WO2012035822A1 - ファインダ装置の表示制御方法及びその装置 - Google Patents
ファインダ装置の表示制御方法及びその装置 Download PDFInfo
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- WO2012035822A1 WO2012035822A1 PCT/JP2011/061102 JP2011061102W WO2012035822A1 WO 2012035822 A1 WO2012035822 A1 WO 2012035822A1 JP 2011061102 W JP2011061102 W JP 2011061102W WO 2012035822 A1 WO2012035822 A1 WO 2012035822A1
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- image
- display
- brightness
- display control
- finder
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- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/02—Viewfinders
- G03B13/04—Viewfinders of direct vision type, e.g. frame, sighting mark
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- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
Definitions
- the present invention relates to a display control method and apparatus of a finder apparatus mounted on an imaging apparatus such as a digital camera, and more particularly to a display control method and apparatus with improved visibility of an image to be confirmed in the finder.
- a solid-state image sensor is mounted on the digital camera, a through image (live view image) of an object output from the solid-state image sensor is displayed on a liquid crystal display panel or the like provided on the back of the camera, etc. There are more and more cameras to use.
- the liquid crystal display panel When checking the composition of the subject with the liquid crystal display panel provided on the back of the camera, the liquid crystal display panel itself becomes difficult to see if the ambient light is too bright, so a sensor detects whether the ambient light is bright or not. As described in Document 1, it is preferable to control the backlight of the liquid crystal display panel according to the brightness of ambient light.
- the electronic view finder device mounts a small display panel in a finder, and displays a through image output from a solid-state imaging device on the display panel. Therefore, the subject image can be checked without being affected by ambient light, and the shutter button is pressed while checking the subject image in the finder (that is, with the finder of the camera pressed against the face), There is an advantage that shaking is difficult to occur.
- this conventional electronic view finder device when the user checks the image in the finder, the photographer's viewing window of the finder is blocked by the eye and the amount of ambient light entering the interior is reduced. Therefore, in the conventional electronic view finder device, an image of a predetermined brightness (for example, 2000 lux) is always displayed. However, when the photographer suddenly looks in the finder with the image of this brightness, the image before it looks down. Depending on the brightness of ambient light, the change of the pupil may not be in time and the eye may be dazzled, making it difficult to view the image.
- a predetermined brightness for example, 2000 lux
- the display panel mounted inside is small, only a rough image can be displayed, and there is a problem that it is not possible to confirm a detailed portion of the subject composition. Furthermore, in order to display a through image, time is required for image processing, and there is also a problem that a slight time lag occurs compared to the state of the actual subject.
- the subject image is displayed in a common finder by switching between an optical viewfinder (hereinafter also referred to as OVF) and an electronic viewfinder (hereinafter referred to as EVF). Or, photographing condition information and the like displayed by the electronic view finder are superimposed and displayed on the light image of the subject passed through the optical view finder.
- OVF optical viewfinder
- EVF electronic viewfinder
- the light image of the subject through the optical viewfinder changes according to the brightness of the ambient light, and this is switched to the image in the electronic viewfinder, or conversely, the image in the electronic viewfinder
- the change in the pupil of the photographer's eye may not be in time, and the eye may be dazzled, making it difficult to view the image.
- An object of the present invention is to provide a display control method of the finder device and the device that make it easy to view an image by suppressing the glare of the eyes in consideration of the change of the pupil of the eye looking through the finder.
- the display control device of the finder device includes a half mirror provided in the finder device for transmitting an incident light image from the object side and projecting the light image onto the photographer side finder viewing window, and the half mirror in the finder device. It is a display panel provided at a facing position, and displays a captured image of the subject captured by an imaging device at a predetermined brightness, reflects the displayed captured image by the half mirror, and faces the photographer side finder viewing window And a display control unit for changing the brightness of the display image to be displayed on the display panel to be gradually brightened to make the predetermined brightness or to gradually brighten from the predetermined brightness. It is characterized by
- the half mirror provided in the finder device transmits the incident light image from the subject side and projects it to the photographer side finder viewing window, and the half mirror in the finder device. It is a display panel provided at a facing position, and displays a captured image of the subject captured by an imaging device at a predetermined brightness, reflects the displayed captured image by the half mirror, and faces the photographer side finder viewing window
- a display control method for a finder device comprising: a display panel to be projected, wherein the brightness of the display image to be displayed on the display panel is gradually changed so as to be gradually brightened to the predetermined brightness or from the predetermined brightness Furthermore, it is characterized by making it bright gradually.
- the photographer since a bright image is not displayed suddenly on the display panel, the photographer does not look dazzled by seeing the image on the display panel.
