FR2633735A1 - - Google Patents

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Publication number
FR2633735A1
FR2633735A1 FR8908785A FR8908785A FR2633735A1 FR 2633735 A1 FR2633735 A1 FR 2633735A1 FR 8908785 A FR8908785 A FR 8908785A FR 8908785 A FR8908785 A FR 8908785A FR 2633735 A1 FR2633735 A1 FR 2633735A1
Authority
FR
France
Prior art keywords
time interval
duration
distance
information
period
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
FR8908785A
Other languages
English (en)
French (fr)
Other versions
FR2633735B1 (en, 2012
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 FR2633735A1 publication Critical patent/FR2633735A1/fr
Application granted granted Critical
Publication of FR2633735B1 publication Critical patent/FR2633735B1/fr
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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • 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
    • G03B43/00—Testing correct operation of photographic apparatus or parts thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Stroboscope Apparatuses (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
FR8908785A 1988-06-30 1989-06-30 Expired - Fee Related FR2633735B1 (en, 2012)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988087122U JP2536236Y2 (ja) 1988-06-30 1988-06-30 カメラの表示装置およびカメラの検査治具

Publications (2)

Publication Number Publication Date
FR2633735A1 true FR2633735A1 (en, 2012) 1990-01-05
FR2633735B1 FR2633735B1 (en, 2012) 1993-05-07

Family

ID=13906152

Family Applications (2)

Application Number Title Priority Date Filing Date
FR8908785A Expired - Fee Related FR2633735B1 (en, 2012) 1988-06-30 1989-06-30
FR9210790A Granted FR2681154A1 (fr) 1988-06-30 1992-09-10 Appareil de photographie, notamment autofocus, et procede pour verifier une valeur detectee par un tel appareil.

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR9210790A Granted FR2681154A1 (fr) 1988-06-30 1992-09-10 Appareil de photographie, notamment autofocus, et procede pour verifier une valeur detectee par un tel appareil.

Country Status (4)

Country Link
JP (1) JP2536236Y2 (en, 2012)
DE (1) DE3921643C2 (en, 2012)
FR (2) FR2633735B1 (en, 2012)
GB (1) GB2221114B (en, 2012)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411508A (en) * 1980-08-19 1983-10-25 Canon Kabushiki Kaisha Annunciator for a focus adjusting device
US4597659A (en) * 1983-05-26 1986-07-01 Canon Kabushiki Kaisha In-focus state display device for camera
US4711547A (en) * 1984-11-28 1987-12-08 Canon Kabushiki Kaisha Display device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345233A (en) * 1976-10-05 1978-04-22 Asahi Optical Co Ltd Device for manually setting digital electric control camera
GB2020051B (en) * 1978-04-25 1982-06-30 Polaroid Corp Cameras with rangefinders
JPS55110229A (en) * 1979-02-16 1980-08-25 Asahi Optical Co Ltd Automatic focus indicator of camera
JPS57196221A (en) * 1981-05-28 1982-12-02 Asahi Optical Co Ltd Warning display mechanism for photographic information of camera
US4462669A (en) * 1981-08-18 1984-07-31 Canon Kabushiki Kaisha Self-timer device for camera
JPS59116729A (ja) * 1982-12-24 1984-07-05 Sanpack:Kk 撮影用光源
GB2170320B (en) * 1984-12-28 1988-12-21 Canon Kk Camera system
GB2180074B (en) * 1985-09-06 1989-08-16 Asahi Optical Co Ltd Digital data output from a camera
JPS6258233A (ja) * 1985-09-09 1987-03-13 Fuji Photo Optical Co Ltd カメラの作動表示装置
JPH06329741A (ja) * 1993-05-26 1994-11-29 Nippon Kayaku Co Ltd 樹脂、エポキシ樹脂及びその製造法、樹脂組成物及びその硬化物

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411508A (en) * 1980-08-19 1983-10-25 Canon Kabushiki Kaisha Annunciator for a focus adjusting device
US4597659A (en) * 1983-05-26 1986-07-01 Canon Kabushiki Kaisha In-focus state display device for camera
US4711547A (en) * 1984-11-28 1987-12-08 Canon Kabushiki Kaisha Display device

Also Published As

Publication number Publication date
GB2221114B (en) 1993-02-17
DE3921643C2 (de) 2001-02-15
FR2681154A1 (fr) 1993-03-12
DE3921643A1 (de) 1990-01-11
FR2633735B1 (en, 2012) 1993-05-07
JP2536236Y2 (ja) 1997-05-21
GB2221114A (en) 1990-01-24
JPH027638U (en, 2012) 1990-01-18
FR2681154B1 (en, 2012) 1994-12-02

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Legal Events

Date Code Title Description
ST Notification of lapse