JP4412416B2 - Camera with monitor - Google Patents

Description

  The present invention relates to a camera with a monitor, and more particularly to a camera with a monitor suitable for use in an electronic camera equipped with a thin monitor such as a liquid crystal.

  Some electronic cameras such as digital cameras are provided with a display (liquid crystal monitor) such as a liquid crystal on the back of the camera, and can display a preview image before shooting or a shot image on the display. In addition, electronic camera forms have been diversified, and an electronic still camera equipped with a mobile phone function (Patent Document 1) and an electronic camera having an electronic notebook function have been proposed (Patent Document 2). There is also a liquid crystal monitor.

Recently, electronic cameras have been rapidly downsized. On the other hand, liquid crystal monitors are expected to have a larger screen size in order to display powerful and easy-to-view images.
JP 9-37129 A Japanese Patent Laid-Open No. 7-23259

  However, if the camera is equipped with a large-screen LCD monitor and the ratio of the monitor to the size of the camera body increases, the part that can be gripped during the shooting (grip part) will be smaller, and the photographer will be able to hold the camera. There is a drawback that it is difficult to hold. Another problem is that the screen of the liquid crystal monitor is covered with a hand holding the camera, and a part of the image cannot be seen.

  The present invention has been made in view of such circumstances. While reproducing, it is possible to reproduce a powerful image on a large screen monitor, while in shooting, the image is not hidden by the hand holding the camera, and the entire image is confirmed. An object of the present invention is to provide a camera with a monitor that can be used.

In order to achieve the above object, the invention according to claim 1 includes a monitor that can be switched between a photographing mode and a playback mode, and has a monitor formed on the rear surface of the camera body as large as possible, and an upper surface of the camera body. Having a shutter button, and a camera with a monitor that shoots by holding the side of the camera body with one hand so that the shutter button can be pressed with an index finger. The display-equipped camera includes a display control unit that performs display control for changing the content displayed on the monitor, and the display control unit is configured to hold a hand when the shooting mode is selected. by by displaying inevitably reduced screens to avoid part of the screen of the monitor covered, while holding the camera body at the time of photographing, an image of Thereby be able to see the body, wherein when the reproduction mode is selected, the state of displaying the reproduced image at larger screen size than the shooting mode with substantially the entire screen of the monitor, the reduced It is characterized in that the screen display state can be switched at any time and displayed.

According to the present invention, when the reproduction mode is set by the mode switching means, the image data read from the storage medium is reproduced, and the reproduced image is displayed in a large size using substantially the entire screen of the monitor. On the other hand, when the shooting mode is set, the image acquired by the image pickup means is displayed on the monitor. The image is not displayed on the portion of the monitor screen that is assumed to be covered by the hand, and the image is reduced and displayed on the portion that is unlikely to be covered with the hand. Thereby, it is possible to grasp the entire composition to be photographed.

 Further, in addition to the configuration of the camera with a monitor according to the present invention, a touch panel is provided on the monitor screen, and the operation button is displayed on a portion of the monitor screen where no image is displayed in the shooting mode. It is preferable to add the function of the camera operation unit to the above. According to this aspect, the part which does not display the image on the monitor screen by the touch panel function can be used as the operation unit (input unit).

  The camera with a monitor according to the present invention includes a large screen monitor, displays an image in a reduced size only in a portion that is not intended to be covered by the photographer's hand in the shooting mode, and substantially the entire screen of the monitor in the playback mode. Since a large image is displayed using, it is possible to enjoy a powerful reproduced image and to easily check the image at the time of shooting.

  In particular, the monitor screen is used as an operation unit (input unit) by providing a touch panel on the monitor screen and displaying operation buttons such as exposure correction and zoom operation on a portion where no image is displayed in the shooting mode. be able to.

  Hereinafter, preferred embodiments of a camera with a monitor will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a front external view of an electronic camera to which the present invention is applied, and FIG. 2 is a rear external view thereof. As shown in these drawings, an imaging unit 12 is provided in the upper left corner of the front of the electronic camera 10, and a CCD (imaging device) (not shown) is disposed behind the photographing lens 14. Although the detailed configuration of the photographic lens 14 is not shown, for example, a rear focus type zoom lens including a zooming group and a correction group is used.

  The left portion of the main body 16 including the imaging unit 12 is formed with a grip portion 18 so that a photographer can easily hold the camera with the right hand. The shutter button 20 and the frame advance / return button 22 are provided on the upper surface of the main body 16. Is placed. A strobe (auxiliary light emitting unit) indicated by reference numeral 23 is provided at the upper right corner of the front surface of the main body 16. A power switch 24 for switching on / off of the main power source and a mode switch 26 for switching the function (mode) of the camera are disposed on the side surface of the grip portion 18 (see FIG. 2). The power switch 24 is slidable in the vertical direction of FIG. 2 and is urged upward by urging means (not shown). That is, when the finger is released from the power switch 24, the power switch 24 returns to the original position (upper position) by the biasing force of the biasing means, and the power switch 24 is moved downward in FIG. The power is turned on (ON) and disconnected (OFF) by sliding operation.

  On the other hand, the mode switch 26 is also slidable in the vertical direction in FIG. 2. When the mode switch 26 is stopped at the upper locking position A, the photographing mode is set, and when the mode switch 26 is stopped at the lower locking position B, playback is performed. Set to mode. As shown in FIG. 2, an image display unit (monitor) 30 is provided on the back surface of the electronic camera 10. The monitor 30 is composed of a liquid crystal display (LCD), for example, and has a large screen as much as possible with respect to the size of the camera body 16. In particular, a large screen LCD is employed so that the screen of the monitor 30 occupies the back side of the grip portion 18. A touch panel 32 having light permeability is disposed on the front surface of the monitor 30.

  FIG. 3 is a block diagram showing the overall configuration of the electronic camera 10. The electronic camera 10 mainly includes an imaging unit 12, a signal processing unit 34, a recording unit (built-in memory or removable external memory) 36, an output memory 38, a D / A converter 40, a display unit (monitor) 30, and a touch panel. 32, a central processing unit (CPU) 42, and the like. The subject image formed on the light receiving surface of the CCD via the photographing lens 14 of the imaging unit 12 is photoelectrically converted in the CCD and sequentially read out as an image signal. Although a detailed configuration of the signal processing unit 34 is not illustrated, the signal processing unit 34 is, as is well known, an analog processing circuit such as a CDS clamp circuit or a gain adjustment circuit, an A / D converter, and a luminance signal generation circuit. , A color difference signal generation circuit, and a digital image processing circuit such as a gamma correction path.

  The image signal read from the imaging unit 12 and the image signal read from the recording unit 36 are processed by the signal processing unit 34 and then output to the output memory 38. Then, the image signal is guided to the monitor 30 via the D / A converter 40, and an image is displayed on the screen of the monitor 30. The monitor 30 displays not only a still image taken by the release operation but also a video (preview video or intermittent image) before the release operation.

  The electronic camera 10 has a known automatic exposure adjustment (AE) function and autofocus (AF) function, and an optimum exposure can be achieved simply by the photographer pointing the imaging unit 12 of the electronic camera 10 toward the subject. Adjustment and focusing are performed automatically. Then, when the shutter button 20 is pressed with the shooting mode set, a shooting start signal is issued in accordance with this operation, and shooting is executed. In other words, the image signal read from the imaging unit 12 in response to the reception of the imaging start signal is appropriately processed by the signal processing unit 34, for example, an Exif (Exchangeable image file format) file specification or other predetermined format. Accordingly, the data is recorded in the recording unit 36 such as a built-in memory (for example, a flash memory built in the camera) or a removable external memory card. Note that the shooting start signal may be applied from the outside of the camera.

  The CPU 42 controls and controls each circuit of the camera. The CPU 42 performs display control for changing the content displayed on the monitor 30 in accordance with a signal received from an operation unit such as the mode switch 26 and the like, and an input signal from the touch panel 32. The touched position (touched position) of the touch panel 32 is determined based on the above, and the imaging unit 12 is controlled to perform imaging such as zooming and focusing, and image data writing / reading control with respect to the recording unit 36 is performed.

  Next, the monitor display function of the electronic camera configured as described above will be described. FIG. 4 shows a display example of the monitor 30 in the shooting mode. When the shooting mode is selected by the mode switch 26, a preview image is displayed in an area on the left side of the screen in FIG. 4 so as to avoid a portion of the screen of the monitor 30 that is covered with the hand (right hand) 46 that holds the grip portion 18. Zoom out and display.

  When a subject is photographed with the electronic camera 10, normally, the grip portion 18 of the electronic camera 10 is held with the right hand 46 and the photographing lens 14 is directed toward the subject, as shown in FIG. A part of the screen of the monitor 30 (the rightmost part in FIG. 4) is covered with the photographer's hand 46. Therefore, even if an image is displayed on the covered part, the photographer himself cannot see the image of the part and cannot grasp the entire composition to be photographed. Further, if the position of the hand 46 is changed in order to look at the entire screen, the holding of the camera becomes unstable. Therefore, in the present electronic camera 10, the image is reduced and displayed in a small screen size in an area on the left side of the screen while avoiding the portion covered with the hand. As a result, the entire image can be confirmed while holding the camera in a stable state at the time of shooting.

  The size of the image display area in the shooting mode may be determined in advance assuming a normal camera gripping state, or an area touched on the monitor 30 by the touch panel 32 is detected, You may change into an appropriate magnitude | size so that the area | region may be avoided. Further, as shown in FIG. 5, a zoom operation button 50 and an exposure are provided in an area 48 in which no image is displayed on the monitor 30 screen (that is, an L-shaped area between the right edge and the lower edge of the monitor screen) 48. Operation buttons such as a correction (brightness correction) button 52 are displayed, and a desired camera operation can be performed by touching the operation buttons (reference numerals 50 and 52) on the screen via the touch panel 32.

