FR488048A - Lampe de projection - Google Patents

Lampe de projection

Info

Publication number
FR488048A
FR488048A FR488048DA FR488048A FR 488048 A FR488048 A FR 488048A FR 488048D A FR488048D A FR 488048DA FR 488048 A FR488048 A FR 488048A
Authority
FR
France
Prior art keywords
projection lamp
lamp
projection
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
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.)
Ritter & Uhlmann
Original Assignee
Ritter & Uhlmann
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 Ritter & Uhlmann filed Critical Ritter & Uhlmann
Application granted granted Critical
Publication of FR488048A publication Critical patent/FR488048A/fr
Expired legal-status Critical Current

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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/3212—Couplers characterised by a group not in coupling site, e.g. ballast group, as far as the coupling rest is not specific
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR488048D 1917-01-02 1917-12-19 Lampe de projection Expired FR488048A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE488048X 1917-01-02

Publications (1)

Publication Number Publication Date
FR488048A true FR488048A (fr) 1918-08-13

Family

ID=6543731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR488048D Expired FR488048A (fr) 1917-01-02 1917-12-19 Lampe de projection

Country Status (2)

Country Link
FR (1) FR488048A (fr)
GB (1) GB488048A (fr)

Also Published As

Publication number Publication date
GB488048A (en) 1938-06-30

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