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. 17, 2004
Filed:
Apr. 14, 2003
Applicant:
Inventors:
Chih-Ping Wu, Taipei, TW;
Shih-Lung Hsu, Taoyuan, TW;
Assignee:
Benq Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 ;
U.S. Cl.
CPC ...
G02B 7/02 ;
Abstract
The present invention provides an optical system. The optical system includes a first optical apparatus, a second optical apparatus, and a thrust member. A side of the first optical apparatus has a rest. The second optical apparatus is disposed between the first optical apparatus and the thrust member. With the optical system, the second optical apparatus is pressed against the rest by means of the force of the thrust member to keep the relative position between the first optical apparatus and the second optical apparatus stable.