KR100209905B1 - Video camera with still camera - Google Patents

Abstract

The disclosed invention solves the problem that the angle of view of the still camera can not be confirmed on the liquid crystal panel when the image is captured by the video camera. The zoom lens 21a of the electronic viewfinder section 21 displays the zoom factor of the zoom lens 22 for the video when the video image pickup is performed, And when the still photographing is performed, the zooming magnification of the still zoom lens 11 is controlled to be a zoom magnification. The zoom lens 21a of the electronic viewfinder section 21 is set to the zoom magnification of the wide angle side of the video zoom lens 22 or the zoom zoom lens 11 for a still image. An image on the wide angle side is displayed on the liquid crystal panel 12 and an image on the telephoto side is displayed as a sub screen.

Description

Still camera integrated video camera

In particular, the present invention relates to a video camera integrated with a still camera, and particularly to a video camera unit for recording a moving image on a magnetic tape and a still camera for recording still images on a photographic film, The present invention relates to a still camera integrated video camera configured to facilitate shooting.

Conventionally, a video camera that magnetically records a moving image on a magnetic tape and a still camera that exposes a still image on a photographic film have been developed as independent products, respectively. However, when the same subject is imaged by a video camera and also imaged by a still camera, it is troublesome to carry both the video camera and the still camera, and in the case of using a still camera, the imaging by the video camera is not interrupted I had to.

Therefore, a still camera integrated video camera in which a video camera and a still camera are integrated is still being developed. Such a still camera integrated video camera is disclosed in Japanese Patent Application Laid-Open No. 63-261330.

According to this publication, a still camera is provided on the left side of the housing, and a video camera is provided on the right side of the housing. An objective lens for a still camera and an objective lens for a video camera are disposed on the front surface of the housing, and an objective lens for an optical viewfinder is disposed in the front center of the housing.

In this way, since the optical viewfinder is provided at the front center of the housing, the parallax of the image captured by the still camera with respect to the subject viewed from the optical viewfinder is small and the parallax between the optical viewfinder and the image captured by the video camera The time difference) is small, so that one optical viewfinder can serve as a finder of a video camera and a still camera. As a result, it is possible to take a picture by a video camera while looking at an optical viewfinder, and furthermore, to shoot a still camera at a shutter chance.

However, in the above publication, the parallax of the video camera and the still camera for the optical viewfinder is made small, but the parallax itself can not be eliminated.

In order to solve such a problem, a still camera-integrated video camera configured to display an image picked up by a video camera on a liquid crystal display (LCD) separately from the optical viewfinder and use the liquid crystal display as an electronic viewfinder Is being developed. In this configuration, imaging is performed by the video camera while viewing the electronic viewfinder, and photography can be performed by the still camera at the time of the shutter chance, so that parallax as described above does not occur.

In the still camera-integrated video camera as described above, the zoom lens is used as an objective lens of a still camera and a video camera, so that shooting and imaging can be performed while changing the angle of view from the wide angle to the telephoto. For example, a subject at a distance can be largely photographed, or a subject not included in the angle of view in a standard lens can be photographed and photographed without changing the position of the camera.

However, when the zoom ratio of the still camera and the zoom ratio of the video camera are set differently, only the image picked up by the zoom lens of the video camera is displayed on the electronic viewfinder, so that the angle of view of the still camera can not be confirmed by the electronic viewfinder .

As a result, even though an image of a subject photographed by a video camera is displayed on the electronic viewfinder, if there is a difference in zoom magnification, there is a problem that the photographing is performed without knowing the angle of view photographed by the still camera.

Japanese Patent Laid-Open Publication No. 3-259130 discloses that an electronic viewfinder is mounted on a still camera. In this publication, a single focal length lens is used for a finder lens of an electronic viewfinder, while a lens of a still camera is a zoom lens, and as an image pickup element for converting an image received by the finder lens into an electric signal, (Image sensor) is used.

In this configuration, although a video camera is not attached, in order to obtain an image signal representing a subject having the same angle of view as that of a subject received by the zoom lens for steel according to the focal distance, the focal distance of the zoom lens for a still camera of the still camera is detected , And determines the used pixel area of the imaging element. Then, the subject is displayed on the liquid crystal panel as an electronic viewfinder based on the image signal from the used pixel region.

However, in the configuration of this publication, the angle of view is limited to the area above the image pickup device. Therefore, when this structure is directly applied to a still camera integrated video camera, It was not displayed in the electronic viewfinder outside. As a result, when shooting with a still camera while taking a picture by a video camera, the photographer had to shoot in a state in which the angle of view of the zoom lens for a still photograph was unknown.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a still camera integrated video camera in which an angle of view of a still camera can be confirmed by an electronic viewfinder when a video camera is picking up the video camera.

1 is a perspective view showing an appearance of an embodiment of a still camera integrated video camera according to the present invention,

2 is a block diagram of a still camera integrated video camera to which the present invention is applied;

3 is a view of a screen displayed on the liquid crystal panel when the zoom magnification is operated on the telephoto side,

4 is a view of a screen displayed on the liquid crystal panel when the zoom magnification is operated on the wide angle side,

5 is a view showing a screen of a liquid crystal panel displayed when still photography is performed during video imaging and a parent-child screen when the zoom magnification of the video camera unit is set to a wider angle side than the still camera;

6 is a flow chart for explaining a process executed by the control circuit.

