JP2006237922A - Photographic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photographic apparatus having ease of use for forming an image of object light made incident via a photographic optical system onto an imaging element to generate image data. <P>SOLUTION: A transparent display board 10_43 comprising an optically transparent board whereon light transparent LEDs are two-dimensionally mounted is arranged between an objective lens 10_41 and an eyepiece lens 10_42, and a display control section 129 lights the LEDs on the transparent display board 10_43, on the basis of image data representing a region equivalent to a region segmented by an electronic zoom means so as to display the frame representing the magnification of electronic zoom in an optical finder 10_4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a photographing apparatus that generates image data by forming an image of subject light incident via a photographing optical system on an image sensor.

2. Description of the Related Art Conventionally, a camera equipped with an optical viewfinder is known as a photographing apparatus that forms image data by imaging subject light incident via a photographing optical system on an image sensor. In such a camera, a camera provided with a liquid crystal display that is provided in the vicinity of the eyepiece of the optical viewfinder and warns by blinking a camera shake icon, a battery icon, or the like with a backlight has been proposed. (See Patent Document 1). According to this camera, for example, when a camera shake error occurs during shooting, the camera shake icon blinks into the photographer's field of view when the photographer looks into the eyepiece of the optical viewfinder. Can recognize camera shake errors.
JP 2004-177448 A

  2. Description of the Related Art Conventional cameras having an optical viewfinder are known that have an optical zoom function and an electronic zoom function. In such a camera, in the zoom operation, the optical zoom function is first operated, and the electronic zoom function is continuously operated. In this case, the angle of view of the subject in the optical viewfinder is enlarged corresponding to the optical zoom, but when switched to the electronic zoom, the display by the electronic zoom cannot be performed with the optical viewfinder. When taking a picture through an optical viewfinder, it is difficult to confirm to what extent the angle of view of the subject has been expanded. Here, by applying the technique proposed in Patent Document 1 described above, an image of the subject is displayed in the vicinity of the eyepiece portion of the optical viewfinder by flashing and displaying an enlarged frame corresponding to the electronic zoom. It is conceivable to guess how far the corner has been expanded. However, it is difficult to reliably recognize to what extent the angle of view of the subject has been enlarged in response to the electronic zoom.

  In general, a digital camera is provided with a liquid crystal monitor (LCD) on the back, and an angle of view of a subject displayed on the LCD is enlarged corresponding to an electronic zoom. However, for example, the subject brightness is too low at night and the surroundings are dark, so the entire LCD screen becomes dark. Conversely, the subject brightness is too high in places where the sun is strong and the sun is strong. The whole becomes brighter. Therefore, it is difficult to confirm the angle of view of the subject displayed on the LCD. In such a place, there is a case where an intended photograph cannot be taken unless an image is taken using an optical viewfinder. However, since the optical viewfinder has the above-described problems, there is a problem that the usability is poor.

  In view of the above circumstances, an object of the present invention is to provide an imaging device that is easy to use.

The first photographing device of the photographing device of the present invention that achieves the above object is a photographing device that forms image data by forming an image of subject light incident via a photographing optical system on an image pickup device.
An optical viewfinder in which a transmissive display board in which a light-transmitting light emitter is two-dimensionally mounted is disposed at a position overlapping with a subject image;
Electronic zoom means for generating image data obtained by cutting out an image in a region of an area designated according to an operation at the center of the subject image formed on the image sensor;
And display control means for partitioning an area corresponding to the area cut out by the electronic zoom means by turning on or flashing the light-transmitting light-emitting body.

  The first photographing apparatus of the present invention has an area corresponding to the area cut out by the electronic zoom means by turning on or blinking a light-transmitting light emitting element arranged at a position overlapping the subject image in the optical viewfinder. It is something to divide. For this reason, the photographer can confirm in the optical viewfinder how far the field angle of the subject has been enlarged in response to the electronic zoom. In addition, the angle of view of the subject can be confirmed even when optical zoom or electronic zoom is performed in a dark place or in a place with strong sunlight. Therefore, a user-friendly imaging device is realized.

The second imaging device of the imaging device of the present invention that achieves the above object is an imaging device that generates image data by forming an image of subject light incident via an imaging optical system on an imaging device. In
An optical viewfinder in which a transmissive display board in which a light-transmitting light emitter is two-dimensionally mounted is disposed at a position overlapping with a subject image;
An area setting means for setting an in-focus area on the subject;
And a display control unit that divides a region corresponding to the in-focus region set by the region setting unit by turning on or blinking the light-transmitting light emitter.

  The second photographing apparatus of the present invention partitions an area corresponding to the in-focus area by turning on or blinking a light-transmitting light emitting element disposed at a position overlapping the subject image in the optical viewfinder. . For this reason, the photographer can immediately confirm the focus area in the optical viewfinder. Therefore, a user-friendly imaging device is realized.

  Here, in the second photographing apparatus of the present invention, it is preferable that the area setting means sets the in-focus area by a user operation.

  In this way, the user can freely set a desired focus area and check the set focus area.

  In the second imaging apparatus of the present invention, it is also a preferred aspect that the area setting means automatically sets the in-focus area.

