IT1164671B - Gruppo di lampade con scatola di luce asportabile per produrre copie fotografiche - Google Patents

Gruppo di lampade con scatola di luce asportabile per produrre copie fotografiche

Info

Publication number
IT1164671B
IT1164671B IT48533/79A IT4853379A IT1164671B IT 1164671 B IT1164671 B IT 1164671B IT 48533/79 A IT48533/79 A IT 48533/79A IT 4853379 A IT4853379 A IT 4853379A IT 1164671 B IT1164671 B IT 1164671B
Authority
IT
Italy
Prior art keywords
lamps
group
light box
removable light
produce photo
Prior art date
Application number
IT48533/79A
Other languages
English (en)
Other versions
IT7948533A0 (it
Original Assignee
Ciba Geigy 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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of IT7948533A0 publication Critical patent/IT7948533A0/it
Application granted granted Critical
Publication of IT1164671B publication Critical patent/IT1164671B/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
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/545—Lamp housings; Illuminating means for enlargers
    • 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
    • G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Projection-Type Copiers In General (AREA)
IT48533/79A 1978-03-31 1979-03-29 Gruppo di lampade con scatola di luce asportabile per produrre copie fotografiche IT1164671B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1262878 1978-03-31
GB7909047A GB2017946B (en) 1978-03-31 1979-03-14 Removable light box

Publications (2)

Publication Number Publication Date
IT7948533A0 IT7948533A0 (it) 1979-03-29
IT1164671B true IT1164671B (it) 1987-04-15

Family

ID=26249152

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48533/79A IT1164671B (it) 1978-03-31 1979-03-29 Gruppo di lampade con scatola di luce asportabile per produrre copie fotografiche

Country Status (2)

Country Link
GB (1) GB2017946B (it)
IT (1) IT1164671B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54131932A (en) * 1978-03-31 1979-10-13 Ciba Geigy Ag Lamp box
US4299204A (en) * 1980-05-21 1981-11-10 Cotsworth John L Solar collector
DE3402345A1 (de) * 1983-01-25 1984-08-09 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa Kopiertisch fuer eine reproduktionskamera

Also Published As

Publication number Publication date
GB2017946B (en) 1982-03-31
GB2017946A (en) 1979-10-10
IT7948533A0 (it) 1979-03-29

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