JPS51131210A - Video camera - Google Patents

Video camera

Info

Publication number
JPS51131210A
JPS51131210A JP50056530A JP5653075A JPS51131210A JP S51131210 A JPS51131210 A JP S51131210A JP 50056530 A JP50056530 A JP 50056530A JP 5653075 A JP5653075 A JP 5653075A JP S51131210 A JPS51131210 A JP S51131210A
Authority
JP
Japan
Prior art keywords
video camera
black
decreasement
signals
prevent
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
JP50056530A
Other languages
Japanese (ja)
Inventor
Hirohisa Yamaguchi
Yuji Tsuyukuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teac Corp
Original Assignee
Teac Corp
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 Teac Corp filed Critical Teac Corp
Priority to JP50056530A priority Critical patent/JPS51131210A/en
Publication of JPS51131210A publication Critical patent/JPS51131210A/en
Pending legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)

Abstract

PURPOSE: To reduce dark currents by controlling target voltages in order to decrease black level varia tions and to prevent the increase of black shading caused by temperature changes and the decreasement of saturation level of signals in respect to a tube illumination.
COPYRIGHT: (C)1976,JPO&Japio
JP50056530A 1975-05-10 1975-05-10 Video camera Pending JPS51131210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50056530A JPS51131210A (en) 1975-05-10 1975-05-10 Video camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50056530A JPS51131210A (en) 1975-05-10 1975-05-10 Video camera

Publications (1)

Publication Number Publication Date
JPS51131210A true JPS51131210A (en) 1976-11-15

Family

ID=13029643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50056530A Pending JPS51131210A (en) 1975-05-10 1975-05-10 Video camera

Country Status (1)

Country Link
JP (1) JPS51131210A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129522A (en) * 1977-04-18 1978-11-11 Teac Corp Device for forming video signal using low speed scanning camera tube
JPS5488022A (en) * 1977-12-26 1979-07-12 Hitachi Ltd Pre-amplifier for television camera
JPS61109377A (en) * 1984-10-31 1986-05-27 ア−ルシ−エ−　コ−ポレ−ション Video-camera

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558809A (en) * 1967-08-01 1971-01-26 Sony Corp Automatic dark current control system for pickup tubes employing a light inhibiting strip mounted on the pickup tube face plate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558809A (en) * 1967-08-01 1971-01-26 Sony Corp Automatic dark current control system for pickup tubes employing a light inhibiting strip mounted on the pickup tube face plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129522A (en) * 1977-04-18 1978-11-11 Teac Corp Device for forming video signal using low speed scanning camera tube
JPS5488022A (en) * 1977-12-26 1979-07-12 Hitachi Ltd Pre-amplifier for television camera
JPS637072B2 (en) * 1977-12-26 1988-02-15 Hitachi Seisakusho Kk
JPS61109377A (en) * 1984-10-31 1986-05-27 ア−ルシ−エ−　コ−ポレ−ション Video-camera

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