DE69022711D1 - Einrichtung zur Regelung der Lichtmenge. - Google Patents

Einrichtung zur Regelung der Lichtmenge.

Info

Publication number
DE69022711D1
DE69022711D1 DE69022711T DE69022711T DE69022711D1 DE 69022711 D1 DE69022711 D1 DE 69022711D1 DE 69022711 T DE69022711 T DE 69022711T DE 69022711 T DE69022711 T DE 69022711T DE 69022711 D1 DE69022711 D1 DE 69022711D1
Authority
DE
Germany
Prior art keywords
regulating
light
amount
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
DE69022711T
Other languages
English (en)
Other versions
DE69022711T2 (de
Inventor
Osamu 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.)
Canon Electronics Inc
Original Assignee
Canon Electronics Inc
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 Canon Electronics Inc filed Critical Canon Electronics Inc
Application granted granted Critical
Publication of DE69022711D1 publication Critical patent/DE69022711D1/de
Publication of DE69022711T2 publication Critical patent/DE69022711T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
DE69022711T 1989-12-12 1990-12-11 Einrichtung zur Regelung der Lichtmenge. Expired - Lifetime DE69022711T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1322024A JP2520491B2 (ja) 1989-12-12 1989-12-12 光学機器

Publications (2)

Publication Number Publication Date
DE69022711D1 true DE69022711D1 (de) 1995-11-02
DE69022711T2 DE69022711T2 (de) 1996-04-11

Family

ID=18139070

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022711T Expired - Lifetime DE69022711T2 (de) 1989-12-12 1990-12-11 Einrichtung zur Regelung der Lichtmenge.

Country Status (5)

Country Link
US (1) US5196940A (de)
EP (1) EP0440927B1 (de)
JP (1) JP2520491B2 (de)
CA (1) CA2031905C (de)
DE (1) DE69022711T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3364945B2 (ja) * 1992-01-31 2003-01-08 ソニー株式会社 手振れ補正装置及び手振れ補正方法
DE4243279A1 (de) * 1992-12-21 1994-06-23 Bayer Ag Substituierte Triole
US5705873A (en) * 1993-12-22 1998-01-06 Canon Denshi Kabushiki Kaisha Light-quantity control device
JPH07295023A (ja) * 1994-04-22 1995-11-10 Nikon Corp カメラの絞り制御装置
US20050226612A1 (en) * 2004-04-08 2005-10-13 Asia Optical Co., Inc. Automatic diaphragm assembly with a variable aperture for a lens
WO2017043884A1 (ko) * 2015-09-08 2017-03-16 엘지이노텍(주) 렌즈 구동 장치, 및 이를 포함하는 카메라 모듈 및 광학 기기

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4859318A (de) * 1971-11-29 1973-08-20
US3995208A (en) * 1975-04-25 1976-11-30 Parr Robert L Control circuit
DE2518675B2 (de) * 1975-04-26 1977-07-28 Braun Ag, 6000 Frankfurt Belichtungsregler fuer filmkameras
JPS545298A (en) * 1977-06-13 1979-01-16 Ikeda Matsuhisa Device for cutting log
JPS55105479A (en) * 1979-02-06 1980-08-13 Sony Corp Automatic diaphragm device
JPS5643629A (en) * 1979-09-18 1981-04-22 Olympus Optical Co Ltd Diaphragm control unit
US4325614A (en) * 1980-12-16 1982-04-20 Polaroid Corporation Exposure control system with shutter operation controlled by a microcomputer
JPS6051374A (ja) * 1983-08-30 1985-03-22 Sharp Corp 固体撮像装置
US4651068A (en) * 1984-10-01 1987-03-17 Electro-Craft Corporation Brushless motor control circuitry with optimum current vector control
JPS6238084A (ja) * 1985-08-12 1987-02-19 Matsushita Electric Ind Co Ltd 自動光量調節装置
JPH01123236A (ja) * 1987-11-09 1989-05-16 Konica Corp 自動現像機
JPH0215248A (ja) * 1988-07-04 1990-01-18 Seikosha Co Ltd カメラの自動焦点調節装置
JPH02105121A (ja) * 1988-10-14 1990-04-17 Olympus Optical Co Ltd 絞り制御装置
US5049997A (en) * 1989-04-10 1991-09-17 Fuji Photo Film Co., Ltd. Video camera exposure control method and apparatus for preventing improper exposure due to changing object size or displacement and luminance difference between the object and background

Also Published As

Publication number Publication date
EP0440927B1 (de) 1995-09-27
EP0440927A2 (de) 1991-08-14
US5196940A (en) 1993-03-23
CA2031905A1 (en) 1991-06-13
DE69022711T2 (de) 1996-04-11
CA2031905C (en) 1996-04-30
JPH03181921A (ja) 1991-08-07
JP2520491B2 (ja) 1996-07-31
EP0440927A3 (en) 1991-12-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition