Picture Carriers Patents (Class 352/232)
  • Patent number: 6425666
    Abstract: Disclosed is a film delivery and recovery stabilization system for platter-type movie projection systems which provides a stratum material for dissipating static charge which accumulates within the film media and a plurality of retaining members selectively positioned at the periphery of a spool of film. The retaining members encasing magnetic elements that magnetically attach to a magnetic material which has been placed in a variable number of radial slots in the static dissipating stratum material.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 30, 2002
    Inventor: Andrew Marglin
  • Patent number: 5543869
    Abstract: Systems are described for precisely positioning motion picture film frames at a camera film gate by the use of registration pins that project into film perforations, where the film frames are spaced by 2.5 perforation spacings, or perf spacings instead of the standard 4 perforations. In one system, the film is advanced a first time in steps of 5 perf spacings each to photograph alternate perf spacings film frames, (that are spaced by 2.5 perf spacings) perf spacings with the film gate mask being offset by 0.5 during a second pass when the film is advanced in steps of 5 perf. spacings each. In another system, the registration mechanism includes two sets of registration pins which are alternately projected into alternate film frames as the film is advanced in steps of 2.5 perf spacings. In another system, additional holes are punched into the standard film stock, so there are holes or perforations located at 2.5 perf. spacings along the length of the film.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: August 6, 1996
    Inventor: Richard Vetter
  • Patent number: 5216540
    Abstract: A method of manufacturing a die for a picture carrier intended for creating the impression of a movement when the picture is projected or illuminated on at least certain parts of the picture or projection, by making use of a polarizer and/or an analyzer and a picture carrier treated accordingly, whereby use is made of a laser for locally working the die.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: June 1, 1993
    Inventor: Christianus W. M. Boelens