FR438763A - Improvements in cinematographic projection devices - Google Patents

Improvements in cinematographic projection devices

Info

Publication number
FR438763A
FR438763A FR438763DA FR438763A FR 438763 A FR438763 A FR 438763A FR 438763D A FR438763D A FR 438763DA FR 438763 A FR438763 A FR 438763A
Authority
FR
France
Prior art keywords
projection devices
cinematographic projection
cinematographic
devices
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)
Inventor
Giles Emmet Ripley
William Nathan Gladson
Ross Emile Thompson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR438763A publication Critical patent/FR438763A/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
    • G03B41/00—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
    • G03B41/02—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film
    • G03B41/04—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator
    • G03B41/06—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator with rotating reflecting member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR438763D 1912-01-08 1912-01-08 Improvements in cinematographic projection devices Expired FR438763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR438763T 1912-01-08

Publications (1)

Publication Number Publication Date
FR438763A true FR438763A (en) 1912-05-28

Family

ID=1480247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR438763D Expired FR438763A (en) 1912-01-08 1912-01-08 Improvements in cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR438763A (en)

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