GB1384334A - Illumination system for colour enlargers and the like - Google Patents

Illumination system for colour enlargers and the like

Info

Publication number
GB1384334A
GB1384334A GB4884172A GB4884172A GB1384334A GB 1384334 A GB1384334 A GB 1384334A GB 4884172 A GB4884172 A GB 4884172A GB 4884172 A GB4884172 A GB 4884172A GB 1384334 A GB1384334 A GB 1384334A
Authority
GB
United Kingdom
Prior art keywords
light
colour
holder
enlargers
chamber
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4884172A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Berkey Photo Inc
Original Assignee
Berkey Photo 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 Berkey Photo Inc filed Critical Berkey Photo Inc
Publication of GB1384334A publication Critical patent/GB1384334A/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Projection-Type Copiers In General (AREA)
GB4884172A 1971-12-14 1972-10-24 Illumination system for colour enlargers and the like Expired GB1384334A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20799271A 1971-12-14 1971-12-14

Publications (1)

Publication Number Publication Date
GB1384334A true GB1384334A (en) 1975-02-19

Family

ID=22772801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4884172A Expired GB1384334A (en) 1971-12-14 1972-10-24 Illumination system for colour enlargers and the like

Country Status (6)

Country Link
US (1) US3756712A (enExample)
JP (1) JPS4866837A (enExample)
DE (1) DE2258591A1 (enExample)
FR (1) FR2167030A5 (enExample)
GB (1) GB1384334A (enExample)
IT (1) IT971138B (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1008638B (it) * 1973-01-13 1976-11-30 Beger R Mirino di illuminazione per appa recchi i ingrandimento fotografico
US3927941A (en) * 1973-07-03 1975-12-23 Minolta Camera Kk Photographic enlarger mixing box
JPS544984Y2 (enExample) * 1974-01-25 1979-03-03
US3880520A (en) * 1973-11-23 1975-04-29 Berkey Photo Inc Color enlarger and illuminating system therefor
PL91140B1 (enExample) * 1973-12-17 1977-02-28 Centraine Laboratorium Optykipo
GB1552459A (en) * 1976-07-26 1979-09-12 Durst Uk Ltd Ullumination system for a photographic copying apparatus
US4129372A (en) * 1976-08-17 1978-12-12 Vivitar Corporation Light mixing apparatus and photographic enlarger embodying same
IT1072361B (it) * 1977-02-17 1985-04-10 Durst Fabbrica Macchine Ed App Dispositivo di illuminazione per apparecchi per l'ingrandimento fotografico a colori
US4274131A (en) * 1979-06-14 1981-06-16 Vivitar Corporation Light diffusing means for a photographic enlarger
US4240738A (en) * 1979-06-14 1980-12-23 Vivitar Corporation Light mixing system for a photographic enlarger
IT1120396B (it) * 1979-09-18 1986-03-19 Durst Spa Fabbrica Macchine Ed Dispositivo di filtratura per un ingranditore o riproduttore fotografico
FR2503396A1 (fr) * 1981-04-03 1982-10-08 Kis France Sa Filtre soustractif pour le tirage de film photographique en couleurs
DE3319399A1 (de) * 1983-05-28 1984-11-29 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Lichtmischkammer fuer ein fotografisches vergroesserungs- oder kopiergeraet
JPH02149933U (enExample) * 1989-05-24 1990-12-21
DE102005036275A1 (de) * 2005-08-02 2007-02-08 Berchtold Holding Gmbh Operationsleuchte
DE102009053422A1 (de) * 2009-11-19 2011-06-01 Erco Gmbh Linsenelement für eine Lichtquelle u. a.
US10053006B1 (en) * 2017-01-31 2018-08-21 Ford Global Technologies, Llc Illuminated assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1080543A (en) * 1964-08-28 1967-08-23 Pavelle Ltd Improvements in or relating to photographic colour printing apparatus
GB1155655A (en) * 1966-05-06 1969-06-18 Meopta Narodni Podnik Photographic Enlarging Apparatus
US3469914A (en) * 1966-11-04 1969-09-30 Charles Leslie Thomson Enlarger head for use with variable contrast paper

Also Published As

Publication number Publication date
JPS4866837A (enExample) 1973-09-13
US3756712A (en) 1973-09-04
FR2167030A5 (enExample) 1973-08-17
IT971138B (it) 1974-04-30
DE2258591A1 (de) 1973-06-28

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee