FR2199890A5 - - Google Patents

Info

Publication number
FR2199890A5
FR2199890A5 FR7318520A FR7318520A FR2199890A5 FR 2199890 A5 FR2199890 A5 FR 2199890A5 FR 7318520 A FR7318520 A FR 7318520A FR 7318520 A FR7318520 A FR 7318520A FR 2199890 A5 FR2199890 A5 FR 2199890A5
Authority
FR
France
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
Application number
FR7318520A
Other languages
French (fr)
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.)
Seiko Koki KK
Original Assignee
Seiko Koki KK
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 Seiko Koki KK filed Critical Seiko Koki KK
Application granted granted Critical
Publication of FR2199890A5 publication Critical patent/FR2199890A5/fr
Expired 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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
    • G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutter-Related Mechanisms (AREA)
FR7318520A 1972-05-22 1973-05-22 Expired FR2199890A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47049861A JPS4916423A (enrdf_load_stackoverflow) 1972-05-22 1972-05-22

Publications (1)

Publication Number Publication Date
FR2199890A5 true FR2199890A5 (enrdf_load_stackoverflow) 1974-04-12

Family

ID=12842822

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7318520A Expired FR2199890A5 (enrdf_load_stackoverflow) 1972-05-22 1973-05-22

Country Status (3)

Country Link
JP (1) JPS4916423A (enrdf_load_stackoverflow)
DE (1) DE2326054A1 (enrdf_load_stackoverflow)
FR (1) FR2199890A5 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668654A (en) * 1985-05-16 1987-05-26 Phillips Petroleum Company Nickel-cerium oxide-zirconium oxide-silica catalysts for hydrogenation of succinic anhydride to butyrolactone

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE354128B (enrdf_load_stackoverflow) * 1969-02-26 1973-02-26 Nippon Kogaku Kk

Also Published As

Publication number Publication date
JPS4916423A (enrdf_load_stackoverflow) 1974-02-13
DE2326054A1 (de) 1973-12-13

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Legal Events

Date Code Title Description
ST Notification of lapse