JPS5528627A - Automatic white balance system in color pick up unit - Google Patents

Automatic white balance system in color pick up unit

Info

Publication number
JPS5528627A
JPS5528627A JP10181578A JP10181578A JPS5528627A JP S5528627 A JPS5528627 A JP S5528627A JP 10181578 A JP10181578 A JP 10181578A JP 10181578 A JP10181578 A JP 10181578A JP S5528627 A JPS5528627 A JP S5528627A
Authority
JP
Japan
Prior art keywords
white balance
ratio
light incident
photo electric
color
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
JP10181578A
Other languages
Japanese (ja)
Inventor
Nobutoshi Sakuraba
Masami Kiuchi
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP10181578A priority Critical patent/JPS5528627A/en
Publication of JPS5528627A publication Critical patent/JPS5528627A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To obtain automatically the suited white balance at all times, by the ratio of the photo electric conversion element outputs of two colors taking light widely.
CONSTITUTION: The light incident from a broad range including the light incident to the optical system 1 passes through the wide lens 18 and is separated into two color components by the color filters 19, and 20, and they are converted into electric amount with the photo electric converters 21 and 22. The light incident to the wide lens 18 is from a broad range. Although the light component at a reference color temperature can be regarded as the same amount, if the color temperature is shifted, the ratio of outputs from the photo electric conversion elements 21 and 22 is changed. Thus, the memory controller 23 detects and processes the ration of output to produce the control signal based on the ratio of output given in advance depending on the shift of the white balance and to control the gain of the chroma signal amplifiers 8,9,10, allowing to keep the white balance.
COPYRIGHT: (C)1980,JPO&Japio
JP10181578A 1978-08-23 1978-08-23 Automatic white balance system in color pick up unit Pending JPS5528627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10181578A JPS5528627A (en) 1978-08-23 1978-08-23 Automatic white balance system in color pick up unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10181578A JPS5528627A (en) 1978-08-23 1978-08-23 Automatic white balance system in color pick up unit

Publications (1)

Publication Number Publication Date
JPS5528627A true JPS5528627A (en) 1980-02-29

Family

ID=14310613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10181578A Pending JPS5528627A (en) 1978-08-23 1978-08-23 Automatic white balance system in color pick up unit

Country Status (1)

Country Link
JP (1) JPS5528627A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155888A (en) * 1981-03-23 1982-09-27 Sony Corp Auto white balancing circuit
JPS57193193A (en) * 1981-05-25 1982-11-27 Hitachi Denshi Ltd Automatic registration compensating method of color television camera
JPS58215884A (en) * 1982-06-10 1983-12-15 Sony Corp Electronic camera
JPS59174084A (en) * 1983-03-24 1984-10-02 Hitachi Ltd Color video camera
JPS6185982U (en) * 1984-11-12 1986-06-05
JPH0263295A (en) * 1988-08-29 1990-03-02 Sony Corp White balance adjustment circuit
US5185658A (en) * 1990-02-05 1993-02-09 Mitsubishi Denki Kabushiki Kaisha Automatic white balance regulating device with exposure detecting optical sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4116011Y1 (en) * 1966-04-01 1966-07-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4116011Y1 (en) * 1966-04-01 1966-07-26

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155888A (en) * 1981-03-23 1982-09-27 Sony Corp Auto white balancing circuit
JPH0230230B2 (en) * 1981-03-23 1990-07-05 Sony Corp
JPS57193193A (en) * 1981-05-25 1982-11-27 Hitachi Denshi Ltd Automatic registration compensating method of color television camera
JPS58215884A (en) * 1982-06-10 1983-12-15 Sony Corp Electronic camera
JPS59174084A (en) * 1983-03-24 1984-10-02 Hitachi Ltd Color video camera
JPH026473B2 (en) * 1983-03-24 1990-02-09 Hitachi Ltd
JPS6185982U (en) * 1984-11-12 1986-06-05
JPH0263295A (en) * 1988-08-29 1990-03-02 Sony Corp White balance adjustment circuit
US5185658A (en) * 1990-02-05 1993-02-09 Mitsubishi Denki Kabushiki Kaisha Automatic white balance regulating device with exposure detecting optical sensor
US5298980A (en) * 1990-02-05 1994-03-29 Mitsubishi Denki Kabushiki Kaisha Automatic white balance regulating device with exposure detecting optical sensor

Similar Documents

Publication Publication Date Title
JPS5735492A (en) Image pickup device
JPS5528627A (en) Automatic white balance system in color pick up unit
JPS564993A (en) White balance regulator of color video camera
JPS5745516A (en) Color image detector
JPS5530265A (en) Color television camera unit
JPS5555685A (en) Color solidstate pick up unit
JPS56147578A (en) Correction system of mixed color for solidstate color image pickup device
JPS55162671A (en) Drive method of solidstate image sensor
JPS5293234A (en) Color separation optic for color television camera
JPS5578673A (en) Facsimile transmitter
JPS6152885U (en)
JPS55165084A (en) Color separation filter for solid-state pickup color camera
JPS5525243A (en) Color temperature correction device
JPS52131488A (en) High-performance photoelectric conversion
JPS5393722A (en) Driving circuit for charge storage type photoelectric converter element
JPS5517149A (en) Light signal branching circuit with monitor
SU140825A1 (en) Color correction method for color television transmission
JPS6477182A (en) Colour image sensor
JPS6468089A (en) Color image reader
JPS6446390A (en) Color image pickup device
JPS51131210A (en) Video camera
JPS5726828A (en) Television camera
JPS5373916A (en) Solid image pickup device
JPS53131830A (en) Camera for photographing welding arc phenomenon
JPS5580981A (en) Optical device for color television camera