JPH071654U - Television camera equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to realize a television camera device capable of simultaneously displaying color temperature information of external light and an image projected on an image sensor on a CRT, a viewfinder, or the like. A means for detecting a color temperature of external light and converting it into an electric signal, a means for calculating a color temperature from the electric signal and converting the result into a character signal, and adding the character signal and the video signal. A television camera device having a means for simultaneously displaying color temperature information and an image projected by an image sensor on a display device such as a CRT or a viewfinder.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a television camera device that detects a color temperature of external light and simultaneously displays the color temperature information and an image projected by an image sensor on a CRT, a viewfinder or the like.

[0002]

[Prior art]

 The conventional television camera device does not have a function of simultaneously displaying the color temperature information of the external light and the image projected by the image sensor on the CRT or the viewfinder.

[0003]

[Problems to be solved by the device]

 In the conventional technology, since there is no function of simultaneously displaying the color temperature information of the external light and the image projected by the image sensor on the CRT or the viewfinder, it is not possible to know the accurate color temperature, and the color temperature conversion filter and the white The balance control was inaccurate because it was left to the experience and intuition of the camera operator. The present invention eliminates these drawbacks and knows the accurate color temperature, so that even an inexperienced person can appropriately control the color temperature filter and white balance, and adjust the color temperature of external light to CRT or CRT. It is intended to be displayed on the viewfinder, etc.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises means for detecting the color temperature of external light and converting it into an electric signal, means for calculating the color temperature from the electric signal, and converting the result into a character signal. It is configured to have a means for adding the above-mentioned character signal and video signal.

[0005]

[Action]

 As a result, the color temperature information of external light and the image projected by the image sensor can be simultaneously displayed on the CRT, viewfinder, or the like.

[0006]

【Example】

 An embodiment of the present invention will be shown in FIG. 1 and its contents will be described in detail below. 1, 5 are incident lights. Reference numeral 2 is an image sensor, and 3 is a video signal processing circuit, which applies various corrections to the video signal. Reference numeral 4 is a video signal output, and 6 is a color temperature detecting device which detects the color temperature of the incident light 5 and outputs an electric signal corresponding to this color temperature. Reference numeral 7 denotes an arithmetic device which calculates the color temperature in accordance with the output signal of the color temperature detecting device 6 and converts the calculation result into a character signal. 8 is an adder for adding two input signals. A display device 9 such as a CRT or a viewfinder is a device for converting a video signal into visual information.

The operation will be described below. The incident light 1 is converted into a video signal by the image sensor 2, various corrections are applied to this video signal by the video signal processing circuit 3, and the output is output as the video signal output 4 and the adder 8 Supply to. On the other hand, the color temperature detection device 6 outputs an electric signal corresponding to the color temperature of the incident light 5. From the electric signal output of the color temperature detecting device 1, the corresponding color temperature is calculated in the calculating device 7, and the calculation result is converted into a character signal. Then, the adder 8 adds the output of the arithmetic unit 7 and the video signal output 4 to the display unit 9 and at the same time as the video signal output 4, the numerical value of the color temperature information which is easy for humans to understand is displayed on a character (such as a character or a number). 2) and graphics such as dots and graphs (see FIG. 3). With the above-described configuration, the color temperature information of external light and the image projected by the image sensor can be simultaneously displayed on the CRT, viewfinder, or the like.

[0008]

[Effect of device]

 According to the present invention, since the color temperature information of external light and the image displayed on the image pickup device can be simultaneously displayed on the CRT or the viewfinder, the accurate color temperature can be known, and the color temperature conversion filter and Even those who have no experience in white balance control will be able to properly control the color temperature filter and white balance.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of the present invention.

FIG. 2 is a diagram in which color temperature information is displayed as characters on a screen of a display device.

FIG. 3 is a diagram in which color temperature information is displayed as a graph on a screen of a display device.

[Explanation of symbols]

1: incident light, 2: image sensor, 3: video signal processing circuit,
4: video signal output, 5: incident light, 6: color temperature detection device,
7: arithmetic device, 8: adder, 9: display device.

Claims (1)

[Scope of utility model registration request] 1. In a television camera device for processing an image projected by an image pickup device by a video signal processing circuit and outputting the image to a display device such as a CRT or a viewfinder, an electric signal is detected by detecting a color temperature of external light. By converting the color temperature from the electric signal and converting the result into a character signal, and a means for adding the character signal and the video signal.
A television camera device characterized by simultaneously displaying color temperature information and an image projected by an image sensor on a display device such as an RT or a viewfinder.