BE342544A - - Google Patents

Info

Publication number
BE342544A
BE342544A BE342544DA BE342544A BE 342544 A BE342544 A BE 342544A BE 342544D A BE342544D A BE 342544DA BE 342544 A BE342544 A BE 342544A
Authority
BE
Belgium
Prior art keywords
projection
episcope
projected
water
incandescent lamps
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE342544A publication Critical patent/BE342544A/fr

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/06Projectors or projection-type viewers; Accessories therefor affording only episcopic projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
BE342544D BE342544A (https=)

Publications (1)

Publication Number Publication Date
BE342544A true BE342544A (https=)

Family

ID=19001

Family Applications (1)

Application Number Title Priority Date Filing Date
BE342544D BE342544A (https=)

Country Status (1)

Country Link
BE (1) BE342544A (https=)

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