- FIG. 1 is an external perspective view of a digital camera according to an embodiment of the present invention. It is an internal block diagram of the digital camera shown in FIG. It is a figure which shows an example (a) of the optical image which passed through the optical view finder, and an example (b) of the information by EVF superimposed and displayed on this optical image. It is a figure which shows the example which overlapped and displayed FIG. 3 (a) and FIG.3 (b). It is defect explanatory drawing when switching an OVF light image to an EVF image suddenly. It is a flowchart which shows the display control processing procedure of 1st Embodiment of this invention. It is explanatory drawing of the brightness control of EVF image by the process sequence of FIG.
- FIG. 1 is an external perspective view of a compact type digital camera according to an embodiment of the present invention.
- the digital still camera 10, which is an image pickup apparatus according to the present embodiment, includes a rectangular case 11, and a collapsible lens barrel 12 is provided in the center of the front.
- a zoom lens etc. 13 is housed.
- a shutter release button 14 is provided on one side of the upper end surface of the housing 11, and a hybrid finder device 15, which will be described in detail later, is provided in the housing 11 at the corner opposite to the shutter release button 14. There is.
- An object side finder window 16 of the finder device 15 is provided at a corner of the front of the housing 11, and a photographer side finder observation window 17 of the finder device 15 is provided on the rear side.
- FIG. 2 is an internal block diagram of the digital camera 10 shown in FIG.
- the digital camera 10 includes a solid-state imaging device 21 for capturing a single-plate color image, a photographing lens 13 (a zoom lens 13a and a focusing lens 13b) placed in front of the solid-state imaging device 21, and a stop ( Iris 24; CDSAMP (Correlated Double Sampling (CDS), Gain Control Amplifier (AMP)) 25 for analog signal processing of output signal (captured image signal) of solid-state image sensor 21; and output signal of CDSAMP 25 as digital signal And an analog-to-digital (A / D) converter 26 for converting.
- the solid-state imaging device 21 is a CCD type in this example, it may of course be a solid-state imaging device of another type such as a CMOS type.
- the digital camera 10 further includes an image input controller 31 for capturing a captured image signal consisting of a digital signal output from the A / D converter 26, and an arithmetic processing unit (CPU) 32 for overall control of the entire digital camera 10.
- An image signal processing circuit 33 that processes a captured image signal
- an AF detection circuit 34 that detects a focal position from image data output from the solid-state imaging device 21, and an AE & AWB detection circuit 35 that automatically detects an exposure amount and white balance.
- the SDRAM 36 as a storage unit used as a work memory, a face detection circuit 37 for detecting a “face” image in a subject, a moving body detection circuit 38 for detecting a moving body in a subject, and captured image data after image processing Processing circuit 39 for compressing the image data into a JPEG image or an MPEG image, and a liquid crystal display device provided on the back of the camera etc. 40 and a liquid crystal display (EVF panel) 61 in the finder device 15, a video encoder 41 for displaying captured images and through images, and various information described later, a media controller 43 for storing captured image data in a recording medium 42, and And a bus 44 interconnecting the two.
- a face detection circuit 37 for detecting a “face” image in a subject
- a moving body detection circuit 38 for detecting a moving body in a subject
- Processing circuit 39 for compressing the image data into a JPEG image or an MPEG image
- a liquid crystal display device provided on the back
- the digital camera 10 further includes a motor driver 46 that supplies drive pulses to the drive motor of the zoom lens 13a, a motor driver 47 that supplies drive pulses to the motor that drives the position of the focus lens 13b, and an aperture position of the diaphragm 24.
- the CDS AMP 25 also operates based on an instruction from the CPU 32.
- the CPU 32 further includes a switch 51 for switching the photographing mode / reproduction mode, and a shutter release button 52 (same as the symbol 14 in FIG. 1) of the two-step shutter.
- the CPU 32 controls the digital camera 10 based on Furthermore, the digital camera 10 of the present embodiment includes a liquid crystal driver 53 that operates according to an instruction of the CPU 32.
- the liquid crystal driver 53 opens and closes a liquid crystal shutter (OVF shutter) 62 in the finder device 15 described later.
- the finder device 15 includes an objective lens 65, an OVF shutter 62, a prism 66 having a half mirror 63 therein, and an eyepiece lens 64 in this order between the subject side finder window 16 and the photographer side viewing window 17. It is stored.
- the objective lens 65 may be a single-focus lens, but it may be used as a zoom lens in conjunction with the zoom of the photographing lens 13.
- the half mirror 63 is disposed at an oblique angle of 45 degrees with respect to the incident light axis L from the subject, and the above-mentioned liquid crystal display 61 for EVF is installed adjacent to the half mirror 63 and parallel to the incident light axis L It is done. As a result, the incident light from the subject transmitted through the half mirror 63 and the light emitted from the liquid crystal display device 61 and reflected by the half mirror 63 are projected in the eye of the photographer in an overlapping state.
- the half mirror 63 is preferably made of, for example, a silver film that transmits 50% of light and reflects 50% of light, but is not limited to this ratio.
- a film that transmits 70% (or 60%) of light and reflects 30% (or 40%) of light may be used, as long as both transmitted light and reflected light are present.
- the liquid crystal display device 61 is provided with a changeover switch (not shown) so as to exclusively display the same information as the liquid crystal display device 40 provided on the back of the camera, and can be switched by the photographer.
- the display information to the liquid crystal display device 61 is through image information output from the solid-state imaging device 21 and photographed image information after photographing, but information such as photographing conditions is also displayed.
- the finder unit 15 is used as an optical view finder (OVF) by setting the OVF shutter 62 in the “open” state and making the EVF color display device 61 non-display, the light 81 from the subject 70 is the eye of the photographer Projected
- the finder unit 15 is used as an electronic view finder (EVF) by setting the OVF shutter 62 in the "closed” state and displaying the EVF color display unit 61, and the light 82 from the display unit 61 is projected to the photographer's eye Be done.
- OVF optical view finder
- EVF electronic view finder
- FIG. 3A shows an example of an optical image projected onto the subject side finder window 16 of the finder device 15, transmitted through the half mirror 63, transmitted through the photographer side viewing window 17, and projected onto the eye of the photographer.
- the optical image 70 a of the subject 70 shown in FIG. 2 is shown at the center of the finder frame 71.
- FIG. 3B is a view showing an example of information such as a photographing condition displayed on the color display device 61 for EVF.
- “P” in this example, program shooting mode
- an AF frame 78 indicating a focusing position and a framing guide line 79 are displayed at the center portion.
- FIG. 4 shows a state in which the respective information in FIG. 3A and FIG. 3B are overlapped with the OVF shutter 62 open. By doing this, it is possible to superimpose and display the display information by the EVF on the subject image by the optical viewfinder.
- each information 75 to 79 shown in FIG. 3B is not displayed in "black".
- the light can not express the "black” color, and in fact, "black” is expressed by blocking the light.
- black is expressed by blocking the pixel position to be made black and preventing the light of the backlight from leaking to the front.
- black is expressed by stopping light emission at a pixel position expressing “black”.
- the brightness of the subject passing through the optical viewfinder is detected from the captured image signal output from the solid-state imaging device 21, and the image of the display device 61 is displayed with the same brightness as this brightness.
- the combined image becomes an easy-to-see image.
- the brightness of the subject due to ambient light may be detected by a separate illuminance sensor without being detected by the output signal of the solid-state imaging device 21.
- the composite image becomes an easily viewable image.
- the photographer switches the operation switch in order to use the finder device 15 as an electronic view finder, and causes the finder device 15 to display a through image output from the solid-state imaging device 21.
- the finder device 15 When the finder device 15 is operated as an electronic view finder, conventionally, in order to provide the photographer with an EVF image that is always easy to see under any circumstances, an image of a predetermined brightness, for example, an image of 2000 lux is a finder as a default. It is supposed to be displayed inside.
- the OVF shutter 62 When displaying an EVF image, for example, as shown in FIG. 5, the OVF shutter 62 is set to “close” to shut off the OVF light image, and the EVF image is displayed.
- the OVF shutter 62 When the OVF shutter 62 is "open", the eye of the photographer is accustomed to 10 lux and has a pupil size (expanded) suitable for 10 lux. From this state, when the OVF shutter 62 is “closed” and an EVF image of 2000 lux is displayed, the photographer sees a white EVF image for a moment, and as the pupil narrows, the normal It will be visible as a bright EVF image.
- the eyes are dazzled even for a moment, it is difficult to instantly recognize the EVF image.
- step S1 when the switching from the OVF to the EVF in the finder device 15 occurs, first, whether the illuminance measurement value of the surrounding environment is a predetermined illuminance, for example, 1000 lux (Lx) or more It is determined whether or not it is (step S1). If the environment is brighter than the predetermined illuminance, the pupil of the eye is narrowed, so the process proceeds to step S3 to set the display brightness of the EVF image to the default of 2000 lux, and the process is ended.
- a predetermined illuminance for example, 1000 lux (Lx) or more
- step S1 when the illuminance measurement value of the surrounding environment is in a dark state less than 1000 lux, the process proceeds from step S1 to step S2 to gradually increase the EVF image in steps of predetermined brightness, for example 500 lux. After the display brightness is increased, the process proceeds to step S3, and the brightness is finally set to 2000 lux.
