FR1142272A - Mirror lighting device for projection devices - Google Patents

Mirror lighting device for projection devices

Info

Publication number
FR1142272A
FR1142272A FR1142272DA FR1142272A FR 1142272 A FR1142272 A FR 1142272A FR 1142272D A FR1142272D A FR 1142272DA FR 1142272 A FR1142272 A FR 1142272A
Authority
FR
France
Prior art keywords
lighting device
projection devices
mirror lighting
mirror
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.)
Zeiss Ikon VEB
Original Assignee
Zeiss Ikon VEB
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 Zeiss Ikon VEB filed Critical Zeiss Ikon VEB
Application granted granted Critical
Publication of FR1142272A publication Critical patent/FR1142272A/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
    • 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)
FR1142272D 1956-03-02 1956-03-02 Mirror lighting device for projection devices Expired FR1142272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1142272T 1956-03-02

Publications (1)

Publication Number Publication Date
FR1142272A true FR1142272A (en) 1957-09-16

Family

ID=9643144

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1142272D Expired FR1142272A (en) 1956-03-02 1956-03-02 Mirror lighting device for projection devices

Country Status (1)

Country Link
FR (1) FR1142272A (en)

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