FR1314745A - Posemètre, notamment pour appareil de copie photographique - Google Patents

Posemètre, notamment pour appareil de copie photographique

Info

Publication number
FR1314745A
FR1314745A FR887722A FR887722A FR1314745A FR 1314745 A FR1314745 A FR 1314745A FR 887722 A FR887722 A FR 887722A FR 887722 A FR887722 A FR 887722A FR 1314745 A FR1314745 A FR 1314745A
Authority
FR
France
Prior art keywords
copying apparatus
light meter
photographic copying
photographic
meter
Prior art date
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
FR887722A
Other languages
English (en)
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR1314745A publication Critical patent/FR1314745A/fr
Expired 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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • 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
    • 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
    • G01J1/4223—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for copy - or printing 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus

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)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
FR887722A 1961-02-13 1962-02-12 Posemètre, notamment pour appareil de copie photographique Expired FR1314745A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88886A US3117490A (en) 1961-02-13 1961-02-13 Photographic exposure meter

Publications (1)

Publication Number Publication Date
FR1314745A true FR1314745A (fr) 1963-01-11

Family

ID=22214086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR887722A Expired FR1314745A (fr) 1961-02-13 1962-02-12 Posemètre, notamment pour appareil de copie photographique

Country Status (5)

Country Link
US (1) US3117490A (fr)
CH (1) CH382462A (fr)
DE (1) DE1145908B (fr)
FR (1) FR1314745A (fr)
GB (1) GB938927A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395527A1 (fr) * 1977-03-26 1979-01-19 Klimsch & Co Dispositif de mesure de luminance
FR2447051A1 (fr) * 1979-01-19 1980-08-14 Bockemuehl Johannes Agrandisseur photographique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222983A (en) * 1962-05-16 1965-12-14 Ouchi Satoru Automatic exposure timing means
DE1202633B (de) * 1964-06-03 1965-10-07 Mikrofilm Ges Mit Beschraenkte Verfahren fuer eine selbsttaetige Lichtsteuerung bei Mikrofilm-Aufnahmegeraeten zur Aufnahme von Schriftstuecken, Zeichnungen u. dgl.
US3733485A (en) * 1971-03-18 1973-05-15 Bell & Howell Co Exposure meter for thermal imaging devices
DK156497C (da) * 1984-08-31 1990-01-15 Danagraf As Fremgangsmaade og apparat til styring af et reproduktionskamera

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794222A (en) * 1925-06-19 1931-02-24 Gen Electric Photo-electric system
US2096323A (en) * 1935-10-31 1937-10-19 Honeywell Regulator Co Temperature measuring apparatus
US2353218A (en) * 1941-03-14 1944-07-11 Eastman Kodak Co Photographic printing apparatus
US2794366A (en) * 1956-02-29 1957-06-04 Eastman Kodak Co Automatic exposure control system for photographic printer
DE1110774B (de) * 1958-07-02 1961-07-13 Eastman Kodak Co Einrichtung zur Erzeugung eines elektrischen Stromes in Abhaengigkeit von einer Belichtung
US2968946A (en) * 1958-11-12 1961-01-24 Comptometer Corp Radiation pyrometer
DE1113629B (de) * 1959-03-06 1961-09-07 Zeiss Ikon Ag Photographische Kamera, insbesondere Laufbildaufnahmekamera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395527A1 (fr) * 1977-03-26 1979-01-19 Klimsch & Co Dispositif de mesure de luminance
FR2447051A1 (fr) * 1979-01-19 1980-08-14 Bockemuehl Johannes Agrandisseur photographique

Also Published As

Publication number Publication date
CH382462A (fr) 1964-09-30
US3117490A (en) 1964-01-14
GB938927A (en) 1963-10-09
DE1145908B (de) 1963-03-21

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