- predetermined brightness for example 500 lux.
- the brightness adjustment of the EVF image can be controlled using the brightness adjustment function of the backlight (in the case of the liquid crystal display device).
- brightness control may be performed using an image brightness adjustment function ( ⁇ curve).
- FIG. 7 is a graph showing the change in brightness of the EVF image displayed according to the processing procedure of FIG. In the illustrated example, since the measured value of the environmental illumination is 10 lux, it is gradually brightened up to 2000 lux in steps of 500 lux.
- the environmental illuminance is measured, and the value of the environmental illuminance is used as the start brightness of the brightness control of the EVF image. If the difference between the timing t1 of the OVF shutter “close” shown in FIG. 7 and the display timing t2 of the EVF image is small, the eye is used to the brightness of the environmental illumination. However, when this difference widens, the eyes become accustomed to the brightness in the finder device 15 that has become dark with the OVF shutter “closed”, and the pupil is expanded.
- the determination processing step S1 based on the measured value of the environmental illumination becomes unnecessary, and it always starts from step S2, and the control start value of the brightness change of the EVF image starts from 0 lux.
- the brightness of the EVF image shown in FIG. 7 is controlled by the type of the EVF image to be displayed (night scene, person night scene, candle image, etc.), by how much time and inclination to raise the brightness of the EVF image. Is preferred.
- 8 (a) to 8 (d) show a pattern (a) for stepping up by 500 lux in a long time to 2000 lux and a pattern (step (b)) for stepping up in 1000 lux at a long time
- a pattern (c) for stepping up by 500 luxes in a short time of 1/2 to the above long time to 2000 lux (c) and a pattern for stepping up by 1000 lux in a short time similarly to (d) Shows four types of patterns.
- FIG. 8 is merely an example, and the detailed description is omitted because the description is simplified.
- the environmental illumination is 700 lux
- the four types of patterns shown in FIG. 8 are stored as table data in a ROM (not shown) in the CPU 32 of FIG. 2 and output information of the solid-state imaging device 21 obtained from the image signal processing circuit 33 etc. Analyzes and determines the type of subject such as whether it is a night scene, whether it is a person image or not, and whether it is a candle image, selects an appropriate pattern corresponding to the type of the subject, and displays the EVF display device Control 61
- the pattern of FIG. 8D is selected because the eye immediately adapts even if the EVF image is lightened in a short time.
- the pattern of FIG. 8C is selected.
- the pattern of FIG. 8A is selected because it is dark.
- the candle image is close, the bright spot range at the center is wide and the pupil looking at this is narrow, so there is no problem even in the patterns of FIGS. 8 (c) and (d).
- the pattern shown in FIGS. 8 (b) and (d) is selected.
- FIG. 9 is a flowchart for explaining the second embodiment of the present invention.
- the EVF image is displayed by the electronic viewfinder, this is switched to the optical viewfinder.
- the light image of the subject through the optical viewfinder is superimposed and displayed on the EVF image.
- the OVF light image is, for example, 6000 lux. If the luminance is high, a large amount of OVF light enters the eye at the switching moment or the superposing moment, and the eye dazzles for a moment. Therefore, it is necessary to narrow the pupil of the eye small before switching to the OVF light image.
- step S11 it is determined whether the measured environmental illuminance is 4000 lux or more, that is, whether the OVF light image is 4000 lux or more (step S11). Then, if the brightness is 4000 lux or more, the process proceeds to step S12, and the brightness of the EVF image is stepped up by 500 lux by 2000 ⁇ 2500 ⁇ 3000 ⁇ 3500 lux, and the process proceeds to step S13 to display the EVF image The brightness is 4000 lux.
- the OVF shutter 62 is opened, the OVF light image is introduced into the finder device 15, and this process is ended. Since the EVF image is brightened to 4000 lux, the pupil of the eye is sufficiently small, and even if the 6000 lux OVF light image comes into the finder device 15, the eye responds to this change in brightness. It becomes possible to cope sufficiently.
- step S11 if the environmental illumination is less than 4000 lux, the process skips steps S12 and S13 and proceeds to step S14 to set the OVF shutter 62 to "open", and the process ends.
- FIG. 10A is a graph showing a change in brightness when a bright OVF light image is projected into the finder device 15 with the OVF shutter “open” without performing the process of the embodiment shown in FIG.
- an OVF light image of 6000 lux of 4000 lux difference suddenly enters the eye, and the eye is dazzled for a moment.