  As the operation buttons displayed on the screen of the monitor 30, various buttons such as a strobe ON / OFF button and a color / monochrome display switching button can be considered in addition to the above. In addition, for a portion that cannot be displayed at once, various input operations can be performed by adopting a method such as page switching or item selection from a menu screen. As described above, when the composition is determined while viewing the image displayed on the monitor 30 and the shutter button 20 is pressed, the image on the monitor 30 freezes, and the image signal read from the CCD when the shutter button 20 is pressed is displayed. The data is recorded in the recording unit 36 through a predetermined process. Then, after the recording process is completed, the freeze is canceled and the display returns to the moving image or intermittent image display.

  Next, the playback mode will be described. FIG. 6 shows the state of the monitor 30 in the playback mode. When the playback mode is selected by the mode switch 26, the playback image is displayed with a screen size larger than that in the shooting mode using substantially the entire screen of the monitor 30. Note that a part of the screen of the monitor 30 (for example, the left and right edges and the lower edge) may be used for an input operation unit using the touch panel 32. Display the playback image in the screen area (substantially full screen).

  In the reproduction mode, the image data recorded in the recording unit 36 is read and the image is reproduced on the monitor 30, or an external device such as a personal computer (personal computer) (not shown) is used for communication functions and input / output terminals ( In this mode, the image is reproduced on the monitor 30 on the basis of image data received via (not shown). When the reproduced image is displayed on the monitor 30, the camera is often held by placing the electronic camera 10 on the palm as shown in FIG. 6, and it is not necessary to point the imaging unit 12 at the subject, so the monitor 30. It is possible to hold the camera so that the screen is not covered with a hand. Therefore, in the playback mode, as shown in FIG. 6, the playback image is displayed large on almost the entire screen of the monitor 30 to provide a more powerful image. Note that by operating the frame advance / frame return button 22 during reproduction, an image (reproduced image) read from the recording unit 36 or a storage medium of an external device can be changed.

  Further, in addition to the configuration of the electronic camera 10 described above, a screen changeover switch (not shown) is provided on the screen of the camera body 16 or the monitor 30, and the screen size is reduced as described with reference to FIG. Further, it may be configured to be able to return to the large screen display as shown in FIG. 6 from the reduced screen. In this case, when the reproduced image is reduced, an operation button such as a color correction button, a reproduction zoom operation button, or a sepia tone display button is displayed in an area where the image is not displayed (an area indicated by reference numeral 48 in FIG. 5). Thus, it is preferable to enable operations such as color correction, image enlargement / reduction, and change to sepia tone during reproduction.

  In the above embodiment, an example of switching between the large screen display (FIG. 6) and the small screen display (FIG. 4) according to the selection of the mode switch 26 has been described, but the hand holding the grip unit 18 is the screen of the monitor 30. If the touch panel 32 detects that the touch screen is touched, the screen size may be automatically switched to a small screen. Another possible mode is to maintain the large screen display even in the shooting mode when it is detected that the camera is fixed to a tripod or the like.

  In the above embodiment, an example has been described in which an image is displayed on the left side of the screen at the time of shooting in consideration of the case where the camera is held with the right hand (FIGS. 4 and 5). Therefore, when it is detected by the touch panel 32 that the photographer holds the electronic camera 10 with the left hand, the image may be reduced and displayed in a region on the right side of the screen so as to avoid a portion covered with the left hand. Good.

  In the above embodiment, the electronic camera using the memory for electronically recording the image data has been described as an example of the means for recording the captured image (image recording means). It can also be applied to a silver halide camera with a monitor using a silver halide film.

Front view of an electronic camera to which the present invention is applied External view showing the electronic camera shown in FIG. 1 as seen from the back side 1 is a block diagram showing an overall configuration of an electronic camera according to an embodiment of the present invention. Explanatory drawing showing how the electronic camera is used in shooting mode The figure which shows an example of the display form of the monitor 30 at the time of imaging | photography mode Explanatory drawing showing how the electronic camera is used in the playback mode

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Electronic camera, 12 ... Imaging part, 16 ... Main body, 18 ... Grip part, 24 ... Power switch, 26 ... Mode switch, 30 ... Monitor, 32 ... Touch panel, 36 ... Recording part, 42 ... Central processing unit (CPU) ), 50 ... Zoom operation button, 52 ... Exposure compensation button

Claims (1)

Switchable between shooting mode and playback mode, has a monitor formed on the back of the camera body with as large a screen as possible, has a shutter button on the top surface of the camera body, and can be pressed with an index finger In the camera with a monitor that shoots by holding the side of the camera body with one hand, and a part of the monitor screen is covered with the thumb of the gripped hand at the time of shooting,
Display control means for performing display control for changing the content displayed on the monitor, and the display control means is configured to display a screen of the monitor that is inevitably covered by a gripping hand when the shooting mode is selected. By displaying a reduced screen while avoiding a part, it is possible to check the entire image while holding the camera body at the time of shooting, and when the playback mode is selected, the screen of the monitor is displayed. A camera with a monitor, which can switch between a state in which a playback image is displayed with a screen size larger than that in the shooting mode and a state in which the reduced screen is displayed at any time.

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