Inventor

WANG MENGFEI

CA47 patents

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

WANG MENGFEI

META PLATFORMS TECH LLC

Thin liquid crystal stack for polarization conversion

System and method for fabricating polarization holograms

Switchable Pancharatnam-Berry phase grating stack

Method for birefringence patterning

Optical combiner with uniform illuminance throughput

Polarization sensitive optical diffuser

Optical system for multi-view eye-tracking

PVH in-band chromatic correction using metasurface

Display with image light steering

Optical device having reduced diffraction artifacts for eye-tracking

Light guide display assembly for providing expanded field of view

Optical combiner with uniform illuminance throughput

Patterned anisotropic films and optical elements therewith

Optical device based on tunable polarization volume hologram

Heliconical liquid crystal polarization hologram and device including the same

Liquid crystal polarization hologram with enhanced angular luminance uniformity and system including the same

Optical element having multiple layers for reducing diffraction artifacts

Peripheral see-through pancake lens assembly and display device with same

Narrow-band peripheral see-through pancake lens assembly and display device with same

System and method for interference fringe stabilization

System and method for fabricating liquid crystal polarization holograms

Apochromatic liquid crystal polarization hologram device

Optical combiner including polarization-selective elements and switchable half-wave plates for pupil steering

FACEBOOK TECH LLC

Switchable reflective circular polarizer in head-mounted display

Reflective circular polarizer for head-mounted display

Display device with diffusive display and see-through lens assembly

Optical device having reduced diffraction artifacts for eye-tracking

Apparatus, systems, and methods for display devices including local dimming

Liquid crystal cells for polarization rotation

Self-compensated liquid crystal polymer coatings on curved optical surface

Light guide display assembly for providing expanded field of view

Polarization sensitive optical diffuser

Foveated display system

Pupil steering for a pupil expander

Varifocal polarization sensitive diffusive display

Switchable reflective circular polarizer in head-mounted display

Liquid crystal cells for polarization rotation

Achromatic optical device based on birefringent materials having positive and negative birefringence dispersions

Optical system having an improved signal-to-noise ratio of eye-tracking

Nanoimprinted microlens array and wavefront sensor based thereon

TORONTO DOMINION BANK

Methods and systems for controlling access to a protected resource

Methods and systems for controlling access to a protected resource

Methods and systems for controlling access to a protected resource

Methods and systems for controlling access to a protected resource

Methods and systems for controlling access to a protected resource

Methods and systems for controlling access to a protected resource

UNIV KENT STATE OHIO

Recursive photoalignment method