  In this way, since the in-focus area can be confirmed immediately, it is possible to prevent missing a photo opportunity.

Furthermore, a third imaging apparatus of the imaging apparatus of the present invention that achieves the above object is an imaging apparatus that forms image data by forming an image of subject light incident via an imaging optical system on an imaging element. In
An optical viewfinder in which a transmissive display board in which a light-transmitting light emitter is two-dimensionally mounted is disposed at a position overlapping with a subject image;
Area setting means for setting a photometric area for performing photometry on the subject;
And display control means for partitioning an area corresponding to the photometric area set by the area setting means by turning on or blinking the light-transmitting light emitter.

  The third photographing apparatus of the present invention divides an area corresponding to a photometric area by lighting or blinking of a light-transmitting light emitting element arranged at a position overlapping with a subject image in the optical viewfinder. For this reason, the photographer can immediately confirm the photometry area in the optical viewfinder. Therefore, a user-friendly imaging device is realized.

  Here, in the third imaging apparatus of the present invention, it is preferable that the area setting means sets a photometric area by a user operation.

  In this way, the user can freely set a desired photometry area and check the set photometry area.

  In the third imaging apparatus of the present invention, it is also a preferred aspect that the area setting means automatically sets a photometric area.

  In this way, the photometric area can be confirmed immediately.

  Furthermore, in the first, second, and third photographing apparatuses of the present invention, the display control means turns on or blinks the light-transmitting light-emitting body with brightness according to the field luminance. Is preferred.

  In this way, since the brightness of the transparent display plate of the optical finder can be switched according to the shooting situation, it is easy to see the area, the focus area, and the photometry area cut out by the electronic zoom means.

  According to the present invention, it is possible to provide an imaging device that is easy to use.

  Embodiments of the present invention will be described below.

  FIG. 1 is an external perspective view of a digital camera according to an embodiment of the first photographing apparatus of the present invention as seen from the front obliquely above.

  A zoom lens barrel 10_1 having a zoom lens 10_1a therein is provided at the center of the front surface of the digital camera 10 shown in FIG. Further, on the front upper portion of the digital camera 10, a flash light emitting unit 10_2 that emits a flash in synchronization with photographing, and a flash light control that detects the light amount of the flash to control the light amount of the flash from the flash light emitting unit 10_2. A sensor 10_3 and an optical viewfinder objective window 10_41a constituting an optical viewfinder described later are provided.

  Further, on the left side of the front surface of the digital camera 10, there are provided a grip 10_5 having a shape that can securely hold the digital camera 10 and a self-timer lamp 10_6 that blinks when the self-timer is activated.

  Further, on the upper surface of the digital camera 10, a shutter button 10_8, a mode dial 10_9 for performing various settings, and a power button 10_10 are provided.

  FIG. 2 is an external view of the digital camera shown in FIG. 1 as viewed from above.

  In addition to the flash light emitting unit 10_2, the shutter button 10_8, the mode dial 10_9, and the power button 10_10 described above, the digital camera 10 includes a flash light emitting unit on an inclined surface provided from the upper side to the lower side of the digital camera 10. A pop-up button 10_12 for popping up 10_2 is provided. Further, the mode dial 10_9 includes a character AUTO indicating the auto mode, P indicating the program auto mode, S indicating the shutter speed priority auto mode, A indicating the aperture priority auto mode, M indicating the manual mode, and a picture indicating the moving image mode. , And four pictures showing four scene positions (night view, sports, landscape, person scene position) are printed. A desired mode can be set by rotating the mode dial 10_9. Here, each mode will be briefly described.

  The auto mode (AUTO) is a mode for controlling all of exposure, white balance and the like on the camera side. The program auto mode (P) is a mode for automatically setting the shutter speed and the aperture. The shutter speed priority auto mode (S) is a mode for preferentially setting the shutter speed. The aperture priority auto mode (A) is a mode for preferentially setting the aperture. The manual mode (M) is a mode for freely setting the shutter speed and the aperture. The moving image mode indicated by the picture next to the manual mode (M) is a mode for moving image shooting.

  In addition, there are four scene position modes for selecting four shooting scenes (night view, sports, landscape, and person) clockwise as viewed from the moving image mode.

  The scene position mode for night view is a mode suitable for shooting taking advantage of the atmosphere such as sunset view and night view. The scene position mode for sports is a mode suitable for shooting a moving body including a sports scene. The scene position mode for landscape is a mode suitable for photographing landscapes in the daytime such as buildings and mountains. The scene position mode for a person is a mode suitable for portrait photography that can make skin color appear more beautiful.

  FIG. 3 is an external view of the digital camera shown in FIG. 1 as viewed from the back.

  An optical viewfinder eyepiece window 10_42b that constitutes an optical viewfinder, an exposure correction button 10_24, and a wide-angle zoom button that zooms up to the wide-angle side (wide side) by pressing the digital camera 10 shown in FIG. 10_25, a telephoto zoom button 10_26 that zooms in on the telephoto side (telephoto side) when pressed, and a mode switch 10_27 that switches between the shooting mode side 10_27a and the playback mode side 10_27b.

