FR595577A - Appareil de projection d'ombres - Google Patents

Appareil de projection d'ombres

Info

Publication number
FR595577A
FR595577A FR595577DA FR595577A FR 595577 A FR595577 A FR 595577A FR 595577D A FR595577D A FR 595577DA FR 595577 A FR595577 A FR 595577A
Authority
FR
France
Prior art keywords
projection device
shadow projection
shadow
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
English (en)
Inventor
Alvin Richard Meissner
Henry Herbert Byrne
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 FR595577A publication Critical patent/FR595577A/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
    • G03B21/54—Accessories
    • G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR595577D 1925-03-23 1925-03-23 Appareil de projection d'ombres Expired FR595577A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR595577T 1925-03-23

Publications (1)

Publication Number Publication Date
FR595577A true FR595577A (fr) 1925-10-05

Family

ID=8966941

Family Applications (1)

Application Number Title Priority Date Filing Date
FR595577D Expired FR595577A (fr) 1925-03-23 1925-03-23 Appareil de projection d'ombres

Country Status (1)

Country Link
FR (1) FR595577A (fr)

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