- FIG. 10B is a graph showing a change in brightness in the finder device 15 when the process of the embodiment described in FIG. 9 is performed.
- the brightness of the EVF image is increased from 2000 lux to 4000 lux by the timing of opening the OVF shutter, so the difference with the brightness of the OVF light image is reduced to 2000 lux.
- the OVF shutter is "opened", the eyes become accustomed to bright light and the pupil becomes smaller, so that the eyes will not be dazzled.
- the brightness of the EVF image is increased with 4000 lux as the upper limit, but the brightness of the OVF light image (6000 lux in this example) is further gradually increased. You may raise it. However, if the brightness exceeds a certain threshold (4000 lux in the above example), the upper limit (4000 lux) is set for the brightness to reduce control load, because the eye gets used to a bright image. good.
- the timing at which the OVF shutter is “opened” is determined by comparing the brightness of the OVF light image and the brightness of the EVF image.
- FIG. 11 is an explanatory view of a third embodiment of the present invention.
- the photographed image is displayed on the LCD 40 or the display device 61 for EVF in FIG. This is referred to as a preview display, and is displayed, for example, for about 2 seconds, as shown in FIG.
- the present invention is not limited to 2 seconds, and may be displayed until the next shutter button is pressed, for example.
- the preview display is performed by the finder device 15
- the photographer looking through the finder suddenly looks at the preview display of 2000 lux
- the eyes may be dazzled. Therefore, as shown in the lower part of FIG. 11, when the preview display is performed on the EVF display device 61, the brightness is gradually increased in stages so that the 2000 lux preview display is finally performed for 2 seconds. . This enables easy-to-see preview display.
- the display of the review with appropriate brightness for example, 2000 lux
- appropriate brightness for example, 2000 lux
- three stages are set to 2000 lux, but two stages may be used.
- FIG. 12 is a flowchart showing the procedure of the brightness display control method according to the fourth embodiment of the present invention.
- the subject light image through the photographing lens is displayed in the finder, but an EVF image can be displayed in the finder as in the above-described embodiment. It is.
- the finder device 15 is equipped with an eye (EYE) sensor that detects that the photographer looks through the finder, and performs the following display control.
- EYE eye
- the eye sensor waits for detection of the eye of the photographer (step S21).
- the process proceeds to the next step S22.
- step S22 it is determined whether the environmental illumination is more than the required brightness, for example, 1000 lux or more, and when it is determined that the environment is darker than 1000 lux (determination result is No), the next step S23 is performed. Go to
- step S23 the display brightness of the EVF image is set to a dark predetermined brightness, for example, 500 lux, and the process waits for a predetermined time T. Then, in the next step S24, the display brightness of the EVF image is stepped up to an upper limit value (in this example, 2000 lux) in increments of 500 lux, and in step S25, this processing is ended with the brightness of the EVF image being 2000 lux.
- a dark predetermined brightness for example, 500 lux
- step S22 when the environmental illumination is at a brightness of 1000 lux or more, the process jumps to step S25, and the process is ended with the display brightness of the EVF image being 2000 lux.
- FIG. 13 is a graph showing how the brightness of the EVF image changes according to the flowchart of FIG.
- the EVF image is displayed by the detection on of the EYE sensor, but first, a 500 lux dark image is displayed for a predetermined time T.
- the waiting time T is determined in consideration of the stroke in which the photographer brings the pupil close to the photographer side finder observation window after the EYE sensor detects the photographer's eyes.
- the display brightness of the EVF image is stepped up by 500 lux each time as in the above-described embodiments, and the predetermined brightness (2000 lux) determined in advance is reached.
- the display brightness of the EVF image is fixed to a predetermined brightness.
- the brightness of the EVF image is made stepwise or stepwise, but it is not stepwise but linearly, or the inclination angle of this straight line is halfway between control start and control end It may be bright as it changes.
- the user may switch the finder device 15 to the OVF.
- the ambient light may be darker than the EVF image, contrary to the embodiment of FIG. In this case, even if the image is suddenly switched to the OVF image, the eye may not be dazzled, so the image may be switched suddenly.
- the brightness of the EVF image for example, by 500 lux, and bring it closer to the brightness of the OVF image, and switch to the OVF image while gradually expanding the pupil to get used to the dark image quickly.
- FIG. 14 is a view showing a change in brightness of the EVF image in the case where the brightness of the EVF image is gradually decreased and switched to the OVF image.
- the case of gradually brightening the EVF image (for example, the embodiment of FIG. 7) is compared.
- FIG. 14A shows an example (B ⁇ A) in which the change speed B in the case of gradually darkening is made slower than the change speed A in the case of gradually lightening.
