Patent · US Active

Projector architecture incorporating artifact mitigation

US11428859B2 · kind B2 · utility

9Cited by

31References

17Claims

0Family size

Assignee

Magic Leap, Inc. · US

Inventors

Kevin Curtis · New Providence, US
Hui-Chuan Cheng · Pembroke Pines, US
Paul M. Greco · Coral Springs, US
William Hudson Welch · Fort Lauderdale, US
Eric C. Browy · Coral Springs, US
Miller H. Schuck · Erie, US
Bradley Jay Sissom · Boulder, US

Key dates

Filing date	Feb 21, 2020
Grant date	Aug 30, 2022
Priority date	—
Expiry date	Sep 25, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04N9/3144
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An artifact mitigation system includes a projector assembly and a set of imaging optics optically coupled to the projector assembly. The artifact mitigation system also includes an eyepiece optically coupled to the set of imaging optics. The eyepiece includes a diffractive incoupling interface. The artifact mitigation system further includes an artifact prevention element disposed between the set of imaging optics and the eyepiece. The artifact prevention element includes a linear polarizer, a first quarter waveplate disposed adjacent the linear polarizer, and a color select component disposed adjacent the first quarter waveplate.

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