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. 24, 2026
Filed:
May. 31, 2023
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Yarn Chee Poon, Sammamish, WA (US);
Mark T. Bolas, Redmond, WA (US);
Ishan Chatterjee, Redmond, WA (US);
Bernard C. Kress, Redwood City, CA (US);
Yifei Zhang, Redmond, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Optical filters are disclosed for reducing leakage of light used for virtual images from a mixed-reality head-mounted display (HMD) device having a waveguide combiner. The optical filters include spectral-sensitive wideband and narrowband reflectors comprising triple-notch filters or single-notch filters that reflect forward-propagating virtual image light back to a user's eyes. The optical filters further include light deflectors having planar and curved configurations comprising volume Bragg gratings (VBGs), liquid crystal Bragg gratings, and partially-reflective mirror arrays. A light deflector steers forward-propagating virtual image light to impart an angular change in propagation direction. The steered light is absorbed and/or diffused by structures in the HMD device and/or deflected to prevent the outward appearance of virtual image overlay with the HMD device user's eyes.