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. 20, 2018
Filed:
Oct. 26, 2015
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Bai Bai, Guangdong, CN;
Xinhui Zhong, Guangdong, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd, Shenzhen Guangdong, CN;
Abstract
An optical alignment device and a spatial beam splitting prism thereof are provided. The optical alignment device includes a polarized UV light source and a spatial beam splitting prism including a light-transmissive substrate. At least one of top and bottom surfaces of the substrate has a prism structure which is disposed by areas to have at least two refraction directions. When light rays emitted from the polarized UV light source are incident perpendicular to the spatial beam splitting prism, the light rays in a same area are deflected along a same slanting direction after being refracted by the prism structure, and the light rays in neighboring areas are deflected along different slanting directions after being refracted by the prism structure. The invention can achieve the purpose of performing multi-area alignments by only one time UV light irradiation, and also can save production time, reduce production difficulty and thereby increase productivity.