IT960287B - Perfezionamento nei proiettori cinematografici - Google Patents

Perfezionamento nei proiettori cinematografici

Info

Publication number
IT960287B
IT960287B IT51139/72A IT5113972A IT960287B IT 960287 B IT960287 B IT 960287B IT 51139/72 A IT51139/72 A IT 51139/72A IT 5113972 A IT5113972 A IT 5113972A IT 960287 B IT960287 B IT 960287B
Authority
IT
Italy
Prior art keywords
improvement
cinematographic projectors
cinematographic
projectors
Prior art date
Application number
IT51139/72A
Other languages
English (en)
Original Assignee
Edutek Systems Corp
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 Edutek Systems Corp filed Critical Edutek Systems Corp
Application granted granted Critical
Publication of IT960287B publication Critical patent/IT960287B/it

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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • 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
    • G03B21/50—Control devices operated by the film strip during the run

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Projection Apparatus (AREA)
IT51139/72A 1971-07-02 1972-06-24 Perfezionamento nei proiettori cinematografici IT960287B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15943271A 1971-07-02 1971-07-02

Publications (1)

Publication Number Publication Date
IT960287B true IT960287B (it) 1973-11-20

Family

ID=22572593

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51139/72A IT960287B (it) 1971-07-02 1972-06-24 Perfezionamento nei proiettori cinematografici

Country Status (4)

Country Link
US (1) US3704065A (it)
DE (1) DE2233086A1 (it)
FR (1) FR2145202A5 (it)
IT (1) IT960287B (it)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025752A (en) * 1957-12-13 1962-03-20 Agfa Ag Control device for a motion picture camera
US3397937A (en) * 1965-06-07 1968-08-20 Technicolor Stop-frame mechanism for a motion picture projector

Also Published As

Publication number Publication date
US3704065A (en) 1972-11-28
FR2145202A5 (it) 1973-02-16
DE2233086A1 (de) 1973-01-18

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