CH589867A5 - - Google Patents

Info

Publication number
CH589867A5
CH589867A5 CH1219875A CH1219875A CH589867A5 CH 589867 A5 CH589867 A5 CH 589867A5 CH 1219875 A CH1219875 A CH 1219875A CH 1219875 A CH1219875 A CH 1219875A CH 589867 A5 CH589867 A5 CH 589867A5
Authority
CH
Switzerland
Application number
CH1219875A
Original Assignee
Agfa Gevaert Ag
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 Agfa Gevaert Ag filed Critical Agfa Gevaert Ag
Publication of CH589867A5 publication Critical patent/CH589867A5/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N21/5911—Densitometers of the scanning type
    • 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)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CH1219875A 1974-09-25 1975-09-19 CH589867A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742445831 DE2445831C3 (en) 1974-09-25 1974-09-25 Device for determining extreme density values

Publications (1)

Publication Number Publication Date
CH589867A5 true CH589867A5 (en) 1977-07-15

Family

ID=5926707

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1219875A CH589867A5 (en) 1974-09-25 1975-09-19

Country Status (5)

Country Link
JP (1) JPS5163673A (en)
CH (1) CH589867A5 (en)
DE (1) DE2445831C3 (en)
GB (1) GB1528195A (en)
IT (1) IT1042367B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143312A (en) * 1977-05-20 1978-12-13 Fuji Photo Film Co Ltd Photographic film scanner
EP0001747A1 (en) * 1977-09-23 1979-05-16 ACO-Industriebedarf Gesellschaft m.b.H. Method and apparatus for evaluating film negatives with respect to their copying ability
DE2753632C2 (en) * 1977-12-01 1985-08-29 Agfa-Gevaert Ag, 5090 Leverkusen Method and device for the selection of photographic originals which are not worth copying
JPS54157673A (en) * 1978-06-01 1979-12-12 Tokyo Karaa Kk Device for detecting density of base of photographic film
DE3219429A1 (en) * 1982-05-24 1983-11-24 Horst Dipl.-Ing. 6101 Messel Köth Method and device for measuring the density or blackening of picture copies
DE3407064A1 (en) * 1983-02-28 1984-08-30 Canon K.K., Tokio/Tokyo IMAGE REPRODUCTION DEVICE
JPH0619322B2 (en) * 1984-12-27 1994-03-16 株式会社島津製作所 Chromatoskiana
US4945222A (en) * 1987-10-20 1990-07-31 Brother Kogyo Kabushiki Kaisha Light irradiation control device for use in image recording apparatus
DE59005903D1 (en) * 1989-09-01 1994-07-07 Gretag Imaging Ag Photoelectric scanner.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741664A (en) * 1971-05-28 1973-06-26 Saab Scania Ab Method for measuring the light transmission of a photographic film giving a digitized output

Also Published As

Publication number Publication date
DE2445831B2 (en) 1977-12-29
GB1528195A (en) 1978-10-11
JPS5163673A (en) 1976-06-02
IT1042367B (en) 1980-01-30
DE2445831A1 (en) 1976-04-15
DE2445831C3 (en) 1978-08-31

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Legal Events

Date Code Title Description
PL Patent ceased