DESCRIPTION OF THE REFERENCE NUMERALS

10: Video camera body 11: Video zoom lens

12: liquid crystal panel 13: imaging switch for video camera

14: Power switch for video camera 15: Zoom switch for video camera

17: Shutter hole for still camera 18: Power switch for still camera

19: Zoom switch for still camera 20: Still camera body

21: Electronic viewfinder section 21a: Zoom lens for viewfinder

22: zoom lens for steel 32: still camera part

34: a video camera unit 36: a shutter

43: Still camera zoom control circuit 44: Control circuit

61: a video camera signal processing circuit 62: a video signal processing circuit

65: magnetic head 68: video camera zoom control circuit

71: Viewfinder signal processing circuit 72: Zoom driver

74: zoom lens control circuit for viewfinder 77: selection circuit

78: Character insertion circuit 79: Self-image processing circuit

The present invention has the following features in order to solve the above problems.

A still camera zoom unit for zooming the still zoom lens for zooming; a still zooming operation unit for zooming the still zoom lens; and a still camera for zooming the image signal of the moving image picked up by the zoom zoom lens, A video zoom unit for changing the zoom magnification of the video zoom lens; an electronic viewfinder unit for converting the optical signal received by the finder lens into an image signal; A still camera integrated video camera having a liquid crystal panel for displaying an image received by the video camera,

A zoom lens provided as a finder lens of the electronic viewfinder portion and having a focal distance similar to that of the zoom lens for a still image and the zoom lens for a video, an optical signal photographed by the zoom lens for the viewfinder, And a zoom magnification adjusting means for adjusting the zoom magnification of the zoom lens for the viewfinder to the zoom magnification operated by the steady zoom operating means or the video zoom operating means, And,

An image corresponding to the angle of view taken at the zoom magnification of the zoom lens for steel or the zoom lens for video is displayed on the liquid crystal panel.

Therefore, the zoom magnification of the zoom lens for the viewfinder can be adjusted to the zoom magnification operated by the zoom operation means for still or the video zoom operation means, and an image received by the electronic viewfinder portion can be displayed. In addition, the parallax error can be eliminated, and the image displayed on the liquid crystal panel can be photographed by the still camera section.

The zoom magnification adjusting means adjusts the zoom magnification of the zoom lens for the viewfinder to the zoom magnification on the wide angle side among the view angles received by the still lens or the video zoom lens. Therefore, all the images accepted by the zoom lens for steel or the zoom lens for video can be displayed.

The camera described above processes the signal output from the viewfinder signal processing circuit into an image at a zoom angle of the telephoto side from a view angle received by the zoom lens for zoom or zoom for video, and displays the image on the liquid crystal panel It is possible to display an image of a view angle of the zoom magnification factor of the telephoto side in a subscreen on the liquid crystal panel from the angle of view received by the zoom lens for zoom or zoom by the video camera including the image processing circuit, The angle of view of the zoom lens for steel and the zoom lens for video can be confirmed at the same time. As a result, even when the video camera unit picks up the image, the chance of the shutter of the still camera unit is not missed.

Further, the added insertion circuit inserts a character or a figure into the image signal outputted from the viewfinder signal processing circuit. Therefore, in the case of photographing with the still camera section while the image is being captured by the video camera section, the image of the video camera section and the image of the still camera section can be identified even if both images are simultaneously displayed on the liquid crystal panel.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view showing an appearance of a still camera integrated video camera according to the present invention.

Reference numeral 10 denotes a main body of a video camera. A video zoom lens 11 of a video camera is provided on the left front side of the video camera. A liquid crystal panel (LCD display) 12 as an electronic viewfinder is provided on the back thereof. In this liquid crystal panel 12, any one of a parent screen for displaying an image on the entire screen in accordance with each operation mode and a parent screen in which a child screen smaller than the parent screen is inserted into the parent screen is selectively Is displayed. A video camera switch 13 for a video camera, a power switch for a video camera 14 and a zoom switch 15 for operating the video zoom lens 11 to the wide angle side or the telephoto side are provided on the upper side of the video camera body 10, And various operation tools 16 for operating various functions (recording / playback, stop, fast transfer, rewinding, and the like) of the video camera are disposed.

Inside the video camera main body 10, a video AF mechanism (not shown) for measuring a distance to a subject photographed by the zoom lens 11 for a video camera is incorporated. Further, this AF mechanism obtains distance data as a result of focusing, but this is a well-known AF mechanism for a video camera, and its detailed configuration is omitted here.

A still camera main body 20 is provided on the front right side of the video camera main body 10 and an electronic viewfinder portion 21 is provided. The electronic viewfinder section 21 is provided with a finder zoom lens 21a. The finder zoom lens 21a has a zoom magnification similar to that of the video zoom lens 11 and the zoom zoom lens 22 for a wide angle side of the video zoom lens 11 or the zoom zoom lens 22 Is equal to the zoom magnification of the zoom lens.

