JPS61126671U

JPS61126671U -

Info

Publication number: JPS61126671U
Application number: JP1985008869U
Authority: JP
Priority date: 1985-01-24
Filing date: 1985-01-24
Publication date: 1986-08-08

Description

[Brief explanation of drawings]

第１図は本考案の実施例で被写体の周辺ケ所に
指標を配置した簡略化した斜視図であり、第２図
は本実施例のテレビカメラの自動光量調整装置と
画像処理装置、テレビカメラ、オートアイリス機
構の接続関係を示すブロツク図であり、第３図は
本実施例のテレビカメラの自動光量調整装置関係
のブロツク図であり、第４図は垂直、水平同期信
号に同期して発生させるタイミングパルス及び映
像信号の関係を示すタイミングチヤートである。
第５図は従来例で、イはテレビと被写体の斜視図
で、ロは簡略化したブロツク図である。２，３，４，５……指標、６……テレビカメラ
。 Fig. 1 is a simplified perspective view of an embodiment of the present invention in which indicators are placed around the subject, and Fig. 2 shows the automatic light amount adjustment device and image processing device of the television camera of this embodiment, the television camera, FIG. 3 is a block diagram showing the connection relationship of the auto iris mechanism, FIG. 3 is a block diagram related to the automatic light amount adjustment device of the television camera of this embodiment, and FIG. 4 shows the timing of generation in synchronization with vertical and horizontal synchronization signals. This is a timing chart showing the relationship between pulses and video signals.
FIG. 5 shows a conventional example, in which A is a perspective view of a television and a subject, and B is a simplified block diagram. 2, 3, 4, 5...index, 6...TV camera.

Claims

[Scope of utility model registration request]

In the automatic light intensity adjustment mechanism of a television camera, an index with a constant reflectance is placed on the outer periphery of the subject, as a reference for automatic light intensity adjustment, opposite the television camera, and the said index is placed on the light receiving surface of the image pickup body of the television camera. An automatic light amount adjustment device for a television camera that forms an image around the periphery and automatically adjusts the light amount of the television camera based on the voltage output value of part or all of a video signal generated by the image formation.