FR2420123A1 - Appareil de detection de la temperature de couleur - Google Patents

Appareil de detection de la temperature de couleur

Info

Publication number
FR2420123A1
FR2420123A1 FR7905656A FR7905656A FR2420123A1 FR 2420123 A1 FR2420123 A1 FR 2420123A1 FR 7905656 A FR7905656 A FR 7905656A FR 7905656 A FR7905656 A FR 7905656A FR 2420123 A1 FR2420123 A1 FR 2420123A1
Authority
FR
France
Prior art keywords
detection device
temperature detection
color temperature
optical filters
elements
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
FR7905656A
Other languages
English (en)
Other versions
FR2420123B1 (fr
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2420123A1 publication Critical patent/FR2420123A1/fr
Application granted granted Critical
Publication of FR2420123B1 publication Critical patent/FR2420123B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Color Television Image Signal Generators (AREA)
  • Radiation Pyrometers (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

a. Appareil de détection de la température de couleur. b. Appareil caractérisé en ce qu'il comporte deux éléments photosensibles ayant une fonction semi-conductrice, ces deux éléments étant branchés en série, en opposition de polarité l'un par rapport à l'autre, ainsi qu'une paire de filtres optiques ayant chacun une caractéristique de spectre déterminée, ces filtres optiques étant placés du côté de la lumière incidente des éléments photosensibles. c. L'invention s'applique notamment aux caméras vidéo.
FR7905656A 1978-03-15 1979-03-05 Appareil de detection de la temperature de couleur Expired FR2420123B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2955478A JPS54122181A (en) 1978-03-15 1978-03-15 Color temperature detector

Publications (2)

Publication Number Publication Date
FR2420123A1 true FR2420123A1 (fr) 1979-10-12
FR2420123B1 FR2420123B1 (fr) 1985-12-20

Family

ID=12279353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905656A Expired FR2420123B1 (fr) 1978-03-15 1979-03-05 Appareil de detection de la temperature de couleur

Country Status (7)

Country Link
US (1) US4281337A (fr)
JP (1) JPS54122181A (fr)
CA (1) CA1150824A (fr)
DE (1) DE2908867A1 (fr)
FR (1) FR2420123B1 (fr)
GB (1) GB2017296B (fr)
NL (1) NL188918C (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857885A (ja) * 1981-10-01 1983-04-06 Nippon Kogaku Kk <Nikon> ホワイトバランス装置
JPS58194488A (ja) * 1982-05-07 1983-11-12 Nippon Kogaku Kk <Nikon> 色バランス調整装置
JPS58215884A (ja) * 1982-06-10 1983-12-15 Sony Corp 電子カメラ
US4595946A (en) * 1983-02-02 1986-06-17 Olympus Optical Company Ltd. White balance control system including a fluorescent light ripple detector
US4590512A (en) * 1983-04-04 1986-05-20 Minolta Camera Kabushiki Kaisha Circuit for detecting the ratio of intensities of the color components of light
JPS60214183A (ja) * 1984-04-09 1985-10-26 Nec Corp カラ−撮像装置
JPH0632441B2 (ja) * 1984-09-11 1994-04-27 ソニー株式会社 ホワイトバランスの自動調整回路
JPS62239028A (ja) * 1986-04-11 1987-10-19 Hamamatsu Photonics Kk 色温度検出装置
US5170069A (en) * 1986-05-21 1992-12-08 Canon Kabushiki Kaisha Image pickup apparatus
US4847680A (en) * 1986-09-24 1989-07-11 Canon Kabushiki Kaisha Image pickup apparatus with white balance control
US4805010A (en) * 1987-05-29 1989-02-14 Eastman Kodak Company Still video camera with common circuit for color balance and exposure control
US4814864A (en) * 1987-05-29 1989-03-21 Eastman Kodak Co. Video camera with automatic prescaling for color balance
US4899212A (en) * 1987-08-28 1990-02-06 Fuji Photo Film Co., Ltd. White balance adjusting device for a camera
WO1994001755A1 (fr) * 1992-07-02 1994-01-20 Michael Fredrick Feasey Procede et dispositif d'etalonnage de moniteurs informatiques utilises dans l'industrie textile et l'imprimerie
JP4288553B2 (ja) 2000-07-25 2009-07-01 富士フイルム株式会社 カメラのストロボ装置
JP2003310554A (ja) * 2002-04-19 2003-11-05 Topcon Corp 眼科撮影装置
EP1535495B1 (fr) * 2002-08-28 2010-01-13 Philips Solid-State Lighting Solutions, Inc. Procedes et systemes pour eclairer des environnements
US7176963B2 (en) * 2003-01-03 2007-02-13 Litton Systems, Inc. Method and system for real-time image fusion
US20080303918A1 (en) * 2007-06-11 2008-12-11 Micron Technology, Inc. Color correcting for ambient light
JP5333964B2 (ja) * 2008-06-27 2013-11-06 株式会社ジャパンディスプレイ 光検出装置、電気光学装置及び電子機器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626088A (en) * 1968-07-11 1971-12-07 Fernseh Gmbh Regulating arrangement for color cameras
US3715922A (en) * 1969-09-20 1973-02-13 Siemens Ag Color pyrometer
DE2445144A1 (de) * 1974-09-20 1976-04-08 Heimann Gmbh Einrichtung zur automatischen farbkorrektur fuer fernsehkameras

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1573222B1 (de) * 1966-12-22 1971-01-14 Inst Plasmaphysik Gmbh Photoelektrisches Verfahren zur Farbtemperaturmessung und Farbtemperatur-Messgeraet zur Durchfuehrung dieses Verfahrens
DE2124959C3 (de) * 1971-05-19 1973-12-06 Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt Verfahren und Einrichtung zum Er kennen von unbunten Anteilen in einem Farbfernsehbild

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626088A (en) * 1968-07-11 1971-12-07 Fernseh Gmbh Regulating arrangement for color cameras
US3715922A (en) * 1969-09-20 1973-02-13 Siemens Ag Color pyrometer
DE2445144A1 (de) * 1974-09-20 1976-04-08 Heimann Gmbh Einrichtung zur automatischen farbkorrektur fuer fernsehkameras

Also Published As

Publication number Publication date
DE2908867A1 (de) 1979-09-27
NL188918C (nl) 1992-11-02
US4281337A (en) 1981-07-28
NL188918B (nl) 1992-06-01
GB2017296A (en) 1979-10-03
JPS54122181A (en) 1979-09-21
GB2017296B (en) 1982-07-21
DE2908867C2 (fr) 1990-04-12
FR2420123B1 (fr) 1985-12-20
JPS615613B2 (fr) 1986-02-20
NL7901980A (nl) 1979-09-18
CA1150824A (fr) 1983-07-26

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Legal Events

Date Code Title Description
ST Notification of lapse