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 11822084 B1

Date of Patent:

Nov. 21, 2023

Filed:

Mar. 25, 2021

Direction of light propagation in wearable optical devices

Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Daniel Adema, Kitchener, CA;

Jaehong Choi, Waterloo, CA;

Assignee:

GOOGLE LLC, Mountain View, CA (US);

Attorney:

Primary Examiner:

Andrew Jordan

Int. Cl.

CPC ...

G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 27/00 (2006.01); G02C 9/04 (2006.01);

U.S. Cl.

CPC ...

G02B 27/0172 (2013.01); G02B 6/0016 (2013.01); G02B 27/0081 (2013.01); G02C 9/04 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0123 (2013.01); G02B 2027/0178 (2013.01);

Abstract

An optical device includes a light guide (LG) attached to a support component. The LG receives a display light from a light engine, and directs a first portion of the display light out of the LG to form an outcoupled light. The LG also causes a second portion of the display light to become incident upon an outer perimeter of the LG at one or more LG regions of the LG to form one or more stray lights, respectively. The LG may be mechanically coupled to the support component at one or more coupling regions positioned outside of the one or more LG regions. A wearable heads-up display (WHUD) can incorporate the optical device.

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