Television – Special applications – Film – disc or card scanning
Patent
1996-06-11
1998-09-29
Au, Amelia
Television
Special applications
Film, disc or card scanning
348 97, 348 98, 348110, 348111, H04N 718
Patent
active
058152024
ABSTRACT:
A method and apparatus for scanning an image using a moving lens scanning system is described. The present invention moves film through a pin registered film gate, creating a projected image. A light source exposes images on the film in the film gate. The projected image passes through a lens and exposes a sensor, for example, a CCD camera. The sensor converts the section of the projected image exposed to it into electronic signals, and transfers that data out of the sensor. In one embodiment, the position of the film gate relative to the lens and sensor is adjustable to accommodate different size film formats. A rectangular sensor is used having a width narrower than the projected image width, and a height corresponding to the height of the projected image. To expose an entire film frame image to the sensor, the lens moves along an axis parallel to the width of the film frame so as to move the projected image across the sensor at a predetermined rate sufficient to allow the sensor to capture each component of the projected image. The present invention thereby scans film images using a sensor substantially smaller than the projected image size, and can scan a variety of film formats without moving or changing the size of the sensor.
REFERENCES:
patent: 4205337 (1980-05-01), Milward
patent: 4255764 (1981-03-01), Howe
patent: 4319280 (1982-03-01), Roos et al.
patent: 4330793 (1982-05-01), Stemme et al.
patent: 4485406 (1984-11-01), Brownstein
patent: 4639787 (1987-01-01), Isogai et al.
patent: 4729015 (1988-03-01), Wagensonner
patent: 4821073 (1989-04-01), Backus et al.
patent: 4920419 (1990-04-01), Easterly
patent: 5067020 (1991-11-01), Funston
patent: 5165068 (1992-11-01), Baldwin
patent: 5249056 (1993-09-01), Foung et al.
patent: 5519442 (1996-05-01), Asami et al.
patent: 5568273 (1996-10-01), Sato et al.
Davis, Mike et al., High Resolution CCD Film Scanner for Special Effects Applications, (Industrial Light and Magic, 1991).
Au Amelia
Pixar
Rao Anand S.
LandOfFree
Method and apparatus for scanning an image using a moving lens s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for scanning an image using a moving lens s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for scanning an image using a moving lens s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-690511