Apparatus for converting cinematographic pictures into video sig

Details Apparatus for converting cinematographic pictures into video sig Apparatus for converting cinematographic pictures into video sig

1980-02-25

1982-03-09

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

350 54, H04N 336, H04N 911

Patent

active

043192807

ABSTRACT:
An apparatus is described for converting cinematographic images into video signals. The film gate in which a frame to be scanned is located is illuminated uniformly. The film is scanned by means of a rotatable scanning mirror, which with the aid of an imaging system images one line of the film frame onto one row (three rows for color film) of radiation sensitive detectors. The detectors of a row are read sequentially. The illumination beam has a large aperture angle in a first plane transverse to the direction of film transport and a small aperture angle in a plane transverse to the first plane. The film movement is detected with the aid of a sprocket hole detection system, in which an elongate narrow light spot, whose longitudinal direction is transverse to the direction of film transport, is projected onto the strip of film with the sprocket holes. The position of the scanning mirror is detected with the aid of two gratings of special shape.

REFERENCES:
patent: 3794755 (1974-02-01), Metzger
Childs et al, "An Experimental Telecine Using a Line-Array CCD Sensor," SMPTE Journal, vol. 87, No. 4, Apr. 1978, pp. 209-213.

Affiliated with

Also associated with

Rating

Apparatus for converting cinematographic pictures into video sig does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for converting cinematographic pictures into video sig, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for converting cinematographic pictures into video sig will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1843901