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:
Jan. 16, 2018
Filed:
Nov. 03, 2016
Applicant:
Facebook, Inc., Menlo Park, CA (US);
Inventors:
Assignee:
Facebook, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/04 (2006.01); G01N 21/55 (2014.01); G02B 27/42 (2006.01); G02B 27/58 (2006.01); G02B 3/10 (2006.01); G02B 5/18 (2006.01); G01S 17/46 (2006.01); G01B 11/25 (2006.01); G01S 7/481 (2006.01); G01S 17/89 (2006.01);
U.S. Cl.
CPC ...
G01J 1/0411 (2013.01); G01B 11/25 (2013.01); G01J 1/044 (2013.01); G01J 1/0448 (2013.01); G01N 21/55 (2013.01); G01S 7/4814 (2013.01); G01S 17/46 (2013.01); G02B 3/10 (2013.01); G02B 5/1876 (2013.01); G02B 27/4205 (2013.01); G02B 27/58 (2013.01); G01S 17/89 (2013.01);
Abstract
An optical sensing device for using light to locate objects or features in a field of view comprises a light source; a controllable lens having two states and being controllable between them, for example a multifocal lens having two or more foci for focusing light from the light source; and a sensor able to sense light reflected from an object, to determine information of the object. The use of two or more foci adds dynamic range to optical sensing to allow for reliable detection over a wide range of distances.