FR2317841A2 - Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane - Google Patents

Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane

Info

Publication number
FR2317841A2
FR2317841A2 FR7521872A FR7521872A FR2317841A2 FR 2317841 A2 FR2317841 A2 FR 2317841A2 FR 7521872 A FR7521872 A FR 7521872A FR 7521872 A FR7521872 A FR 7521872A FR 2317841 A2 FR2317841 A2 FR 2317841A2
Authority
FR
France
Prior art keywords
picture
light source
photocell
plane
image
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.)
Pending
Application number
FR7521872A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7521872A priority Critical patent/FR2317841A2/en
Priority to DE19752557974 priority patent/DE2557974A1/en
Publication of FR2317841A2 publication Critical patent/FR2317841A2/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/36—Scanning of motion picture films, e.g. for telecine
    • H04N3/38—Scanning of motion picture films, e.g. for telecine with continuously moving film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/11—Scanning of colour motion picture films, e.g. for telecine

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Abstract

The light beam is in the above plane periodically deflected at a right angle to the picture motion. After focussing the deflected beam is directed to a stationary photocell which converts optical into electric pulses, so that the picture is horizontally scanned in lines from top to bottom, with each line passed before the photocell. The light source (1) is followed by a condenser (2) between it and the film (3). The slightly convergent beam then passes to a semitransparent mirror, which permits the beam to continue to more lenses and a reflecting prism. On return the mirror directs parts of the light to the photocell (14). A synchronisation device connects with an external television viewer.
FR7521872A 1974-12-24 1975-07-11 Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane Pending FR2317841A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7521872A FR2317841A2 (en) 1975-07-11 1975-07-11 Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane
DE19752557974 DE2557974A1 (en) 1974-12-24 1975-12-22 Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7521872A FR2317841A2 (en) 1975-07-11 1975-07-11 Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane

Publications (1)

Publication Number Publication Date
FR2317841A2 true FR2317841A2 (en) 1977-02-04

Family

ID=9157845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7521872A Pending FR2317841A2 (en) 1974-12-24 1975-07-11 Examination technique for moving picture - with continuous picture illuminated and image of light source focussed on a plane

Country Status (1)

Country Link
FR (1) FR2317841A2 (en)

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