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.:
Date of Patent:
May. 24, 2016
Filed:
Sep. 10, 2013
Applicant:
Augmented Vision, Inc., Tucson, AZ (US);
Inventor:
Chunyu Gao, Tucson, AZ (US);
Assignee:
Augmented Vision, Inc., Tucson, AZ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01); A61B 3/10 (2006.01); G02B 27/14 (2006.01); A61B 3/113 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
A61B 3/113 (2013.01); G06K 9/00604 (2013.01);
Abstract
An optical system for eye tracking is disclosed. The system includes a light guiding prism that guides light from an ocular object to an imaging system through multiple internal reflections. The light guiding prism may include one or more freeform surfaces having optical power.