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. 16, 2006
Filed:
Mar. 31, 2004
Heng-chun Huang, MiaoLi, TW;
Jauh-jung Yang, Taipei, TW;
Jung-yan Huang, Hsinchu, TW;
Ming-yueh Liu, Taipei, TW;
Chuan-kang Mu, TaiChung, TW;
Heng-Chun Huang, MiaoLi, TW;
Jauh-Jung Yang, Taipei, TW;
Jung-Yan Huang, Hsinchu, TW;
Ming-Yueh Liu, Taipei, TW;
Chuan-Kang Mu, TaiChung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention relates to a high-transmission polarization module composed of sub-wavelength structures, which comprises: a transmission substrate and a plurality of collimation units. The transmission substrate possesses a top and a bottom surfaces. The top surface has a plurality of projecting and sunken parts, wherein the sunken part has a first sub-wavelength structure while the projecting part has a second sub-wavelength structure. The collimation units are arranged on the bottom surface according to the positions of the sunken parts capable of guiding the light into the sunken part. The first sub-wavelength structure is capable of separating the light with different polarizations while the second sub-wavelength structure is capable of shifting the phase of the light so that the light can pass the polarization module with a high efficiency and producing a light with a specific polarization.