JPH02147977U - - Google Patents

Info

Publication number
JPH02147977U
JPH02147977U JP5787289U JP5787289U JPH02147977U JP H02147977 U JPH02147977 U JP H02147977U JP 5787289 U JP5787289 U JP 5787289U JP 5787289 U JP5787289 U JP 5787289U JP H02147977 U JPH02147977 U JP H02147977U
Authority
JP
Japan
Prior art keywords
frequency
highest frequency
servo mechanism
image signal
video camera
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.)
Granted
Application number
JP5787289U
Other languages
English (en)
Other versions
JPH0727730Y2 (ja
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 JP1989057872U priority Critical patent/JPH0727730Y2/ja
Publication of JPH02147977U publication Critical patent/JPH02147977U/ja
Application granted granted Critical
Publication of JPH0727730Y2 publication Critical patent/JPH0727730Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示すブロツク図で
ある。 1……オートホーカス装置、11……映像増幅
回路、12……ゲート回路、13……周波数対電
圧変換回路、14……制御回路、15……駆動回
路、21……ビデオ撮像部、22……レンズ系、
23……サーボ機構。

Claims (1)

    【実用新案登録請求の範囲】
  1. ビデオカメラのレンズの焦点調整に対するサー
    ボ機構を制御するオートホーカス装置において、
    前記ビデオカメラの映像出力信号から水平及び垂
    直同期信号を除いた画像信号の最高周波数を検出
    して検出した前記最高周波数に対応する電圧を出
    力する周波数対電圧変換手段と、この周波数対電
    圧変換手段の出力電圧によつて前記画像信号から
    最高周波数を検出すべく前記サーボ機構を制御す
    る制御手段とを有することを特徴とするオートホ
    ーカス装置。
JP1989057872U 1989-05-18 1989-05-18 オートホーカス装置 Expired - Lifetime JPH0727730Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989057872U JPH0727730Y2 (ja) 1989-05-18 1989-05-18 オートホーカス装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989057872U JPH0727730Y2 (ja) 1989-05-18 1989-05-18 オートホーカス装置

Publications (2)

Publication Number Publication Date
JPH02147977U true JPH02147977U (ja) 1990-12-17
JPH0727730Y2 JPH0727730Y2 (ja) 1995-06-21

Family

ID=31582973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989057872U Expired - Lifetime JPH0727730Y2 (ja) 1989-05-18 1989-05-18 オートホーカス装置

Country Status (1)

Country Link
JP (1) JPH0727730Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523331A (en) * 1975-06-27 1977-01-11 Nippon Telegr & Teleph Corp <Ntt> Automatic focusing adjuster of tv camera
JPS5824103A (ja) * 1981-07-08 1983-02-14 Jeol Ltd サ−モグラフイ装置における焦点合わせ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523331A (en) * 1975-06-27 1977-01-11 Nippon Telegr & Teleph Corp <Ntt> Automatic focusing adjuster of tv camera
JPS5824103A (ja) * 1981-07-08 1983-02-14 Jeol Ltd サ−モグラフイ装置における焦点合わせ装置

Also Published As

Publication number Publication date
JPH0727730Y2 (ja) 1995-06-21

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