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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 11714218 B1

PDFFull Text
Date of Patent:
Aug. 01, 2023

Filed:

Jun. 15, 2021

System for optical imaging comprising matched spectral filters

Applicant:

Lumileds Llc, San Jose, CA (US);

Inventors:

Rob Jacques Paul Engelen, Eindhoven, NL;

Varun Dev Kakkar, Eindhoven, NL;

Assignee:

Lumileds LLC, San Jose, CA (US);

Attorney:

Schwegman, Lundberg & Woessner, P.A.

Primary Examiner:

Que Tan Le

Int. Cl.
CPC ...
G02B 5/28 (2006.01); G01J 1/04 (2006.01); G01J 1/08 (2006.01); G01J 1/42 (2006.01); H04N 23/55 (2023.01); H04N 23/74 (2023.01); G06V 10/143 (2022.01); G06V 10/147 (2022.01); G06V 40/16 (2022.01);
U.S. Cl.
CPC ...
G02B 5/28 (2013.01); G01J 1/0437 (2013.01); G01J 1/08 (2013.01); G01J 1/42 (2013.01); G06V 10/143 (2022.01); G06V 10/147 (2022.01); G06V 40/166 (2022.01); H04N 23/55 (2023.01); H04N 23/74 (2023.01); G06V 40/16 (2022.01);
Abstract

Systems, methods and devices are for optical imaging are described. A system includes a light source and a light detection unit. The light source includes a light-emitting device and a first spectral filter opposite the light emitting device. The first spectral filter includes at least one dielectric filter and has a first angular dependence of a transmission passband. The light source further includes at least one reflector adjacent side surfaces of the light emitting device. The light detection unit includes an optical sensor and a second spectral filter opposite the optical sensor. The second spatial filter has a second angular dependence of a transmission passband that is matched to the first angular dependence.

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