DE1908587B2 - - Google Patents

Info

Publication number
DE1908587B2
DE1908587B2 DE19691908587 DE1908587A DE1908587B2 DE 1908587 B2 DE1908587 B2 DE 1908587B2 DE 19691908587 DE19691908587 DE 19691908587 DE 1908587 A DE1908587 A DE 1908587A DE 1908587 B2 DE1908587 B2 DE 1908587B2
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.)
Withdrawn
Application number
DE19691908587
Other versions
DE1908587A1 (de
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
Publication of DE1908587A1 publication Critical patent/DE1908587A1/de
Publication of DE1908587B2 publication Critical patent/DE1908587B2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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)
DE19691908587 1968-02-21 1969-02-20 Photometrische Einrichtung zur Lichtkontrastmessung Withdrawn DE1908587A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1050368 1968-02-21
JP1050468 1968-02-21

Publications (2)

Publication Number Publication Date
DE1908587A1 DE1908587A1 (de) 1969-09-18
DE1908587B2 true DE1908587B2 (de) 1970-06-25

Family

ID=26345787

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691908587 Withdrawn DE1908587A1 (de) 1968-02-21 1969-02-20 Photometrische Einrichtung zur Lichtkontrastmessung

Country Status (2)

Country Link
US (1) US3582220A (de)
DE (1) DE1908587A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115736B1 (de) * 1971-02-22 1976-05-19
US3889133A (en) * 1972-03-16 1975-06-10 Matsushita Electric Industrial Co Ltd Output-voltage variable device
US3919668A (en) * 1972-10-20 1975-11-11 Matsushita Electric Industrial Co Ltd Device for generating variable voltage
US4447746A (en) * 1981-12-31 1984-05-08 International Business Machines Corporation Digital photodetectors
US7453678B2 (en) * 2004-08-24 2008-11-18 Hamilton Sunstrand Corporation Power interruption system for electronic circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347141A (en) * 1963-07-27 1967-10-17 Asahi Optical Co Ltd Camera shutter control device
US3343043A (en) * 1963-11-06 1967-09-19 Asahi Optical Co Ltd Automatic exposure time control arrangement
CH454605A (fr) * 1967-03-16 1968-04-15 Paillard Sa Photomètre électronique pour appareil de prise de vues

Also Published As

Publication number Publication date
US3582220A (en) 1971-06-01
DE1908587A1 (de) 1969-09-18

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee