FR910108A - Perfectionnements aux appareils de projection et de lecture ou analogues - Google Patents

Perfectionnements aux appareils de projection et de lecture ou analogues

Info

Publication number
FR910108A
FR910108A FR910108DA FR910108A FR 910108 A FR910108 A FR 910108A FR 910108D A FR910108D A FR 910108DA FR 910108 A FR910108 A FR 910108A
Authority
FR
France
Prior art keywords
projection
reading apparatus
reading
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR910108A publication Critical patent/FR910108A/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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR910108D 1942-12-12 1942-12-12 Perfectionnements aux appareils de projection et de lecture ou analogues Expired FR910108A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR910108T 1942-12-12

Publications (1)

Publication Number Publication Date
FR910108A true FR910108A (fr) 1946-05-28

Family

ID=9409222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR910108D Expired FR910108A (fr) 1942-12-12 1942-12-12 Perfectionnements aux appareils de projection et de lecture ou analogues

Country Status (1)

Country Link
FR (1) FR910108A (fr)

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