As a result, the electronic viewfinder section 21 can cover the entire zoom range that the video zoom lens 11 and the zoom zoom lens 22 can receive. Further, since the image picked up by the finder zoom lens 21a is displayed on the liquid crystal panel 12, the subject can be seen with a clearer image quality than the so-called electronic zoom image.

The still camera body 10 is provided with a zoom lens 22 for zooming, a light emitting element outside the range (distance measurement) 23, a non-positional receiving element 24, a stroboscope 25, and the like. A zoom switch 19 for operating the still camera shutter 17, the still camera power switch 18 and the zoom zoom lens 22 for the wide angle side or the telephoto side is provided below the video zoom lens 11, A still camera operating section such as a camera is disposed.

The out-of-housing light emitting element 23 and the out-of-range out-of-space light receiving element 24 constitute a distance measuring device 26. Based on the measured distance data measured by the distance measuring device 26, The mechanism (auto focus mechanism) moves the zoom lens 22 in the focus direction.

Such an AF mechanism for a still camera is generally used in a compact camera or the like and has a positional deviation when infrared light is emitted from the out-of-sample light emitting element 23 and then reflected by the subject and received by the out- And the distance to the subject is determined according to the principle of triangulation.

The still camera body 20 is provided on a lid 27 rotatably mounted on the front surface of the still camera body 20. [ The inside of the still camera main body 20 is exposed by rotating the lid 27 so that the film can be mounted on a film mounting part (not shown) provided inside the still camera main body 20. In addition, The magnetic tape cassette can be mounted on the cassette mounting portion (not shown) of the magnetic tape cassette 10.

2 is a block diagram showing a configuration of a still camera integrated video camera of the present invention.

The still camera integrated video camera of this embodiment includes a still camera section 32 for photographing a still image of a subject by a zoom lens 22 for recording and recording the still image of the subject on a film 31, And a video camera section 34 for picking up the video tape 33 and recording it on the magnetic tape 33 are integrally provided.

First, the configuration of the still camera section 32 will be described, and then the configuration of the video camera section 34 will be described.

In the still camera section 32, light from the subject is incident on the shutter 36 via the zoom lens 22 and the diaphragm 35. When the photographing is performed, the shutter 36 is released according to the operation of the shutter opening 17. [ Therefore, the image of the subject is formed on the film 31 by releasing the shutter 36, so that the image of the subject is recorded (photographed) on the film 31.

The zoom zoom lens 22 for steel has a zoom drive unit 41 and a focus drive unit 42. The zoom magnification is controlled by the zoom drive unit 41 and the focus drive unit 42 performs focus control on the subject.

The zoom driving unit 41 has a motor (not shown) that drives the zoom lens 22 to the wide angle side or the telephoto side and is driven and controlled by a driving signal from the still camera zoom control circuit 43. Therefore, the zoom driving unit 41 is driven in accordance with the driving signal outputted from the still camera zoom control circuit 43 to control the zoom magnification of the zoom zoom lens 22 and detects the zoom magnification of the zoom zoom lens 22 .

The control circuit 44 is connected to the zoom switch 19 as a zoom operation section for the steel. When the zoom magnification is set by the operation of the zoom switch 19, And supplies it to the still camera zoom control circuit 43.

The focus driving unit 42 drives the still zoom lens 22 according to the focus control signal supplied from the control circuit 44 to perform focus control. The zoom zoom lens 22 for steel is provided with a diaphragm driver 57 and a shutter driver 58.

The diaphragm drive unit 57 drives the diaphragm 35 in accordance with the diaphragm control signal supplied from the control circuit 44 to control the amount of light incident on the film 31. [ The shutter drive unit 58 controls the release of the shutter 36 in accordance with the shutter control signal supplied from the control circuit 44.

The control circuit 44 is connected to a measuring section 56 for measuring the brightness of the subject and the distance to the subject. The brightness information of the subject and the distance information to the subject are supplied from the measuring section 56. The control circuit 44 generates a diaphragm control signal and a shutter control signal so as to optimize the amount of light from the subject incident on the film 31 in accordance with the brightness information of the subject supplied from the measuring section 56. The diaphragm driving section 57 And the shutter drive unit 58, thereby controlling the amount of exposure to the film 31 and the exposure time.

The control circuit 44 generates a focus control signal so that the image of the subject is focused on the film 31 in accordance with the distance information from the measuring unit 56 to the subject and supplies the focus control signal to the focus driving unit 42, Called zoom control, which controls the position of the lens by driving the zoom lens 22 for zooming.

Next, the configuration of the video camera unit 34 will be described.

The video camera unit 34 supplies the image of the subject via the video zoom lens 11 and the diaphragm 60 to a video camera signal processing circuit 61 composed of a CCD (Charge Coupled Device) image sensor or the like, Conversion. Furthermore, the image signal (video camera signal) generated by the video camera signal processing circuit 61 is supplied to the video signal processing circuit 62.

The audio signal around the subject acquired by the microphone 63 is supplied to the audio signal processing circuit 75. [ The video signal outputted from the video signal processing circuit 62 is superimposed on the audio signal outputted from the audio signal processing circuit 75 and is supplied to the magnetic tape 65 by the magnetic head 65 attached to the rotary drum 64 For example, 8 mm video system or VHS system.

The zoom zoom lens 11 for video is provided with a zoom driving unit 66 for moving a lens capable of controlling the zoom magnification of the subject and a focus driving unit 67 for moving a lens capable of controlling the focus of the subject. The zoom driving unit 66 is connected to the video camera zoom control circuit 68 and moves the lens according to the zoom driving signal supplied from the video camera zoom control circuit 68.

The video camera zoom control circuit 68 detects the zoom magnification of the video zoom lens 11 and generates a zoom driving signal in accordance with the zoom information (zoom magnification) supplied from the control circuit 44, ). The focus driving unit 67 moves the lens of the zoom zoom lens 11 according to the focus control signal (AF signal) supplied from the control circuit 44 to perform focus control.

The control circuit 44 generates zoom information according to the zoom magnification set by the operation of the zoom switch 15 by a zoom control function to be described later and supplies the zoom information to the video camera zoom control circuit 68. [

The diaphragm drive unit 69 for driving the diaphragm 60 controls the amount by which the diaphragm 60 is idled in accordance with the diaphragm control signal (AE signal) supplied from the control circuit 44, . In addition, the control circuit 44 generates a diaphragm control signal in accordance with the brightness information of the subject supplied from the measuring section 56, supplies the diaphragm control signal to the diaphragm driving section 69, So-called exposure control for controlling the amount of light supplied to the CCD image sensor for conversion into a signal is performed.

The control circuit 44 includes an image pickup switch 13, a video camera power switch 14, a video camera zoom switch 15, a shutter 17, a still camera power switch 18, a still camera zoom switch (19) and various manipulation tools (16) are connected. Therefore, the control circuit 44 controls the operations of the video camera unit 34 and the still camera unit 32 in accordance with the operation of each switch, in addition to the zoom control processing described later.

Here, most of the image pickup devices used in the video camera unit 34 are CCD image sensors, and their sizes are currently 1/3 inch and 1/4 inch. The film 31 used in the still camera section 32 is 35 mm in diameter. This determines the size of the lens.

In other words, the lens diameter of the video camera unit 34 can be made smaller than that of the still camera unit 32, and the video camera lens can be made smaller if a lens having the same zoom magnification is used. For example, when the zoom lens mounted on the still camera portion 32 is set to a double zoom of 35 to 70 mm, a zoom lens having a zoom magnification of 3 to 35 mm, which is 35 to 105 mm, can be mounted on the video camera portion 34.

As a result, when the 35 mm to 70 mm zoom lens is mounted on the still camera section 32 and the 35 mm to 105 mm zoom lens is mounted on the video camera section 34, the angle of view of the still camera section 32 and the angle of view of the video camera section 34 ) Can be coincident with each other. Therefore, in the still camera section 32 and the video camera section 34, an area (35 to 70 mm) capable of matching the zoom magnification and an area (70 to 105 mm) having a different zoom magnification are generated.

The control circuit 44 also controls the zoom ratio of the still camera section 32 detected by the still camera zoom control circuit 43 and the zoom ratio of the video camera zoom control circuit 68, Side image on the liquid crystal panel 12 and also displays the image on the telephoto side on the liquid crystal panel 12 as a sub-screen by comparing the zoom ratio of the zoom magnification of the video camera unit 34 detected by the zoom- A zoom magnification display program for displaying the zoom magnification of the still camera section 32 and the zoom magnification of the video camera section 34 on the liquid crystal panel 12 is inputted.

The video signal processing circuit 62 demodulates the reproduced image signal and audio signal read from the magnetic tape 33 by the magnetic head 65 in the reproducing mode and outputs the reproduced image signal and audio signal read from the external device . At this time, a reproduced image signal is supplied to the liquid crystal panel 12 from the video signal processing circuit 62, and a reproduced image reproduced by the magnetic head 65 is displayed.

Next, the configuration of the electronic viewfinder section 21 will be described.

The electronic viewfinder section 21 supplies an image of the subject to a viewfinder signal processing circuit 71 composed of a CCD (Charge Coupled Device) image sensor or the like via a finder zoom lens 21a and a diaphragm 70, . In addition, the zoom lens 21a for the viewfinder is provided with a zoom driving unit 72 for moving a lens capable of controlling the zoom magnification of the subject and a focus driving unit 73 for moving a lens capable of controlling the focus of the subject . The zoom driving unit 72 is connected to the zoom lens control circuit 74 for the viewfinder and moves the lens in accordance with the zoom driving signal supplied from the zoom lens control circuit 74 for the viewfinder.

The zoom lens control circuit 74 for the viewfinder detects the zoom magnification of the zoom lens 21a for the viewfinder and generates a zoom driving signal in accordance with zoom information (zoom magnification) supplied from the control circuit 44, 72. The focus driving unit 73 moves the lens of the zoom lens 21a for the viewfinder in accordance with the focus control signal (AF signal) supplied from the control circuit 44 to perform focus control.

