined position, a negative determination is made in step S13 and the process is repeated.
- step S17 it is determined whether or not the position of the trailing curtain 212 in the Y-axis direction is a predetermined position. If the trailing curtain 212 is traveling to a predetermined position, an affirmative determination is made in step S17 and the process proceeds to step S18. If the trailing curtain 212 has not traveled to the predetermined position, a negative determination is made in step S17 and the process is repeated.
- step S18 reading image signal
- step S20 storage of rear curtain 212
- step S9 storage of rear curtain 212 in FIG. Process.
- the front curtain position detector 313 detects the position where the front curtain 211 travels along the Y-axis direction, and the control device 26 applies the image sensor 22 to the image sensor 22 when the detected position of the front curtain 211 is a predetermined position.
- pixel reset for each pixel row is started.
- the rear curtain position detector 314 detects the position where the rear curtain 212 is traveling along the Y-axis direction, and the control device 26 performs imaging when the detected position of the rear curtain 212 is a predetermined position.
- the element 22 is started to read the imaging signal for each pixel row.
- the traveling speed v1 of the front curtain 211 and the traveling speed v2 of the rear curtain 212 change due to, for example, deterioration over time, the pixel row during pixel reset or the pixel row during which accumulated pixels are being read out It can be shielded from the luminous flux. That is, the margins ⁇ L11 and ⁇ L21 of each blade can be designed to be small.
- the front curtain 211 and the rear curtain 212 are stored on the upper end 215U side of the opening 215, as in the second embodiment. What is stored in a position is also included in one embodiment of the present invention. In this case, as in the second embodiment, there is no need to move the front curtain 211 to the charge position after the release button is operated, so that the release time lag can be shortened.
- the front curtain 211 is formed to a length L1 that satisfies the condition of the expression (1)
- the rear curtain 212 is formed to have a length that can shield the entire area of the opening 215, and the front curtain 211 has the opening 215.
- the shutter device 21 is formed in such a length that can shield the entire area
