FR951415A - Improvements to projection devices - Google Patents

Improvements to projection devices

Info

Publication number
FR951415A
FR951415A FR951415DA FR951415A FR 951415 A FR951415 A FR 951415A FR 951415D A FR951415D A FR 951415DA FR 951415 A FR951415 A FR 951415A
Authority
FR
France
Prior art keywords
projection devices
projection
devices
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)
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 Generale de Radiologie SA
Original Assignee
Compagnie Generale de Radiologie 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 Generale de Radiologie SA filed Critical Compagnie Generale de Radiologie SA
Application granted granted Critical
Publication of FR951415A publication Critical patent/FR951415A/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
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR951415D 1943-03-08 1943-03-08 Improvements to projection devices Expired FR951415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR951415T 1943-03-08

Publications (1)

Publication Number Publication Date
FR951415A true FR951415A (en) 1949-10-25

Family

ID=9485006

Family Applications (1)

Application Number Title Priority Date Filing Date
FR951415D Expired FR951415A (en) 1943-03-08 1943-03-08 Improvements to projection devices

Country Status (1)

Country Link
FR (1) FR951415A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001636A1 (en) * 1977-10-21 1979-05-02 Durst AG Fabrik Fototechnischer Apparate Exposure device for colour enlarging or copying apparatuses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001636A1 (en) * 1977-10-21 1979-05-02 Durst AG Fabrik Fototechnischer Apparate Exposure device for colour enlarging or copying apparatuses

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