KR100209907B1 - Video camera with the 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 it is being picked up by the video camera. A video zoom lens 11, an electronic viewfinder section 21 and a zoom lens 22 for a still picture are provided on the back of the video camera main body 10. A liquid crystal panel 12 is provided on the back surface of the video camera main body 10. [ The finder image captured by the electronic viewfinder unit 21 is displayed on the liquid crystal panel 12. When a video image is captured, the finder image is magnified to an angle of view corresponding to the zoom magnification of the video zoom lens 11, The finder image is displayed on the liquid crystal panel 12 by varying the angle of view corresponding to zooming of the zoom lens 22 for still use. When the video imaging and the still imaging are performed at the same time, the image of the zoom lens 22 for still is inserted into the image of the video zoom lens 11 into the 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 for magnetically recording a moving image on a magnetic tape and a still camera for exposing a still image to a photographic film have been developed as individual products. However, when the same subject is photographed by a video camera and is also photographed 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, 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.

In 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 at the front center of the housing.

Since the optical viewfinder is installed at the center of the front of the housing in this way, the parallax between the image picked up by the optical viewfinder and the image picked up by the video camera is small, ), So that one optical viewfinder can also serve as a finder of a video camera and a still camera. As a result, it is possible to take an image with a video camera while viewing the optical viewfinder, and also to shoot with a still camera at the time of 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.

To solve such a problem, a still camera integrated video camera having a configuration in which an image captured by a video camera is displayed on a liquid crystal display (LCD) separately from the optical viewfinder and used as an electronic viewfinder is 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, shooting and imaging can be performed while changing the angle of view from a wide angle to a telephoto by using a zoom lens for an objective lens of a still camera and a video camera. For example, a subject at a distance can be taken largely, or a subject not included in the angle of view 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, there is a problem in that if there is a difference in zoom magnification, 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. An imaging device for converting an image received by a finder lens into an electric signal includes a CCD 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 in accordance with the focal distance of the steel zoom lens, , 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 restricted in the area on the image pickup device. Therefore, when this configuration is applied to a still camera-integrated video camera as it is, only a still camera or a video camera, It was not displayed in the viewfinder. As a result, when shooting with a still camera while taking a picture by a video camera, the photographer had to shoot with the angle of view of the zoom lens for the still camera unaware.

Furthermore, since the zoom magnifications of the zoom lens for video and the zoom lens for zoom are individually controlled, when the finder lens is also used as a zoom lens for adjusting the display of the liquid crystal panel to the view angle of the zoom lens for video or the zoom lens for steel, .

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a still camera integrated video camera configured to confirm the angle of view of a still camera from an electronic viewfinder while being imaged by a 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 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 is set to the wide angle side of the still camera,

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

DESCRIPTION OF THE REFERENCE NUMERALS

10: Video camera body 11, 22: 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 32: still camera section

34: Video camera part 43: Still camera zoom control circuit

44: control circuit 61: video camera signal processing circuit

62: video signal processing circuit 65: magnetic head

68: Video camera zoom control circuit 70: Selection circuit

71: Character insertion circuit 72: Viewfinder signal processing circuit

73: image signal processing circuit 74: image magnification conversion circuit

There is provided a still camera comprising: a still camera portion having a still zoom lens for exposing a still image of a subject to a photographic film; zooming means for zooming for changing the zoom magnification of the still zoom lens; A video zoom unit operable to change a zoom magnification of the video zoom lens; and a zoom lens for zooming the video zoom lens in the same direction as the wide angle side of the zoom zoom lens and the video zoom lens, And a liquid crystal panel for displaying an image received by the short focus finder lens, the still camera integrated video camera having a short focus finder lens having a short focal length of the short focus finder lens,

A view finder signal processing circuit for converting an optical signal photographed by said short focus finder lens into an electric signal and generating an image signal to be output to said liquid crystal panel, And an image magnification calculation circuit for calculating a magnification ratio of the image corresponding to the angle of view of the zoom magnification operated by the zoom operation means or the video zoom operation means,

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 image signal output from the viewfinder signal processing circuit is calculated by calculating the scaling factor of the image corresponding to the angle of view of the zoom magnification manipulated by the zoom manipulation means for steal or the video zoom manipulation means to obtain the zoom magnification of the still zoom lens or the video zoom lens It is possible to display an image corresponding to the angle of view received at the zoom magnification on the liquid crystal panel. Therefore, it is possible to capture both the angle of view received by the zoom lens for steel and the zoom lens for video using a single-focal finder lens, An image of the angle of view set for each zoom lens can be displayed on the panel.