- the rear curtain 212 is formed in a length that satisfies the condition of the expression (7) or (8).
- the digital camera 1 including such a shutter device 21 is also included in one aspect of the present invention.
- the number of blades is not limited to one, and a plurality of blades may be used. Also in this case, as described above, the length L1 of the front curtain 211 in the Y-axis direction satisfies the condition of the expression (1), and the length L2 of the rear curtain 212 in the Y-axis direction is the expression (7) or (8). It is formed to satisfy the following conditions.
- the present invention is not limited to the above-described embodiments, and other forms conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention. .
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
- Studio Devices (AREA)
Abstract
Description
本発明の第2の態様によると、シャッタ装置は、被写体からの光束を撮像素子へ導く開口部が設けられた基板部材と、撮像素子の撮像面に平行な平面上を走行方向に沿って走行して開口部を通過することにより光束を遮光する第1遮光部材と、撮像素子の撮像面に平行な平面上を走行方向に沿って走行して開口部を通過することにより光束を遮光する第2遮光部材と、を備え、第1遮光部材の走行方向における遮光範囲の長さおよび第2遮光部材の走行方向における遮光範囲の長さの少なくとも一方は、走行方向における開口部の長さよりも短い。
本発明の第3の態様によると、第2の態様のシャッタ装置において、撮像素子の撮像面の走行方向における長さは、開口部の走行方向における長さよりも小さく、第1遮光部材の走行方向における遮光範囲の長さおよび第2遮光部材の走行方向における遮光範囲の長さの少なくとも一方は、走行方向における撮像面の長さよりも短いことが好ましい。
本発明の第4の態様によると、第1乃至3の何れか一態様のシャッタ装置において、第1遮光部材および第2遮光部材の少なくとも一方は、一枚の遮光羽根によって構成されることが好ましい。
本発明の第5の態様によると、撮像装置は、第1乃至4の何れか一態様のシャッタ装置と、複数の画素が行列状に配列された撮像素子と、撮像素子による画素行ごとのリセットおよび撮像信号の読み出しを制御する制御部とを備え、制御部は、第1遮光部材の走行方向に沿った走行に応じて撮像素子に対する画素行ごとのリセット、または、第2遮光部材の走行方向に沿った走行に応じて撮像素子に対する画素行ごとの撮像信号の読み出しを行わせる。
本発明の第6の態様によると、第5の態様の撮像装置において、制御部は、撮像素子上において、第1遮光部材によって光束が遮光されている領域に含まれる画素行に対してリセットを行わせることが好ましい。
本発明の第7の態様によると、第6の態様の撮像装置において、シャッタ装置は第1遮光部材を走行方向に沿って第1速度で走行させる第1駆動機構をさらに備え、第1遮光部材の走行方向における遮光範囲の長さは、第1速度と画素行ごとのリセットに要する時間とに基づいて決定される長さよりも長いことが好ましい。
本発明の第8の態様によると、第7の態様の撮像装置において、シャッタ装置は、走行方向に沿って第1遮光部材が走行している走行位置を検出する第1検出部をさらに備え、制御部は、第1検出部により検出された走行位置に基づいて、画素行に対するリセットを開始するタイミングを制御することが好ましい。
本発明の第9の態様によると、第5乃至8の何れか一態様の撮像装置において、制御部は、撮像素子上において、第2遮光部材によって光束が遮光されている領域に含まれる画素行に対して撮像信号の読み出しを行わせることが好ましい。
本発明の第10の態様によると、第9の態様の撮像装置において、シャッタ装置は第2遮光部材を走行方向に沿って第2速度で走行させる第2駆動機構をさらに備え、第2遮光部材の走行方向における遮光範囲の長さは、第2速度と、画素行ごとの撮像信号の読み出しに要する時間と、走行方向における撮像面の長さとに基づいて決定される長さよりも長いことが好ましい。
本発明の第11の態様によると、第10の態様の撮像装置において、シャッタ装置は、走行方向に沿って第2遮光部材が走行している走行位置を検出する第2検出部をさらに備え、制御部は、第2検出部により検出された走行位置に基づいて、画素行に対する撮像信号の読み出しを開始するタイミングを制御することが好ましい。
