IT1042367B - Dispositivo per la determinazione di valori estremi della densita - Google Patents

Dispositivo per la determinazione di valori estremi della densita

Info

Publication number
IT1042367B
IT1042367B IT2701675A IT2701675A IT1042367B IT 1042367 B IT1042367 B IT 1042367B IT 2701675 A IT2701675 A IT 2701675A IT 2701675 A IT2701675 A IT 2701675A IT 1042367 B IT1042367 B IT 1042367B
Authority
IT
Italy
Prior art keywords
density values
extreme density
determining extreme
determining
values
Prior art date
Application number
IT2701675A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1042367B publication Critical patent/IT1042367B/it

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)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Control Or Security For Electrophotography (AREA)
IT2701675A 1974-09-25 1975-09-08 Dispositivo per la determinazione di valori estremi della densita IT1042367B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742445831 DE2445831C3 (de) 1974-09-25 1974-09-25 Vorrichtung zur Ermittlung von extremen Dichtewerten

Publications (1)

Publication Number Publication Date
IT1042367B true IT1042367B (it) 1980-01-30

Family

ID=5926707

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2701675A IT1042367B (it) 1974-09-25 1975-09-08 Dispositivo per la determinazione di valori estremi della densita

Country Status (5)

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

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 (de) * 1977-09-23 1979-05-16 ACO-Industriebedarf Gesellschaft m.b.H. Verfahren und Vorrichtung zur Bewertung von Filmnegativen hinsichtlich ihrer Kopierfähigkeit
DE2753632C2 (de) * 1977-12-01 1985-08-29 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zum Selektieren von kopierunwürdigen fotografischen Vorlagen
JPS54157673A (en) * 1978-06-01 1979-12-12 Tokyo Karaa Kk Device for detecting density of base of photographic film
DE3219429A1 (de) * 1982-05-24 1983-11-24 Horst Dipl.-Ing. 6101 Messel Köth Verfahren und vorrichtung zur messung der dichte bzw. schwaerzung von bildvorlagen
DE3407064A1 (de) * 1983-02-28 1984-08-30 Canon K.K., Tokio/Tokyo Bildreproduktionsgeraet
JPH0619322B2 (ja) * 1984-12-27 1994-03-16 株式会社島津製作所 クロマトスキヤナ
US4945222A (en) * 1987-10-20 1990-07-31 Brother Kogyo Kabushiki Kaisha Light irradiation control device for use in image recording apparatus
EP0415888B1 (de) * 1989-09-01 1994-06-01 Gretag Imaging Ag Photoelektrischer Abtaster

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
CH589867A5 (it) 1977-07-15
DE2445831A1 (de) 1976-04-15
DE2445831B2 (de) 1977-12-29
GB1528195A (en) 1978-10-11
DE2445831C3 (de) 1978-08-31
JPS5163673A (en) 1976-06-02

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