Patent · US Active

Eyepieces for use in wearable display systems

US11543664B2 · kind B2 · utility

0Cited by

15References

27Claims

0Family size

Assignee

Magic Leap, Inc. · US

Inventors

Dianmin Lin · Los Altos, US
Pierre St. Hilaire · Belmont, US

Key dates

Filing date	Oct 28, 2020
Grant date	Jan 3, 2023
Priority date	—
Expiry date	Jul 3, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0178
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An example a head-mounted display device includes a light projector and an eyepiece. The eyepiece is arranged to receive light from the light projector and direct the light to a user during use of the wearable display system. The eyepiece includes a waveguide having an edge positioned to receive light from the display light source module and couple the light into the waveguide. The waveguide includes a first surface and a second surface opposite the first surface. The waveguide includes several different regions, each having different grating structures configured to diffract light according to different sets of grating vectors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.