- the wide-narrow follow-up speed of the pupil is faster at a speed changing from a widening state to a narrowing state than at a changing speed from a narrowing state to a widening state. Therefore, in the case of darkening the EVF image in consideration of the movement of the pupil, it is preferable to change at a slower speed than in the case of brightening.
- the eye of the photographer looking through the finder can always capture the subject image. That is, even when the bright EVF image is gradually darkening, even when the image is switched to the OVF image, the eyes can always be kept accustomed to the lightness (darkness), and shooting can be performed without missing the photo opportunity. It will be possible to do.
- FIG. 14B shows an example (B> A) in which the change speed B in the case of gradually darkening is made faster than the change speed A in the case of gradually lightening. Since the rate of change B is faster than the rate of change of the pupil, it is configured to wait for the eyes to become accustomed at each brightness step shown stepwise in FIG. 14 (b). It is possible to shorten the time to get used to the darkness of.
- FIG. 14A When switching between EVF and OVF occurs under ambient light where the OVF image is dark, switching according to FIG. 14A, switching according to FIG. 14B, or suddenly switching to the OVF image is performed. Whether to switch may depend on the preference of each user, and may be configured to make the user select on the menu screen. Alternatively, FIG. 14A may be set by default, and may be changed by a user's instruction. The control of FIGS. 14 (a) and 14 (b) can be used in combination with each of the embodiments of FIGS. 6 to 13 described above.
- the display control method and apparatus of the finder apparatus includes: a half mirror provided in the finder apparatus for transmitting an incident light image from the object side and projecting the light image to the photographer side finder viewing window; A display panel provided at a position facing the half mirror, and displaying a captured image of the subject captured by an imaging device at a predetermined brightness, reflecting the displayed captured image by the half mirror, and capturing the captured image
- a finder apparatus including a display panel that projects to the user-side finder viewing window side, the brightness of the display image to be displayed on the display panel is gradually changed so as to be brightened to the predetermined brightness or from the predetermined brightness Furthermore, it is characterized by making it bright gradually.
- the display image of the display image is provided in the finder device and interlocked with an opening / closing operation of a shutter for opening / closing controlling the incidence of the incident light image on the half mirror. It is characterized by controlling the brightness.
- the display brightness of the image is gradually increased when the image is displayed on the display panel in a state where the incident light image is darker than a predetermined threshold value. It is characterized by brightness.
- the display control method of the finder device according to the embodiment and the device thereof are characterized in that the time and inclination to make the brightness gradually change according to the type of the subject.
- the brightness of the subject is shorter than the threshold with respect to the time and inclination when the brightness of the subject is less than the threshold. It is characterized in that the display brightness is brightened at a steep inclination.
- the display brightness of the subject image is gradually increased to display the subject image when the photographed image is displayed on the display panel with the shutter closed. It is characterized in that it has a predetermined brightness.
- the display control method of the finder device when the image is displayed on the display panel with the shutter closed, the presence of the eye of the photographer is detected by a sensor before the image is displayed.
- the display brightness is gradually increased to the predetermined brightness.
- the display control method of the finder device according to the embodiment and the device thereof are characterized in that a predetermined standby time is provided from the detection of the presence of the eye by the sensor to the start of the control for gradually brightening the display brightness. I assume.
- the display control method of the finder device of the embodiment and the device thereof are characterized in that the display brightness of the image during the standby time is maintained as a predetermined dark brightness.
- the shutter is closed when the shutter changes to an open state after the shutter is displayed and an image having the predetermined brightness is displayed on the display panel.
- the brightness of the incident light image is detected, and when the brightness of the incident light image is brighter than the predetermined brightness by a predetermined threshold or more, the display image is gradually brightened than the predetermined brightness.
- the brightness of the incident light image may be within a predetermined value.
- the display control method of the finder device when switching the image projected on the side of the photographer-side finder viewing window of the finder device from the bright display image of the display panel to the dark incident light image
- the display image of the display panel is gradually darkened and then switched to the incident light image, and control is performed so that the gradually changing display change rate and the gradually changing display change rate are different.
- the display control method of the finder device according to the embodiment and the device thereof are characterized in that the gradually changing display change rate is slower than the gradually changing display change rate.
- the display control method of the finder device according to the embodiment and the device thereof are characterized in that the gradually changing display change rate is made faster than the gradually changing display change rate.
- the display brightness of the EVF image displayed on the display panel gradually changes, it is possible to see an image that is suddenly bright without glare and to facilitate visual recognition of the image.
- the display control method of the finder device when the EVF image is displayed, the brightness is controlled to be gradually bright in consideration of the changing speed of the pupil of the photographer. There is no dazzling. Therefore, it is useful to apply to a digital camera equipped with a finder device that implements this display control method.
