JPS59169164U - TV camera sensitivity control device - Google Patents

TV camera sensitivity control device

Info

Publication number
JPS59169164U
JPS59169164U JP6293083U JP6293083U JPS59169164U JP S59169164 U JPS59169164 U JP S59169164U JP 6293083 U JP6293083 U JP 6293083U JP 6293083 U JP6293083 U JP 6293083U JP S59169164 U JPS59169164 U JP S59169164U
Authority
JP
Japan
Prior art keywords
control device
sensitivity control
video signal
camera sensitivity
television 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.)
Pending
Application number
JP6293083U
Other languages
Japanese (ja)
Inventor
入沢　久仁男
晃 石田
Original Assignee
マミヤ光機株式会社
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 マミヤ光機株式会社 filed Critical マミヤ光機株式会社
Priority to JP6293083U priority Critical patent/JPS59169164U/en
Publication of JPS59169164U publication Critical patent/JPS59169164U/en
Pending 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図は従来のテレビカメラの感度制御装置の構成を示
すブロック線図、第２図は本考案の一実施例を示すブロ
ック線図、第３図は第２図の実施例の要部を具体的に示
した回路図、第４図は第２図および第３図の回路各部の
信号波形を示すタイムチャートである。 １０・・・クリッピング回路、Ｅｃ８．Ｅｃｏ・・・ク
リップレベル、Ｅ、・・・標準レベル。Fig. 1 is a block diagram showing the configuration of a conventional sensitivity control device for a television camera, Fig. 2 is a block diagram showing an embodiment of the present invention, and Fig. 3 shows the main parts of the embodiment of Fig. 2. The specifically illustrated circuit diagram, FIG. 4, is a time chart showing signal waveforms at various parts of the circuits shown in FIGS. 2 and 3. 10... Clipping circuit, Ec8. Eco...Clip level, E...Standard level.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] °　撮像手段によって被写体を撮影することにより取出
した映像信号の平均レベルを求め、この平均レベルが標
準レベルに対していかなる関係にあるかに応じて前記撮
像手段の感度を制御するようにしたテレビカメラの感度
制御装置において、前記映像信号中の極端に明るい部分
または−暗い部分の少くとも一方をクリップする回路を
そなえ、このクリップ回路の出力を映像信号に代えて用
いるようにしたことを特徴とするテレビカメラの感度制
御装置。° A television camera that obtains the average level of a video signal extracted by photographing a subject with an imaging means, and controls the sensitivity of the imaging means according to the relationship between this average level and a standard level. The sensitivity control device is characterized in that it includes a circuit that clips at least one of extremely bright parts or extremely dark parts of the video signal, and the output of this clipping circuit is used in place of the video signal. Television camera sensitivity control device.
JP6293083U 1983-04-28 1983-04-28 TV camera sensitivity control device Pending JPS59169164U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6293083U JPS59169164U (en) 1983-04-28 1983-04-28 TV camera sensitivity control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6293083U JPS59169164U (en) 1983-04-28 1983-04-28 TV camera sensitivity control device

Publications (1)

Publication Number Publication Date
JPS59169164U true JPS59169164U (en) 1984-11-12

Family

ID=30193120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6293083U Pending JPS59169164U (en) 1983-04-28 1983-04-28 TV camera sensitivity control device

Country Status (1)

Country Link
JP (1) JPS59169164U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03108882A (en) * 1989-06-07 1991-05-09 Olympus Optical Co Ltd Photometric circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524115A (en) * 1975-06-30 1977-01-13 Nippon Telegr & Teleph Corp <Ntt> Automatic sensitivity control system of tv camera

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524115A (en) * 1975-06-30 1977-01-13 Nippon Telegr & Teleph Corp <Ntt> Automatic sensitivity control system of tv camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03108882A (en) * 1989-06-07 1991-05-09 Olympus Optical Co Ltd Photometric circuit

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