FR1124726A - Perfectionnements aux lanternes de projection - Google Patents

Perfectionnements aux lanternes de projection

Info

Publication number
FR1124726A
FR1124726A FR1124726DA FR1124726A FR 1124726 A FR1124726 A FR 1124726A FR 1124726D A FR1124726D A FR 1124726DA FR 1124726 A FR1124726 A FR 1124726A
Authority
FR
France
Prior art keywords
lanterns
projection
projection lanterns
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)
Inventor
Andre-Maurice-Alexan Enos
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 FR1124726A publication Critical patent/FR1124726A/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)
FR1124726D 1955-04-18 1955-04-18 Perfectionnements aux lanternes de projection Expired FR1124726A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1124726T 1955-04-18

Publications (1)

Publication Number Publication Date
FR1124726A true FR1124726A (fr) 1956-10-16

Family

ID=9634099

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1124726D Expired FR1124726A (fr) 1955-04-18 1955-04-18 Perfectionnements aux lanternes de projection

Country Status (1)

Country Link
FR (1) FR1124726A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557055A (en) * 1983-07-29 1985-12-10 Nihon Ouyou Kougaku Kabushiki Kaisha Rainbow projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557055A (en) * 1983-07-29 1985-12-10 Nihon Ouyou Kougaku Kabushiki Kaisha Rainbow projector

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