The camera described above includes an image signal processing circuit for processing the image signal outputted from the viewfinder signal processing circuit so as to reduce the image signal according to the zoom magnification operated by the zoom operation means for still or video zoom operation means, And a selection circuit for inserting an output signal from the image signal processing circuit into an output signal from the circuit as a sub-picture corresponding to an angle of view of the still zoom lens or the video zoom lens,

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

Therefore, the image signal processing circuit processes the image signal outputted from the viewfinder signal processing circuit so as to reduce the image signal according to the zoom magnification operated by the zoom operation means for still or video zoom operation means, An output signal from the image signal processing circuit is inserted into the signal as a sub-screen corresponding to the angle of view of the zoom lens or zoom lens for video, so that an image corresponding to the angle of view of the zoom lens for zoom and the zoom lens for video can be displayed on the liquid crystal panel The angle of view of the zoom lens for a still image and the zoom lens for a video image can be confirmed at the same time even when the still camera part shoots the image while the image is being captured by the video camera part.

The camera further includes an insertion circuit for inserting a character, a figure, or the like into the image signal output from the viewfinder signal processing circuit.

Therefore, in the case of photographing with the still camera section while the image is being taken 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 the video camera unit. A video zoom lens 11 of a video camera is provided on the left side of the front side, and a liquid crystal panel (LCD display) 12 as an electronic viewfinder is provided on the back side. In this liquid crystal panel 12, either a parent screen for displaying an image on the entire screen in accordance with each operation mode and a parent screen on which a child screen smaller than the parent screen is inserted into the parent screen is selectively displayed, as described later. A video camera switch 13 for video cameras, 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 formed on the upper surface of the video camera body 10 And various operation ports 16 for operating various functions (recording / playback, stop, fast transfer, rewinding, etc.) of the video camera.

Inside the video camera main body 10, a video AF mechanism (not shown) for measuring a distance to an object photographed by the zoom lens 11 for a video camera is incorporated. Furthermore, 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 attached to the front right side of the video camera main body 10 and an electronic viewfinder portion 21 of the still camera portion is provided. A short focal length lens having a shorter focal distance than the wide angle side of the zoom lens for video 11 and the zoom lens for still 22 is used as the finder lens 21a of the electronic viewfinder unit 21. [ 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.

The electronic viewfinder section 21 is a circuit block including the finder lens 21a and the viewfinder signal processing circuit 72 and switches and includes a still camera section 32, a video camera section 34, Respectively.

The zoom lens 22 for steel, the outside light emitting element for side-to-side volume 23, the out-of-range external light receiving element 24, and the strobe 25 are provided in the still camera body 20. 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. The AF mechanism for a still camera is provided with a positional shift when the infrared light is emitted from the out-of-sample outside light emitting element 23, reflected by the object, And the distance to the subject is determined according to the principle of triangulation.

The still camera main body 20 is provided on a mounting cover 27 so as to be rotatable on the front surface of the still camera main 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, the 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 zoom lens 22 to the wide angle side or the telephoto side and is driven and controlled by a drive 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 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 a 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, so that the so-called exposure control for controlling the exposure amount and the exposure time to the film 31 is performed.

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 focus control, which controls the position of the lens by driving the zoom lens 22, is performed.

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. In addition, 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 obtained 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 section 67 moves the lens of the zoom lens for video 11 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 corresponding to the zoom magnification set by the operation of the zoom switch 15 by a zoom control function to be described later and supplies this zoom information to the video camera zoom control circuit 68. [

The diaphragm driver 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 and supplies the amount of incident light to the CCD image sensor . 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, which controls the amount of light supplied to the CCD image sensor, which converts the signal into a signal.

