FR756067A - Appareil de projection de films cinématographiques - Google Patents

Appareil de projection de films cinématographiques

Info

Publication number
FR756067A
FR756067A FR756067DA FR756067A FR 756067 A FR756067 A FR 756067A FR 756067D A FR756067D A FR 756067DA FR 756067 A FR756067 A FR 756067A
Authority
FR
France
Prior art keywords
projection device
film projection
cinematographic film
cinematographic
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
English (en)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR756067A publication Critical patent/FR756067A/fr
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)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR756067D 1932-07-25 1933-05-24 Appareil de projection de films cinématographiques Expired FR756067A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US624443A US1971454A (en) 1932-07-25 1932-07-25 Motion picture apparatus

Publications (1)

Publication Number Publication Date
FR756067A true FR756067A (fr) 1933-12-04

Family

ID=24502042

Family Applications (1)

Application Number Title Priority Date Filing Date
FR756067D Expired FR756067A (fr) 1932-07-25 1933-05-24 Appareil de projection de films cinématographiques

Country Status (3)

Country Link
US (1) US1971454A (fr)
FR (1) FR756067A (fr)
GB (1) GB401193A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449713A (en) * 1945-06-14 1948-09-21 Curtis Helene Ind Inc Cooling system for portable motionpicture projectors
BE486356A (fr) * 1948-01-02 1948-12-16
US2751815A (en) * 1952-06-03 1956-06-26 Kane Corp Du Strip film projection apparatus
US2817267A (en) * 1953-03-23 1957-12-24 Kalart Co Inc Film cooling apparatus for film projectors
US2820394A (en) * 1953-06-26 1958-01-21 Clarence S Ashcraft Air-cooled heat deflector for picture projector arc lamp
US2837965A (en) * 1953-09-29 1958-06-10 Rca Corp Projector cooling system
US2818771A (en) * 1954-05-17 1958-01-07 American Optical Corp Projectors
US2779236A (en) * 1955-03-08 1957-01-29 Viewlex Inc Film projector cooling means
DE1077529B (de) * 1957-08-28 1960-03-10 Agfa Ag Vorrichtung zur Vorfuehrung von Schmalfilmen

Also Published As

Publication number Publication date
US1971454A (en) 1934-08-28
GB401193A (en) 1933-11-09

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