CH360286A - Process for the photographic copying of negatives with different densities onto a single type of paper - Google Patents

Process for the photographic copying of negatives with different densities onto a single type of paper

Info

Publication number
CH360286A
CH360286A CH360286DA CH360286A CH 360286 A CH360286 A CH 360286A CH 360286D A CH360286D A CH 360286DA CH 360286 A CH360286 A CH 360286A
Authority
CH
Switzerland
Prior art keywords
negatives
paper
single type
different densities
photographic copying
Prior art date
Application number
Other languages
German (de)
Inventor
Richardson Craig Dwin
Original Assignee
Logetronics Inc
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 Logetronics Inc filed Critical Logetronics Inc
Publication of CH360286A publication Critical patent/CH360286A/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/02—Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Projection-Type Copiers In General (AREA)
CH360286D 1957-03-13 1957-11-14 Process for the photographic copying of negatives with different densities onto a single type of paper CH360286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US360286XA 1957-03-13 1957-03-13

Publications (1)

Publication Number Publication Date
CH360286A true CH360286A (en) 1962-02-15

Family

ID=21886196

Family Applications (1)

Application Number Title Priority Date Filing Date
CH360286D CH360286A (en) 1957-03-13 1957-11-14 Process for the photographic copying of negatives with different densities onto a single type of paper

Country Status (3)

Country Link
CH (1) CH360286A (en)
DE (1) DE1073863B (en)
GB (1) GB845458A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102450A (en) * 1959-11-19 1963-09-03 Autokopie A G Apparatus for optically printing photographic negatives
DK153426B (en) * 1977-04-12 1988-07-11 Eskofot As PROCEDURE FOR MANAGING CONTRAST BY RASTER EPRODUCTION
US4530011A (en) * 1981-06-19 1985-07-16 Loge/Dunn Instruments, Inc. Apparatus for maintaining of a cathode ray tube image within the light acceptance range of a photographic film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE825205C (en) * 1949-11-01 1951-12-17 Edmund Wateler Process for reducing the tonal range in optical copying

Also Published As

Publication number Publication date
DE1073863B (en) 1960-01-21
GB845458A (en) 1960-08-24

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