本発明の第12の態様によると、シャッタ装置は、被写体からの光束を撮像素子へ導く開口部が設けられた基板部材と、撮像素子よりも光束の入射光側を走行して開口部を通過することにより光束を遮光する第1遮光部材と、撮像素子よりも光束の入射光側を、第1遮光部材よりも後に走行して開口部を通過することにより光束を遮光する第2遮光部材と、を備え、第1遮光部材は、走行を開始する位置において、開口部を部分的に遮光する。
本発明の第13の態様によると、第12の態様のシャッタ装置において、撮像素子で撮影を行う際に、第1遮光部材は、開口部を部分的に遮光しながら走行を行うことが好ましい。
本発明の第14の態様によると、第13の態様のシャッタ装置において、第1遮光部材に走行のための付勢力を与える付勢部材をさらに有し、第1遮光部材は、付勢部材をチャージするチャージ位置において、開口部を部分的に遮光することが好ましい。
本発明の第15の態様によると、第13または14の態様のシャッタ装置において、第2遮光部材は、走行を終了した位置において、開口部を部分的に遮光することが好ましい。
本発明の第16の態様によると、撮像装置は、第13または14の態様のシャッタ装置と、複数の画素が行列状に配列された撮像素子と、撮像素子による画素行ごとのリセットおよび撮像信号の読み出しを制御する制御部とを備え、制御部は、第1遮光部材の走行方向に沿った走行に応じて撮像素子に対する画素行ごとのリセット、または、第2遮光部材の走行方向に沿った走行に応じて撮像素子に対する画素行ごとの撮像信号の読み出しを行わせる。
本発明の第17の態様によると、シャッタ装置は、被写体からの光束を撮像素子へ導く開口部が設けられた基板部材と、撮像素子よりも光束の入射光側を走行して開口部を通過することにより光束を遮光する第1遮光部材と、撮像素子よりも光束の入射光側を、第1遮光部材よりも後に走行して開口部を通過することにより光束を遮光する第2遮光部材と、を備え、第2遮光部材は、走行を終了した位置において、開口部を部分的に遮光する。
本発明の第18の態様によると、第17の態様のシャッタ装置において、撮像素子で撮影を行う際に、第2遮光部材は、開口部を部分的に遮光しながら走行を行うことが好ましい。
本発明の第19の態様によると、撮像装置は、第17または第18の態様のシャッタ装置と、複数の画素が行列状に配列された撮像素子と、撮像素子による画素行ごとにリセットおよび撮像信号の読み出しを制御する制御部と、を備え、制御部は、第1遮光部材の走行方向に沿った走行に応じて撮像素子に対する画素行ごとのリセット、または、第2遮光部材の走行方向に沿った走行に応じて撮像素子に対する画素行ごとの撮像信号の読み出しを行わせる。
図面を参照して本発明による第1の実施の形態に係るシャッタ装置を備える撮像装置について説明する。
図1は第1の実施の形態による撮像装置であるデジタルカメラ1の要部構成を説明する図である。デジタルカメラ1は、カメラボディ20と、レンズマウント9を介してカメラボディ20に着脱可能なレンズ鏡筒10とにより構成される、いわゆるミラーレスカメラである。
図2はシャッタ装置21を模式的に示す平面図である。なお、説明の都合上、図示の通りにX軸およびY軸からなる座標系を設定する。シャッタ装置21は、基板210と、先幕211と、後幕212と、先幕駆動部材213と、後幕駆動部材214とを有する。基板210はカメラボディ20の内部に固定され、撮像素子22を被写体光束によって露光するための開口215を有している。開口215は、X軸に沿って延在する2つの辺と、Y軸に沿って延在する2つの辺とによって囲まれる矩形形状に形成される。以下、開口215のY軸-側の辺を上端215U、Y軸+側の辺を下端215B、上端215Uと下端215BとのY軸方向の長さをL0として説明する。
なお、本実施の形態では先幕211、後幕212を共に1枚の羽根により構成されるものとしたが、複数枚の羽根により構成することもできる。この場合も、先幕211、後幕212は、開口215の全体を覆わないように構成すれば良い。
先幕211のY軸方向の長さL1は、少なくとも画素リセット中の画素行に被写体光束が照射されないようにするが、先幕211の走行速度v1と、撮像素子22が画素行全体について画素リセットに要する時間(以後、リセット時間、通常任意に設定できる)t_resetによる画素リセット速度とを一致させることによって、設計上の最少長さは画素ピッチpとすることができる。しかし、実際の先幕211の駆動においては、先幕211の走行速度v1と画素リセット速度とを完全に一致させることは困難であり、また、その他の誤差要因も含むため、先幕211のY軸方向の長さL1は以下の式(1)を満たすように決定される。
L0>L1≧ΔL11 …(1)
なお、ΔL11は定数であり、先幕211の製造誤差や材料強度による走行時の変形に対する余裕や、先幕211のY軸方向の端部から回り込む光の影響を防ぐための余裕、また画素リセット速度と先幕211の走行速度v1との同期誤差に対する余裕として、実験等によって決定される。
図3は、後幕212の上端212Uおよび下端212Bの位置と、開口215の位置と、撮像素子22の各画素行が撮像信号の読み出しに要する時間(読み出し時間)との関係を模式的に示す図である。後幕212の走行速度をv2、開口215のY軸方向の長さ(開口幅)をL0とすると、後幕212の走行時間t2は、以下の式(2)により決定される。
t2=L0/v2 …(2)
v_read=p/t_read …(3)
なお、通常はv2>v_readである。
L0_end=v_read・(t2+t_end)
