Patent · US Active

Eyepieces for use in wearable display systems

US11899216B2 · kind B2 · utility

0Cited by
15References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 7, 2022
Grant dateFeb 13, 2024
Priority date—
Expiry dateDec 7, 2042

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.