FR612334A - Improvements to cinematographic projection devices - Google Patents

Improvements to cinematographic projection devices

Info

Publication number
FR612334A
FR612334A FR612334DA FR612334A FR 612334 A FR612334 A FR 612334A FR 612334D A FR612334D A FR 612334DA FR 612334 A FR612334 A FR 612334A
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
Georges Mengden
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 filed Critical
Application granted granted Critical
Publication of FR612334A publication Critical patent/FR612334A/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
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/40—Eliminating or reducing effect of flicker

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR612334D 1926-03-05 1926-03-05 Improvements to cinematographic projection devices Expired FR612334A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR612334T 1926-03-05

Publications (1)

Publication Number Publication Date
FR612334A true FR612334A (en) 1926-10-21

Family

ID=8978745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR612334D Expired FR612334A (en) 1926-03-05 1926-03-05 Improvements to cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR612334A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145482B (en) * 1956-04-12 1963-03-14 Alexander Nikolaus Karawias Method for recording, copying and playing back cinematographic films and devices for carrying out the same
DE1179107B (en) * 1962-11-28 1964-10-01 Zeiss Ikon Ag Process for recording and playback of television picture sequences and device for carrying out the process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145482B (en) * 1956-04-12 1963-03-14 Alexander Nikolaus Karawias Method for recording, copying and playing back cinematographic films and devices for carrying out the same
DE1179107B (en) * 1962-11-28 1964-10-01 Zeiss Ikon Ag Process for recording and playback of television picture sequences and device for carrying out the process

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