FR845641A - Cooling device for cinematographic projection devices - Google Patents

Cooling device for cinematographic projection devices

Info

Publication number
FR845641A
FR845641A FR845641DA FR845641A FR 845641 A FR845641 A FR 845641A FR 845641D A FR845641D A FR 845641DA FR 845641 A FR845641 A FR 845641A
Authority
FR
France
Prior art keywords
cooling device
projection devices
cinematographic projection
cinematographic
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR845641A publication Critical patent/FR845641A/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)
FR845641D 1938-01-08 1938-11-04 Cooling device for cinematographic projection devices Expired FR845641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE845641X 1938-01-08

Publications (1)

Publication Number Publication Date
FR845641A true FR845641A (en) 1939-08-29

Family

ID=6774862

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845641D Expired FR845641A (en) 1938-01-08 1938-11-04 Cooling device for cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR845641A (en)

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