Inventor

HUANG NINGFENG

US25 patents

⚠️ This page may combine multiple inventors who share the name “HUANG NINGFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUANG NINGFENG

FACEBOOK TECH LLC

Angular selective grating coupler for waveguide display

Waveguide having a phase-matching region

Transmission improvement for flat lens based AR/VR glasses

Slanted surface relief grating for rainbow reduction in waveguide display

Non-uniformly patterned photonic crystal structures with quantum dots for pixelated color conversion

Spatially multiplexed volume Bragg gratings with varied refractive index modulations for waveguide display

Optical system and method for providing compressed eyebox

Directional color conversion using photonic crystals with quantum dots

Rainbow reduction in waveguide displays

Display waveguide assembly with color cross-coupling

Outward coupling suppression in waveguide display

Cascaded pupil-replicating waveguides

Outward coupling suppression in waveguide display

Outward coupling suppression in waveguide display

Waveguide with coherent interference mitigation

Field of view expansion by color separation

Waveguide with coherent interference mitigation

Anisotropic diffraction grating and waveguide

META PLATFORMS TECH LLC

Reclamation of energy leaking from waveguides

Lightguide with radial pupil replication and visual display based thereon

Spatially multiplexed volume Bragg gratings with varied refractive index modulations for waveguide display

Multi-laser illuminated mixed waveguide display with volume Bragg grating (VBG) and mirror

Cascaded pupil-replicating waveguides

Directional color conversion using photonic crystals with quantum dots

Optical system and method for providing compressed eyebox