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Abstract
Description
本発明を詳細に又は特定の実施形態を参照して説明したが、本発明の精神と範囲を逸脱することなく様々な変更や修正を加えることができることは当業者にとって明らかである。
本出願は、2010年9月17日出願の日本特許出願(特願2010-210226)に基づくものであり、その内容はここに参照として取り込まれる。
11 筐体
13 撮影レンズ
15 ハイブリッドなファインダ装置
16 被写体側ファインダ窓
17 撮影者側覗き窓
21 固体撮像素子
32 CPU
33 画像信号処理回路
61 EVF用表示装置
62 OVFシャッタ
63 ハーフミラー
Claims (26)
- ファインダ装置内に設けられ被写体側からの入射光像を透過して撮影者側ファインダ覗き窓側に投射するハーフミラーと、前記ファインダ装置内の前記ハーフミラーに対面する位置に設けられる表示パネルであって撮像素子で撮影した前記被写体の撮像画像を所定明るさで表示し該表示した前記撮像画像を前記ハーフミラーで反射させて前記撮影者側ファインダ覗き窓側に投射する表示パネルと、該表示パネルに表示させる前記表示画像の明るさを徐々に明るくなるように変化させて前記所定明るさにし又は該所定明るさから更に徐々に明るくする表示制御部とを備えるファインダ装置の表示制御装置。
- 請求項1に記載のファインダ装置の表示制御装置であって、前記ファインダ装置内に設けられ前記入射光像の前記ハーフミラーへの入射を開閉制御するシャッタを備えるファインダ装置の表示制御装置。
- 請求項1又は請求項2に記載のファインダ装置の表示制御装置であって、前記表示制御部は、前記入射光像が所定閾値より暗い状態で前記表示パネルに画像を表示させるとき該画像の表示明るさを徐々に明るくして前記所定明るさにするファインダ装置の表示制御装置。
- 請求項3に記載のファインダ装置の表示制御装置であって、前記表示制御部は、前記徐々に明るくする時間及び傾きを、前記被写体の種別に応じて変えるファインダ装置の表示制御装置。
- 請求項4に記載のファインダ装置の表示制御装置であって、前記被写体の明るさが閾値未満の場合の前記時間及び傾きに対し、前記被写体の明るさが前記閾値以上の場合には短時間且つ急傾斜で表示明るさを明るくするファインダ装置の表示制御装置。
- 請求項2に記載のファインダ装置の表示制御装置であって、前記表示制御部は、前記シャッタを閉じた状態で前記表示パネルに撮影済みの被写体画像を表示させるとき該被写体画像の表示明るさを徐々に明るくして前記所定明るさにするファインダ装置の表示制御装置。
- 請求項2に記載のファインダ装置の表示制御装置であって、撮影者の目の存在を検知するセンサを備え、前記表示制御部は、前記シャッタが閉じた状態で前記表示パネルに画像を表示させる場合に、前記センサが前記目の存在を検知したとき該画像の表示明るさを徐々に明るくして前記所定明るさにするファインダ装置の表示制御装置。
- 請求項7に記載のファインダ装置の表示制御装置であって、前記表示制御部は、前記センサが目の存在を検知してから前記表示明るさを徐々に明るくする制御の開始まで所定の待機時間を設けたファインダ装置の表示制御装置。
- 請求項8に記載のファインダ装置の表示制御装置であって、前記待機時間中の前記画像の表示明るさを所定の暗い明るさとして維持するファインダ装置の表示制御装置。
- 請求項2に記載のファインダ装置の表示制御装置であって、前記シャッタが閉状態且つ前記表示パネルに前記所定明るさの画像を表示させた後に該シャッタが開状態に変化するとき、前記表示制御部は、前記シャッタが開状態となる前に、前記入射光像の明るさを検知し、該入射光像の明るさが前記所定明るさより所定閾値以上明るい場合には、前記表示画像を前記所定明るさより徐々に明るくして前記入射光像の明るさに対し所定値以内にするファインダ装置の表示制御装置。
- 請求項1乃至請求項10のいずれか1項に記載のファインダ装置の表示制御装置であって、前記表示制御部は、前記ファインダ装置の前記撮影者側ファインダ覗き窓側に投射される画像を前記表示パネルの明るい表示画像から暗い前記入射光像に切り替えるとき該表示パネルの表示画像を徐々に暗くしてから前記入射光像に切り替え、かつ、前記徐々に暗くする表示変化速度と前記徐々に明るくする表示変化速度とが異なるように制御するファインダ装置の表示制御装置。
