IT967754B - Dispositivo per la pre filtrazione continua e per la intercettazione della esposizione in apparecchi di ingrandimento - Google Patents

Dispositivo per la pre filtrazione continua e per la intercettazione della esposizione in apparecchi di ingrandimento

Info

Publication number
IT967754B
IT967754B IT29541/72A IT2954172A IT967754B IT 967754 B IT967754 B IT 967754B IT 29541/72 A IT29541/72 A IT 29541/72A IT 2954172 A IT2954172 A IT 2954172A IT 967754 B IT967754 B IT 967754B
Authority
IT
Italy
Prior art keywords
interception
exposure
continuous pre
pre filtration
magnification equipment
Prior art date
Application number
IT29541/72A
Other languages
English (en)
Italian (it)
Inventor
S Barbieri
Original Assignee
Durst 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 Durst Ag filed Critical Durst Ag
Priority to IT29541/72A priority Critical patent/IT967754B/it
Priority to DE2312490A priority patent/DE2312490C2/de
Priority to FR7333401A priority patent/FR2200976A5/fr
Priority to US399050A priority patent/US3880519A/en
Priority to JP10553373A priority patent/JPS5712974B2/ja
Application granted granted Critical
Publication of IT967754B publication Critical patent/IT967754B/it

Links

Classifications

    • 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
    • G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
    • G03B27/735—Controlling exposure by variation of spectral composition, e.g. multicolor printers in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Projection-Type Copiers In General (AREA)
IT29541/72A 1972-09-22 1972-09-22 Dispositivo per la pre filtrazione continua e per la intercettazione della esposizione in apparecchi di ingrandimento IT967754B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT29541/72A IT967754B (it) 1972-09-22 1972-09-22 Dispositivo per la pre filtrazione continua e per la intercettazione della esposizione in apparecchi di ingrandimento
DE2312490A DE2312490C2 (de) 1972-09-22 1973-03-13 Verfahren und Einrichtung zur Vorfilterung und zur Belichtungsunterbrechung in Vergrößerungsgeräten
FR7333401A FR2200976A5 (cg-RX-API-DMAC10.html) 1972-09-22 1973-09-18
US399050A US3880519A (en) 1972-09-22 1973-09-20 Process and apparatus for the prefiltering and for exposure interruption in enlarging apparatus
JP10553373A JPS5712974B2 (cg-RX-API-DMAC10.html) 1972-09-22 1973-09-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT29541/72A IT967754B (it) 1972-09-22 1972-09-22 Dispositivo per la pre filtrazione continua e per la intercettazione della esposizione in apparecchi di ingrandimento

Publications (1)

Publication Number Publication Date
IT967754B true IT967754B (it) 1974-03-11

Family

ID=11227595

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29541/72A IT967754B (it) 1972-09-22 1972-09-22 Dispositivo per la pre filtrazione continua e per la intercettazione della esposizione in apparecchi di ingrandimento

Country Status (5)

Country Link
US (1) US3880519A (cg-RX-API-DMAC10.html)
JP (1) JPS5712974B2 (cg-RX-API-DMAC10.html)
DE (1) DE2312490C2 (cg-RX-API-DMAC10.html)
FR (1) FR2200976A5 (cg-RX-API-DMAC10.html)
IT (1) IT967754B (cg-RX-API-DMAC10.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL91140B1 (cg-RX-API-DMAC10.html) * 1973-12-17 1977-02-28 Centraine Laboratorium Optykipo
JPS53103732U (cg-RX-API-DMAC10.html) * 1977-01-26 1978-08-21
JPS55147621A (en) * 1979-05-07 1980-11-17 Dainippon Screen Mfg Co Ltd Copying camera which photographs plural color images by combining them
US4408873A (en) * 1980-12-08 1983-10-11 Labrum Ervin D Color correction adapter for photographic enlargers
FR2503396A1 (fr) * 1981-04-03 1982-10-08 Kis France Sa Filtre soustractif pour le tirage de film photographique en couleurs
JPH0531640Y2 (cg-RX-API-DMAC10.html) * 1985-04-24 1993-08-13
JPH0673004B2 (ja) * 1985-11-05 1994-09-14 富士写真フイルム株式会社 写真焼付装置用調光装置
JPH0618351Y2 (ja) * 1986-05-21 1994-05-11 コニカ株式会社 色補正フイルタの保持装置
DE29503904U1 (de) * 1995-02-23 1995-06-22 Dunco-Fotogerätebau Georg Schüler GmbH + Co, 13509 Berlin Filtergerät für in der Fototechnik eingesetzte Vergrößerungsgeräte

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049051A (en) * 1956-01-28 1962-08-14 Debrie Andre Victor Le Clement Arrangement with polarizing grating for the photographic establishment of filters with black and white networks
US3107578A (en) * 1959-12-05 1963-10-22 Agfa Ag Filter-operating arrangement for a photographic printing apparatus
US3077140A (en) * 1960-02-17 1963-02-12 Simmon Brothers Inc Color filter devices for photographic printers and enlargers
US3580155A (en) * 1967-11-16 1971-05-25 Agfa Gevaert Ag Driving arrangement for single blade shutter for photographic apparatus
US3516740A (en) * 1968-02-20 1970-06-23 Roy A Clapp Illumination control during color printing
DE6930562U (de) * 1969-06-26 1970-03-26 Agfa Gevaert Ag Fotografisches kopiergeraet
AT311792B (de) * 1970-09-18 1973-10-15 Durst Ag Einrichtung zur bestimmung der farblichtmengen beim photographischen kopieren von transparenten farbnegativen
US3754824A (en) * 1971-12-14 1973-08-28 Berkey Photo Inc Light color control apparatus

Also Published As

Publication number Publication date
US3880519A (en) 1975-04-29
JPS5712974B2 (cg-RX-API-DMAC10.html) 1982-03-13
FR2200976A5 (cg-RX-API-DMAC10.html) 1974-04-19
DE2312490A1 (de) 1974-04-11
DE2312490C2 (de) 1984-09-20
JPS49134329A (cg-RX-API-DMAC10.html) 1974-12-24

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