JPS609377U - tv jiyoung camera - Google Patents

tv jiyoung camera

Info

Publication number
JPS609377U
JPS609377U JP9942583U JP9942583U JPS609377U JP S609377 U JPS609377 U JP S609377U JP 9942583 U JP9942583 U JP 9942583U JP 9942583 U JP9942583 U JP 9942583U JP S609377 U JPS609377 U JP S609377U
Authority
JP
Japan
Prior art keywords
aperture
gain control
automatic
amplifier
manual
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
JP9942583U
Other languages
Japanese (ja)
Other versions
JPH0215423Y2 (en
Inventor
津久井　明三
Original Assignee
日立電子株式会社
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 日立電子株式会社 filed Critical 日立電子株式会社
Priority to JP9942583U priority Critical patent/JPS609377U/en
Publication of JPS609377U publication Critical patent/JPS609377U/en
Application granted granted Critical
Publication of JPH0215423Y2 publication Critical patent/JPH0215423Y2/ja
Granted legal-status Critical Current

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) [Abstract] 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]

第１図は従来の自動絞り装置表自動利得制御増幅器のブ
ロック図、第２図は本考案の一実施例のブロック図であ
る。 １・・・・・・撮像素子、２・・・・・・増幅器、３・
・・・・・検波器、４・・・・・・比較器、５・・・・
・・絞り駆動回路、６・・・・・・絞り、７・・・・・
・増幅器、８・・・・・・検波器、９・・・・・・比較
器、Ａ・・・・・・自動絞り制御装置、Ｂ・・・・・・
自動利得制御増幅器、ＶＲｉ・・・・・・手動絞り設定
調整器、ＶＲｇ・・・・・・利得設定調整器、Ｒ・・・
・・・抵抗。FIG. 1 is a block diagram of a conventional automatic gain control amplifier with an automatic throttle device, and FIG. 2 is a block diagram of an embodiment of the present invention. 1...Image sensor, 2...Amplifier, 3.
...Detector, 4...Comparator, 5...
...Aperture drive circuit, 6...Aperture, 7...
・Amplifier, 8...Detector, 9...Comparator, A...Automatic aperture control device, B...
Automatic gain control amplifier, VRi...Manual aperture setting adjuster, VRg...Gain setting adjuster, R...
···resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被写体の明るさに応じて、レンズ内の絞りを自動的に制
御し、そのときの入射光量に対応する撮像素子から得ら
れる映像信号を適正なレベルに保つ自動絞り装置と、自
動利得制御増幅器とを備えたテレビジョンカメラにおい
て、手動絞り調整時に、この手動絞り設定電圧の変化量
で上記自動利得制御増幅器の利得制御電圧をｉ制御し、
該増幅器の利得を一定に保つことを特徴とした絞りの手
動調節機能を有するテレビジョンカメラ。An automatic aperture device that automatically controls the aperture in the lens according to the brightness of the subject and maintains the video signal obtained from the image sensor at an appropriate level according to the amount of incident light at that time, and an automatic gain control amplifier. In the television camera equipped with the above, when adjusting the manual aperture, the gain control voltage of the automatic gain control amplifier is i-controlled by the amount of change in the manual aperture setting voltage,
A television camera having a manual aperture adjustment function characterized by keeping the gain of the amplifier constant.
JP9942583U 1983-06-29 1983-06-29 tv jiyoung camera Granted JPS609377U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9942583U JPS609377U (en) 1983-06-29 1983-06-29 tv jiyoung camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9942583U JPS609377U (en) 1983-06-29 1983-06-29 tv jiyoung camera

Publications (2)

Publication Number Publication Date
JPS609377U true JPS609377U (en) 1985-01-22
JPH0215423Y2 JPH0215423Y2 (en) 1990-04-25

Family

ID=30235625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9942583U Granted JPS609377U (en) 1983-06-29 1983-06-29 tv jiyoung camera

Country Status (1)

Country Link
JP (1) JPS609377U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626580A (en) * 1985-07-02 1987-01-13 Olympus Optical Co Ltd Picture signal processing circuit
JPS6382067A (en) * 1986-09-25 1988-04-12 Sony Corp Image pickup device
US7894667B2 (en) 2006-12-05 2011-02-22 Canon Kabushiki Kaisha Image processing method and apparatus thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626580A (en) * 1985-07-02 1987-01-13 Olympus Optical Co Ltd Picture signal processing circuit
JPS6382067A (en) * 1986-09-25 1988-04-12 Sony Corp Image pickup device
US7894667B2 (en) 2006-12-05 2011-02-22 Canon Kabushiki Kaisha Image processing method and apparatus thereof

Also Published As

Publication number Publication date
JPH0215423Y2 (en) 1990-04-25

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