With Gate Moving And/or Holding Structure Patents (Class 352/229)
  • Patent number: 7828442
    Abstract: A film-feeding mechanism is provided having at least one conveying claw for intermittently transporting a motion picture film that is provided with perforations which extend parallel to the lateral edges thereof. Said film-feeding mechanism further includes at least one locking claw whose tips engage into a perforation in order to ensure picture steadiness, and a film-guiding device that aligns the motion picture film. Lateral film-guiding elements of the film-guiding device are disposed so as to be at least partly movable relative to the lateral edges of the motion picture film.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: November 9, 2010
    Assignee: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
    Inventor: Walter Trauninger
  • Patent number: 7393105
    Abstract: A film guide for a movie camera having an image window which is arranged in a recording beam path of the movie camera, a gripper platform which is supported on the image window, between whose mutually facing film planes a film channel is formed through which a movie film is moved by a film transport mechanism, and a spacing window which is connected to the gripper platform. The spacing window is supported on the image window in such a manner that the film channel narrows to form a film gap between the mutually facing film planes of the image window and the spacing window.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: July 1, 2008
    Assignee: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
    Inventors: Fritz Gabriel Bauer, Josef Handler
  • Patent number: 6717615
    Abstract: The invention relates to a device for adjustment of a line sensor in a film scanner. A glass disk is arranged between each emitting surface of a color separator and the respective line sensor. Said disk may be rotated in two directions, out of a plane lying perpendicular to the beam direction, such that the light emitted from the glass disc is displaced, depending on the angle of the rotation.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: April 6, 2004
    Assignee: Thomson Licensing S.A.
    Inventor: Rudolf Wulf
  • Patent number: 6588904
    Abstract: A system for compensating for film flutter in a motion picture film projector during projection of a motion picture film comprising multiple film image frames is described, the system comprising sensing the position of film image frames in a film gate of the projector relative to the focal plane of the projection lens assembly of the projector as the film image frames are being projected, and correcting the position of the film in the film gate of the projector or the position of the focal plane of the projection lens assembly to reduce the distance between the film image and the focal plane of the projection lens assembly as the film image frames are being projected, wherein the correction of the position of an individual film image frame in the film gate or that of the position of the focal plane of the projection lens assembly during projection of the individual frame image is based on the actual sensed position of the individual film image frame in the film gate, or on the position of a previously project
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: July 8, 2003
    Assignee: Eastman Kodak Company
    Inventors: Roger A. Morton, Christopher L. Dumont, Kenneth J. Repich, Alan T. Brewen
  • Patent number: 6450644
    Abstract: A system and method for registering the frames of film with respect to an aperture in a motion picture projector. A registration reference mark is applied to each frame corresponding to the location of the frame on the film. When the film is intermittently stopped in the projector's film gate, the registration reference mark is read to determine the location of that frame relative to the immediately preceding frame. If the frame in the gate is misregistered, the gate is moved to correctly register the frame prior to projection. By properly registering the frames, the “jitter”and “weave” associated with conventional projectors is eliminated and resolution of the projected film image is enhanced.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: September 17, 2002
    Assignee: Maxivision Cinema Technology
    Inventors: Dean K. Goodhill, Ty Safreno, Don P. Behrns
  • Patent number: 5337120
    Abstract: An apparatus for driving a scanning gate of a photographic film scanning apparatus utilizes a reversible m s , stepping motor, and a system driven by the motor for moving the gate in a pendulum-like manner. The means comprises a shaft, a gear sector fixedly connected on the shaft and a crank arm fixedly connected on the shaft so as to operatively engage the scanning gate, and a worm configured to be driven by the motor. A biasing device is arranged between the gear sector and a chassis of the scanning apparatus to maintain a positive engagement between the worm and the gear sector. Additional biasing devices are connected between the crank arm and the gate to provide for adjustment of the gate about two axes.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: August 9, 1994
    Assignee: Eastman Kodak Company
    Inventors: Eric P. Hochreiter, Franklin D. Ehrne, William I. Morris, Frederick J. Schwab
  • Patent number: 5323206
    Abstract: A chassis for mounting components in a photographic film scanning apparatus cabinet includes a planar base member, and bearing mounts integral with the base member. The mounts sized and configured to hold bearings against which an arcuate wear plate of a gate of the scanning apparatus registers. The gate is configured to move in a pendulum-like manner across the bearings, with an aperture in the planar member for rotatably accommodating a shaft of a drive system for moving the gate in the pendulum-like manner. Mounts integral with the planar base member are provided for holding an optical system of the scanning apparatus. A continuous integral rib is arranged on the rear surface of the planar member is tuned to a higher natural frequency than that of the scanning frequency for vibrationally isolating the planar base member from other components in the cabinet.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: June 21, 1994
    Assignee: Eastman Kodak Company
    Inventors: Eric P. Hochreiter, Franklin D. Ehrme, Terrence L. Fisher, Sr.
  • Patent number: 4973150
    Abstract: A rigid cylinder is rotated about its axis of symmetry at a relatively high rate of speed by means of a motor. Around a portion of the circumference of the rotating cylinder is wrapped a flexible imaging medium such as photographic film, to which is applied longitudinal tension through means of a film transport. The film conforms to the curvature of the drum, but is held a small distance above the surface of the cylinder in equilibrium between the aerodynamic forces created by the rotating cylinder and the applied tension of the film transport, thus effecting a compliant surface air bearing. A scanning beam is used to write on the film in the line direction. Longitudinal movement of the film is used to affect scanning in the page direction.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventor: Robert C. Bryant
  • Patent number: 4973151
    Abstract: A rigid transparent cylinder is rotated about its axis of symmetry at a relatively high rate of speed by means of a motor. Around a portion of the circumference of the rotating cylinder is wrapped a flexible imaging medium such as photographic film, to which is applied longitudinal tension through means of a film transport. The film conforms to the curvature of the drum, but is held a small distance above the surface of the cylinder in equilibrium between the aerodynamic forces created by the rotating cylinder and the applied tension of the film transport, thus effecting a compliant surface air bearing. A stationary lamp within or behind the transparent cylinder passes light through the cylinder to project an image from the film onto a scanning element by use of a conventional optical system.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventor: Robert C. Bryant
  • Patent number: 4933693
    Abstract: A camera is adapted for use with a film cassette in which a film spool is rotatable to unwind a filmstrip off the spool to automatically thrust a non-protruding leader portion of the filmstrip from the cassette to enable the leader portion to be propelled in the camera over an exposure opening and to a film take-up means. The filmstrip including the leader portion has a natural tendency to curve crosswise. In the camera, a pressure plate is resiliently biased to an operative position for pressing the filmstrip flat at the exposure opening. A restraining device is operated to hold the pressure plate in a retracted position sufficiently removed from the exposure opening. This permits the filmstrip to assume its natural cross-curvature in order to significantly increase the longitudinal strength of the leader portion to facilitate its being propelled over the exposure opening and to the film take-up means responsive to unwinding rotation of the film spool.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: June 12, 1990
    Assignee: Eastman Kodak Company
    Inventor: David E. Beach