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:
Mar. 28, 2023
Filed:
Sep. 11, 2020
Magic Leap, Inc., Plantation, FL (US);
Vikramjit Singh, Pflugerville, TX (US);
Kang Luo, Austin, TX (US);
Xiaopei Deng, Cedar Park, TX (US);
Shuqiang Yang, Austin, TX (US);
Frank Y. Xu, Austin, TX (US);
Kevin Messer, Fort Lauderdale, FL (US);
Magic Leap, Inc., Plantation, FL (US);
Abstract
Diffraction gratings provide optical elements in head-mounted display systems to, e.g., incouple light into or out-couple light out of a waveguide. These diffraction gratings may be configured to have reduced polarization sensitivity. Such gratings may, for example, incouple or outcouple light of different polarizations with similar level of efficiency. The diffraction gratings and waveguides may include a transmissive layer and a metal layer. The diffraction grating may comprises a blazed grating.