JPS54105429A - Color-television pickup unit - Google Patents

Color-television pickup unit

Info

Publication number
JPS54105429A
JPS54105429A JP1192878A JP1192878A JPS54105429A JP S54105429 A JPS54105429 A JP S54105429A JP 1192878 A JP1192878 A JP 1192878A JP 1192878 A JP1192878 A JP 1192878A JP S54105429 A JPS54105429 A JP S54105429A
Authority
JP
Japan
Prior art keywords
color
resistance
light source
illuminating light
target voltage
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
JP1192878A
Other languages
Japanese (ja)
Other versions
JPS5810034B2 (en
Inventor
Itsumi Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP53011928A priority Critical patent/JPS5810034B2/en
Publication of JPS54105429A publication Critical patent/JPS54105429A/en
Publication of JPS5810034B2 publication Critical patent/JPS5810034B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Color Television Image Signal Generators (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To make it possible to obtain the same pickup-tube output as that at an initial adjustment time, by varying a target voltage according to the color temperature of an illuminating light source.
CONSTITUTION: Color output signals R, G and BB of electrode-divided pickup tube 51 are applied to color coder 53 through pre-amplifiers 52R, 52G and 52B to be made into a color signal. Targets TR, TG and TB of the pickup tube are applied with target voltage VT through an adjustment resistance and load resistance. Between terminals 55R and 55B, variable resistance 58 is connected and the middle terminal is supplied with target voltage VT. Consequently, the control voltage of targets TR and TB can be varied differentially. The color balance of the color temperature of the illuminating light source is adjusted previously by resistances 56G, 56R and 56B, so that when the color temperature of the illuminating light source changes, the color balance can be adjusted only by resistance 58.
COPYRIGHT: (C)1979,JPO&Japio
JP53011928A 1978-02-07 1978-02-07 color television imaging device Expired JPS5810034B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53011928A JPS5810034B2 (en) 1978-02-07 1978-02-07 color television imaging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53011928A JPS5810034B2 (en) 1978-02-07 1978-02-07 color television imaging device

Publications (2)

Publication Number Publication Date
JPS54105429A true JPS54105429A (en) 1979-08-18
JPS5810034B2 JPS5810034B2 (en) 1983-02-23

Family

ID=11791328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53011928A Expired JPS5810034B2 (en) 1978-02-07 1978-02-07 color television imaging device

Country Status (1)

Country Link
JP (1) JPS5810034B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561527A (en) * 1983-01-31 1985-12-31 Mazda Motor Corporation Electric parking brake system for a vehicle
US4629043A (en) * 1983-01-31 1986-12-16 Mazda Motor Corporation Electric parking brake system for a vehicle
US4860093A (en) * 1987-01-14 1989-08-22 Hitachi, Ltd. Method and apparatus for driving a plurality of pick-up tubes having their cathodes supplied by a common negative potential

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561527A (en) * 1983-01-31 1985-12-31 Mazda Motor Corporation Electric parking brake system for a vehicle
US4629043A (en) * 1983-01-31 1986-12-16 Mazda Motor Corporation Electric parking brake system for a vehicle
US4860093A (en) * 1987-01-14 1989-08-22 Hitachi, Ltd. Method and apparatus for driving a plurality of pick-up tubes having their cathodes supplied by a common negative potential

Also Published As

Publication number Publication date
JPS5810034B2 (en) 1983-02-23

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