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:
Aug. 27, 1996
Filed:
Jul. 29, 1994
Yoshio Haraguchi, Kanagawa, JP;
Minoru Okuda, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A liquid-crystal projector with a light source, a projection lens set, and a liquid-crystal panel arranged between the light source and the projection lens set for displaying a video signal included in an odd field and a video signal included in an even field alternately at a predetermined period of time by the same pixels thereof in synchronization with a vertical synchronizing signal in the video signal. The liquid-crystal projector includes a wedge-shaped prism rotating device arranged between the projection lens set and a screen. The wedge-shaped prism rotating device includes an electromagnetic solenoid for converting a reciprocating motion of a solenoid plunger to a periodic rotational motion of a wedge-shaped prism about its optic axis clockwise and counterclockwise. The liquid-crystal projector also includes a control unit associated with the prism rotating device, for producing the periodic rotational motion in synchronization with the vertical synchronizing signal, so that both projected positions of picture images on the screen, each image included in either one of the odd and even fields, are offset to each other by one-pixel.