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:
Sep. 18, 2007
Filed:
Aug. 14, 2003
Sadao Masubuchi, Chofu, JP;
Masafumi Yokoyama, Tokyo, JP;
Makoto Yasunaga, Kawagoe, JP;
Masaaki Matsunaga, Tokyo, JP;
Sadao Masubuchi, Chofu, JP;
Masafumi Yokoyama, Tokyo, JP;
Makoto Yasunaga, Kawagoe, JP;
Masaaki Matsunaga, Tokyo, JP;
Citizen Holdings Co., Ltd., Nishi-Tokyo, JP;
Abstract
A color liquid crystal exposure apparatus includes a color light source for emitting a plurality of colored light beams, a liquid crystal shutter having a plurality of liquid crystal pixels arrayed in a direction orthogonal to the direction of the relative movement, and a driving circuit for switching the color light source from one color to another, and for driving the plurality of liquid crystal pixels. The plurality of liquid crystal pixels are divided into a plurality of pixel groups. The liquid crystal pixels in each pixel group are arrayed, one displaced from another by a prescribed distance, in the direction orthogonal to the direction of the relative movement. The driving circuit drives the plurality of liquid crystal pixels in time-division fashion so that the liquid crystal pixels having the same displaced position in the plurality of pixel groups are driven at one time.