JPS58184968U - Autofocus power supply circuit - Google Patents

Autofocus power supply circuit

Info

Publication number
JPS58184968U
JPS58184968U JP8169382U JP8169382U JPS58184968U JP S58184968 U JPS58184968 U JP S58184968U JP 8169382 U JP8169382 U JP 8169382U JP 8169382 U JP8169382 U JP 8169382U JP S58184968 U JPS58184968 U JP S58184968U
Authority
JP
Japan
Prior art keywords
power supply
autofocus
supply circuit
focus
level
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
JP8169382U
Other languages
Japanese (ja)
Inventor
卓 佐々木
Original Assignee
三洋電機株式会社
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 by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP8169382U priority Critical patent/JPS58184968U/en
Publication of JPS58184968U publication Critical patent/JPS58184968U/en
Pending legal-status Critical Current

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  • Focusing (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の一実施回路ブロック図を示す。 主な図番の説明、６・・・フォーカスリング、１６・・
・レベル検出回路、１７・・・スイッチング回路。The figure shows a circuit block diagram of one implementation of the present invention. Explanation of main figure numbers, 6...Focus ring, 16...
- Level detection circuit, 17... switching circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被与体像迄の距離を測定し乍らフォーカスリングをモー
タ駆動して合焦点制御を為すビデオカメラのオートフォ
ーカス機構に於て、擦像出力レベルがスレッシュホール
ドレベル以下になったことを検出するレベル検出回路と
、該検出出力の発生に伴い前記オートツーオーカス機構
に対する電源供給を断つスイッチング回路とをそれぞれ
設けて成るオートフォーカス電源回路。In the autofocus mechanism of a video camera that measures the distance to the object image and controls the focus by driving the focus ring with a motor, it is detected that the frictional image output level has fallen below a threshold level. An autofocus power supply circuit comprising a level detection circuit and a switching circuit that cuts off power supply to the auto-to-focus mechanism upon generation of the detection output.
JP8169382U 1982-06-01 1982-06-01 Autofocus power supply circuit Pending JPS58184968U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8169382U JPS58184968U (en) 1982-06-01 1982-06-01 Autofocus power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8169382U JPS58184968U (en) 1982-06-01 1982-06-01 Autofocus power supply circuit

Publications (1)

Publication Number Publication Date
JPS58184968U true JPS58184968U (en) 1983-12-08

Family

ID=30090786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8169382U Pending JPS58184968U (en) 1982-06-01 1982-06-01 Autofocus power supply circuit

Country Status (1)

Country Link
JP (1) JPS58184968U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110037A (en) * 1976-03-12 1977-09-14 Canon Inc Electric source switch for detection circuit for focusing state

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110037A (en) * 1976-03-12 1977-09-14 Canon Inc Electric source switch for detection circuit for focusing state

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