=v_read・(L0/v2+ΔL2/v2)
=(L0+ΔL2)・v_read/v2…(4)
ここで、t_endは、後幕212の下端212Bが開口215の下端215Bを通過後、停止するまでの時間であり、
t_end=ΔL2・v2 …(5)
の関係を有する。
L2_min=L0-L0_end
=L0・(1-v_read/v2)-ΔL2・v_read/v2 …(6)
L0>L2≧L2_min+ΔL2+ΔL21
=L0・(1-v_read/v2)+ΔL2・(1-v_read/v2)
=(L0+ΔL2)・(1-v_read/v2)+ΔL21 …(7)
ステップS1では、ユーザによりレリーズボタンが全押し操作され、撮影指示が行われたか否かを判定する。レリーズボタンの全押し操作に応じて操作部40から操作信号が出力された場合には、ステップS1が肯定判定されてステップS2へ進む。レリーズボタンが操作されず操作部40から操作信号が出力されていない場合には、ステップS1が否定判定されて、処理を繰り返す。
(1)デジタルカメラ1が有するシャッタ装置21は、撮像素子22の撮像面の前方に位置し、Y軸方向に沿って走行する先幕211と、撮像素子22の撮像面の前方に位置し、Y軸方向に沿って走行する後幕212とを備える。そして、Y軸方向における先幕211の長さL1およびY軸方向における後幕212の長さL2は、開口215のY軸方向における長さL0よりも小さくした。先幕211および後幕212が開口215の全領域を遮光しないため、先幕211および後幕212の面積を従来の先幕や後幕と比較して小さくすることができるので、製造コストを低減するとともに、軽量化に寄与する。さらに、先幕211および後幕212の軽量化に伴って、先幕211および後幕212を駆動させるための消費電力を低減させることが可能となる。さらに加えて、軽量化により先幕211および後幕212の走行時の衝撃の減少により、耐久性を向上させるとともに、シャッタ装置21の動作の静寂性を向上させることができる。また、先幕211および後幕212の軽量化により走行速度(幕速)を向上させることができるので、動体撮影時に撮影画像上の被写体に歪みが発生することを抑制して画質を向上させるとともに、ストロボ同調速度を高速化することが可能となる。
なお、先幕211および後幕212を複数枚の羽根により構成した場合であっても、開口215の全体を覆わず、その一部のみを覆うように構成すれば、開口215の全体を覆う構成とした従来の先幕や後幕と比較して、上述した効果を得ることができる。
本発明の第2の実施の形態によるデジタルカメラについて説明する。以下の説明では、第1の実施の形態と同じ構成要素には同じ符号を付して相違点を主に説明する。特に説明しない点については、第1の実施の形態と同じである。本実施の形態では、先幕の格納位置が第1の実施の形態とは異なる。
レリーズボタンが操作された後、先幕211を開口215の下端215BよりもY軸+側に設けられた格納位置からチャージ位置まで走行させる必要がないので、第1の実施の形態と比べてレリーズタイムラグを短くすることができる。
本発明の第3の実施の形態によるデジタルカメラについて説明する。以下の説明では、第1の実施の形態と同じ構成要素には同じ符号を付して相違点を主に説明する。特に説明しない点については、第1の実施の形態と同じである。本実施の形態では、撮像素子による撮像領域の面積が開口面積と比較して小さい点で第1の実施の形態とは異なる。
L0>L2≧(L3+ΔL2)・(1-v_read/v2)+ΔL21 …(8)
なお、式(8)におけるΔL21は、撮像領域221の下端221Bから後幕212の下端212Bの走行終了位置までの距離である。
デジタルカメラ1が有するシャッタ装置21は、撮像素子22の撮像面の前方に位置し、Y軸方向に沿って走行する先幕211と、撮像素子22の撮像面の前方に位置し、Y軸方向に沿って走行する後幕212とを備える。そして、Y軸方向における先幕211の長さL1およびY軸方向における後幕212の長さL2は、撮像素子22の撮像領域221のY軸方向における長さL3よりも小さくした。ΔL2については、第1の実施の形態のものとほぼ同程度とすることができる。したがって、第1の実施の形態と比べて、先幕211および後幕212のさらなる軽量化を達成できるので、製造コストの低減、消費電力の低減、耐久性の向上、静寂性の向上、幕速の高速化に寄与する。
本発明の第4の実施の形態によるデジタルカメラについて説明する。以下の説明では、第1の実施の形態と同じ構成要素には同じ符号を付して相違点を主に説明する。特に説明しない点については、第1の実施の形態と同じである。本実施の形態では、走行中の先幕および後幕の位置を検出して、検出した位置に基づいて画素リセットおよび撮像信号の読み出しを開始するタイミングを制御する点で第1の実施の形態とは異なる。
ステップS10(レリーズボタンの操作有無判定)からステップS12(先幕211の走行開始)までの各処理は、図5のステップS1(レリーズボタンの操作有無判定)からステップS3(先幕211の走行開始)までの各処理と同様の処理を行う。ステップS13においては、先幕211のY軸方向における位置が所定位置であるか否かを判定する。先幕211が所定位置に走行している場合には、ステップS13が肯定判定されてステップS14へ進む。先幕211が所定位置まで走行していない場合には、ステップS13が否定判定されて処理を繰り返す。
