FR2402227A1 - Systeme de projection de films - Google Patents

Systeme de projection de films

Info

Publication number
FR2402227A1
FR2402227A1 FR7825622A FR7825622A FR2402227A1 FR 2402227 A1 FR2402227 A1 FR 2402227A1 FR 7825622 A FR7825622 A FR 7825622A FR 7825622 A FR7825622 A FR 7825622A FR 2402227 A1 FR2402227 A1 FR 2402227A1
Authority
FR
France
Prior art keywords
film
lenses
optical system
projection system
screen
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.)
Granted
Application number
FR7825622A
Other languages
English (en)
Other versions
FR2402227B1 (fr
Inventor
Hendrik Van Oosten
Willem Johan Pieter Ap Verbeek
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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
Priority claimed from NL7709798A external-priority patent/NL7709798A/xx
Priority claimed from NL7806311A external-priority patent/NL7806311A/xx
Application filed by Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Publication of FR2402227A1 publication Critical patent/FR2402227A1/fr
Application granted granted Critical
Publication of FR2402227B1 publication Critical patent/FR2402227B1/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Invention concernant la cinématographie. Système de projection de films comprenant un trajet de guidage du film, une source de lumière pour éclairer le film un système optique tournant et un écran de projection. Le système optique comprend une série de lentilles douées de distorsion qui sont écartées du trajet du film d'une distance sensiblement égale à la distance focale des lentilles. N lentilles coopèrent chaque fois avec N images de film associées. Les faisceaux issus des lentilles convergent sur l'écran grâce à une lentille formant condenseur et à un système de miroirs. Application au montage des films ou à des prises de vues cinématographiques.
FR7825622A 1977-09-06 1978-09-06 Systeme de projection de films Granted FR2402227A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7709798A NL7709798A (en) 1977-09-06 1977-09-06 Flicker-free cine projector - has lenses on circular track coincident with drive for film on similar circular track (NL 8.3.79)
NL7806311A NL7806311A (nl) 1978-06-09 1978-06-09 Filmprojectiestelsel.

Publications (2)

Publication Number Publication Date
FR2402227A1 true FR2402227A1 (fr) 1979-03-30
FR2402227B1 FR2402227B1 (fr) 1984-11-09

Family

ID=26645345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825622A Granted FR2402227A1 (fr) 1977-09-06 1978-09-06 Systeme de projection de films

Country Status (11)

Country Link
US (1) US4226512A (fr)
JP (1) JPS5450325A (fr)
AR (1) AR218332A1 (fr)
BR (1) BR7805856A (fr)
CA (1) CA1095299A (fr)
CH (1) CH638903A5 (fr)
DE (1) DE2838248C2 (fr)
FR (1) FR2402227A1 (fr)
GB (1) GB2004086B (fr)
IL (1) IL55474A (fr)
SE (1) SE438561B (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE97215C (fr) *
CH135786A (de) * 1927-10-22 1929-10-15 Bledowski Jan Verfahren zum optischen Ausgleich der Bildwanderung bei Kinematographen.
US1957457A (en) * 1930-04-04 1934-05-08 Arthur J Holman Optical rectifying system for moving picture projectors and cameras
DE624662C (de) * 1934-03-10 1936-01-25 Wesley Ernest John Kinematographischer Aufnahmeapparat mit kontinuierlicher Filmbewegung
US2410069A (en) * 1940-10-30 1946-10-29 Arthur J Holman Objective for projection, photography, television, and for telescope
US3138057A (en) * 1959-08-05 1964-06-23 Kalart Co Inc Apparatus for projecting and editing motion picture film
JPS4222368Y1 (fr) * 1964-02-06 1967-12-20
US3597057A (en) * 1968-11-13 1971-08-03 Gen Electric Continuous motion picture projector

Also Published As

Publication number Publication date
US4226512A (en) 1980-10-07
IL55474A0 (en) 1978-12-17
AR218332A1 (es) 1980-05-30
GB2004086B (en) 1982-04-07
JPS5450325A (en) 1979-04-20
CH638903A5 (de) 1983-10-14
SE7809344L (sv) 1979-03-07
CA1095299A (fr) 1981-02-10
FR2402227B1 (fr) 1984-11-09
GB2004086A (en) 1979-03-21
IL55474A (en) 1981-05-20
DE2838248C2 (de) 1983-05-19
BR7805856A (pt) 1979-04-24
SE438561B (sv) 1985-04-22
DE2838248A1 (de) 1979-03-15

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Legal Events

Date Code Title Description
ST Notification of lapse