The control circuit 44 generates zoom information on the wide angle side according to the zoom magnification set by the operation of the zoom switch 15 or 19 by a zoom control function which will be described later and outputs this zoom information to the zoom lens control circuit 74 . Accordingly, the zoom lens control circuit 74 for the viewfinder adjusts the zoom magnification of the zoom lens 21a for the viewfinder to the zoom magnification on the wide angle side among the view angles received by the zoom lens 22 for zoom or the video zoom lens 11. As a result, all the images received by the zoom lens 22 for zoom or the zoom lens 11 for video can be displayed on the liquid crystal panel 12.

The diaphragm driver 76 for driving the diaphragm 70 controls the amount by which the diaphragm 60 is opened in accordance with the diaphragm control signal (AE signal) supplied from the control circuit 44 and outputs the amount of incident light to the CCD image sensor . Further, the control circuit 44 generates an iris control signal in accordance with the brightness information of the subject supplied from the measuring section 56, supplies the iris control signal to the iris driving section 69, So-called " exposure control "

The image signal converted by the viewfinder signal processing circuit 71 is supplied to the character insertion circuit 78 via the selection circuit 77. [ The character inserting circuit 78 creates an inserted character or picture according to the information from the control circuit 44 and inserts the inserted character or picture into the screen of the liquid crystal panel 12 for display. As a result, even if the image received by the zoom lens 11 for video and the image received by the zoom lens 22 for zoom are simultaneously displayed on the liquid crystal panel 12, A character or a picture indicating that it is a still screen or a video screen can be displayed. Therefore, even when two images are displayed on the screen of the liquid crystal panel 12, that is, when the still camera section 32 picks up images while the video camera section 34 picks up the images, both images are simultaneously displayed on the liquid crystal panel 12 It is possible to easily identify the image of the video camera unit 34 and the image of the still camera unit 32 even when displayed on the screen.

Furthermore, in the present embodiment, the character insertion circuit 78 can display the zoom magnification of the zoom lenses 11 and 22 and the angle of view of the still camera on a part of the screen of the liquid crystal panel 12. In addition to the zoom magnification, the character inserting circuit 78 can insert information, such as date, time, VTR mode such as PLAY, REC, etc., into the liquid crystal panel 12.

Reference numeral 79 denotes a sub-screen processing circuit for creating an image of the zoom magnification on the wide angle side among the zoom magnifications of the zoom lens 22 for zoom or the video zoom lens 11. That is, the sub-screen processing circuit 79 outputs the image signal picked up by the electronic viewfinder section 21 to the view angle corresponding to the zoom magnification of the zoom zoom lens 22 for zoom and the angle of view corresponding to the zoom zoom lens 11 To be an image of the angle of view corresponding to the zoom magnification manipulated to the wide angle side among the zoom lens 11 for videos or the zoom lens 22 for steels to eliminate the parallax caused by the separation distance of the liquid crystal Thereby creating a sub screen to be inserted into the panel 12. [

Therefore, in the case of photographing with the still camera section 32 operated by the zoom lens 22 for the telephoto side when the video zoom lens 11 is operated to the wide angle side and the video camera section 34 picks up the image, An image picked up by the video camera section 34 is displayed on the screen of the zoom lens 12 and a sub screen of the same image as the still image picked up by the zoom lens 22 for still is displayed. As a result, a screen having no parallax is displayed on the sub screen, and the angle of view captured by the video camera unit 34 and the angle of view captured by the still camera unit 32 can be simultaneously checked while viewing the liquid crystal panel 12.

The image on the wide angle side is displayed on the liquid crystal panel 12 and the angle of view on the telephoto side is displayed on the liquid crystal panel 12 as a subscreen so that the margin portion missing due to the zooming of the zoom lenses 11 and 22 is displayed no need.

The signals generated by the viewfinder signal processing circuit 71 and the sub-screen processing circuit 79 are supplied to the selection circuit 77 and selected by a command from the control circuit 44, respectively. The signal selected by the selection circuit 77 is supplied to the liquid crystal panel 12 through the character inserting circuit 78 and displayed as an image on the screen of the liquid crystal panel 12. [

Figs. 3 to 5 are diagrams of screens displayed on the liquid crystal panel 12. Fig. Fig. 3 is a view showing a screen B on which the zoom lens is operated to the telephoto side on the liquid crystal panel 12, Fig. 4 is a screen on which the zoom lens is manipulated to the wide angle side on the liquid crystal panel 12, 5 shows a parent-child screen in which a sub-screen of a screen on which a zoom factor is manipulated to the telephoto side is inserted into a parent screen set on the wide-angle side.

For example, when the power switch 14 and the image pickup switch 13 of the video camera unit 34 are turned on, the selection circuit 77 selects the viewfinder signal processing And selects the signal (b) from the circuit (71). As a result, an image identical to the image captured by the video camera section 34 is displayed on the liquid crystal panel 12.

