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FR1004942A - Projection device lighting device - Google Patents

Projection device lighting device

Info

Publication number
FR1004942A
FR1004942A FR1004942DA FR1004942A FR 1004942 A FR1004942 A FR 1004942A FR 1004942D A FR1004942D A FR 1004942DA FR 1004942 A FR1004942 A FR 1004942A
Authority
FR
France
Prior art keywords
projection
lighting
lighting device
projection device
device lighting
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
French (fr)
Inventor
Eleonore-Anne-Marie Schwartz
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 filed Critical
Application granted granted Critical
Publication of FR1004942A publication Critical patent/FR1004942A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1004942D 1949-11-08 1949-11-08 Projection device lighting device Expired FR1004942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1004942T 1949-11-08

Publications (1)

Publication Number Publication Date
FR1004942A true FR1004942A (en) 1952-04-04

Family

ID=9564305

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1004942D Expired FR1004942A (en) 1949-11-08 1949-11-08 Projection device lighting device

Country Status (1)

Country Link
FR (1) FR1004942A (en)

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