JPS55121778A - Automatic controller for sensitivity of television camera - Google Patents

Automatic controller for sensitivity of television camera

Info

Publication number
JPS55121778A
JPS55121778A JP2897779A JP2897779A JPS55121778A JP S55121778 A JPS55121778 A JP S55121778A JP 2897779 A JP2897779 A JP 2897779A JP 2897779 A JP2897779 A JP 2897779A JP S55121778 A JPS55121778 A JP S55121778A
Authority
JP
Japan
Prior art keywords
control
sensitivity
give
supplied
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
JP2897779A
Other languages
English (en)
Inventor
Toyotaka Machida
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP2897779A priority Critical patent/JPS55121778A/ja
Priority to US06/128,876 priority patent/US4318132A/en
Priority to GB8008186A priority patent/GB2052912B/en
Priority to FR8005373A priority patent/FR2451684A1/fr
Priority to DE3009507A priority patent/DE3009507C2/de
Publication of JPS55121778A publication Critical patent/JPS55121778A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/71—Circuitry for evaluating the brightness variation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
JP2897779A 1979-03-13 1979-03-13 Automatic controller for sensitivity of television camera Pending JPS55121778A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2897779A JPS55121778A (en) 1979-03-13 1979-03-13 Automatic controller for sensitivity of television camera
US06/128,876 US4318132A (en) 1979-03-13 1980-03-10 Automatic exposure control apparatus for television cameras
GB8008186A GB2052912B (en) 1979-03-13 1980-03-11 Automatic exposure control apparatus for television cameras
FR8005373A FR2451684A1 (fr) 1979-03-13 1980-03-11 Appareil de controle automatique d'exposition pour cameras de television
DE3009507A DE3009507C2 (de) 1979-03-13 1980-03-12 Einrichtung zur automatischen Regelung der Belichtung für eine Fernsehkamera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2897779A JPS55121778A (en) 1979-03-13 1979-03-13 Automatic controller for sensitivity of television camera

Publications (1)

Publication Number Publication Date
JPS55121778A true JPS55121778A (en) 1980-09-19

Family

ID=12263470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2897779A Pending JPS55121778A (en) 1979-03-13 1979-03-13 Automatic controller for sensitivity of television camera

Country Status (5)

Country Link
US (1) US4318132A (ja)
JP (1) JPS55121778A (ja)
DE (1) DE3009507C2 (ja)
FR (1) FR2451684A1 (ja)
GB (1) GB2052912B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119285A (ja) * 1984-07-06 1986-01-28 Hitachi Ltd ビデオカメラのアイリス制御方法
JPH0353082U (ja) * 1989-09-29 1991-05-22

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56104579A (en) * 1980-01-23 1981-08-20 Nec Corp Television camera device
JPS56119820A (en) * 1980-02-27 1981-09-19 Canon Inc Photometric system
JPS5741079A (en) * 1980-08-26 1982-03-06 Asahi Optical Co Ltd Automatic television camera exposure device by division of picture
JPS5783971A (en) * 1980-11-13 1982-05-26 Asahi Optical Co Ltd Spot exposure control circuit
JP2501782B2 (ja) * 1983-09-16 1996-05-29 株式会社ニコン 画像走査装置
US4581648A (en) * 1984-06-07 1986-04-08 Lenzar Optics Corporation Video camera system
US4599654A (en) * 1984-10-31 1986-07-08 Rca Corporation Dark current eliminator useful for auto-iris controller
FR2586151B1 (fr) * 1985-08-06 1988-07-15 Thomson Csf Dispositif de commande automatique de reglage de l'eclairement pour systemes de prise de vues de television
JPH07299029A (ja) * 1994-03-11 1995-11-14 Olympus Optical Co Ltd 内視鏡装置
KR19980020968A (ko) * 1996-09-13 1998-06-25 구자홍 영상표시기기의 휘도조정장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944771A (ja) * 1972-08-31 1974-04-27

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445590A (en) * 1965-03-19 1969-05-20 Rca Corp Coordinated sensitivity and amplification control system
US3555181A (en) * 1968-06-05 1971-01-12 Bell Telephone Labor Inc Automatic video level control employing iris and amplifier gain adjustments
AT329652B (de) * 1974-11-13 1976-05-25 Eumig Verfahren zur steuerung einer fernsehkamera

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944771A (ja) * 1972-08-31 1974-04-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119285A (ja) * 1984-07-06 1986-01-28 Hitachi Ltd ビデオカメラのアイリス制御方法
JPH0353082U (ja) * 1989-09-29 1991-05-22

Also Published As

Publication number Publication date
FR2451684A1 (fr) 1980-10-10
US4318132A (en) 1982-03-02
DE3009507C2 (de) 1984-01-05
FR2451684B1 (ja) 1984-12-14
GB2052912A (en) 1981-01-28
DE3009507A1 (de) 1980-09-18
GB2052912B (en) 1983-04-27

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