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:
May. 13, 2014
Filed:
Jul. 19, 2011
Jui-ping Chang, Hsinchu, TW;
Hui-ping Chen, Hsinchu, TW;
Hsin-tai Wu, Hsinchu, TW;
Cheng-wei Tien, Hsinchu, TW;
Jui-Ping Chang, Hsinchu, TW;
Hui-Ping Chen, Hsinchu, TW;
Hsin-Tai Wu, Hsinchu, TW;
Cheng-Wei Tien, Hsinchu, TW;
Young Optics Inc., Hsinchu, TW;
Abstract
A projection apparatus includes an illumination system, a light valve, a light beam adjusting element, and a light reflective unit. The illumination system is capable of providing an illumination beam. The light valve, the light beam adjusting element, and the light reflective unit are disposed on a transmission path of the illumination beam. The light valve is disposed between the illumination system and the light reflective unit. The light valve has an active surface for being capable of converting the illumination beam into an image beam. The light beam adjusting element is disposed on the transmission path of the illumination beam and between the illumination system and the light valve. The light beam adjusting element includes at least one lens having a first optical axis. The first optical axis and a normal vector of the active surface are not perpendicular to each other.