The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 1996
Filed:
Jun. 09, 1995
Donald W Iwerks, Burbank, CA (US);
Robert H Gurr, Tujunga, CA (US);
Iwerks Entertainmnet, Burbank, CA (US);
Abstract
The reversing film projection system employs film having images printed substantially side-by-side to allow presentation of one set of images in a forward direction and the adjacent images in rearward direction by moving the projection head and associated aperture plate and film guide laterally with respect to the lens and lamp house for display of the film images. In a first forward drive position, the projector motor drives the film in a forward direction with a first aperture of the aperture plate and associated first set of film images aligned with the optical train. Upon completion of the image presentation in the forward direction, the projection head is displaced laterally aligning a second aperture in the aperture plate and the associated second set of film images with the optical train, with the projection motor engaged in a reversed direction. Actuators for motion of the projection head, dowser controls and film transport drive are microprocessor controlled employing absolute frame count for various film presentations.