However, when the power switch 18 of the still camera section 32 is turned on during the video imaging, the selection circuit 77 selects the viewfinder signal processing circuit 71 (see Fig. 7) by the control signal d from the control circuit 44 ), The signal (b, a) from the sub-screen processing circuit 79 is selected, and the image on the wide angle side is displayed as the parent screen and the image on the telephoto side is displayed as the sub screen. As a result, when the zoom magnification of the zoom lens 11 for video is set at a wider angle side than that of the zoom lens 2 for steel, the liquid crystal panel 12 is provided with a wide angle side An image A of the telephoto side is displayed on the left side of the image A and a sub screen B which is the same as the still image on the telephoto side which is photographed by the still camera section 32 is displayed.

If the zoom magnification of the zoom zoom lens 22 for zoom is set to the wide angle side of the video zoom lens 11 when the power switch 18 of the still camera section 32 is turned on during video imaging, 77 select the signals (b, a) from the viewfinder signal processing circuit 71 and the sub-screen processing circuit 79 and also output the video image on the telephoto side to the sub- . As a result, in the liquid crystal panel 12, the image A received by the zoom lens 22 for the still image is displayed as a parent image, and the image A received by the video zoom lens 11 is displayed on the upper left- The screen B is displayed.

5, the zoom magnification of the video camera portion 34 inserted by the character inserting circuit 78 and the zoom magnification of the still camera portion 32 are displayed on the screen of the liquid crystal panel 12 . As a result, the zoom magnification of the video camera unit 34 and the zoom magnification of the still camera unit 32 can be checked while viewing the liquid crystal panel 12, and two images can be identified.

When the image recorded on the magnetic tape 33 is reproduced, the selection circuit 77 selects the signal c from the video signal processing circuit 62 and displays the reproduced image on the liquid crystal panel 12 .

Next, the processing executed by the control circuit 44 will be described with reference to the flowchart of Fig.

In step S1 (hereinafter " step " is omitted), it is checked whether or not the power switch 14 of the video camera section 34 is turned on. In S1, when the power switch 14 of the video camera unit 34 is off, it shifts to S2 and checks whether or not the power switch 18 of the still camera unit 32 is turned on . When the power switch 18 of the still camera section 32 is off, the process returns to S1 and a standby state is repeated in which the processes of S1 and S2 are repeated.

When the power switch 14 of the video camera unit 34 is turned on in S1, the process advances to S3 and the zoom magnification A as the zoom information of the video zoom lens 11 is read out. Then, in the next step S4, the zoom lens 21a for the viewfinder is driven to adjust the zoom magnification of the zoom lens 21a for the viewfinder to the zoom magnification A of the video zoom lens 11.

In the next S5, the image picked up by the zoom lens 21a for the viewfinder is displayed on the liquid crystal panel 12. Thereby, the same image as the image captured by the video camera section 34 is displayed on the liquid crystal panel 12, the image captured by the video camera section 34, and the angle of view can be confirmed on the liquid crystal panel 12, When the image pickup switch 13 of the video camera unit 34 is turned on, the recording mode is set and the image signal is magnetically recorded on the magnetic tape 33 by the magnetic head 65. [ The zoom magnification of the video camera unit 34 is displayed on the screen of the liquid crystal panel 12. [

In next step S6, it is checked whether or not the power switch 14 of the video camera unit 34 is turned on. If the power switch 18 of the still camera section 32 is off during video imaging, the process advances to step S7 to check whether or not the power switch 14 of the video camera section 34 is turned off .

In S7, when the power switch 14 of the video camera unit 34 is turned on, the process returns to S5 and the imaging by the video camera unit 34 is continued. However, when the power switch 14 of the video camera unit 34 is turned off in S7, it is determined that the image capturing by the video camera unit 34 has ended and the screen of the liquid crystal panel 12 is removed The process of FIG.

When the power switch 18 of the still camera section 32 is turned on in step S6, still photography during video image capturing is set to be performed. Then, the process proceeds from S6 to S9, and the zoom magnification B as the zoom information of the zoom zoom lens 22 is read.

In the next S10, the zoom magnification A of the zoom zoom lens 11 is compared with the zoom magnification B of the zoom zoom lens 22 for a still image. At this time, if the zoom magnification of the zoom zoom lens 11 is set to the wide angle side of the zoom zoom lens 22 (AB), the process advances to S11, and the still image picked up by the zoom zoom lens 22 operated to the telephoto side And creates a sub screen B composed of the same still image as that of the sub screen B.

5, on the screen of the liquid crystal panel 12, an image A captured by the video zoom lens 11 operated to the wide angle side is displayed as a parent screen, (B) which is the same as the still image photographed by the zoom zoom lens 22 operated to the telephoto side is displayed on the upper left side of the screen A shown in Fig. As a result, the video image A captured by the video camera section 34 can be confirmed on the screen of the liquid crystal panel 12, and the still image without the parallax and the angle of view of the still camera section 32 can be simultaneously viewed have.

The marginal portion corresponding to the difference in zoom magnification between the zoom zoom lens 11 for video and the zoom zoom lens 22 for zoom is set in the sub screen as a still picture on the telephoto side, It is not displayed on the screen and is easy to see.

By viewing the sub screen B displayed on the screen of the liquid crystal panel 12, it is possible to confirm the angle of view that can be photographed by the still camera section 32 even during the imaging, so that the still image can be photographed without missing the shutter chance . In the vicinity of the sub screen B, the zoom magnification of the still camera section 32 is displayed.

