FR811936A - Perfectionnements aux projecteurs - Google Patents

Perfectionnements aux projecteurs

Info

Publication number
FR811936A
FR811936A FR811936DA FR811936A FR 811936 A FR811936 A FR 811936A FR 811936D A FR811936D A FR 811936DA FR 811936 A FR811936 A FR 811936A
Authority
FR
France
Prior art keywords
refinements
projector
projector refinements
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR811936A publication Critical patent/FR811936A/fr
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)
FR811936D 1935-10-21 1936-10-20 Perfectionnements aux projecteurs Expired FR811936A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB811936X 1935-10-21

Publications (1)

Publication Number Publication Date
FR811936A true FR811936A (fr) 1937-04-26

Family

ID=10522752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR811936D Expired FR811936A (fr) 1935-10-21 1936-10-20 Perfectionnements aux projecteurs

Country Status (1)

Country Link
FR (1) FR811936A (fr)

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