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:
Dec. 28, 2021
Filed:
Dec. 06, 2016
Applicant:
Fitbit, Inc., San Francisco, CA (US);
Inventors:
Kyle P. Nadeau, San Francisco, CA (US);
Chris H. Sarantos, San Francisco, CA (US);
Assignee:
Fitbit, Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/024 (2006.01); A61B 5/00 (2006.01); A61B 5/08 (2006.01); A61B 5/083 (2006.01); A61B 5/1455 (2006.01); A61B 8/12 (2006.01); G02B 3/08 (2006.01); G02B 27/42 (2006.01);
U.S. Cl.
CPC ...
A61B 5/02427 (2013.01); A61B 5/0008 (2013.01); A61B 5/02416 (2013.01); A61B 5/02438 (2013.01); A61B 5/08 (2013.01); A61B 5/083 (2013.01); A61B 5/14552 (2013.01); A61B 5/4875 (2013.01); A61B 5/0084 (2013.01); A61B 8/12 (2013.01); A61B 2562/0242 (2013.01); A61B 2562/04 (2013.01); G02B 3/08 (2013.01); G02B 27/425 (2013.01);
Abstract
Structures and techniques are provided for shaping or steering a light field for an optical biological parameter sensor such that the light is partially or wholly collimated and enters a person's skin at an oblique angle to the person's skin such that the light has a direction component oriented towards or away from a photodetector of the optical biological parameter sensor.