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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12164134 B1

PDFFull Text
Date of Patent:
Dec. 10, 2024

Filed:

Sep. 22, 2023

Method of reducing optical artifacts

Applicant:

Magic Leap, Inc., Plantation, FL (US);

Inventors:

Kevin Richard Curtis, Boulder, CO (US);

Hui-Chuan Cheng, Cooper City, FL (US);

Paul M. Greco, Parkland, FL (US);

William Hudson Welch, Fort Lauderdale, FL (US);

Eric C. Browy, Meridian, ID (US);

Miller Harry Schuck, III, Erie, CO (US);

Bradley Jay Sissom, Boulder, CO (US);

Assignee:

Magic Leap, Inc., Plantation, FL (US);

Attorney:

KILPATRICK TOWNSEND & STOCKTON LLP

Primary Examiner:

Jerry L Brooks

Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 5/18 (2006.01); G02B 5/30 (2006.01); G02B 6/293 (2006.01); G02B 6/34 (2006.01); G02B 7/00 (2021.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G02B 27/10 (2006.01); G02B 27/28 (2006.01); G02C 5/16 (2006.01); G02C 11/00 (2006.01); G06F 1/16 (2006.01); G06F 1/20 (2006.01); G06F 3/01 (2006.01); G06F 3/147 (2006.01); G09G 3/00 (2006.01); G09G 3/20 (2006.01); H04N 9/31 (2006.01); H05K 7/20 (2006.01); G02B 27/30 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0016 (2013.01); G02B 5/1823 (2013.01); G02B 5/1857 (2013.01); G02B 5/1866 (2013.01); G02B 5/1871 (2013.01); G02B 5/3025 (2013.01); G02B 6/0023 (2013.01); G02B 6/0035 (2013.01); G02B 6/0036 (2013.01); G02B 6/0038 (2013.01); G02B 6/005 (2013.01); G02B 6/0076 (2013.01); G02B 7/008 (2013.01); G02B 27/0018 (2013.01); G02B 27/0081 (2013.01); G02B 27/017 (2013.01); G02B 27/0172 (2013.01); G02B 27/0176 (2013.01); G02B 27/1086 (2013.01); G02B 27/283 (2013.01); G02C 5/16 (2013.01); G02C 11/10 (2013.01); G06F 1/163 (2013.01); G06F 1/203 (2013.01); G06F 1/206 (2013.01); G06F 3/011 (2013.01); G06F 3/013 (2013.01); G06F 3/147 (2013.01); G09G 3/001 (2013.01); G09G 3/002 (2013.01); G09G 3/2003 (2013.01); G09G 3/2044 (2013.01); H04N 9/3102 (2013.01); H04N 9/3164 (2013.01); H05K 7/20963 (2013.01); G02B 6/29325 (2013.01); G02B 6/34 (2013.01); G02B 2027/0114 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/012 (2013.01); G02B 2027/0125 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01); G02B 27/30 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/045 (2013.01); G09G 2340/0464 (2013.01); H04N 9/3144 (2013.01);
Abstract

A method of reducing optical artifacts includes injecting a light beam generated by an illumination source into a polarizing beam splitter (PBS), reflecting a spatially defined portion of the light beam from a display panel, reflecting, at an interface in the PBS, the spatially defined portion of the light beam towards a projector lens, passing at least a portion of the spatially defined portion of the light beam through a circular polarizer disposed between the PBS and the projector lens, reflecting, by one or more elements of the projector lens, a return portion of the spatially defined portion of the light beam, and attenuating, at the circular polarizer, the return portion of the spatially defined portion of the light beam.

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