FR1064218A - Projection apparatus, in particular for viewing documents or microfilms - Google Patents

Projection apparatus, in particular for viewing documents or microfilms

Info

Publication number
FR1064218A
FR1064218A FR1064218DA FR1064218A FR 1064218 A FR1064218 A FR 1064218A FR 1064218D A FR1064218D A FR 1064218DA FR 1064218 A FR1064218 A FR 1064218A
Authority
FR
France
Prior art keywords
microfilms
projection apparatus
viewing documents
viewing
documents
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
Joseph Chenouard
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 FR1064218A publication Critical patent/FR1064218A/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
    • G03B21/10—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)
FR1064218D 1952-10-08 1952-10-08 Projection apparatus, in particular for viewing documents or microfilms Expired FR1064218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1064218T 1952-10-08

Publications (1)

Publication Number Publication Date
FR1064218A true FR1064218A (en) 1954-05-12

Family

ID=9601600

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1064218D Expired FR1064218A (en) 1952-10-08 1952-10-08 Projection apparatus, in particular for viewing documents or microfilms

Country Status (1)

Country Link
FR (1) FR1064218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074935A (en) * 1974-07-17 1978-02-21 Spence Bate Alternative camera arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074935A (en) * 1974-07-17 1978-02-21 Spence Bate Alternative camera arrangement

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