FR540542A - Stereoscopic projection device - Google Patents

Stereoscopic projection device

Info

Publication number
FR540542A
FR540542A FR540542DA FR540542A FR 540542 A FR540542 A FR 540542A FR 540542D A FR540542D A FR 540542DA FR 540542 A FR540542 A FR 540542A
Authority
FR
France
Prior art keywords
projection device
stereoscopic projection
stereoscopic
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
Other languages
French (fr)
Inventor
Herman Adolph De Vry
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 FR540542A publication Critical patent/FR540542A/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
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR540542D 1921-08-19 1921-08-19 Stereoscopic projection device Expired FR540542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR540542T 1921-08-19

Publications (1)

Publication Number Publication Date
FR540542A true FR540542A (en) 1922-07-12

Family

ID=8929554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR540542D Expired FR540542A (en) 1921-08-19 1921-08-19 Stereoscopic projection device

Country Status (1)

Country Link
FR (1) FR540542A (en)

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