JPH0548934A - Image recording and reproducing device provided with video camera - Google Patents

Abstract

PURPOSE:To decrease that the subject outside a visual field loses the chance of recording by making narrow the visual field of the screen of a view finder at the time of performing the zoom recording of the screen expansion. CONSTITUTION:A lens 10 is made into a fixed lens, the screen of the constant wide angle is fetched into an image memory 12, the control of the wide angle and the zoom is performed by controlling the range of the screen on the temporarily recorded image memory 12 and the screen is recorded in a magnetic tape. At a view finder 7, the screen to express the range of the part to record on the screen of the constant wide angle is synthesized and displayed. Then, since even at the time of performing the zoom recording of the screen expansion, the wide angle screen is outputted to the view finder 7, it is decreased that the subject outside the zoom screen of the part to record loses the chance of recording.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording / reproducing apparatus with a video camera.

[0002]

2. Description of the Related Art A conventional image recording / reproducing apparatus with a video camera will be described below. FIG. 3 is a block diagram showing a conventional image recording / reproducing apparatus with a video camera. In FIG. 3, reference numeral 1 is a lens. Reference numeral 2 denotes an image sensor, which converts the light projected by the lens 1 into electricity and obtains a video signal 3. A video signal recording circuit 4 performs signal processing for magnetically recording the video signal 3 on the magnetic tape 6 of the recording medium by the magnetic head 5. Reference numeral 7 is a viewfinder for confirming the screen to be recorded on the magnetic tape 6.

The operation of the image recording / reproducing apparatus with a video camera having the above-described structure during zooming will be described. At the time of zooming for enlarging the screen, by moving the lens 1 in the optical axis direction to give light to the image pickup device 2 to a narrow portion of the screen, the video signal recording circuit 4 obtains a video signal of the enlarged screen, that is, the zoom screen. This is recorded on the magnetic tape 6. At this time, the viewfinder 7 outputs the same enlarged and narrow screen as the screen recorded on the magnetic tape 6 for visual confirmation.

[0004]

However, in the above-mentioned conventional configuration, the field of view that can be confirmed by the viewfinder is narrowed during zooming of a narrow screen, and it is not possible to recognize what is outside the screen to be recorded. There was a problem of losing the chance of recording for a subject outside the screen.

The present invention solves the above-mentioned conventional problems, and provides an image recording / reproducing apparatus with a video camera which does not lose the chance of recording without narrowing the field of view in the viewfinder even when the screen is enlarged. The purpose is that.

[0006]

In order to solve the above problems, an image recording / reproducing apparatus with a video camera according to the present invention includes a fixed lens for projecting a certain wide screen on an image pickup device of the video camera, and the image pickup device. Means for recording and recording only the screen in the recording range from the screen of the video signal obtained by the above, a constant video signal screen captured by the image sensor on the viewfinder screen, and a screen showing the range of the recording part. This is to provide a means for combining and displaying.

[0007]

With the above-mentioned means, the range of the portion to be recorded on the viewfinder which is normally wide and constant is confirmed even during zooming, and the field of view in the viewfinder is not narrowed. Less chance to lose.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an image recording / reproducing apparatus according to an embodiment of the present invention. The same parts as those in the conventional example described above are designated by the same reference numerals and detailed description thereof will be omitted. In FIG. 1, an image pickup device 2 converts light received by a lens 10 into a video signal 3, and a video signal recording circuit 4 performs signal processing for magnetically recording on a magnetic tape 6 which is a recording medium by a magnetic head 5. This is the same as the conventional example. The lens 10 is a fixed lens, and does not move in the optical axis direction even at the time of wide angle or zooming and gives a constant wide screen to the image pickup element 2.

An analog-digital converter 11 converts the video signal 3 which is an analog signal into a digital video signal. Reference numeral 12 denotes an image memory, which temporarily stores the digital signal of the video signal 3 output from the image pickup device 2. A recording range control circuit 13 outputs a recording range control signal 14 and a recording range display signal 15, and the recording range control signal 14 controls the range of the screen to be recorded from the screen stored in the image memory 12, thereby The image memory 12 outputs the recording range controlled digital video signal 16. Reference numeral 17 denotes a digital-analog converter, which converts the digital amount output from the image memory 12 into an analog signal and outputs a recording range controlled video signal 18. A superimposing circuit 19 superimposes a signal for displaying the recording range on the video signal 3 by the recording range display signal 15 output from the recording range control circuit 13, and outputs this signal to the viewfinder 7.

The operation of the image recording / reproducing apparatus having the above structure will be described below. In FIG.
(a) is a video signal 3 captured by the image sensor 1. (b) is a view on the viewfinder 7 when not zoomed, and 20 is a frame indicating a superimposed recording range. At this time, the recording range control circuit 13 outputs the recording range control signal 14 to the image memory 12 so as to output the entire screen of (a). (c) is a recorded image at this time. (d) is a view on the viewfinder 7 when zooming, and 21 is a frame indicating a recording range similarly, but the frame is smaller than 20. At this time, the recording range control circuit
13 outputs the recording range control signal 14 to the image memory 12 so as to output the screen within the frame of 21 of the screen of (a). (e) is a recorded image at this time.

As described above, according to the present embodiment, even when the screen is being zoomed, a viewfinder is provided for checking the range of the screen being recorded and at the same time confirming the screen with a constant wide field of view. It will be.

[0012]

As described above, according to the present invention, the field of view of the viewfinder screen is not narrowed even when zooming and recording of an enlarged drawing, and therefore, it is outside the narrowed field of view. It is possible to realize an excellent image recording / reproducing apparatus with a video camera that does not lose a chance of recording on a subject.

[Brief description of drawings]

FIG. 1 is a block diagram of an image recording / reproducing apparatus with a video camera according to an embodiment of the present invention.

[FIG. 2] In the image recording / reproducing apparatus with the same video camera,
It is a figure explaining the relationship between the screen recorded on a magnetic tape, and the screen output to a viewfinder.

FIG. 3 is a block diagram of a conventional image recording / reproducing apparatus with a video camera.

[Explanation of symbols]

 2 Image sensor 7 Viewfinder 10 Fixed lens 11 Analog-digital converter 12 Image memory 13 Recording range control circuit 17 Digital-analog converter 19 Superimpose circuit

Claims (1)

[Claims] 1. A fixed lens for projecting a certain wide screen onto an image pickup device of a video camera, a means for taking out only a screen of a recording portion from a screen of a video signal obtained by the image pickup device, and a viewfinder. An image recording / reproducing apparatus with a video camera, comprising: a means for synthesizing and displaying a constant video signal screen by the image pickup device and a screen showing a range of the recording portion on the screen.