JPH0258607B2 - - Google Patents

Info

Publication number
JPH0258607B2
JPH0258607B2 JP55056867A JP5686780A JPH0258607B2 JP H0258607 B2 JPH0258607 B2 JP H0258607B2 JP 55056867 A JP55056867 A JP 55056867A JP 5686780 A JP5686780 A JP 5686780A JP H0258607 B2 JPH0258607 B2 JP H0258607B2
Authority
JP
Japan
Prior art keywords
signal
automatic control
control means
level
circuit
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.)
Expired - Lifetime
Application number
JP55056867A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56153327A (en
Inventor
Kenji Kimura
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP5686780A priority Critical patent/JPS56153327A/ja
Priority to US06/254,299 priority patent/US4409472A/en
Publication of JPS56153327A publication Critical patent/JPS56153327A/ja
Publication of JPH0258607B2 publication Critical patent/JPH0258607B2/ja
Granted 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
    • H04N23/72—Combination of two or more compensation controls

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Control For Cameras (AREA)
JP5686780A 1980-04-28 1980-04-28 Iris servo device Granted JPS56153327A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5686780A JPS56153327A (en) 1980-04-28 1980-04-28 Iris servo device
US06/254,299 US4409472A (en) 1980-04-28 1981-04-15 Iris servo apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5686780A JPS56153327A (en) 1980-04-28 1980-04-28 Iris servo device

Publications (2)

Publication Number Publication Date
JPS56153327A JPS56153327A (en) 1981-11-27
JPH0258607B2 true JPH0258607B2 (en]) 1990-12-10

Family

ID=13039367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5686780A Granted JPS56153327A (en) 1980-04-28 1980-04-28 Iris servo device

Country Status (2)

Country Link
US (1) US4409472A (en])
JP (1) JPS56153327A (en])

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853969A (ja) * 1981-09-28 1983-03-30 Nitto Electric Ind Co Ltd 感圧性接着剤組成物
JPH0760210B2 (ja) * 1983-07-06 1995-06-28 ミノルタ株式会社 カメラの検出装置
JPS6090322A (ja) * 1983-10-22 1985-05-21 Power Reactor & Nuclear Fuel Dev Corp 監視カメラ
JPS60167576A (ja) * 1984-01-31 1985-08-30 Canon Inc 撮像装置
US4833536A (en) * 1984-07-24 1989-05-23 Canon Kabushiki Kaisha Image sensing apparatus with sensitivity and exposure control
US4748506A (en) * 1984-12-28 1988-05-31 Canon Kabushiki Kaisha Image pickup apparatus with excess-charge control
JPH0822030B2 (ja) * 1985-07-10 1996-03-04 旭精密株式会社 テレビカメラ用レンズの自動絞り制御装置
US4889998A (en) * 1987-01-29 1989-12-26 Nikon Corporation Apparatus with four light detectors for checking surface of mask with pellicle
US5272538A (en) * 1987-11-04 1993-12-21 Canon Kabushiki Kaisha Exposure control device
JPH01221986A (ja) * 1988-03-01 1989-09-05 Canon Inc 露光制御装置
KR920011063B1 (ko) * 1990-12-31 1992-12-26 삼성전자 주식회사 카메라의 자동이득 제어회로
US20110234887A1 (en) * 2010-03-25 2011-09-29 Panasonic Corporation Image capture device
US9661234B2 (en) * 2015-07-16 2017-05-23 Pixart Imaging (Penang) Sdn. Bhd. Image processing method and image processing system assigning different gains to different sections

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123724A (en) * 1964-03-03 Photosensitive light control system
US3555181A (en) * 1968-06-05 1971-01-12 Bell Telephone Labor Inc Automatic video level control employing iris and amplifier gain adjustments
NL7701811A (nl) * 1977-02-21 1978-08-23 Philips Nv Televisiekamera voorzien van een diafragma- regeling en een regelbare beeldsignaalver- sterkingsschakeling.
JPS5664567A (en) * 1979-10-29 1981-06-01 Matsushita Electric Ind Co Ltd Automatic control unit for image pickup device

Also Published As

Publication number Publication date
US4409472A (en) 1983-10-11
JPS56153327A (en) 1981-11-27

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