FR2645654A1 - Dispositif de variation de l'angle de reception d'un telemetre d'un appareil photographique en fonction de la focale de l'objectif - Google Patents

Dispositif de variation de l'angle de reception d'un telemetre d'un appareil photographique en fonction de la focale de l'objectif Download PDF

Info

Publication number
FR2645654A1
FR2645654A1 FR9004318A FR9004318A FR2645654A1 FR 2645654 A1 FR2645654 A1 FR 2645654A1 FR 9004318 A FR9004318 A FR 9004318A FR 9004318 A FR9004318 A FR 9004318A FR 2645654 A1 FR2645654 A1 FR 2645654A1
Authority
FR
France
Prior art keywords
angle
light receiver
reception
reception angle
varying
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
FR9004318A
Other languages
English (en)
French (fr)
Other versions
FR2645654B1 (enExample
Inventor
Kimiaki Ogawa
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
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2645654A1 publication Critical patent/FR2645654A1/fr
Application granted granted Critical
Publication of FR2645654B1 publication Critical patent/FR2645654B1/fr
Granted 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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Exposure Control For Cameras (AREA)
  • Lens Barrels (AREA)
FR9004318A 1989-04-05 1990-04-04 Dispositif de variation de l'angle de reception d'un telemetre d'un appareil photographique en fonction de la focale de l'objectif Granted FR2645654A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1086625A JPH02264932A (ja) 1989-04-05 1989-04-05 カメラにおける受光角変更装置

Publications (2)

Publication Number Publication Date
FR2645654A1 true FR2645654A1 (fr) 1990-10-12
FR2645654B1 FR2645654B1 (enExample) 1994-07-13

Family

ID=13892207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9004318A Granted FR2645654A1 (fr) 1989-04-05 1990-04-04 Dispositif de variation de l'angle de reception d'un telemetre d'un appareil photographique en fonction de la focale de l'objectif

Country Status (5)

Country Link
US (1) US5114225A (enExample)
JP (1) JPH02264932A (enExample)
DE (1) DE4011048C2 (enExample)
FR (1) FR2645654A1 (enExample)
GB (1) GB2230103B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04348330A (ja) * 1991-05-21 1992-12-03 Asahi Optical Co Ltd 露光間ズーム制御装置
US5497229A (en) * 1993-05-28 1996-03-05 Asahi Kogaku Kogyo Kabushiki Kaisha Photometering apparatus having a split light receiving device
JP5700436B2 (ja) * 2011-06-07 2015-04-15 株式会社ディスコ 加工装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000281A (en) * 1956-09-26 1961-09-19 Gauthier Gmbh A Photographic camera having automatic exposure setting
DE2751629A1 (de) * 1976-11-18 1978-05-24 West Electric Co Elektronische blitzeinrichtung fuer photoaufnahmen
US4673282A (en) * 1984-08-29 1987-06-16 Minolta Camera Kabushiki Kaisha Electrophotographic copying apparatus
WO1987007038A1 (en) * 1986-05-12 1987-11-19 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
US4777508A (en) * 1985-11-25 1988-10-11 Canon Kabushiki Kaisha Exposure control device for camera of variable focal length type

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091162A (en) * 1962-08-06 1963-05-28 Eastman Kodak Co Zoom photometric system
DE1235023B (de) * 1962-11-07 1967-02-23 Zeiss Ikon Ag Photoelektrische Lichtmesseinrichtung
US4049996A (en) * 1969-03-07 1977-09-20 Ponder & Best, Inc. Control of electronically generated light pulses
DE2039522B1 (de) * 1970-08-08 1972-03-16 Kodak Ag Photographische oder kinematographische Kamera mit Wechselobjektiv und Belichtungsmesser
DE2524665C3 (de) * 1975-06-04 1978-10-05 Balda-Werke Photographische Geraete Und Kunststoff Gmbh & Co Kg, 4980 Buende Kleinstbildkamera mit elektrischer Belichtungssteuerung
US4560267A (en) * 1982-03-26 1985-12-24 Minolta Camera Kabushiki Kaisha Camera system operable by carrying data from a camera accessory to a camera body
US4639111A (en) * 1985-06-21 1987-01-27 Eastman Kodak Company Pseudo format camera with exposure control
JPS6456427A (en) * 1987-08-27 1989-03-03 Asahi Optical Co Ltd Camera with zoom lens and illuminating angle variable stroboscope
JPH0666023B2 (ja) * 1987-09-14 1994-08-24 旭光学工業株式会社 ズームレンズおよび照射角可変ストロボ装置を備えたカメラ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000281A (en) * 1956-09-26 1961-09-19 Gauthier Gmbh A Photographic camera having automatic exposure setting
DE2751629A1 (de) * 1976-11-18 1978-05-24 West Electric Co Elektronische blitzeinrichtung fuer photoaufnahmen
US4673282A (en) * 1984-08-29 1987-06-16 Minolta Camera Kabushiki Kaisha Electrophotographic copying apparatus
US4777508A (en) * 1985-11-25 1988-10-11 Canon Kabushiki Kaisha Exposure control device for camera of variable focal length type
WO1987007038A1 (en) * 1986-05-12 1987-11-19 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens

Also Published As

Publication number Publication date
GB2230103B (en) 1993-10-06
GB9007367D0 (en) 1990-05-30
DE4011048C2 (de) 1994-03-31
DE4011048A1 (de) 1990-10-11
US5114225A (en) 1992-05-19
FR2645654B1 (enExample) 1994-07-13
JPH02264932A (ja) 1990-10-29
GB2230103A (en) 1990-10-10

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20061230