先幕位置検出器313はY軸方向に沿って先幕211が走行している位置を検出し、制御装置26は、検出された先幕211の位置が所定位置の場合に、撮像素子22に対して、画素行ごとの画素リセットを開始させる。さらに、後幕位置検出器314は、Y軸方向に沿って後幕212が走行している位置を検出し、制御装置26は、検出された後幕212の位置が所定位置の場合に、撮像素子22に対して、画素行ごとの撮像信号の読み出しを開始させる。したがって、たとえば経年劣化等によって先幕211の走行速度v1や後幕212の走行速度v2に変化が生じた場合であっても、画素リセット中の画素行や蓄積画素を読み出し中の画素行を被写体光束から遮光することができる。すなわち、各羽根の余裕分ΔL11、ΔL21を小さく設計することができる。
(1)先幕211が式(1)の条件を満たす長さL1に形成され、後幕212は開口215の全領域を遮光可能な長さに形成されたものや、先幕211が開口215の全領域を遮光可能な長さに形成され、後幕212が式(7)または(8)の条件を満たす長さに形成されたシャッタ装置21も本発明の一態様に含まれる。このようなシャッタ装置21を備えるデジタルカメラ1についても本発明の一態様に含まれる。
日本国特許出願2014年第63363号(2014年3月26日出願)
26…制御装置、210…基板、211…先幕、
212…後幕、213…先幕駆動部材、214…後幕駆動部材、
215…開口、221…撮像領域、313…先幕位置検出器、314…後幕位置検出器
Claims (19)
- 撮像素子の撮像面の前方に位置し、所定の走行方向に沿って走行して被写体からの光束を遮光する第1遮光部材と、
前記撮像素子の前記撮像面の前方に位置し、前記走行方向に沿って走行して前記光束を遮光する第2遮光部材とを備え、
前記走行方向における前記第1遮光部材の遮光範囲の長さおよび前記走行方向における前記第2遮光部材の遮光範囲の長さの少なくとも一方は、前記走行方向における前記撮像面の長さよりも短いシャッタ装置。 - 被写体からの光束を撮像素子へ導く開口部が設けられた基板部材と、
前記撮像素子の撮像面に平行な平面上を走行方向に沿って走行して前記開口部を通過することにより前記光束を遮光する第1遮光部材と、
前記撮像素子の撮像面に平行な平面上を前記走行方向に沿って走行して前記開口部を通過することにより前記光束を遮光する第2遮光部材と、を備え、
前記第1遮光部材の前記走行方向における遮光範囲の長さおよび前記第2遮光部材の前記走行方向における遮光範囲の長さの少なくとも一方は、前記走行方向における前記開口部の長さよりも短いシャッタ装置。 - 請求項2に記載のシャッタ装置において、
前記撮像素子の撮像面の前記走行方向における長さは、前記開口部の前記走行方向における長さよりも小さく、
前記第1遮光部材の前記走行方向における遮光範囲の長さおよび前記第2遮光部材の前記走行方向における遮光範囲の長さの少なくとも一方は、前記走行方向における前記撮像面の長さよりも短いシャッタ装置。 - 請求項1乃至3の何れか一項に記載のシャッタ装置において、
前記第1遮光部材および前記第2遮光部材の少なくとも一方は、一枚の遮光羽根によって構成されるシャッタ装置。 - 請求項1乃至4の何れか一項に記載のシャッタ装置と、
複数の画素が行列状に配列された前記撮像素子と、
前記撮像素子による画素行ごとのリセットおよび撮像信号の読み出しを制御する制御部とを備え、
前記制御部は、前記第1遮光部材の前記走行方向に沿った走行に応じて前記撮像素子に対する前記画素行ごとの前記リセット、または、前記第2遮光部材の前記走行方向に沿った走行に応じて前記撮像素子に対する前記画素行ごとの前記撮像信号の読み出しを行わせる撮像装置。 - 請求項5に記載の撮像装置において、
前記制御部は、前記撮像素子上において、前記第1遮光部材によって前記光束が遮光されている領域に含まれる前記画素行に対して前記リセットを行わせる撮像装置。 - 請求項6に記載の撮像装置において、
前記シャッタ装置は前記第1遮光部材を前記走行方向に沿って第1速度で走行させる第1駆動機構をさらに備え、
前記第1遮光部材の前記走行方向における遮光範囲の長さは、前記第1速度と前記画素行ごとの前記リセットに要する時間とに基づいて決定される長さよりも長い撮像装置。 - 請求項7に記載の撮像装置において、
前記シャッタ装置は、前記走行方向に沿って前記第1遮光部材が走行している走行位置を検出する第1検出部をさらに備え、
前記制御部は、前記第1検出部により検出された前記走行位置に基づいて、前記画素行に対する前記リセットを開始するタイミングを制御する撮像装置。 - 請求項5乃至8の何れか一項に記載の撮像装置において、
前記制御部は、前記撮像素子上において、前記第2遮光部材によって前記光束が遮光されている領域に含まれる前記画素行に対して前記撮像信号の読み出しを行わせる撮像装置。 - 請求項9に記載の撮像装置において、
前記シャッタ装置は前記第2遮光部材を前記走行方向に沿って第2速度で走行させる第2駆動機構をさらに備え、
前記第2遮光部材の前記走行方向における遮光範囲の長さは、前記第2速度と、前記画素行ごとの前記撮像信号の読み出しに要する時間と、前記走行方向における前記撮像面の長さとに基づいて決定される長さよりも長い撮像装置。 - 請求項10に記載の撮像装置において、
前記シャッタ装置は、前記走行方向に沿って前記第2遮光部材が走行している走行位置を検出する第2検出部をさらに備え、
前記制御部は、前記第2検出部により検出された前記走行位置に基づいて、前記画素行に対する前記撮像信号の読み出しを開始するタイミングを制御する撮像装置。 - 被写体からの光束を撮像素子へ導く開口部が設けられた基板部材と、
前記撮像素子よりも前記光束の入射光側を走行して前記開口部を通過することにより前記光束を遮光する第1遮光部材と、
前記撮像素子よりも前記光束の入射光側を、前記第1遮光部材よりも後に走行して前記開口部を通過することにより前記光束を遮光する第2遮光部材と、を備え、
前記第1遮光部材は、前記走行を開始する位置において、前記開口部を部分的に遮光するシャッタ装置。 - 請求項12に記載のシャッタ装置において、
前記撮像素子で撮影を行う際に、前記第1遮光部材は、前記開口部を部分的に遮光しながら前記走行を行うシャッタ装置。 - 請求項13に記載のシャッタ装置において、
前記第1遮光部材に前記走行のための付勢力を与える付勢部材をさらに有し、
前記第1遮光部材は、前記付勢部材をチャージするチャージ位置において、前記開口部を部分的に遮光するシャッタ装置。 - 請求項13または14に記載のシャッタ装置において、
前記第2遮光部材は、前記走行を終了した位置において、前記開口部を部分的に遮光するシャッタ装置。 - 請求項13または14に記載のシャッタ装置と、
複数の画素が行列状に配列された前記撮像素子と、
前記撮像素子による画素行ごとのリセットおよび撮像信号の読み出しを制御する制御部とを備え、
前記制御部は、前記第1遮光部材の前記走行方向に沿った走行に応じて前記撮像素子に対する前記画素行ごとの前記リセット、または、前記第2遮光部材の前記走行方向に沿った走行に応じて前記撮像素子に対する前記画素行ごとの前記撮像信号の読み出しを行わせる撮像装置。 - 被写体からの光束を撮像素子へ導く開口部が設けられた基板部材と、
前記撮像素子よりも前記光束の入射光側を走行して前記開口部を通過することにより前記光束を遮光する第1遮光部材と、
前記撮像素子よりも前記光束の入射光側を、前記第1遮光部材よりも後に走行して前記開口部を通過することにより前記光束を遮光する第2遮光部材と、を備え、
前記第2遮光部材は、前記走行を終了した位置において、前記開口部を部分的に遮光するシャッタ装置。 - 請求項17に記載のシャッタ装置において、
前記撮像素子で撮影を行う際に、前記第2遮光部材は、前記開口部を部分的に遮光しながら前記走行を行うシャッタ装置。 - 請求項17または18に記載のシャッタ装置と、
複数の画素が行列状に配列された前記撮像素子と、
前記撮像素子による画素行ごとにリセットおよび撮像信号の読み出しを制御する制御部と、を備え、
前記制御部は、前記第1遮光部材の前記走行方向に沿った走行に応じて前記撮像素子に対する前記画素行ごとの前記リセット、または、前記第2遮光部材の前記走行方向に沿った走行に応じて前記撮像素子に対する前記画素行ごとの前記撮像信号の読み出しを行わせる撮像装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016510378A JPWO2015146971A1 (ja) | 2014-03-26 | 2015-03-24 | シャッタ装置および撮像装置 |
US15/127,990 US10567680B2 (en) | 2014-03-26 | 2015-03-24 | Shutter device and image-capturing device |
CN201580027119.0A CN106415385B (zh) | 2014-03-26 | 2015-03-24 | 快门装置和拍摄装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014063363 | 2014-03-26 | ||
JP2014-063363 | 2014-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015146971A1 true WO2015146971A1 (ja) | 2015-10-01 |
Family
ID=54195483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/058896 WO2015146971A1 (ja) | 2014-03-26 | 2015-03-24 | シャッタ装置および撮像装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10567680B2 (ja) |
JP (2) | JPWO2015146971A1 (ja) |
CN (1) | CN106415385B (ja) |
WO (1) | WO2015146971A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021010021A1 (ja) * | 2019-07-17 | 2021-01-21 | ソニー株式会社 | 撮像装置、シャッタユニット、シャッタ制御方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05196995A (ja) * | 1992-01-20 | 1993-08-06 | Chinon Ind Inc | カメラ |
JP2003131114A (ja) * | 2001-10-23 | 2003-05-08 | Canon Inc | 撮影装置 |
JP2007267326A (ja) * | 2006-03-30 | 2007-10-11 | Sony Corp | 撮像ユニットおよび撮像装置 |
