DD106479A1 - - Google Patents

Info

Publication number
DD106479A1
DD106479A1 DD172757A DD17275773A DD106479A1 DD 106479 A1 DD106479 A1 DD 106479A1 DD 172757 A DD172757 A DD 172757A DD 17275773 A DD17275773 A DD 17275773A DD 106479 A1 DD106479 A1 DD 106479A1
Authority
DD
German Democratic Republic
Application number
DD172757A
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 DD172757A priority Critical patent/DD106479A1/xx
Priority to GB2195074A priority patent/GB1439096A/en
Publication of DD106479A1 publication Critical patent/DD106479A1/xx
Priority to US05/482,095 priority patent/US3947112A/en
Priority to DE19747425152U priority patent/DE7425152U/de
Priority to DE2435530A priority patent/DE2435530A1/de
Priority to FR7427121A priority patent/FR2240444B1/fr

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
    • G01J1/4223—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for copy - or printing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
DD172757A 1973-08-08 1973-08-08 DD106479A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DD172757A DD106479A1 (fr) 1973-08-08 1973-08-08
GB2195074A GB1439096A (en) 1973-08-08 1974-05-17 Device for document filming
US05/482,095 US3947112A (en) 1973-08-08 1974-06-24 Device for document filming
DE19747425152U DE7425152U (de) 1973-08-08 1974-07-24 Belichtungsmessvorrichtung fuer kameras zur dokumentenverfilmung
DE2435530A DE2435530A1 (de) 1973-08-08 1974-07-24 Belichtungsmessvorrichtung fuer kameras zur dokumentenverfilmung
FR7427121A FR2240444B1 (fr) 1973-08-08 1974-08-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD172757A DD106479A1 (fr) 1973-08-08 1973-08-08

Publications (1)

Publication Number Publication Date
DD106479A1 true DD106479A1 (fr) 1974-06-12

Family

ID=5492346

Family Applications (1)

Application Number Title Priority Date Filing Date
DD172757A DD106479A1 (fr) 1973-08-08 1973-08-08

Country Status (5)

Country Link
US (1) US3947112A (fr)
DD (1) DD106479A1 (fr)
DE (2) DE7425152U (fr)
FR (1) FR2240444B1 (fr)
GB (1) GB1439096A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026403A1 (fr) * 1979-09-26 1981-04-08 Agfa-Gevaert AG Dispositif de prise de vues en continu pour microfilm

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439308A1 (de) * 1974-08-16 1976-02-26 Hoechst Ag Verfahren und vorrichtung zur steuerung der belichtungszeit in mikrofilmrueckvergroesserungsgeraeten
JPS51114935A (en) * 1975-04-01 1976-10-09 K I P:Kk Electronic copying machine projection equipment
US4025190A (en) * 1976-02-11 1977-05-24 Marshall Hughes Exposure control system for photographic copying
JPS536019A (en) * 1976-07-06 1978-01-20 Sony Corp Photographing method
GB1598070A (en) * 1976-12-22 1981-09-16 Spence Bate Microform camera
US4160596A (en) * 1977-10-18 1979-07-10 The United States Of America As Represented By The Secretary Of Commerce Document reproduction illumination/exposure control system
US4360265A (en) * 1979-11-29 1982-11-23 Energy Conversion Devices, Inc. Apparatus for producing microform records from hard copy, cathode ray tube image or transparency data-containing sources
US4519692A (en) * 1983-04-08 1985-05-28 Warner-Lambert Technologies, Inc. Exposure and camera control
NL8400576A (nl) * 1984-02-24 1985-09-16 Oce Helioprint As Dia-belichtingsinrichting.
JP3200894B2 (ja) * 1991-03-05 2001-08-20 株式会社日立製作所 露光方法及びその装置
US5424804A (en) * 1994-03-23 1995-06-13 Eastman Kodak Company Automatic exposure control using density slope control for a planetary microfilmer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2201606A (en) * 1939-03-06 1940-05-21 Joseph M Bing Automatic exposure control
US2472381A (en) * 1945-05-12 1949-06-07 G M Lab Inc Two range exposure meter
US2857555A (en) * 1953-10-20 1958-10-21 Koen Floyd Exposure timing for use with photographic printing apparatus
CH386847A (de) * 1961-08-18 1965-01-15 Kelsh Instr Co Photographisches Kopiergerät
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.
US3606552A (en) * 1969-03-12 1971-09-20 Pentacon Dresden Veb Photographic exposure measuring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026403A1 (fr) * 1979-09-26 1981-04-08 Agfa-Gevaert AG Dispositif de prise de vues en continu pour microfilm

Also Published As

Publication number Publication date
DE2435530A1 (de) 1975-02-20
FR2240444B1 (fr) 1976-12-31
GB1439096A (en) 1976-06-09
DE7425152U (de) 1974-11-14
US3947112A (en) 1976-03-30
FR2240444A1 (fr) 1975-03-07

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