DE1772359C3 - - Google Patents

Info

Publication number
DE1772359C3
DE1772359C3 DE1772359A DE1772359A DE1772359C3 DE 1772359 C3 DE1772359 C3 DE 1772359C3 DE 1772359 A DE1772359 A DE 1772359A DE 1772359 A DE1772359 A DE 1772359A DE 1772359 C3 DE1772359 C3 DE 1772359C3
Authority
DE
Germany
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
DE1772359A
Other versions
DE1772359B2 (de
DE1772359A1 (de
Inventor
Hirofumi Okaya Nagano Yoshimura (Japan)
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.)
Yashica Co Ltd
Original Assignee
Yashica 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 Yashica Co Ltd filed Critical Yashica Co Ltd
Publication of DE1772359A1 publication Critical patent/DE1772359A1/de
Publication of DE1772359B2 publication Critical patent/DE1772359B2/de
Application granted granted Critical
Publication of DE1772359C3 publication Critical patent/DE1772359C3/de
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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
    • 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
    • G01J1/44—Electric circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
DE1772359A 1967-05-02 1968-04-30 Transistorisierter Belichtungsmesser Granted DE1772359B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3636367 1967-05-02

Publications (3)

Publication Number Publication Date
DE1772359A1 DE1772359A1 (de) 1972-01-13
DE1772359B2 DE1772359B2 (de) 1974-06-27
DE1772359C3 true DE1772359C3 (de) 1975-02-13

Family

ID=12467734

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1772359A Granted DE1772359B2 (de) 1967-05-02 1968-04-30 Transistorisierter Belichtungsmesser

Country Status (2)

Country Link
US (1) US3581643A (de)
DE (1) DE1772359B2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661062A (en) * 1970-03-20 1972-05-09 Eastman Kodak Co Test circuit for photographic cameras
US3724955A (en) * 1970-07-07 1973-04-03 Yashica Co Ltd Discrimination circuit of physical quantities
US4037232A (en) * 1970-07-31 1977-07-19 Agfa-Gevaert, A.G. Visual exposure indicator in photographic apparatus
US3649128A (en) * 1970-11-27 1972-03-14 Stanley Rothschild System for determining the proper exposure for a photographic surface
GB1347130A (en) * 1970-12-03 1974-02-27 Hattori Tokeiten Kk Cameras
JPS5038332B1 (de) * 1971-05-04 1975-12-09
US3765312A (en) * 1971-05-28 1973-10-16 Canon Kk Exposure control device
JPS4889724A (de) * 1972-02-25 1973-11-22
JPS4970625A (de) * 1972-11-09 1974-07-09
JPS5834424Y2 (ja) * 1973-09-06 1983-08-02 京セラ株式会社 デンキシヤツタカイロ
JPS5164923A (en) * 1974-12-03 1976-06-04 Nippon Kogaku Kk Kamerano roshutsukeino hyojikairo
JPS5218312A (en) * 1975-08-02 1977-02-10 Minolta Camera Co Ltd Display circuit for the camera
US4173401A (en) * 1978-05-15 1979-11-06 Eastman Kodak Company Apparatus for displaying alphanumeric information coded on a film cartridge
JP3276306B2 (ja) * 1997-06-06 2002-04-22 アンリツ株式会社 光測定器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397629A (en) * 1964-06-20 1968-08-20 Citizen Watch Co Ltd Photographic light control means
DE1472663A1 (de) * 1964-10-27 1969-04-24 Yashica Co Ltd Automatischer Belichtungszeitregler mit Anzeige von Aufnahmehelligkeitsgrenzen
US3452656A (en) * 1964-10-31 1969-07-01 Zeiss Ikon Ag Photometer with photoelectric transformer
FR1466805A (fr) * 1966-02-01 1967-01-20 Prontor Werk Alfred Cauthier G Appareil photographique à dispositif compteur de temps commandé en fonction de la luminosité ambiante du moment
CH467445A (de) * 1967-02-25 1969-01-15 Gossen & Co Gmbh P Fotoelektrischer Belichtungsmesser

Also Published As

Publication number Publication date
DE1772359B2 (de) 1974-06-27
DE1772359A1 (de) 1972-01-13
US3581643A (en) 1971-06-01

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EF Willingness to grant licences
EGA New person/name/address of the applicant