The video camera signal converted by the video camera signal processing circuit 61 is supplied to the selection circuit 70 via the video signal processing circuit 62. Then, as will be described later, the signal selected by the selection circuit 70 is supplied to the character insertion circuit 71. The character insertion circuit 71 creates an insertion character or picture in accordance with the information from the control circuit 44, and inserts the created insertion character or picture on the screen of the liquid crystal panel 12 to display it.

As a result, even when 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, when both images are taken by the still camera section 32 while the video camera section 34 is picking up 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 71 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 liquid crystal panel 12 screen. In addition to the zoom magnification, the character inserting circuit 71 can insert information such as characters and pictures that can be recorded in the VTR mode such as date, time, PLAY, REC, etc. into the liquid crystal panel 12.

The control circuit 44 is connected to the image pickup switch 13, the video camera power switch 14, the video camera zoom switch 15, the shutter aperture 17, the still camera power switch 18, A switch 19 and various operation 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) in which the zoom magnification is coincident and an area (70 to 105 mm) in which the zoom magnification is different 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, A still image angle display mode in which an image corresponding to the angle of view photographed by the zoom lens 22 of the stereophotograph unit 32 is displayed as a subscreen on the basis of the zoom ratio of the zoom magnification of the video camera unit 34 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 input.

Video signal processing circuit 62, at the reproduction mode by demodulating the reproduced image signal and audio signal read from the magnetic tape 33 by the magnetic head 65, an output terminal (T _out) to the external device (the external display Etc.). 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.

Reference numeral 72 denotes a viewfinder signal processing circuit which converts the light condensed by the finder lens 21a of the electronic viewfinder section 21 into an electrical signal and outputs it as an image signal.

Reference numeral 73 denotes an image signal processing circuit for extracting a signal for converting the image signal output from the viewfinder signal processing circuit 72 into a sub-image on the viewfinder. At this time, the angle is adjusted to the angle of view photographed by the still camera section 32. For example, when both images are simultaneously displayed on the screen of the liquid crystal panel 12 in the case where the still camera section 32 is shooting while the video camera section 34 picks up the image, the still camera section 32, The image display portion corresponding to the image display portion is removed.

And 74 denotes an image magnification conversion circuit which converts an image signal output from the viewfinder signal processing circuit 72 based on a command from the control circuit 44 into an angle of view received by the still camera section 32, In order to obtain the angle of view received by the camera.

The image signal a output from the image signal processing circuit 73 and the image signal b output from the image multiplication and conversion circuit 74 are input to the selection circuit 70. The control circuit 44 outputs, And outputs the selected signal to the character inserting circuit 71.

For example, when the power switch 14 and the image pickup switch 13 of the video camera section 34 are turned on, the image magnification conversion circuit 74 converts the image signal output from the viewfinder signal processing circuit 72 into electronic zoom And the selection circuit 70 selects the signal b from the image magnification conversion circuit 74. The selection circuit 70 selects the signal b from the image magnification conversion circuit 74 based on the zoom magnification of the zoom lens 11, 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 70 selects the signals a, b from the image signal processing circuit 73 and the image conversion circuit 74, b) is selected. As a result, as shown in Fig. 3, the liquid crystal panel 12 displays the image A captured by the video camera section 34 as a parent screen, and the still camera section 32 is inserted and displayed in the same sub screen B. When the image recorded on the magnetic tape 33 is reproduced, the selection circuit 70 selects the signal c from the video signal processing circuit 62 and displays the reproduced image on the liquid crystal panel 12 .

The finder lens 21a is set on the wider angle side than the zoom lens 22 for the steel so that an image of the angle of view corresponding to the zoom magnification of the zoom lens 22 for zoom is obtained from the image signal picked up by the video camera unit 34, (B). That is, since the finder lens 21a uses a lens of a wider angle than the video zoom lens 11 and the zoom lens 22 for steel, the liquid crystal panel 12 is picked up by the finder lens 21a irrespective of the angle of view of the two zoom lenses 11, , An image to be photographed can be displayed, and margins due to a difference in angle of view are not photographed on the sub screen.

3, the zooming of the video camera unit 34 and the zoom magnification of the still camera unit 32 are inserted and displayed by the character insertion circuit 71 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. [

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. When the power switch 14 of the video camera unit 34 is turned off in S1, the process goes to S2 to check whether 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 proceeds to S3 and the zoom magnification A as the zoom information of the video zoom lens 11 is read. In the next step S4, the finder image picked up by the finder lens 21a is multiplied by the image of the angle of view corresponding to the zoom magnification of the video zoom lens 11 to display the image A 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 the next step S5, it is checked whether or not the power switch 18 of the still camera section 32 is turned on. If the power switch 18 of the still camera section 32 is off during the video imaging, the process advances to step S6 to check 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 turned on in S6, the process returns to S4 and imaging by the video camera unit 34 is continuously performed. However, if the power switch 14 of the video camera unit 34 is turned off in S6, the liquid crystal panel 12 is removed and the current process is terminated.

When the power switch 18 of the still camera section 32 is turned on in step S5, still photography during video image capturing is set to be performed. Then, the process advances from S5 to S8 to read the zoom magnification B as the zoom information of the zoom lens 22.

In the next step S9, a sub screen B composed of the same image as the still image shot by the zoom lens 22 is created. 3, the image A captured by the zoom lens 11 of the video camera unit 34 is displayed on the screen of the liquid crystal panel 12 as a parent screen, A parent screen B is displayed by inserting the same sub screen B as a still picture photographed by the zoom lens 22 of the still camera section 32 at the upper left of the screen A shown in FIG. As a result, the image A captured by the video camera section 34 can be confirmed on the screen of the liquid crystal panel 12, and the image of the still camera section 32 and the image without parallax can be simultaneously viewed.

Since the angle of view photographed by the still camera section 32 can be checked during imaging of the video camera section 34 by viewing the sub screen B displayed on the screen of the liquid crystal panel 12, The still image can be taken without work.

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 liquid crystal panel 12, video image capture and still image capture can be performed without interruption.

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 S11, 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 S11, the process goes to S12 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, the process returns to the step S3, and the process from S3 is repeated.

When the power switch 14 of the video camera unit 34 is turned off in S12, the process proceeds to S13, which will be described later. However, when the power switch 18 of the still camera section 32 is turned off in S11, the process proceeds to the above-described S6 and executes the process of S6.

When the power switch 18 of the still camera section 32 is turned on in step S2, the process advances to step S13 and the zoom magnification B of the zoom lens 22 is read.

Furthermore, in the next step S14, the image picked up by the finder lens 21a is transformed into an image of the angle of view corresponding to the zoom magnification of the zoom lens 22 for still )do. 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 entire surface of the liquid crystal panel 12 on the screen of the liquid crystal panel 12 in step S15. Therefore, the same image as the still image captured by 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 the shooting 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 S16, it is determined 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 S16, the process proceeds to S17 and the zoom magnification A as the zoom information of the video zoom lens 11 is read. Subsequently, in S18, a sub screen B composed of the same image as the still image shot by the zoom lens 22 is created. 3, an image A captured by the zoom lens 11 of the video camera unit 34 is displayed on the screen of the liquid crystal panel 12 as a parent screen, (B) which is the same as the still image photographed by the zoom lens 22 of the still camera section 32 is inserted and displayed on the upper left side of the screen A shown in FIG.

In S20, it is checked whether or not the power switch 18 of the still camera section 32 is turned off. In step S20, when the power switch 18 of the still camera section 32 is turned on, the process returns to step S13 described above, and the process from step S13 is executed. However, when the power switch 18 of the still camera section 32 is turned off in S20, the process advances to S21 to determine 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 turned on in S21, only the video image pickup is performed. Therefore, the process returns to S3 and the processes after S3 are executed. However, when the power switch 14 of the video camera unit 34 is turned off in S21, the screen of the liquid crystal panel 12 is removed and the present process is terminated.