  Further, below the mode switch 10_27, a photo mode button 10_30, a cross button 10_31, a menu / OK button 10_32, and a DISP / BACK button 10_33 are provided. Furthermore, a liquid crystal monitor 10_34 is provided at the center of the back surface of the digital camera 10.

  The photo mode button 10_30 is a button for setting the number of pixels, sensitivity, color, number of prints, and the like.

  When a menu screen or the like is displayed on the liquid crystal monitor 10_34, the cross button 10_31 is operated by operating the four buttons of the upper button 10_31a, the lower button 10_31b, the left button 10_31c, and the right button 10_31d of the cross key 10_31. Menu selection can be made. The left button 10_31c is also a button for switching whether or not to perform macro shooting. When the button is pressed once, the macro shooting mode is set, and when pressed again, the macro shooting mode is canceled. Further, the right button 10_31d is also a button that plays the role of a flash button, and each time it is pressed, the flash state is repeatedly switched in the order of auto flash → red eye reduction flash → forced flash → flash prohibition → slow sync → auto flash. It is also a button.

  The menu / OK button 10_32 is a button for displaying various menus at the time of shooting or reproduction and determining a selected menu.

  The DISP / BACK button 10_33 serves as both a DISP button and a BACK button. In the case of the role of the DISP button, it is a button for switching the state of the screen displayed on the liquid crystal monitor 10_34. For example, the display of the liquid crystal monitor 10_34 is turned on / off during shooting, and the character display is turned on / off during reproduction. To do. On the other hand, in the case of the role of the BACK button, it is a button for returning or canceling the operation state by the MENU / OK button 10_32 or the like.

  The liquid crystal monitor 10_34 displays an image based on image data generated by capturing subject light with the digital camera 10 and a message based on message display character data.

  4 is an external view of the digital camera shown in FIG. 1 as viewed from below.

  The digital camera 10 is provided with a battery cover 10_13. FIG. 4 shows the digital camera 10 with the battery cover 10_13 opened.

  The digital camera 10 is provided with a battery insertion portion 10_14 into which the battery 100 is inserted. Further, the digital camera 10 is provided with a recording medium slot 10_15 into which the recording medium 10_54 is inserted. The digital camera 10 is also provided with a tripod screw hole 10_16.

  FIG. 5 is a diagram showing an internal configuration of the digital camera shown in FIG.

  The digital camera 10 performs zooming, focusing, and exposure amount adjustment by driving the zoom lens 10_1a, iris 10_1b, and focus lens 10_1c constituting the photographing optical system, and the zoom lens 10_1a, iris 10_1b, and focus lens 10_1c. Motor drivers 111, 112, and 113 are provided.

  Further, the digital camera 10 is provided with a CCD 114 (corresponding to an example of an image sensor according to the present invention), a timing generator 115, and an MPU (Micro Processor Unit) 116.

  The CCD 114 is a solid-state imaging device that captures subject light that has passed through the zoom lens 10_1a, the iris 10_1b, and the focus lens 10_1c. The CCD 1114 includes a large number of photoelectric conversion elements such as photodiodes that convert incident subject light into image signals that are electrical signals.

  The timing generator 115 drives the CCD 114 at a predetermined timing according to an instruction from the MPU 116. As a result, the subject light incident on the CCD 114 is photoelectrically converted at a predetermined frame rate and output from the CCD 114 as an analog image signal.

  The MPU 116 controls the entire digital camera 10. Specifically, the ROM 116a is built in the MPU 116, and the operation of the entire digital camera 10 is controlled according to the program procedure of the built-in ROM 116a.

  Further, the digital camera 10 includes a CDSAMP 117 that performs processing for reducing noise of the analog image signal output from the CCD 114, and A / A that performs analog / digital conversion of the analog image signal subjected to the processing to a digital image signal. A D conversion unit 1118 and an image input controller 119 for transferring image data composed of RGB converted into digital image signals by the A / D conversion unit 118 to the SDRAM 125 as a memory via a data bus are provided.

  In addition, the digital camera 10 reads the image data of the SDRAM 125 and executes an image processing process 120 for executing an image processing process for converting into an YC signal, and executes a JPEG process when the image processing process is completed. A compression processing unit 121 for compressing the image data, and a Video / LCD encoder 122 for converting the image data into a video signal and leading it to the liquid crystal monitor 10_34 described above.

  Further, the digital camera 10 includes an AF detection unit 123 that detects image focus information, an AE & AWB detection unit 124 that detects image brightness information and white balance information, and an SDRAM 125 that is also used as a work area memory. , A VRAM 126 as a display buffer having an A area and a B area, and a media controller 127 for performing control for storing image data in the recording medium 10_54 described above.

  In FIG. 5, the operation including the mode dial 10_9, the pop-up button 10_12, the exposure correction button 10_24, the mode switch 10_27, the photo mode button 10_30, the cross button 10_31, the menu / OK button 10_32, and the DISP / BACK button 10_33. Part 10_100 is shown.

  Further, the digital camera 10 includes an electronic zoom unit 128, a display control unit 129, and an optical viewfinder 10_4. The electronic zoom unit 128, the display control unit 129, and the optical viewfinder 10_4 will be described later. First, the general operation of the digital camera 10 will be described.

  The operation of the digital camera 10 is comprehensively controlled by the MPU 116. The MPU 116 has a built-in ROM 116a, and a program is stored in the built-in ROM 116a. The entire operation of the digital camera 10 is controlled by the MPU 116 according to the procedure of this program. Further, when the MPU 116 controls the entire digital camera 10 in accordance with the program procedure described in the ROM 1116a, the SDRAM 125 temporarily stores image data being processed.

  The VRAM 126 as a display buffer stores image data representing a through image in order in the A area and the B area, and the image data in these areas are alternately supplied to the Video / LCD encoder 122 and based on the image data. The images are sequentially switched and displayed as a through image on the liquid crystal monitor 10_34.

  First, the flow of image data when the mode dial 10_9 (see FIG. 2) is switched to the auto mode (AUTO) and shooting is performed will be described with reference to FIG.

  When the mode dial 10_9 is switched to the auto mode (AUTO), the MPU 116 captures the subject light passing through the photographing optical system by the CCD 114, and outputs the image data generated by the CCD 114 to the CDSAMP 117 side at predetermined intervals. The data is converted into image data that can be displayed by the / D conversion unit 118, the image input controller 119, and the image signal processing unit 120, and the through image is displayed on the screen of the liquid crystal monitor 10_34. Framing is arbitrarily performed based on the through image, and the AF detection unit 123 continuously moves the focus lens 10_1c back and forth to perform in-focus detection to form an image focused on the center of the framing on the CCD 114. At this time, the AE & AWB detection unit 124 detects the field luminance, and based on the detection result, the motor driver 112 sets a small aperture or an open aperture, or each color signal of R, G, B for white balance adjustment. The gain is adjusted. In this way, image data representing a focused image whose exposure is adjusted according to the field luminance is output to the CDSAMP 117 at predetermined intervals according to the timing signal from the timing generator 115, and a through image is displayed at a later stage. It has gained. The photographer performs framing while viewing the through image, and performs a release operation at a photo opportunity.

  When the release operation is performed, the MPU 116 supplies a timing signal from the timing generator 115 in order to form an image at the time of the release operation on the CCD 114. This timing signal informs the CCD 114 of the start and end of exposure and corresponds to a so-called shutter speed. At the end of the exposure, the MPU 116 outputs image data (image data composed of the three primary colors R, G, and B of RGB light) from the CCD 114 and supplies it to the subsequent CDSAMP 117. Further, the noise of the image data output from the CCD 114 is reduced by the CDSAMP 117, and the image data with the reduced noise is converted into a digital signal by the A / D conversion unit 118. The RGB image data converted into digital signals by the A / D conversion unit 118 is supplied to the SDRAM 125 via the data bus by the subsequent image input controller 119, and the image data of all the pixels of the CCD 114 is stored in the SDRAM 125. Remembered. When the image data corresponding to all the pixel data is stored in the SDRAM 125, the MPU 116 activates the image processing process of the image signal processing unit 120, reads the image data of the SDRAM 125 by the image processing process, and outputs the image data to the YC signal. Let the conversion take place. Further, when the MPU 116 detects that the image processing process of the image signal processing unit 120 has been completed, the MPU 116 activates the JPEG process of the compression processing unit 121 and causes the image data to be compressed by the JPEG process. When the MPU 116 detects that the compression processing by the compression processing unit 121 is completed, the MPU 116 next activates a recording processing process, and records JPEG-compressed image data on the recording medium 10_54 via the media controller 127. The above is the flow of shooting data in the auto mode.

  Hereinafter, processing of image data when the mode dial 10_9 is switched to the manual mode will be described.

  When the mode dial 109 is switched to the manual mode (M), shooting conditions are set manually and shooting is performed. In the digital camera 10, a focus point, which is one of the shooting conditions, can be set freely. Here, an exposure condition will be described as one of the shooting conditions and will be described below.

  When the mode dial 10_9 is switched to the manual mode (M), a display screen for correcting the exposure correction value, sharpness, flash light amount and the like is displayed on the liquid crystal monitor 10_34 together with the through image. A selection item on the display screen, for example, an exposure value can be switched with the cross key 10_31.

  Thus, in the manual mode, the photographer can arbitrarily set the photographing conditions, and photographing is performed under these photographing conditions.

  When shooting is performed in such a manual mode, shooting is performed as it is, whether it is underexposed or overexposed depending on the set shooting conditions. For example, the MPU 116 determines this underexposure and overexposure based on the detection result of the AE & AWB detection unit 124.

  Next, operations of the electronic zoom means 128, the display control means 129, and the optical viewfinder 10_4 will be described with reference to FIGS.

  6 is a diagram for explaining the functions of the display control means and the optical viewfinder, and FIG. 7 is a diagram schematically showing the structure of the transmissive display board shown in FIG.

