FR545810A - Improvements in optical projection apparatus, particularly applicable to optical projection lanterns, cinematographic projectors and similar apparatus - Google Patents

Improvements in optical projection apparatus, particularly applicable to optical projection lanterns, cinematographic projectors and similar apparatus

Info

Publication number
FR545810A
FR545810A FR545810DA FR545810A FR 545810 A FR545810 A FR 545810A FR 545810D A FR545810D A FR 545810DA FR 545810 A FR545810 A FR 545810A
Authority
FR
France
Prior art keywords
optical projection
particularly applicable
lanterns
cinematographic projectors
similar
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
Percy Edward Correll
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 FR545810A publication Critical patent/FR545810A/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
    • G03B21/208—Homogenising, shaping of the illumination light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR545810D 1922-01-12 1922-01-12 Improvements in optical projection apparatus, particularly applicable to optical projection lanterns, cinematographic projectors and similar apparatus Expired FR545810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR545810T 1922-01-12

Publications (1)

Publication Number Publication Date
FR545810A true FR545810A (en) 1922-10-21

Family

ID=8933197

Family Applications (1)

Application Number Title Priority Date Filing Date
FR545810D Expired FR545810A (en) 1922-01-12 1922-01-12 Improvements in optical projection apparatus, particularly applicable to optical projection lanterns, cinematographic projectors and similar apparatus

Country Status (1)

Country Link
FR (1) FR545810A (en)

Similar Documents

Publication Publication Date Title
FR545810A (en) Improvements in optical projection apparatus, particularly applicable to optical projection lanterns, cinematographic projectors and similar apparatus
AU1698820A (en) Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like
FR551674A (en) Cinematograph Projection Lantern Optical System
AU1698820B (en) Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like
FR558986A (en) Dual projector lens
FR578496A (en) Optical device applicable to streetlamp cinematographic apparatus
FR551758A (en) Improvements in optical systems for cameras
FR572666A (en) Fixture for fixed projection on cinematographic projectors
ES86387A1 (en) Improvements in light projectors.
FR557693A (en) Improvements in cinematographic view projection apparatus and other similar apparatus
CA218749A (en) Portable cinematograph projector
FR599248A (en) Projector lens enhancements
FR555655A (en) Improvements made to cinematographic projection devices
FR545809A (en) Improvements to light projection devices for optical projection lanterns, cinematographs, etc.
FR618632A (en) Lens for cameras and projection
FR567285A (en) Photographic lens
CA247473A (en) Focusing means for light projectors
DK33350C (en) Cinematographic projection apparatus.
DK33127C (en) Cinematographic projection apparatus.
FR614065A (en) Improvements to optical projection systems
AU2313829A (en) Small cine projector for through projection using an endless film
FR603779A (en) Improvement in light projection systems
ES80347A1 (en) An improvement in film dragging devices in cinematographic projection devices.
AU1698720A (en) Improvements in and relating' to light-projection apparatus for optical projection lanterns, cinematograph projectors andthe like
FR729532A (en) Luminous slit projection device particularly applicable to talking films