JPS4916423A - - Google Patents

Info

Publication number
JPS4916423A
JPS4916423A JP47049861A JP4986172A JPS4916423A JP S4916423 A JPS4916423 A JP S4916423A JP 47049861 A JP47049861 A JP 47049861A JP 4986172 A JP4986172 A JP 4986172A JP S4916423 A JPS4916423 A JP S4916423A
Authority
JP
Japan
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.)
Pending
Application number
JP47049861A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP47049861A priority Critical patent/JPS4916423A/ja
Priority to DE19732326054 priority patent/DE2326054A1/de
Priority to FR7318520A priority patent/FR2199890A5/fr
Publication of JPS4916423A publication Critical patent/JPS4916423A/ja
Priority to US05/577,079 priority patent/US3988750A/en
Pending 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)
JP47049861A 1972-05-22 1972-05-22 Pending JPS4916423A (enrdf_load_stackoverflow)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP47049861A JPS4916423A (enrdf_load_stackoverflow) 1972-05-22 1972-05-22
DE19732326054 DE2326054A1 (de) 1972-05-22 1973-05-22 Belichtungszeit-anzeigegeraet fuer einen kameraverschluss
FR7318520A FR2199890A5 (enrdf_load_stackoverflow) 1972-05-22 1973-05-22
US05/577,079 US3988750A (en) 1972-05-22 1975-05-13 Exposure time indicating device for camera shutter

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
JPS4916423A true JPS4916423A (enrdf_load_stackoverflow) 1974-02-13

Family

ID=12842822

Family Applications (1)

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

Country Status (3)

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

Cited By (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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2009091A1 (de) * 1969-02-26 1970-09-10 Nippon Kogaku K.K., Tokio Automatische Belichtungszeit-Steuervorrichtung für Kameras

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2009091A1 (de) * 1969-02-26 1970-09-10 Nippon Kogaku K.K., Tokio Automatische Belichtungszeit-Steuervorrichtung für Kameras

Cited By (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

Also Published As

Publication number Publication date
FR2199890A5 (enrdf_load_stackoverflow) 1974-04-12
DE2326054A1 (de) 1973-12-13

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