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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 11380008 B1

PDFFull Text
Date of Patent:
Jul. 05, 2022

Filed:

May. 05, 2017

Gaze tracking system with contact lens fiducial

Applicant:

Innovega Inc., Bellevue, WA (US);

Inventors:

Jay Marsh, Bellevue, WA (US);

Mark Freeman, Bellevue, WA (US);

Jerome Legerton, Bellevue, WA (US);

Assignee:

Innovega Inc., Bellevue, WA (US);

Attorney:

Viksnins Harris Padys Malen LLP

Primary Examiner:

Dave Czekaj

Assistant Examiner:

Berteau Joisil

Int. Cl.
CPC ...
G02B 27/32 (2006.01); G06T 7/73 (2017.01); H04N 5/225 (2006.01); G06F 3/01 (2006.01); H04N 17/00 (2006.01); H04N 5/33 (2006.01); G02B 27/00 (2006.01); G06V 10/143 (2022.01); G06V 10/147 (2022.01); G06V 40/19 (2022.01); G06V 40/18 (2022.01); G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
G06T 7/73 (2017.01); G02B 27/0093 (2013.01); G02B 27/32 (2013.01); G06F 3/013 (2013.01); G06V 10/143 (2022.01); G06V 10/147 (2022.01); G06V 40/19 (2022.01); G06V 40/193 (2022.01); H04N 5/2253 (2013.01); H04N 5/2256 (2013.01); H04N 5/33 (2013.01); H04N 17/002 (2013.01); G02C 7/04 (2013.01); G06T 2207/30201 (2013.01); G06T 2207/30204 (2013.01);
Abstract

A gaze tracking system includes a contact lens, a photodetector element, a light conditioning element and electronics. The contact lens includes a fiducial having a position. The photodetector element receives a light signal from the fiducial and provides a photodetector output signal. The light signal provides a light intensity pattern at the photodetector. The optical conditioning element receives the light signal and provides a variation in the light intensity pattern on the photodetector in response to changes in the position of the fiducial. And the electronics process the photodetector output signal to calculate the position of the fiducial. A method includes detecting a light signal from a fiducial included in a contact lens, and tracking the contact lens by analyzing the light signal.

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