  First, the optical viewfinder 10_4 will be described with reference to FIG. The optical finder 10_4 is provided with an objective lens 10_41 for realizing a zoom finder that changes in accordance with the field of view changed by the zoom lens 10_1a. In addition, the optical viewfinder 10_4 includes a transmissive display plate 10_43 and an eyepiece 10_42 that are disposed at a position overlapping the subject image.

  As shown in FIG. 7, the transmissive display panel 10_43 includes a light transmissive substrate 10_430. Further, on this light transmissive substrate 10_430, a red LED layer 10_431 in which a light transmissive LED 10_43R that emits red light is two-dimensionally mounted and a light transmissive LED 10_43G that emits green light in two dimensions are mounted. The green LED layer 10_432 thus formed and the blue LED layer 10_433 on which the light transmissive LED 10_43B emitting blue light is two-dimensionally mounted are stacked. These light-transmitting LEDs 10_43R, 10_43G, and 10_43B correspond to an example of a light-transmitting light emitter according to the present invention.

  Also, the electronic zoom means 128 shown in FIG. 5 is located in the area of the area designated in accordance with the operation of the wide-angle zoom button 10_25 or the telephoto zoom button 10_26 shown in FIG. 3 at the center of the subject image formed on the CCD 114. The image data obtained by cutting out the image is generated. Further, as shown in FIG. 6, the display control means 129 inputs the image data from the electronic zoom means 123 via the data bus, and based on the image data, the LEDs 10_43R, 10_43G, The area corresponding to the area cut out by the electronic zoom means 128 is defined by lighting (or blinking) 10_43B. Specifically, the digital camera 10 is cut out by the electronic zoom unit 128 of the subject image (see FIG. 6) indicated by the arrow A visually recognized through the optical viewfinder 10_4 as described below. A region corresponding to the region is defined by lighting (or blinking) of the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 of the display control means 129.

  FIG. 8 is a diagram showing a display in electronic zoom in the optical viewfinder shown in FIG.

  FIG. 8 shows a subject image A visually recognized through the optical viewfinder 10_4. Further, FIG. 8 shows frames A1, A2, and A3 that divide three areas corresponding to the three areas on the CCD 114 cut out by the electronic zoom means 128 at positions overlapping the subject image A in the optical viewfinder 10_4. A3 is shown. The frame A0 is due to optical zoom.

  Since display using the electronic zoom cannot be performed with the optical finder 10_4, the frames A1, A2, and A3 representing the magnification of the electronic zoom are displayed (or blinked) with the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43. Thus, the current electronic zoom area can be confirmed.

  FIG. 9 is a flowchart of a frame display routine showing the magnification of the electronic zoom displayed in the optical viewfinder.

  First, in step S1, it is determined whether or not the photographing mode is set. If it is determined that the shooting mode is not selected, this routine is terminated. On the other hand, if it is determined that the shooting mode is set, the process proceeds to step S2.

  In step S2, it is determined whether or not there is zoom control. If it is determined that there is no zoom control, step S2 is repeated. On the other hand, if it is determined that there is zoom control, the process proceeds to step S3. In step S3, optical zoom control is performed.

  In step S4, it is determined whether the optical zoom is full. If it is determined that the optical zoom is not full, the process returns to step S3. On the other hand, if it is determined that the optical zoom is full, the process proceeds to step S5. In step S5, electronic zoom control is performed and the process proceeds to step S6.

  In step S6, a frame display with transparent LEDs (LEDs 10_43R, 10_43G, and 10_43B) is displayed on the optical viewfinder in accordance with the magnification of the electronic zoom, and this routine ends.

Here, a manufacturing method of the LEDs 10_43R, 10_43G, and 10_43B will be described. The LEDs 10_43R, 10_43G, and 10_43B of this embodiment are transparent oxide diodes. In this transparent oxide diode manufacturing method, the transparent substrate on which n-type CuInO ₂ is formed transmits visible light well at room temperature. It is preferable. The light transmittance in the visible light region having a wavelength of 380 nm to 800 nm is preferably 50 to 100%, more preferably 80 to 100%.

  Examples thereof include crystal substrates such as plastic substrates such as polycarbonate and polymethyl methacrylate, glass substrates such as quartz glass and Pyrex (Corning Incorporated registered trademark) glass, and the like. The glass substrate is preferably optically polished on both sides in order to increase the light transmittance.

As a method of laminating the n-type and p-type CuInO ₂ layers, for example, a PLD method, a sputtering method, a CVD method, an MBE method, a vacuum evaporation method, or the like can be selected.

In the growth process of the p-type CuInO _2, when forming the p-type CuInO ₂ layers, it is preferred to introduce 1 × 10 ^-4 Pa~100Pa of oxygen gas as an atmospheric gas into the container. The substrate temperature is more preferably in the range of 300 ° C to 700 ° C.

As the sintered body target, a target obtained by substituting divalent metal ions with 0 to 20 atomic% at the In site is used. The hole concentration can be controlled by the substitution rate of divalent metal ions such as Mg ²⁺ , Ca ²⁺ , Sr ²⁺ , Ba ²⁺ , and Zn ²⁺ . Among these, when Ca ²⁺ is used, the controllability of the hole concentration is good.