JP2007282128A (ja) * | 2006-04-11 | 2007-10-25 | Canon Inc | 撮像装置及びその制御方法 |
JP2012113115A (ja) * | 2010-11-24 | 2012-06-14 | Canon Inc | 撮像装置 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3990786B2 (ja) | 1997-12-16 | 2007-10-17 | 日本電産コパル株式会社 | カメラ用フォーカルプレンシャッタ |
JP3997195B2 (ja) * | 2003-11-20 | 2007-10-24 | キヤノン株式会社 | 画像入力装置及びその制御方法 |
JP4575093B2 (ja) * | 2004-09-16 | 2010-11-04 | 日本電産コパル株式会社 | デジタルスチルカメラ用フォーカルプレンシャッタ |
KR100736109B1 (ko) * | 2005-07-15 | 2007-07-06 | 주식회사 엠투시스 | 소형 카메라장치용 개폐장치 |
US20080205879A1 (en) * | 2005-07-15 | 2008-08-28 | M2Sys Co., Ltd. | Opening and Closing Apparatus For Small Image Photographing Devices |
JP2009088825A (ja) * | 2007-09-28 | 2009-04-23 | Panasonic Corp | カメラシステムおよびカメラ本体 |
JP5031669B2 (ja) * | 2008-05-30 | 2012-09-19 | キヤノン株式会社 | 撮像装置 |
JP2010107635A (ja) * | 2008-10-29 | 2010-05-13 | Panasonic Corp | 電子カメラのシャッター制御方法 |
JP5409317B2 (ja) * | 2009-12-14 | 2014-02-05 | オリンパスイメージング株式会社 | 撮像装置 |
KR101798181B1 (ko) * | 2010-08-05 | 2017-11-17 | 삼성전자주식회사 | 셔터 장치 및 그를 구비한 이미지 캡쳐 장치 |
JP5191518B2 (ja) * | 2010-09-14 | 2013-05-08 | セイコープレシジョン株式会社 | フォーカルプレーンシャッタ及び光学機器 |
KR101797037B1 (ko) * | 2011-03-07 | 2017-11-13 | 삼성전자주식회사 | 디지털 촬영 장치 및 이의 제어 방법 |
CN102685392A (zh) * | 2011-03-07 | 2012-09-19 | 精工爱普生株式会社 | 数码相机及其快门动作推断方法 |
JP5719678B2 (ja) * | 2011-04-28 | 2015-05-20 | 日本電産コパル株式会社 | カメラ用フォーカルプレンシャッタ |
JP5798910B2 (ja) * | 2011-12-20 | 2015-10-21 | セイコープレシジョン株式会社 | フォーカルプレーンシャッタ及びそれを備えた光学機器 |
KR20130094121A (ko) * | 2012-02-15 | 2013-08-23 | 삼성전자주식회사 | 하이브리드 포컬 플레인 셔터 조립체를 구비한 촬상장치 및 촬상방법 |
KR102034621B1 (ko) * | 2012-07-13 | 2019-10-21 | 삼성전자 주식회사 | 셔터 구동 시스템과 이를 포함하는 카메라 장치 및 카메라 구동 방법 |
JP6162415B2 (ja) * | 2013-01-31 | 2017-07-12 | セイコープレシジョン株式会社 | 撮像装置及びフォーカルプレーンシャッタ |
JP6196047B2 (ja) * | 2013-03-01 | 2017-09-13 | セイコープレシジョン株式会社 | 撮像装置及びフォーカルプレーンシャッタ |
KR20150058705A (ko) * | 2013-11-20 | 2015-05-29 | 삼성전자주식회사 | 촬영 장치 및 이의 제어 방법 |
JP2016090739A (ja) * | 2014-10-31 | 2016-05-23 | 株式会社ニコン | シャッタ装置および撮像装置 |
JP2016090740A (ja) * | 2014-10-31 | 2016-05-23 | 株式会社ニコン | シャッタ装置および撮像装置 |
JP6627151B2 (ja) * | 2017-03-06 | 2020-01-08 | セイコーホールディングス株式会社 | 撮像装置および羽根駆動装置 |
-
2015
- 2015-03-24 WO PCT/JP2015/058896 patent/WO2015146971A1/ja active Application Filing
- 2015-03-24 US US15/127,990 patent/US10567680B2/en active Active
- 2015-03-24 JP JP2016510378A patent/JPWO2015146971A1/ja active Pending
- 2015-03-24 CN CN201580027119.0A patent/CN106415385B/zh active Active
