FR508969A - Lighting device for cinematographic projections - Google Patents

Lighting device for cinematographic projections

Info

Publication number
FR508969A
FR508969A FR508969DA FR508969A FR 508969 A FR508969 A FR 508969A FR 508969D A FR508969D A FR 508969DA FR 508969 A FR508969 A FR 508969A
Authority
FR
France
Prior art keywords
lighting device
cinematographic
projections
cinematographic projections
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
Etienne-Noel Mollier
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 FR508969A publication Critical patent/FR508969A/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
    • G03B21/2053—Intensity control of illuminating light

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR508969D 1918-12-20 1918-12-20 Lighting device for cinematographic projections Expired FR508969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR508969T 1918-12-20

Publications (1)

Publication Number Publication Date
FR508969A true FR508969A (en) 1920-10-28

Family

ID=8910730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR508969D Expired FR508969A (en) 1918-12-20 1918-12-20 Lighting device for cinematographic projections

Country Status (1)

Country Link
FR (1) FR508969A (en)

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