- 請求項11に記載のファインダ装置の表示制御装置であって、前記徐々に暗くする表示変化速度を、前記徐々に明るくする表示変化速度より遅くしたファインダ装置の表示制御装置。
- 請求項11に記載のファインダ装置の表示制御装置であって、前記徐々に暗くする表示変化速度を、前記徐々に明るくする表示変化速度より速くしたファインダ装置の表示制御装置。
- ファインダ装置内に設けられ被写体側からの入射光像を透過して撮影者側ファインダ覗き窓側に投射するハーフミラーと、前記ファインダ装置内の前記ハーフミラーに対面する位置に設けられる表示パネルであって撮像素子で撮影した前記被写体の撮像画像を所定明るさで表示し該表示した前記撮像画像を前記ハーフミラーで反射させて前記撮影者側ファインダ覗き窓側に投射する表示パネルとを備えるファインダ装置の表示制御方法であって、前記表示パネルに表示させる前記表示画像の明るさを徐々に明るくなるように変化させて前記所定明るさにし又は該所定明るさから更に徐々に明るくするファインダ装置の表示制御方法。
- 請求項14に記載のファインダ装置の表示制御方法であって、前記ファインダ装置内に設けられ前記入射光像の前記ハーフミラーへの入射を開閉制御するシャッタの開閉動作に連動して前記表示画像の明るさを制御するファインダ装置の表示制御方法。
- 請求項14又は請求項15に記載のファインダ装置の表示制御方法であって、前記入射光像が所定閾値より暗い状態で前記表示パネルに画像を表示させるとき該画像の表示明るさを徐々に明るくして前記所定明るさにするファインダ装置の表示制御方法。
- 請求項16に記載のファインダ装置の表示制御方法であって、前記徐々に明るくする時間及び傾きを、前記被写体の種別に応じて変えるファインダ装置の表示制御方法。
- 請求項16に記載のファインダ装置の表示制御方法であって、前記被写体の明るさが閾値未満の場合の前記時間及び傾きに対し、前記被写体の明るさが前記閾値以上の場合には短時間且つ急傾斜で表示明るさを明るくするファインダ装置の表示制御方法。
- 請求項15に記載のファインダ装置の表示制御方法であって、前記シャッタを閉じた状態で前記表示パネルに撮影済みの被写体画像を表示させるとき該被写体画像の表示明るさを徐々に明るくして前記所定明るさにするファインダ装置の表示制御方法。
- 請求項15に記載のファインダ装置の表示制御方法であって、前記シャッタが閉じた状態で前記表示パネルに画像を表示させる場合に、撮影者の目の存在をセンサで検知してから前記画像の表示明るさを徐々に明るくして前記所定明るさにするファインダ装置の表示制御方法。
- 請求項20に記載のファインダ装置の表示制御方法であって、前記センサが目の存在を検知してから前記表示明るさを徐々に明るくする制御の開始まで所定の待機時間を設けたファインダ装置の表示制御方法。
- 請求項21に記載のファインダ装置の表示制御方法であって、前記待機時間中の前記画像の表示明るさを所定の暗い明るさとして維持するファインダ装置の表示制御方法。
- 請求項15に記載のファインダ装置の表示制御方法であって、前記シャッタが閉状態且つ前記表示パネルに前記所定明るさの画像を表示させた後に該シャッタが開状態に変化するとき、前記シャッタが開状態となる前に、前記入射光像の明るさを検知し、該入射光像の明るさが前記所定明るさより所定閾値以上明るい場合には、前記表示画像を前記所定明るさより徐々に明るくして前記入射光像の明るさに対し所定値以内にするファインダ装置の表示制御方法。
- 請求項14乃至請求項23のいずれか1項に記載のファインダ装置の表示制御方法であって、前記ファインダ装置の前記撮影者側ファインダ覗き窓側に投射される画像を前記表示パネルの明るい表示画像から暗い前記入射光像に切り替えるとき該表示パネルの表示画像を徐々に暗くしてから前記入射光像に切り替え、かつ、前記徐々に暗くする表示変化速度と前記徐々に明るくする表示変化速度とが異なるように制御するファインダ装置の表示制御方法。
- 請求項24に記載のファインダ装置の表示制御方法であって、前記徐々に暗くする表示変化速度を、前記徐々に明るくする表示変化速度より遅くしたファインダ装置の表示制御方法。
- 請求項24に記載のファインダ装置の表示制御方法であって、前記徐々に暗くする表示変化速度を、前記徐々に明るくする表示変化速度より速くしたファインダ装置の表示制御方法。
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US8872957B2 (en) | 2014-10-28 |
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