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FR884310A - Further training in optical equipment for illuminated projectors - Google Patents

Further training in optical equipment for illuminated projectors

Info

Publication number
FR884310A
FR884310A FR884310DA FR884310A FR 884310 A FR884310 A FR 884310A FR 884310D A FR884310D A FR 884310DA FR 884310 A FR884310 A FR 884310A
Authority
FR
France
Prior art keywords
optical equipment
further training
projectors
illuminated
illuminated projectors
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
Herbert-Victor-Jean Dupuy
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 FR884310A publication Critical patent/FR884310A/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
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR884310D 1942-07-21 1942-07-21 Further training in optical equipment for illuminated projectors Expired FR884310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR884310T 1942-07-21

Publications (1)

Publication Number Publication Date
FR884310A true FR884310A (en) 1943-08-10

Family

ID=9374911

Family Applications (1)

Application Number Title Priority Date Filing Date
FR884310D Expired FR884310A (en) 1942-07-21 1942-07-21 Further training in optical equipment for illuminated projectors

Country Status (1)

Country Link
FR (1) FR884310A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334743A (en) * 1980-03-04 1982-06-15 Datagraphix, Inc. Optical arrangement for use in a microfiche reader and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334743A (en) * 1980-03-04 1982-06-15 Datagraphix, Inc. Optical arrangement for use in a microfiche reader and method

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