GB1534125A - Optical system for use in a cinematographic film projecto - Google Patents

Optical system for use in a cinematographic film projecto

Info

Publication number
GB1534125A
GB1534125A GB4265977A GB4265977A GB1534125A GB 1534125 A GB1534125 A GB 1534125A GB 4265977 A GB4265977 A GB 4265977A GB 4265977 A GB4265977 A GB 4265977A GB 1534125 A GB1534125 A GB 1534125A
Authority
GB
United Kingdom
Prior art keywords
prism
projecto
light
optical system
film
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
GB4265977A
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.)
PRESTINOX SA
Original Assignee
PRESTINOX SA
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 PRESTINOX SA filed Critical PRESTINOX SA
Publication of GB1534125A publication Critical patent/GB1534125A/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
    • G03B41/08—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator with rotating transmitting member

Abstract

1534125 Cinematograph projectors PRESTINOX SA 13 Oct 1977 [4 Nov 1976] 42659/77 Heading G2E In a cinematograph projector in which the image of a frame on a moving film 4 is kept stationary by a multi-faced rotating prism 2, a sprocket driving the film by teeth 3 is fast with, or integral with, the prism 2; and prism 7 with faces 8, 9 at an angle is held stationary within the prism 2 to lengthen the light path. Light from a lamp 15 and condenser 14 illuminates a frame, light from which passes through a prism face to prism 7, and is reflected at faces 8, 9 to emerge through a vertical face of prism 2 to the projection lens 16.
GB4265977A 1976-11-04 1977-10-13 Optical system for use in a cinematographic film projecto Expired GB1534125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7633219A FR2370300A1 (en) 1976-11-04 1976-11-04 IMPROVEMENTS TO OPTICAL SYSTEMS FOR CINEMATOGRAPHIC FILM PROJECTORS

Publications (1)

Publication Number Publication Date
GB1534125A true GB1534125A (en) 1978-11-29

Family

ID=9179525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4265977A Expired GB1534125A (en) 1976-11-04 1977-10-13 Optical system for use in a cinematographic film projecto

Country Status (6)

Country Link
JP (1) JPS5357827A (en)
AU (1) AU2973377A (en)
DE (1) DE2749495A1 (en)
FR (1) FR2370300A1 (en)
GB (1) GB1534125A (en)
IT (1) IT1086944B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567573B2 (en) * 1978-03-13 1987-11-26 Showscan Film Corp. Motion picture system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972280A (en) * 1952-04-15 1961-02-21 John C Kudar Continuous motion picture transmitting apparatus
FR2050531A5 (en) * 1969-06-17 1971-04-02 Fabiani Henri

Also Published As

Publication number Publication date
JPS5357827A (en) 1978-05-25
AU2973377A (en) 1979-04-26
DE2749495A1 (en) 1978-05-11
FR2370300A1 (en) 1978-06-02
IT1086944B (en) 1985-05-31
FR2370300B1 (en) 1979-03-02

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed