US Patent Issued to Microsoft Technology Licensing on March 24 for "Waveguide combiner with reduced light leakage" (Washington, California Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,118, issued on March 24, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Waveguide combiner with reduced light leakage" was invented by Yarn Chee Poon (Sammamish, Wash.), Mark T. Bolas (Redmond, Wash.), Ishan Chatterjee (Redmond, Wash.), Bernard C. Kress (Redwood City, Calif.) and Yifei Zhang (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 narrowband reflectors comprising triple-notch filters...