In the n-type CuInO ₂ growth method, when the n-type CuInO ₂ layer is formed, it is preferable to introduce oxygen gas of 1 × 10 ⁻⁴ Pa to 100 Pa as an atmospheric gas into the container. The substrate temperature is preferably selected in the range of 200 ° C to 1000 ° C.

As the sintered body target, a target obtained by substituting 0 to 20 atomic% of tetravalent metal ions at the In site is used. The carrier electron concentration can be controlled by the substitution rate of tetravalent metal ions such as Ti ⁴⁺ , Zr ⁴⁺ , Hf ⁴⁺ , Si ⁴⁺ , Ge ⁴⁺ and Sn ⁴⁺ . In particular, when Sn ⁴⁺ is used, the controllability of the electron concentration is good.

  Further, the display control means 129 (see FIG. 4) provided in the digital camera 10 of the present embodiment causes the light transmissive LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 to have brightness according to the field luminance. Lights up (or flashes).

  FIG. 10 is a flowchart of a control routine that is executed by the display control means shown in FIG. 4 and that lights a light transmissive LED with a brightness according to the field luminance.

  In step S11, the power of the digital camera 10 is turned on and the process proceeds to step S12. In step S12, it is determined whether or not the shooting mode is set. If it is determined that the shooting mode is not selected, this routine is terminated. On the other hand, if it is determined that the shooting mode is set, the process proceeds to step S13. In step S13, photometry is performed in the CCD 114.

  Next, in order to determine the three states of “night”, “indoor”, and “outdoor”, it is first determined in step S14 whether the brightness is night. If it is determined that the brightness is night, the process proceeds to step S15. In step S15, the transparent LED is darkly displayed and this routine is terminated. Thus, in the case of night brightness, the transparent LED is displayed dark so that the subject can be easily seen.

  On the other hand, if it is determined in step S14 that the brightness is not night, the process proceeds to step S16. In step S16, it is determined whether the room is bright. If it is determined that the brightness is indoor, the process proceeds to step S17. In step S17, the transparent LED is displayed with normal brightness, and this routine ends. On the other hand, if it is determined that the brightness is not indoor, it is outdoor brightness and the process proceeds to step S18. In step S18, the transparent LED is displayed brightly, and this routine is terminated. As described above, in the case of outdoor brightness, the subject is easily seen by displaying the transparent LED brightly.

  In the digital camera 10 of the present embodiment, the light transmissive LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 disposed in a position overlapping the subject image in the optical finder 1__4 are turned on (or blinked). An area corresponding to the area cut out by the electronic zoom means 128 is defined. For this reason, the photographer can confirm in the optical viewfinder 10_4 how far the field angle of the subject has been enlarged in response to the electronic zoom. In addition, the angle of view of the subject can be confirmed even when optical zoom or electronic zoom is performed in a dark place or in a place with strong sunlight. Therefore, the digital camera 10 that is easy to use is realized.

  FIG. 11 is a diagram illustrating an internal configuration of a digital camera according to an embodiment of the second imaging apparatus of the present invention.

  In addition, since the external view of the digital camera of one Embodiment of the 2nd imaging device of this invention is the same as the external view of the digital camera 10 shown in FIG.1, FIG.2, FIG.3, FIG.4 mentioned above, Illustration is omitted.

  Further, the internal configuration of the digital camera 20 shown in FIG. 11 is different from the internal configuration of the digital camera 10 shown in FIG. 5 in that an area setting unit 228 and a display control unit 229 are used instead of the electronic zoom unit 128 and the display control unit 129. Is provided.

  In the digital camera 20 of the present embodiment, the light transmissive LEDs 10_43R, 10_43G, and 10_43B are two-dimensionally mounted on the light transmissive substrate 10_430 at the position overlapping the subject image in the same manner as the digital camera 10 described above. The optical finder 10_4 on which the transmissive display plate 10_43 is disposed is provided. Further, the digital camera 20 is connected to the optical finder 10_4 by lighting (or blinking) the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 as described below on the transmissive display board 10_43. An area corresponding to the focusing area to be focused is defined.

  The area setting means 228 shown in FIG. 11 sets an in-focus area on the subject. Specifically, the area setting means 228 sets the in-focus area by a user operation when the mode dial 10_9 (see FIG. 2) is switched to the manual mode. The area setting means 228 automatically sets the in-focus area when the mode dial 10_9 is switched to the auto mode.

  The display control means 229 partitions an area corresponding to the in-focus area set by the area setting means 228 by lighting (or blinking) the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43.

  FIG. 12 is a diagram showing a focusing area in the optical viewfinder shown in FIG.

