18883836. Diffractive Waveguide Combiners with Compensated-Wrap for Rainbow Mitigation (Applied Materials, Inc.)
Diffractive Waveguide Combiners with Compensated-Wrap for Rainbow Mitigation
Organization Name
Inventor(s)
Simon Lorenzo of Santa Clara CA US
Kevin Messer of Mountain View CA US
Samarth Bhargava of Saratoga CA US
Diffractive Waveguide Combiners with Compensated-Wrap for Rainbow Mitigation
This abstract first appeared for US patent application 18883836 titled 'Diffractive Waveguide Combiners with Compensated-Wrap for Rainbow Mitigation
Original Abstract Submitted
Embodiments herein are generally directed to a waveguide display assembly and a near-eye display system incorporating the waveguide display assembly. In an embodiment, the waveguide display includes a light engine, a waveguide combiner, an input coupling grating, and one or more coupling gratings exposed to an ambient environment of the waveguide display assembly. The waveguide combiner extends across a user's eye at a wrap angle θrelative to a waveguide plane, and the light engine is configured to project light toward the input coupling grating at a compensation angle θso as to increase the grating vector of the exposed gratings and reduce the angles and wavelengths at which light can be diffracted and coupled by the exposed grating into the waveguide combiner to the user's eye.
