BE671900A - - Google Patents

Info

Publication number
BE671900A
BE671900A BE671900DA BE671900A BE 671900 A BE671900 A BE 671900A BE 671900D A BE671900D A BE 671900DA BE 671900 A BE671900 A BE 671900A
Authority
BE
Belgium
Application number
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 BE671900A publication Critical patent/BE671900A/xx

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
    • G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
    • G01J1/4219—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for enlargers
    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Projection-Type Copiers In General (AREA)
  • Eye Examination Apparatus (AREA)
BE671900D 1964-11-14 1965-11-05 BE671900A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46457/64A GB1085806A (en) 1964-11-14 1964-11-14 Improvements in or relating to enlarging exposure meters and electronic timers

Publications (1)

Publication Number Publication Date
BE671900A true BE671900A (de) 1966-03-01

Family

ID=10441349

Family Applications (1)

Application Number Title Priority Date Filing Date
BE671900D BE671900A (de) 1964-11-14 1965-11-05

Country Status (6)

Country Link
US (1) US3397611A (de)
BE (1) BE671900A (de)
CH (1) CH455518A (de)
DE (1) DE1522789A1 (de)
GB (1) GB1085806A (de)
NL (1) NL6514641A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507591A (en) * 1967-12-28 1970-04-21 Sinjuro Miyachi Apparatus and method for measuring a quantity of light
US3545858A (en) * 1968-03-11 1970-12-08 Warren Childers Photographic timing apparatus responsive to optical density
US3734630A (en) * 1971-09-09 1973-05-22 Logetronics Inc Copy density reading and exposure control system
US3985440A (en) * 1972-03-01 1976-10-12 Hoechst Aktiengesellschaft Process and apparatus for automatic exposure time control in copying devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB529907A (en) * 1939-03-06 1940-12-02 Joseph Mina Bing Improvements in photometric apparatus for timing photographic exposures
US2755704A (en) * 1952-09-18 1956-07-24 Weston Electrical Instr Corp Photographic exposure-determining apparatus
US2794366A (en) * 1956-02-29 1957-06-04 Eastman Kodak Co Automatic exposure control system for photographic printer
US3222983A (en) * 1962-05-16 1965-12-14 Ouchi Satoru Automatic exposure timing means

Also Published As

Publication number Publication date
DE1522789A1 (de) 1969-10-02
US3397611A (en) 1968-08-20
GB1085806A (en) 1967-10-04
NL6514641A (de) 1966-05-16
CH455518A (de) 1968-07-15

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