  As shown in FIG. 12, the area setting means 228 divides and displays the inside of the optical viewfinder 10_4 into a plurality (16 in this case) of light transmissive LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43. Here, when the user designates the in-focus area 10_4a (focus area), control is performed so that the in-focus area 10_4a is focused. Further, the frame A1 that divides the designated focusing area 10_4a is lit (or blinked) in a color different from the divided and displayed color by the light transmissive LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43. . By doing in this way, the user can confirm the set focus area 10_43a. Further, the brightness of the light transmissive LEDs 10_43R, 10_43G, and 10_43B is switched according to the brightness of the subject. Specifically, the light transmissive LEDs 10_43R, 10_43G, and 10_43B are displayed darkly at night, and the light transmissive LEDs 10_43R, 10_43G, and 10_43B are displayed brightly during the daytime. Note that the brightness of the subject is measured by CCD photometry.

  FIG. 13 is a flowchart of the focus area frame display routine displayed in the optical viewfinder shown in FIG.

  First, in step S21, it is determined whether or not the photographing mode is set. If it is determined that the shooting mode is not selected, this routine is terminated. On the other hand, if it is determined that the shooting mode is set, the process proceeds to step S22.

  In step S22, a manual focus mode (a mode for setting a focus point in the manual mode) is set. In addition to the manual focus mode, there are a multi-focus mode, a partial photometry mode, and a multi-photometry mode as modes for displaying a frame with transparent LEDs in the optical viewfinder.

  Next, in step S23, a plurality of transparent LEDs (LEDs 10_43R, 10_43G, and 10_43B) are displayed in the optical viewfinder.

  Further, in step S24, the focus point is instructed using a cross button or the like.

  Next, in step S25, the color of the transparent LED in the frame of the designated portion is changed, and this routine is terminated.

  The digital camera 20 of the present embodiment corresponds to the in-focus area by turning on (or blinking) the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 arranged in the position overlapping the subject image in the optical finder 10_4. The area is divided. For this reason, the photographer can immediately confirm the focus area in the optical viewfinder 10_4. Therefore, a user-friendly imaging device is realized.

  FIG. 14 is a diagram showing an internal configuration of a digital camera according to an embodiment of the third photographing apparatus of the present invention.

  In addition, since the external view of the digital camera of one Embodiment of the 3rd imaging device of this invention is the same as the external view of the digital camera 10 shown in FIG.1, FIG.2, FIG.3, FIG.4 mentioned above, Illustration is omitted.

  14 is different from the internal configuration of the digital camera 10 shown in FIG. 5 in that an area setting means 328 and a display control means 329 are used instead of the electronic zoom means 128 and the display control means 129. Is provided.

  In the digital camera 30 of the present embodiment, the light transmissive LEDs 10_43R, 10_43G, and 10_43B are two-dimensionally mounted on the light transmissive substrate 10_430 at the position overlapping the subject image in the same manner as the digital camera 10 described above. The optical finder 10_4 on which the transmissive display plate 10_43 is disposed is provided. Further, the digital camera 20 is connected to the optical finder 10_4 by lighting (or blinking) the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 as described below on the transmissive display board 10_43. An area corresponding to the photometric area is defined.

  The area setting unit 328 shown in FIG. 14 sets a photometric area for performing photometry on the subject. Specifically, the area setting means 328 sets the photometric area by a user operation when the mode dial 10_9 (see FIG. 2) is switched to the manual mode. The area setting means 328 automatically sets the photometric area when the mode dial 10_9 is switched to the auto mode.

  The display control means 329 partitions an area corresponding to the photometric area set by the area setting means 328 by turning on (or blinking) the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43.

  FIG. 15 is a diagram showing a photometric area in the optical viewfinder shown in FIG.

  FIG. 15 shows a subject image A that is visually recognized through the optical viewfinder 10_4. FIG. 15 also shows a frame B1 that divides an area corresponding to the photometric area set by the area setting unit 328 at a position overlapping the subject image A. As described above, the frame B1 which is the target mark is lit (or blinked) by the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43, so that the photometric area can be immediately confirmed.

  The digital camera 30 of the present embodiment is an area corresponding to a photometric area by turning on (or blinking) the LEDs 10_43R, 10_43G, and 10_43B on the transmissive display board 10_43 arranged in a position overlapping the subject image in the optical finder 10_4. Is a partition. For this reason, the photographer can immediately confirm the photometric area in the optical viewfinder 10_4. Therefore, a user-friendly imaging device is realized.

  FIG. 16 is a flowchart of a display processing routine for displaying a frame defining an area corresponding to the autofocus area in the optical viewfinder in place of the frame defining the area corresponding to the photometry area shown in FIG. is there.

  First, in step S31, it is determined whether or not the shooting mode is set. If it is determined that the shooting mode is not selected, this routine is terminated. On the other hand, if it is determined that the shooting mode is set, the process proceeds to step S32.

  In step S32, an autofocus mode (a mode for setting a focus point in the auto mode) is set.

  Next, in step S33, the shutter button is half-pressed.

  In step S34, the focus point is displayed on the optical viewfinder with transparent LEDs (LEDs 10_43R, 10_43G, and 10_43B).

  Next, in step S35, the shutter button is fully pressed, and this routine is finished.

  In the above-described embodiment, an example of a digital camera has been described. However, the present invention is not limited to this, and the present invention may be a camera or a video camera mounted on a mobile phone.

