CA2066022A1 - Exposure control apparatus of camera - Google Patents

Exposure control apparatus of camera

Info

Publication number
CA2066022A1
CA2066022A1 CA2066022A CA2066022A CA2066022A1 CA 2066022 A1 CA2066022 A1 CA 2066022A1 CA 2066022 A CA2066022 A CA 2066022A CA 2066022 A CA2066022 A CA 2066022A CA 2066022 A1 CA2066022 A1 CA 2066022A1
Authority
CA
Canada
Prior art keywords
exposure
camera
control apparatus
factor
factors
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
CA2066022A
Other languages
French (fr)
Other versions
CA2066022C (en
Inventor
Osamu Sato
Satoshi Nakano
Isamu Hirai
Toshiyuki Kitazawa
Takayuki Sensui
Masato Yamamoto
Toshimasa Yamanaka
Takenao Shishikura
Akio Takahashi
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.)
Pentax Corp
Original Assignee
Individual
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
Priority claimed from JP03342151A external-priority patent/JP3103411B2/en
Priority claimed from JP3342133A external-priority patent/JPH0527295A/en
Priority claimed from JP34214691A external-priority patent/JP3199802B2/en
Priority claimed from JP03342128A external-priority patent/JP3140521B2/en
Priority claimed from JP03342167A external-priority patent/JP3103412B2/en
Priority claimed from JP34212791A external-priority patent/JP3164622B2/en
Application filed by Individual filed Critical Individual
Publication of CA2066022A1 publication Critical patent/CA2066022A1/en
Application granted granted Critical
Publication of CA2066022C publication Critical patent/CA2066022C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/097—Digital circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

An exposure control apparatus of a camera having a photometer for detecting the brightness of an object to be taken, an exposure value calculator for calculating an optimum exposure value in accordance with the object brightness, and an exposure factor setting device for setting a pair of exposure factors having a shutter speed and a diaphragm value, including an exposure factor manual setting device, a specific program exposure mode in which the exposure factors corresponding to the optimum exposure values are automatically set, and an exposure factor modifying device for enabling the manual setting means to manually set one of the exposure factors when the manual setting means is actuated in the specific program exposure mode.
CA 2066022 1991-04-15 1992-04-14 Exposure control apparatus of camera Expired - Fee Related CA2066022C (en)

Applications Claiming Priority (24)

Application Number Priority Date Filing Date Title
JP3-173499 1991-04-15
JP3-173500 1991-04-15
JP3-173501 1991-04-15
JP17350191 1991-04-15
JP3-173497 1991-04-15
JP17349791 1991-04-15
JP17349891 1991-04-15
JP17349691 1991-04-15
JP17349991 1991-04-15
JP3-173498 1991-04-15
JP17350091 1991-04-15
JP3-173496 1991-04-15
JP3-342146 1991-11-29
JP3-342127 1991-11-29
JP03342151A JP3103411B2 (en) 1991-04-15 1991-11-29 Camera exposure control device
JP3-342128 1991-11-29
JP3342133A JPH0527295A (en) 1991-04-15 1991-11-29 Exposure controller for camera
JP34214691A JP3199802B2 (en) 1991-04-15 1991-11-29 Camera exposure control device
JP03342128A JP3140521B2 (en) 1991-04-15 1991-11-29 Camera exposure control device
JP3-342133 1991-11-29
JP3-342167 1991-11-29
JP03342167A JP3103412B2 (en) 1991-04-15 1991-11-29 Camera exposure control device
JP34212791A JP3164622B2 (en) 1991-04-15 1991-11-29 Camera exposure control device
JP3-342151 1991-11-29

Publications (2)

Publication Number Publication Date
CA2066022A1 true CA2066022A1 (en) 1992-10-16
CA2066022C CA2066022C (en) 2000-08-15

Family

ID=27583477

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2066022 Expired - Fee Related CA2066022C (en) 1991-04-15 1992-04-14 Exposure control apparatus of camera

Country Status (5)

Country Link
CA (1) CA2066022C (en)
DE (1) DE4212619C2 (en)
GB (1) GB2255649B (en)
HK (1) HK161595A (en)
MY (1) MY108440A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272068B (en) * 1992-10-20 1996-07-31 Asahi Optical Co Ltd Camera with learning function
US5877897A (en) 1993-02-26 1999-03-02 Donnelly Corporation Automatic rearview mirror, vehicle lighting control and vehicle interior monitoring system using a photosensor array
US6822563B2 (en) 1997-09-22 2004-11-23 Donnelly Corporation Vehicle imaging system with accessory control
US6891563B2 (en) 1996-05-22 2005-05-10 Donnelly Corporation Vehicular vision system
US7655894B2 (en) 1996-03-25 2010-02-02 Donnelly Corporation Vehicular image sensing system
AU2003225228A1 (en) 2002-05-03 2003-11-17 Donnelly Corporation Object detection system for vehicle
US7526103B2 (en) 2004-04-15 2009-04-28 Donnelly Corporation Imaging system for vehicle
WO2008024639A2 (en) 2006-08-11 2008-02-28 Donnelly Corporation Automatic headlamp control system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1597269C3 (en) * 1966-08-24 1975-05-15 K.K. Hattori Tokeiten, Tokio Photographic camera
US4137541A (en) * 1974-10-07 1979-01-30 Canon Kabushiki Kaisha Automatic exposure control apparatus for a single lens reflex camera
US4306785A (en) * 1979-02-01 1981-12-22 Asahi Kogaku Kogyo Kabushiki Kaisha Camera exposure time control circuit
JPS5639525A (en) * 1979-09-10 1981-04-15 Canon Inc Exposure control circuit of camera
JPS56121020A (en) * 1980-02-26 1981-09-22 Minolta Camera Co Ltd Exposure controller of camera
JPS57125927A (en) * 1981-01-30 1982-08-05 Nippon Kogaku Kk <Nikon> Camera having automatic exposure controller
JPS58184137A (en) * 1982-04-21 1983-10-27 Olympus Optical Co Ltd Camera
FR2526965B1 (en) * 1982-05-14 1986-08-14 Canon Kk DEVICE FOR SELECTING THE EXPOSURE CONTROL MODE FOR A CAMERA
DE3329053C2 (en) * 1982-08-16 1986-08-21 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Rotary motion control mechanism for the diaphragm setting ring of interchangeable lenses
JPH0823648B2 (en) * 1983-08-11 1996-03-06 株式会社ニコン Camera priority mode setting device
JPS60107836U (en) * 1983-12-20 1985-07-22 キヤノン株式会社 camera external display device
JPS60173526A (en) * 1984-02-20 1985-09-06 Asahi Optical Co Ltd Automatic exposure camera
JPH0785154B2 (en) * 1986-03-14 1995-09-13 オリンパス光学工業株式会社 Camera program exposure characteristic setting method and setting apparatus
US5005033A (en) * 1988-08-01 1991-04-02 Olympus Optical Company, Ltd. Photographing data setting apparatus for camera

Also Published As

Publication number Publication date
DE4212619C2 (en) 1996-08-29
GB2255649B (en) 1995-07-19
DE4212619A1 (en) 1992-10-22
MY108440A (en) 1996-09-30
GB9208330D0 (en) 1992-06-03
CA2066022C (en) 2000-08-15
GB2255649A (en) 1992-11-11
HK161595A (en) 1995-10-27

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20100414