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:
Jul. 15, 2014
Filed:
Mar. 12, 2013
Industrial Technology Research Institute, Hsinchu, TW;
Min-Kai Lee, Tainan, TW;
Yu-Chung Lin, Tainan, TW;
Cheng-Huan Chen, Hsinchu, TW;
Sung-Ho Liu, Kaohsiung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A beam generating apparatus includes a laser light source, a speckle suppressing module, a light homogenizing module and a driving unit. The laser light source outputs a laser beam. The speckle suppressing module includes two biconic lenses and a diffuser. The first biconic lens is disposed on a transmission path of the laser beam. The diffuser is located on the transmission path of the laser beam between the first and second biconic lenses. The light homogenizing module is disposed on the transmission path of the laser beam from the second biconic lens. The driving unit drives the diffuser to move with respect to the laser beam so that the ratio of the Mof the laser beam exiting from the second biconic lens in a first direction to the Mthereof in a second direction is greater than 2, wherein the two directions are substantially perpendicular to each other.