It is the external appearance perspective view which looked at the digital camera of one Embodiment of the 1st imaging device of this invention from the front diagonally upward. It is the external view which looked at the digital camera shown in FIG. 1 from the top. It is the external view which looked at the digital camera shown in FIG. 1 from the back. It is the external view which looked at the digital camera shown in FIG. 1 from the bottom. It is a figure which shows the internal structure of the digital camera shown in FIG. It is a figure for demonstrating the function of a display control means and an optical finder. It is a figure which shows typically the structure of the transmissive display board shown in FIG. It is a figure which shows the display in an electronic zoom in the optical finder shown in FIG. It is a flowchart of the frame display routine showing the magnification of the electronic zoom displayed in the optical viewfinder. 6 is a flowchart of a control routine executed by the display control means shown in FIG. 4 for lighting a light transmissive LED with brightness according to the field luminance. It is a figure which shows the internal structure of the digital camera of one Embodiment of the 2nd imaging device of this invention. It is a figure which shows the focusing area | region in the optical finder shown in FIG. 12 is a flowchart of a frame display routine for a focus area displayed in the optical viewfinder shown in FIG. 11. It is a figure which shows the internal structure of the digital camera of one Embodiment of the 3rd imaging device of this invention. It is a figure which shows the photometry area | region in the optical finder shown in FIG. FIG. 16 is a flowchart of a display processing routine for displaying a frame defining an area corresponding to an autofocus area in the optical finder instead of a frame defining an area corresponding to a photometric area illustrated in FIG. 15.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 20, 30 Digital camera 10_1 Zoom lens barrel 10_1a Zoom lens 10_1b Iris 10_1c Focus lens 10_2 Flash light emitting unit 10_3 Flash dimming sensor 10_4 Optical viewfinder 10_4a Focusing area 10_5 Grip 10_6 Self-timer lamp 10_8 Shutter button 10_9 Button 10_12 Pop-up button 10_13 Battery cover 10_14 Battery insertion part 10_15 Recording media slot 10_16 Screw hole for tripod 10_24 Exposure compensation button 10_25 Wide-angle zoom button 10_26 Tele zoom button 10_27 Mode switch 10_30 Photo mode button 10_31 Cross button 10_31a Up button 10_31a Down button 10_31a c Left button 10_31d right button 10_32 Menu / OK button 10_33 DISP / BACK button 10_34 LCD monitor 10_41 objective lens 10_41a optical finder objective window 10_42 eyepiece 10_42b optical finder eyepiece window 10_43 transmissive display panel 10_43R, 10_43G, 10_43B LED
10_54 Recording medium 10_100 Operation unit 10_430 Light transmissive substrate 10_431, 10_432, 10_433 LED layer 100 Battery 111, 112, 113 Motor driver 114 CCD
115 Timing generator 116 MPU
116a ROM
117 CDSAMP
118 A / D conversion unit 119 Image input controller 120 Image signal processing unit 121 Compression processing unit 122 Video / LCD encoder 124 AE & AWB detection unit 123 AF detection unit 125 Memory (SDRAM)
126 VRAM
127 Media controller 128 Electronic zoom means 129, 229, 329 Display control means 228, 328 Area setting means

Claims (8)

In a photographing apparatus that forms image data by forming an image of subject light incident via a photographing optical system on an image sensor,
An optical viewfinder in which a transmissive display board in which a light-transmitting light emitter is two-dimensionally mounted is disposed at a position overlapping with a subject image;
Electronic zoom means for generating image data obtained by cutting out an image in a region of an area designated according to an operation at the center of a subject image formed on the image sensor;
An imaging apparatus comprising: a display control unit that divides a region corresponding to a region cut out by the electronic zoom unit by turning on or blinking the light-transmitting light emitter. In a photographing apparatus that forms image data by forming an image of subject light incident via a photographing optical system on an image sensor,
An optical viewfinder in which a transmissive display board in which a light-transmitting light emitter is two-dimensionally mounted is disposed at a position overlapping with a subject image;
An area setting means for setting an in-focus area on the subject;
An imaging apparatus comprising: display control means for partitioning an area corresponding to the in-focus area set by the area setting means by turning on or blinking the light-transmitting light emitter.   The imaging apparatus according to claim 2, wherein the area setting unit sets an in-focus area by a user operation.   3. The photographing apparatus according to claim 2, wherein the area setting means automatically sets a focusing area. In a photographing apparatus that forms image data by forming an image of subject light incident via a photographing optical system on an image sensor,
An optical viewfinder in which a transmissive display board in which a light-transmitting light emitter is two-dimensionally mounted is disposed at a position overlapping with a subject image;
Area setting means for setting a photometric area for performing photometry on the subject;
An imaging apparatus comprising: a display control unit that divides a region corresponding to a photometric region set by the region setting unit by turning on or blinking the light-transmitting light emitter.   6. The photographing apparatus according to claim 5, wherein the area setting means sets a photometric area by a user operation.   6. The photographing apparatus according to claim 5, wherein the area setting means automatically sets a photometric area.   6. The photographing according to claim 1, wherein the display control means turns on or blinks the light-transmitting light-emitting body with a brightness corresponding to a field luminance. apparatus.

Images