-
2021
- 2021-01-04 JP JP2021000248A patent/JP7014311B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05196995A (ja) * | 1992-01-20 | 1993-08-06 | Chinon Ind Inc | カメラ |
JP2003131114A (ja) * | 2001-10-23 | 2003-05-08 | Canon Inc | 撮影装置 |
JP2007267326A (ja) * | 2006-03-30 | 2007-10-11 | Sony Corp | 撮像ユニットおよび撮像装置 |
JP2007282128A (ja) * | 2006-04-11 | 2007-10-25 | Canon Inc | 撮像装置及びその制御方法 |
JP2012113115A (ja) * | 2010-11-24 | 2012-06-14 | Canon Inc | 撮像装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021010021A1 (ja) * | 2019-07-17 | 2021-01-21 | ソニー株式会社 | 撮像装置、シャッタユニット、シャッタ制御方法 |
JP7501534B2 (ja) | 2019-07-17 | 2024-06-18 | ソニーグループ株式会社 | 撮像装置、シャッタユニット、シャッタ制御方法 |
Also Published As
Publication number | Publication date |
---|---|
US10567680B2 (en) | 2020-02-18 |
JPWO2015146971A1 (ja) | 2017-04-13 |
CN106415385A (zh) | 2017-02-15 |
JP2021060619A (ja) | 2021-04-15 |
US20170155854A1 (en) | 2017-06-01 |
CN106415385B (zh) | 2019-06-21 |
JP7014311B2 (ja) | 2022-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20080151065A1 (en) | Camera capable of displaying moving image and control method of the same | |
US8786743B2 (en) | Imaging apparatus and shutter operation correcting method | |
JP2011151740A (ja) | 撮像装置 | |
US20180259829A1 (en) | Shutter device and image-capturing apparatus | |
JP7014311B2 (ja) | シャッタ装置および撮像装置 | |
JP5409317B2 (ja) | 撮像装置 | |
JP5628888B2 (ja) | 撮像装置、撮像装置の制御方法および撮像装置の制御プログラム | |
JP5478677B2 (ja) | 撮像装置および撮像装置の制御方法 | |
JP2008281925A (ja) | デジタルカメラ | |
JP2008028544A (ja) | デジタルカメラ | |
JP5998820B2 (ja) | 撮影装置、合焦状態表示方法、合焦状態表示プログラム | |
WO2016068321A1 (ja) | シャッタ装置および撮像装置 | |
JP6149346B2 (ja) | 撮影装置 | |
JP6149345B2 (ja) | 撮影装置および画質調整方法 | |
JP2019186852A (ja) | 撮像装置およびその制御方法 | |
JP2016090741A (ja) | シャッタ装置および撮像装置 | |
JP2007256565A (ja) | 撮像装置 | |
JP2016090742A (ja) | シャッタ装置および撮像装置 | |
JP6094134B2 (ja) | デジタルカメラ、電子先幕制御方法、および先幕制御情報の編集方法 | |
JP5828401B2 (ja) | 画像生成装置および画像生成方法 | |
JP5963590B2 (ja) | 撮像装置 | |
JP2008028545A (ja) | デジタルカメラ | |
JP2020012983A (ja) | 焦点検出装置、カメラボディおよびカメラシステム | |
JP2008060640A (ja) | 撮像装置 | |
JP2018186369A (ja) | 撮像装置、その制御方法、および制御プログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15769438 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016510378 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15127990 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15769438 Country of ref document: EP Kind code of ref document: A1 |