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:
Nov. 07, 2006
Filed:
Mar. 22, 2004
Dae-sik Kim, Suwon-si, KR;
Kun-ho Cho, Suwon-si, KR;
Sung-ha Kim, Seoul, KR;
Hee-joong Lee, Anyang-si, KR;
Dae-sik Kim, Suwon-si, KR;
Kun-ho Cho, Suwon-si, KR;
Sung-ha Kim, Seoul, KR;
Hee-joong Lee, Anyang-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A projection system that can adjust color balance of incident light is provided. The projection system includes a light source, a spatial filter, an optical separator, a scrolling unit, a light valve, and a projecting lens unit. The spatial filter has a slit to adjust a divergent angle or etendue of light emitted from the light source. The optical separator separates light passing through the spatial filter according to color of incident light. The scrolling unit has one or more spiral lens discs, which are formed by spirally arranging cylindrical lens cells, rotate, and scroll color beams separated by the optical separator. The light valve processes light passing through the scrolling unit according to an image signal and forms an image. The projecting lens unit magnifies the image formed on the light valve and projects the magnified image onto a screen.