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:
Feb. 17, 2009
Filed:
Nov. 09, 2006
Jia-bin Huang, Hsinchu, TW;
Chi-chui Yun, Hsinchu, TW;
Chu-ming Cheng, Hsinchu, TW;
S-wei Chen, Hsinchu, TW;
Jia-Bin Huang, Hsinchu, TW;
Chi-Chui Yun, Hsinchu, TW;
Chu-Ming Cheng, Hsinchu, TW;
S-Wei Chen, Hsinchu, TW;
Young Optics Inc., Hsinchu, TW;
Abstract
An illumination system having a light source, an integration rod and a color wheel is provided. The light source is suitable for providing a light beam. The light integration rod and the color wheel are disposed in the transmission path of the light beam. The color wheel is disposed between the light source and the light integration rod. The light integration rod has a light input end adjacent to the color wheel and a light output end opposite the light input end. The light integration rod has two indentations at the light input end to form an airflow channel. The noise caused by the rotating color wheel is reduced through the airflow channel.