Inventor

CALAFIORE GIUSEPPE

US84 patents

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

CALAFIORE GIUSEPPE

FACEBOOK TECH LLC

Techniques for controlling effective refractive index of gratings

Fabrication of self-aligned grating elements with high refractive index for waveguide displays

Gratings with variable depths formed using planarization for waveguide displays

Multi-layered substrates for waveguide displays

Diffractive gratings for eye-tracking illumination through a light-guide

Anisotropically formed diffraction grating device

Diffraction grating with a variable refractive index using multiple resins

High refractive index gratings for waveguide displays manufactured by self-aligned stacked process

Waveguide having a phase-matching region

Gray-tone electron-beam lithography

Diffraction grating with a variable refractive index formed using an energy gradient

Continuous liquid crystal alignment patterns for geometric phase optics

Diffraction grating with a variable refractive index using ion implantation

Slanted surface relief grating for rainbow reduction in waveguide display

Gratings with variable etch heights for waveguide displays

Thin waveguide imager

Optical system and method for providing compressed eyebox

Rainbow reduction in waveguide displays

Display device with waveguide-based talbot illuminator

Slab waveguide and projector with intermodal coupling

Gratings with variable depths formed using planarization for waveguide displays

Thin waveguide wavelength-selective projector

Gratings with variable etch heights for waveguide displays

Gratings with variable depths for waveguide displays

Tunable shrinkage process for manufacturing gratings

Nanoparticle dispersion for increasing optical index of refraction

Multi-layered substrates for waveguide displays

Outward coupling suppression in waveguide display

Manufacturing three-dimensional diffraction gratings by selective deposition or selective etching

Reducing demolding stress at edges of gratings in nanoimprint lithography

Cascaded pupil-replicating waveguides

Anisotropically formed diffraction grating device

META PLATFORMS TECH LLC

Gratings with variable depths formed using planarization for waveguide displays

In-field illumination for eye tracking

Switchable diffractive optical element and waveguide containing the same

Diffraction grating with a variable refractive index formed using an energy gradient

Device including diffractive optical element

Optical system and method for providing expanded field of view

Multi-layered substrates for waveguide displays

Lightguide with radial pupil replication and visual display based thereon

Techniques for reducing surface adhesion during demolding in nanoimprint lithography

Techniques for manufacturing slanted structures

Thin waveguide wavelength-selective projector

Optical system and method for providing expanded field of view

Photonic power converter light transport

Cascaded pupil-replicating waveguides

Display device with transparent illuminator

Display with image light steering

Talbot pattern illuminator and display based thereon

OCULUS VR LLC

Variable-pitch liquid crystal diffraction grating