Configurations are disclosed for a health system to be used in various healthcare
applications, eg, for patient diagnostics, monitoring, and/or therapy. The health system may …

US11644669B2 - Depth based foveated rendering for display systems - Google Patents
US11644669B2 - Depth based foveated rendering for display systems - Google Patents …

Example display devices include a waveguide configured to propagate visible light under
total internal reflection in a direction parallel to a major surface of the waveguide. The …

In one aspect, an optical device comprises a plurality of waveguides formed over one
another and having formed thereon respective diffraction gratings, wherein the respec tive …

Examples of eye-imaging apparatus using diffractive optical elements are provided. For
example, an optical device comprises a substrate having a proximal surface and a distal …

A head mounted display system can include a camera, at least one waveguide, at least one
coupling optical element that is configured such that light is coupled into said waveguide …

Examples of diffractive devices comprise a cholesteric liquid crystal (CLC) layer comprising
a plurality of chiral structures, wherein each chiral structure comprises a plurality of liquid …

(57) ABSTRACT A wearable augmented reality head-mounted display system can be
configured to pass light from the world forward a wearer wearing the head-mounted system …

The present disclosure relates to display systems and, more particularly, to augmented
reality display systems. A diffrac tion grating includes a plurality of different diffracting zones …

An optical device includes a liquid crystal layer having a first plurality of liquid crystal
molecules arranged in a first pattern and a second plurality of liquid crystal molecules …