JPS60189175U - Insufficient light display device for TV cameras - Google Patents
Insufficient light display device for TV camerasInfo
- Publication number
- JPS60189175U JPS60189175U JP7743484U JP7743484U JPS60189175U JP S60189175 U JPS60189175 U JP S60189175U JP 7743484 U JP7743484 U JP 7743484U JP 7743484 U JP7743484 U JP 7743484U JP S60189175 U JPS60189175 U JP S60189175U
- Authority
- JP
- Japan
- Prior art keywords
- display device
- iris
- cameras
- detecting
- light display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の光量不足表示装置を有するテ° レ
ビカメラのブロック図、第２図は従来のテレビ１ カ
メラのブロック図である。
１・・・撮像管、２・・・前置増幅器、３・・・直流再
生口・ 路、４・・・検波回路、５・・・アイリス制
御回路、６・・・； アイリス、８・・・レベル検出
回路、９・・・表示回路、１１・・・アイリス開放状態
検知回路、１２・・・アイドゲート。FIG. 1 is a block diagram of a television camera having a light deficiency display device according to the present invention, and FIG. 2 is a block diagram of a conventional television camera. DESCRIPTION OF SYMBOLS 1... Image pickup tube, 2... Preamplifier, 3... DC regeneration port/path, 4... Detection circuit, 5... Iris control circuit, 6...; Iris, 8... - Level detection circuit, 9... Display circuit, 11... Iris open state detection circuit, 12... Eye gate.
Claims (1)
イリスが開放状態にあるか否かを検知するアイリス開放
状態検知手段と、撮像管より導出されるビデオ信号を検
波して得られる検波出力レベルが所定値以上にあるか否
かを検知するレベル検出手段と、前記両手段の検知出力
に基いて表示回路を駆動する手段とを具備してなるテレ
ビカメラにおける光量不足表示装置。A television camera equipped with an auto-iris mechanism includes an iris open state detection means for detecting whether the iris is in an open state, and a detection output level obtained by detecting a video signal derived from an image pickup tube that exceeds a predetermined value. What is claimed is: 1. A light quantity insufficient display device for a television camera, comprising: a level detecting means for detecting whether or not the light is present; and means for driving a display circuit based on the detection outputs of the two means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7743484U JPS60189175U (en) | 1984-05-25 | 1984-05-25 | Insufficient light display device for TV cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7743484U JPS60189175U (en) | 1984-05-25 | 1984-05-25 | Insufficient light display device for TV cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60189175U true JPS60189175U (en) | 1985-12-14 |
Family
ID=30620496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7743484U Pending JPS60189175U (en) | 1984-05-25 | 1984-05-25 | Insufficient light display device for TV cameras |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189175U (en) |
-
1984
- 1984-05-25 JP JP7743484U patent/JPS60189175U/en active Pending
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