FR857016A - Dispositif optique de téléaffichage - Google Patents

Dispositif optique de téléaffichage

Info

Publication number
FR857016A
FR857016A FR857016DA FR857016A FR 857016 A FR857016 A FR 857016A FR 857016D A FR857016D A FR 857016DA FR 857016 A FR857016 A FR 857016A
Authority
FR
France
Prior art keywords
display device
remote display
optical remote
optical
remote
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
Pierre Arthur Picard
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 FR857016A publication Critical patent/FR857016A/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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR857016D 1939-03-16 1939-03-16 Dispositif optique de téléaffichage Expired FR857016A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR857016T 1939-03-16

Publications (1)

Publication Number Publication Date
FR857016A true FR857016A (fr) 1940-08-22

Family

ID=9329211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR857016D Expired FR857016A (fr) 1939-03-16 1939-03-16 Dispositif optique de téléaffichage

Country Status (1)

Country Link
FR (1) FR857016A (fr)

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