As described above, in the case of photographing with the still camera section 32 during photographing by the video camera section 34, or photographing with the video camera section 34 while photographing with the still camera section 32, An image A captured by the zoom lens 11 of the video camera unit 34 is displayed on the liquid crystal panel 12 as a parent screen and a still image captured by the zoom lens 22 of the still camera unit 32 The same image is displayed as a sub screen B.

As a result, even in the case of performing still photography during video imaging or video imaging during still photography, video imaging and still photography can be performed simultaneously while viewing the screen of the liquid crystal panel 12. [ Therefore, even when the video camera section 34 is picking up the image, the still image can be photographed without missing the shutter chance 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 zoom lens 11 of the video camera unit 34 is displayed on the screen of the liquid crystal panel 12 as a parent screen, The present invention is not limited to such a display pattern in which the sub screen B is displayed at a different position on the screen The upper left corner, the lower left corner, the upper left corner, etc.) of the display screen.

The present invention as described above calculates the image magnification ratio of the image corresponding to the angle of view of the zoom magnification operated by the zoom operation means for still or the video zoom operation means for still, An image corresponding to the angle of view received from the zoom magnification of the zoom lens or the zoom lens for the video can be displayed on the liquid crystal panel. Therefore, all of the angle of view received by the zoom lens for zoom and the zoom lens for video are all photographed using the single- An image of the angle of view set for each zoom lens can be displayed on the liquid crystal panel by using the electronic zoom. As a result, the short focus finder lens is made to be wider on the wide angle side than the other zoom lenses, and the margin portion due to the angle of view difference is not displayed on the liquid crystal panel 12. Further, the manufacturing cost can be made lower than the configuration using the zoom lens as the finder lens.

Further, the image signal processing circuit processes the image signal outputted from the viewfinder signal processing circuit so as to eliminate the image signal according to the zoom magnification operated by the zoom operation means for still or the video zoom operation means, The output signal from the image signal processing circuit is inserted into the signal as a sub-screen corresponding to the angle of view of the zoom lens or the zoom lens for video, so that an image corresponding to the angle of view of the zoom lens for zoom and the zoom lens for video can be displayed on the liquid crystal panel The angle of view of the zoom lens for a still image and the zoom lens for a video image can be confirmed at the same time even when the still camera part shoots the image while the image is being captured by the video camera part. As a result, there is no chance of missing the shutter opportunity of the still photography during the video imaging.

In addition, since an inserting circuit for inserting characters or pictures into the image signal outputted from the viewfinder signal processing circuit is provided, when images are taken by the still camera section during the imaging by the video camera section, 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 (3)

A still camera zoom unit for changing the zoom magnification of the zoom zoom lens for use in steal; and a still camera zoom unit for moving the image signal of the moving image picked up by the zoom zoom lens to the magnetic tape A video zooming operation means for changing the zoom magnification of the video zoom lens, a single focal point having a focal distance equal to the wide angle side of the zoom zoom lens and the video zoom lens, A still camera integrated video camera having an electronic viewfinder section having a finder lens and a liquid crystal panel displaying an image received by the shortfinder finder lens, A viewfinder signal processing circuit for converting an optical signal photographed by the short focus finder lens into an electric signal and generating an image signal to be output to the liquid crystal panel, And an image signal output from the viewfinder signal processing circuit is converted to a variable magnification ratio of an image corresponding to the angle of view of the zoom magnification operated by the steady zoom operating means or the video zoom operating means And an image multiplication arithmetic circuit for calculating an image, 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. An image processing apparatus according to claim 1, further comprising: an image signal processing circuit for processing the image signal output from said viewfinder signal processing circuit in accordance with a zoom magnification operated by said zoom operation means for still or video zoom operation means, And a selection circuit for inserting an output signal from the image signal processing circuit into an output signal from the image variance calculation circuit as a sub-picture corresponding to an angle of view of the still zoom lens or the video zoom lens, Wherein the image corresponding to the angle of view of the zoom lens for steel and the zoom lens for video is displayed on the liquid crystal panel. The still camera integrated video camera according to claim 2, further comprising an insertion circuit for inserting characters or pictures into the image signal output from the viewfinder signal processing circuit.