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. 04, 2012
Filed:
Aug. 30, 2010
LI Tan, Tainan County, TW;
Hoi-sing Kwok, Tainan County, TW;
Li Tan, Tainan County, TW;
Hoi-Sing Kwok, Tainan County, TW;
Himax Display, Inc., Tainan Science-Based Industrial Park, Tainan, TW;
Abstract
An optical system and a projector utilizing the optical system can prevent tilted projection, hence ensuring that keystone distortion will not occur. The inventive optical system includes a lens group and a reflection layer. The lens group has a plurality of lens elements, and is utilized for guiding an input light beam. A shape of each of lens elements is substantially identical to a shape of a half of a rotationally symmetrical lens. The reflection layer is disposed under the lens group, and utilized for reflecting an incident light beam. As a result, the optical system is configured for guiding the output light beam derived from the input light beam to be projected onto an area substantially higher than a common line.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile