FR1041492A - Anti-thermal device for optical projection device - Google Patents

Anti-thermal device for optical projection device

Info

Publication number
FR1041492A
FR1041492A FR1041492DA FR1041492A FR 1041492 A FR1041492 A FR 1041492A FR 1041492D A FR1041492D A FR 1041492DA FR 1041492 A FR1041492 A FR 1041492A
Authority
FR
France
Prior art keywords
optical projection
thermal
projection device
thermal device
optical
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
Pierre Angenieux
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 FR1041492A publication Critical patent/FR1041492A/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
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1041492D 1951-09-03 1951-09-03 Anti-thermal device for optical projection device Expired FR1041492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1041492T 1951-09-03

Publications (1)

Publication Number Publication Date
FR1041492A true FR1041492A (en) 1953-10-23

Family

ID=9589545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1041492D Expired FR1041492A (en) 1951-09-03 1951-09-03 Anti-thermal device for optical projection device

Country Status (1)

Country Link
FR (1) FR1041492A (en)

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