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FR813908A - Projection device - Google Patents

Projection device

Info

Publication number
FR813908A
FR813908A FR813908DA FR813908A FR 813908 A FR813908 A FR 813908A FR 813908D A FR813908D A FR 813908DA FR 813908 A FR813908 A FR 813908A
Authority
FR
France
Prior art keywords
projection device
projection
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR813908A publication Critical patent/FR813908A/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)
FR813908D 1935-11-27 1936-11-25 Projection device Expired FR813908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE813908X 1935-11-27

Publications (1)

Publication Number Publication Date
FR813908A true FR813908A (en) 1937-06-11

Family

ID=6734421

Family Applications (1)

Application Number Title Priority Date Filing Date
FR813908D Expired FR813908A (en) 1935-11-27 1936-11-25 Projection device

Country Status (1)

Country Link
FR (1) FR813908A (en)

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