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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 10429661 B1

PDFFull Text
Date of Patent:
Oct. 01, 2019

Filed:

Aug. 08, 2017

Retroreflector detectors

Applicant:

Sensors Unlimited, Inc., Princeton, NJ (US);

Inventor:

Thuc-Uyen Nguyen, Princeton, NJ (US);

Assignee:

Sensors Unlimited, Inc., Princeton, NJ (US);

Attorneys:

Locke Lord LLP

Scott D. Wofsy

Joshua L. Jones

Primary Examiner:

Dominic J Bologna

Int. Cl.
CPC ...
G02B 27/28 (2006.01); G02B 6/122 (2006.01); G02B 6/126 (2006.01); G02B 5/30 (2006.01); G02B 6/27 (2006.01); G01B 11/03 (2006.01); G01N 21/78 (2006.01); G01N 21/55 (2014.01);
U.S. Cl.
CPC ...
G02B 27/283 (2013.01); G01B 11/03 (2013.01); G01N 21/55 (2013.01); G01N 21/78 (2013.01); G02B 5/3058 (2013.01); G02B 6/122 (2013.01); G02B 6/126 (2013.01); G02B 6/2706 (2013.01);
Abstract

An optics arrangement includes a polarized beam splitter arranged along an collection axis, a first quarter waveplate arranged along the collection axis, and a second quarter waveplate. The second quarter waveplate is arranged along the collection axis and is optically coupled to the first quarter waveplate by the polarized beam splitter to limit return of polarized illumination originating in a scene being illuminated for retroreflector detection. Retroreflector detectors and methods of imaging a scene are also described.

Find Patent Forward Citations

Nguyen, Thuc-Uyen. (2019). Retroreflector detectors (U.S. Patent No. 10429661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10429661

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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