FR1226414A - Projection device - Google Patents

Projection device

Info

Publication number
FR1226414A
FR1226414A FR732087A FR732087A FR1226414A FR 1226414 A FR1226414 A FR 1226414A FR 732087 A FR732087 A FR 732087A FR 732087 A FR732087 A FR 732087A FR 1226414 A FR1226414 A FR 1226414A
Authority
FR
France
Prior art keywords
projection device
projection
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
FR732087A
Other languages
French (fr)
Inventor
Maurice-Paul Herpin
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
Priority to FR732087A priority Critical patent/FR1226414A/en
Application granted granted Critical
Publication of FR1226414A publication Critical patent/FR1226414A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR732087A 1957-02-19 1957-02-19 Projection device Expired FR1226414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR732087A FR1226414A (en) 1957-02-19 1957-02-19 Projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR732087A FR1226414A (en) 1957-02-19 1957-02-19 Projection device

Publications (1)

Publication Number Publication Date
FR1226414A true FR1226414A (en) 1960-07-11

Family

ID=8704151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR732087A Expired FR1226414A (en) 1957-02-19 1957-02-19 Projection device

Country Status (1)

Country Link
FR (1) FR1226414A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813156A (en) * 1972-07-27 1974-05-28 A Davis Simulated planetarium projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813156A (en) * 1972-07-27 1974-05-28 A Davis Simulated planetarium projector

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