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.

Date of Patent:
Jan. 21, 2020

Filed:

Aug. 31, 2016
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Richard Ruh, Monte Sereno, CA (US);

Ueyn L. Block, Menlo Park, CA (US);

Guocheng Shao, San Jose, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/024 (2006.01); A61B 5/00 (2006.01); G02B 5/136 (2006.01); G02B 5/124 (2006.01); A61B 5/1455 (2006.01); G01J 1/44 (2006.01); G01J 1/02 (2006.01);
U.S. Cl.
CPC ...
A61B 5/681 (2013.01); A61B 5/14552 (2013.01); A61B 5/6844 (2013.01); G01J 1/0233 (2013.01); G01J 1/44 (2013.01); G02B 5/124 (2013.01); G02B 5/136 (2013.01); A61B 2562/0238 (2013.01); A61B 2562/0257 (2013.01); A61B 2562/066 (2013.01); A61B 2562/12 (2013.01);
Abstract

The present disclosure relates generally to electronic devices and methods for sensor signal collection. The electronic devices may include retroreflectors for redirecting scattered light back to the photodetector. The retroreflectors may be positioned at various locations on or in the electronic device, and may employ various geometric elements having retroreflective capability.


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