JPH0714755U - Television camera - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to instantaneously capture images of a plurality of subjects by automatically or manually switching and driving signals from a drive circuit of a television camera to a plurality of image capturing units. [Arrangement] An image pickup device that includes only a plurality of image pickup units including a lens of a television camera, an image pickup device, and a preamplifier, and uses a common circuit for other video signal processing and driving circuits, and drives each subject to be imaged The output signals of the preamplifier are simultaneously switched to capture an image.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a television camera that drives a plurality of image pickup units by switching signals of a single drive circuit.

[0002]

[Prior art]

 FIG. 2 shows a block diagram of the prior art. The light incident from the lenses 1, 1 ', 1 "is photoelectrically converted by the image pickup devices 2, 2', 2" driven by the signals of the drive circuits 4, 4 ', 4 ", and the preamplifiers 3, 3'are used. , 3 ″ is amplified. This signal is subjected to various kinds of signal processing (AGC, gamma correction, etc.) in the video signal processing circuits 5, 5 ', 5 ", and at a level sufficient for output to the monitor 8 by the output amplifiers 6, 6', 6". Is amplified to. These amplified signals are switched by the switch 7 according to the subject to be observed and output to the monitor 8. As described above, in a conventional television camera, one image pickup element is controlled by one drive circuit. Therefore, when observing a plurality of subjects, as many cameras as the number of subjects are required.

[0003]

[Problems to be solved by the device]

 In the above-described conventional technique, in order to image a plurality of subjects, there are two methods, that is, a plurality of cameras are prepared, or one camera is moved to take an image. However, when multiple cameras are used, they can be switched instantly, but they are costly, and when moving the camera direction, it takes time to move to the exact position where you want to capture an image. An object of the present invention is to eliminate these drawbacks and to instantaneously switch a plurality of subjects with a single camera to capture images.

[0004]

[Means and Actions for Solving the Problems]

 In order to achieve the above object, the present invention can reduce the cost by driving a plurality of image pickup units by one drive circuit and switching the image pickup units for each subject, and it is possible to change the subject in an instant. It can be done with one camera.

[0005]

【Example】

 An embodiment of the television camera according to the present invention will be described below with reference to FIG. 1, the same reference numerals as those in FIG. 2 denote the same circuit blocks. Reference numeral 17 denotes a switching device, which switches the driving signal of the driving circuit 14 to any one of the image pickup devices 2, 2 ', 2 "which face the direction of the subject to be imaged, and outputs the drive signal. , 2 "corresponding to the output signals of the preamplifiers 3, 3 ', 3" are output to the video signal processing circuit 5. For example, when the object to be imaged is the object A, the switching device 17 drives the signal. The signal of the circuit 14 is switched to the image sensor 2 to be output, and the output signal of the preamplifier 3 is switched to the video signal processing circuit 5 to be output. When the subject B is to be imaged, the signal of the drive circuit 14 is transmitted to the image sensor 2 '. The output signal is switched and output, and the output signal of the preamplifier 3'is switched and output to the image processing circuit 5. In this way, the output signal of the image pickup element to be driven and the output signal of the preamplifier are simultaneously switched for each subject to be imaged. Can image the plurality of objects in one camera by the.

[0006]

[Effect of device]

 According to the present invention, it is possible to observe a plurality of subjects with one camera by switching the signal of the drive circuit to be automatically or manually output to any of the plurality of image pickup devices.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional technique.

[Explanation of symbols]

 1, 1 ', 1 "lens 2, 2', 2" imaging device 3, 3 ', 3 "preamplifier 5 video signal processing circuit 8 monitor 14 drive circuit 17 switcher

Claims (1)

[Scope of utility model registration request] 1. A plurality of image pickup units, one drive circuit for driving these image pickup units, and a drive signal of the drive circuit switched to and supplied to any one of the plurality of image pickup units and corresponding image pickup units. A television camera having a switching device for switching and outputting the output signal of.