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:
Oct. 07, 2025
Filed:
Jan. 16, 2025
University of Central Florida Research Foundation, Inc., Orlando, FL (US);
Zhenyi Luo, Union Park, FL (US);
Yuqiang Ding, Union Park, FL (US);
Shin-Tson Wu, Orlando, FL (US);
Yun Wang, Bellevue, WA (US);
Fenglin Peng, Redmon, WA (US);
Guohua Wei, Redmond, WA (US);
Abstract
Systems and methods to improve efficiency of in-coupling into, propagating through, and out-coupling from, electromagnetic waves (e.g., in a visible light wavelength range), a waveguide system arrangement. The waveguide system arrangement includes an illumination assembly; an in-coupler, a waveguide substrate, and a parallelepiped prisms array structure, which efficiently couple electromagnetic waves (e.g., in a visible light wavelength range), horizontally propagating through the waveguide substrate, and the parallelepiped prisms array structure out-couples the electromagnetic waves (e.g., in a visible light wavelength range), from the waveguide substrate. In one implementation, the waveguide system arrangement includes an augmented reality display system and the out-coupled light provides a virtual image that is overlaid on an image of a real object with both images seen by a viewer's eye. An ultracompact liquid-crystal on silicon (LCoS) display system is also disclosed. The LCoS display system exhibits excellent light uniformity, optical efficiency, and contrast ratio.