As the zoom magnification of the still camera section 32 and the zoom magnification of the video camera section 34 are displayed on the liquid crystal panel 12 as described above, the video camera section 34 and the still camera section 34, The difference in zoom magnification of the zoom lens 32 can be known. As a result, even if there is a difference in the size of each image displayed on the electronic viewfinder 12, video imaging and still imaging can be performed without any trouble.

When the shutter opening 17 is depressed, the shutter 36 opens and closes at the shutter speed corresponding to the brightness at that time, and an image of the object incident through the zoom lens 22 is formed on the film 31 and recorded.

In next step S13, it is checked whether or not the power switch 18 of the still camera section 32 is turned off. When the power switch 18 of the still camera section 32 is turned on in S13, the process proceeds to S14 and it is determined whether or not the power switch 14 of the video camera section 34 is turned off. When the power switch 14 of the video camera unit 34 is still on, video imaging and still photography are continued, so the process returns to S3 and the process of S3 and subsequent steps is repeated.

When the power switch 14 of the video camera unit 34 is turned off in step S14, still photography is continued and the process proceeds to step S16 described later. However, when the power switch 18 of the still camera section 32 is turned off in step S13, since the video imaging and the still photography have been completed, the process proceeds to step S7 described above, and the power switch 18 of the video camera section 34 It is checked whether or not the switch 14 is turned off.

In S7, when the power switch 14 of the video camera unit 34 is off, the screen of the liquid crystal panel 12 is removed and the current process is terminated.

When the zoom magnification of the zoom zoom lens 22 is set to the wide angle side of the zoom zoom lens 11 in step S10, the image information of the sub screen to be inserted into the liquid crystal panel 12 is insufficient, The process advances to step S15 to create a sub screen B of the video image captured by the video zoom lens 11 operated to the telephoto side.

In this case, the same image (A) as the still image photographed by the zoom zoom lens 22 operated on the wide angle side on the screen of the liquid crystal panel 12 is displayed as a parent screen in S12, And a sub screen B which is the same as the video image picked up by the zoom zoom lens 11 operated to the telephoto side is displayed on the upper side. As a result, the still image photographed by the still camera section 32 can be confirmed on the screen of the liquid crystal panel 12, and the same image as the video image of the video camera section 34 can be simultaneously viewed.

Even if the zoom magnification changes due to the zoom operation and the still image and the video image are exchanged, the zoom magnification of the still camera section 32 and the zoom magnification of the video camera section 34 are displayed on the screen of the liquid crystal panel 12, The displayed image is not confused. Thus, the still picture on the wide-angle side is set as the parent screen and the video image on the telephoto side is set as the sub screen, so that the blank screen is provided with the margin portion It is not displayed on this screen, and it is easy to see.

Therefore, even when the angle of view of the zoom lens 22 for steels is set to be wider than the angle of the video zoom lens 11, the still image photographed by the still camera section 32 can be photographed while being confirmed by the liquid crystal panel 12.

When the power switch 18 of the still camera section 32 is turned on in step S2, the process advances to step S16 to read the zoom magnification B of the zoom lens 22 for still. In the next step S17, the zoom lens 21a for the viewfinder is driven to adjust the zoom magnification of the zoom lens 21a for the viewfinder to the zoom magnification B of the zoom lens 22 for still.

Thus, in the next step S18, the image picked up by the zoom lens 21a for the viewfinder is displayed on the screen of the liquid crystal panel 12. Therefore, the image of the angle of view corresponding to the zoom magnification of the zoom lens 22 of the still camera section 32 is displayed on the liquid crystal panel 12. [

In this case, the liquid crystal panel 12 becomes a dedicated finder of the still camera section 32, and furthermore, the entire screen can be used as a finder, so that the subject can be easily viewed, and photographing can be easily performed. As a result, the still image can be photographed while viewing the liquid crystal panel 12 even at times other than the video imaging. The zoom magnification of the still camera section 32 is displayed on the screen of the liquid crystal panel 12.

In S19, it is checked whether or not the power switch 14 of the video camera unit 34 is turned on. When the power switch 14 of the video camera unit 34 is turned on in S19, the process advances to S20 and the zoom magnification A as the zoom information of the video zoom lens 11 is read.

In the next step S21, the zoom magnification A of the zoom zoom lens 11 is compared with the zoom magnification B of the zoom zoom lens 22 for a still image. At this time, if the zoom magnification of the zoom zoom lens 22 is set to the wide angle side of the video zoom lens 11 (AB), the process proceeds to S22 and the image is picked up by the video zoom lens 11 operated to the telephoto side A sub screen B composed of the same video image as the image is created.

Subsequently, the flow advances to step S23. On the screen of the liquid crystal panel 12, the same image (A) as the still image captured by the zoom lens 22 operated by the wide angle side is displayed on the screen of the liquid crystal panel 12, And a sub screen identical to the video image picked up by the zoom zoom lens 11 operated to the telephoto side is displayed at the upper left of the screen. As a result, the video image captured by the video camera unit 34 can be confirmed on the screen of the liquid crystal panel 12, and the still image without the parallax and the angle of view of the still camera unit 32 can be simultaneously viewed .

In the next step S24, it is checked whether or not the power switch 18 of the still camera section 32 is turned off. When the power switch 18 of the still camera section 32 is turned on in step S24, the process returns to step S16 described above to execute the processes in and after step S16. However, when the power switch 18 of the still camera section 32 is turned off in S24, the process goes to S25 to determine whether the power switch 14 of the video camera section 34 has been turned off.

When the power switch 14 of the video camera unit 34 is turned on in step S25, the still photography is completed, and the process returns to step S3 to repeat step S3 and the subsequent steps. When the power switch 14 of the video camera unit 34 is turned off in step S25, the screen of the liquid crystal panel 12 is removed and the present process is terminated.

In this way, when the video camera section 34 and the still camera section 32 simultaneously capture and photograph, the image on the wide angle side is displayed on the screen of the liquid crystal panel 12 as a close-up image according to the comparison of the zoom magnification, The video image and the still image can be captured and photographed while simultaneously viewing the video image and the still image on the liquid crystal panel 12, even in the case of performing still photography during video image capture or during video still photography.

Therefore, even when the video camera section 34 is picking up the image, the still image can be photographed without missing the shutter opportunity by the still camera section 32. [

In the above embodiment, the liquid crystal panel 12 is provided on the back surface of the video camera body 10, but the present invention is not limited thereto, and a configuration in which the liquid crystal panel 12 is provided at another position It is of course possible to apply the invention.

In the above embodiment, the image A captured by the video camera section 34 is displayed on the screen of the liquid crystal panel 12 and the angle of view of the zoom lens 22 for the left side The present invention is not limited to this. For example, the sub screen B may be displayed at another position (the upper right corner of the screen, the lower left corner, or the upper left corner of the screen) I do not mind.

The still camera integrated type video camera of the present invention as described above can display an image captured by the electronic viewfinder unit on the liquid crystal panel by adjusting the zoom magnification at the operated zoom magnification and is received by the zoom lens for zoom and the video eyepiece lens An image having the same angle of view as the image obtained can be displayed on the liquid crystal panel. Moreover, not only parallax error can be eliminated, but also an image displayed on the liquid crystal panel can be photographed by the still camera section.

In addition, all the images accepted by the zoom lens for steel or the zoom lens for video can be displayed, and even if the zoom magnification of each zoom lens is arbitrarily changed, it can be confirmed by the liquid crystal panel.

In addition, since an image of the view angle of the telephoto side zoom magnification can be displayed on the liquid crystal panel in the subscreen from among the view angles received by the zoom lens for zoom or the zoom lens for video, when the still camera captures an image while being picked up by the video camera, Even if the zoom magnification of the two zoom lenses is different, the angle of view of the zoom lens for the steel and the zoom lens for the video can be checked at the same time. As a result, even when the video camera unit picks up the image, the chance of the shutter of the still camera unit is not missed.

A character or a figure can be inserted into the image signal outputted from the viewfinder signal processing circuit. Therefore, even if the display of the sub screen is changed according to the difference of the zoom magnifications of the two zoom lenses, it is easy to easily recognize which one is the video image and the still image . As a result, for example, in the case of photographing with the still camera unit while the image is being captured by the video camera unit, the zoom magnification of one of the zoom lenses is manipulated in a state in which both images are simultaneously displayed on the liquid crystal panel, The image of the video camera unit and the image of the still camera unit can be identified.

Claims (4)

A still camera zoom section for changing the zoom magnification of the still zoom lens; a still camera zoom section for changing the zoom magnification of the still zoom lens; a still image zooming section for moving the still image of the moving image picked up by the zoom zoom lens for video; A video zoom unit for changing the zoom magnification of the video zoom lens; an electronic viewfinder unit for converting the optical signal received by the finder lens into an image signal; A still camera integrated video camera having a liquid crystal panel for displaying an image received by a finder unit, A zoom lens installed as a finder lens of the electronic viewfinder unit and having a focal distance similar to that of the zoom lens for a still picture and the zoom lens for a video; A viewfinder signal processing circuit for converting an optical signal photographed by the zoom lens for the viewfinder into an electric signal and generating an image signal to be output to the liquid crystal panel; And And zoom magnification adjusting means for adjusting the zoom magnification of the zoom lens for the viewfinder to the zoom magnification operated by the steady zoom operating means or the video zoom operating means, And the image corresponding to the angle of view received from the zoom magnification of the zoom lens for zoom use or the zoom zoom lens for video is displayed on the liquid crystal panel. The still camera integrated video camera according to claim 1, wherein the zoom magnification adjusting means adjusts the zoom magnification of the zoom lens for the viewfinder to the zoom magnification on the wide angle side among the view angles received by the zoom lens for zoom or zoom for video, camera. The zoom lens system according to claim 2, wherein the signal output from the viewfinder signal processing circuit is processed into an image at a zoom angle of the telephoto side from a view angle received by the still zoom lens or the video zoom lens, Wherein the video camera is a video camera. The still camera integrated video camera according to claim 3, further comprising an insertion circuit for inserting characters or pictures into the image signal output from the viewfinder signal processing circuit.