JPH0390572U - - Google Patents

Info

Publication number
JPH0390572U
JPH0390572U JP15226389U JP15226389U JPH0390572U JP H0390572 U JPH0390572 U JP H0390572U JP 15226389 U JP15226389 U JP 15226389U JP 15226389 U JP15226389 U JP 15226389U JP H0390572 U JPH0390572 U JP H0390572U
Authority
JP
Japan
Prior art keywords
comparator
control circuit
iris control
circuit
pass filter
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
Application number
JP15226389U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15226389U priority Critical patent/JPH0390572U/ja
Publication of JPH0390572U publication Critical patent/JPH0390572U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)
  • Picture Signal Circuits (AREA)

Description

【図面の簡単な説明】
図は本考案の一実施例を示し、第1図はビデオ
カメラのアイリス制御系を示す回路ブロツク図、
第2図はアイリス制御回路の回路図、第3図はア
イリスの作動制御線を示すグラフである。 1……固体撮像素子、6……制御部、7……ア
イリス制御回路、8……ローパスフイルタ、9…
…増幅回路、10,11……比較器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 映像信号中の輝度信号を比較器に入力し、基準
    電圧との比較出力により感度を制御するアイリス
    制御回路に於て、前記比較器の前段にローパスフ
    イルタ並びに増幅回路を直流結合したことを特徴
    とするビデオカメラのアイリス制御回路。
JP15226389U 1989-12-29 1989-12-29 Pending JPH0390572U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15226389U JPH0390572U (ja) 1989-12-29 1989-12-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15226389U JPH0390572U (ja) 1989-12-29 1989-12-29

Publications (1)

Publication Number Publication Date
JPH0390572U true JPH0390572U (ja) 1991-09-13

Family

ID=31698534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15226389U Pending JPH0390572U (ja) 1989-12-29 1989-12-29

Country Status (1)

Country Link
JP (1) JPH0390572U (ja)

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