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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 12218294 B1

PDFFull Text
Date of Patent:
Feb. 04, 2025

Filed:

Sep. 02, 2022

Light source device

Applicant:

Nichia Corporation, Anan, JP;

Inventors:

Tsuyoshi Okahisa, Tokushima, JP;

Norimasa Yoshida, Komatsushima, JP;

Assignee:

NICHIA CORPORATION, Anan, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Grant S Withers

Int. Cl.
CPC ...
H01L 33/58 (2010.01); F21S 41/663 (2018.01); G03B 15/02 (2021.01); H01L 27/15 (2006.01); H01L 33/50 (2010.01); G03B 15/05 (2021.01);
U.S. Cl.
CPC ...
H01L 33/58 (2013.01); F21S 41/663 (2018.01); G03B 15/02 (2013.01); H01L 27/156 (2013.01); H01L 33/507 (2013.01); G03B 15/05 (2013.01); G03B 2215/0567 (2013.01); G03B 2215/0592 (2013.01);
Abstract

A light source device includes: a mounting board; a plurality of light-emitting parts disposed on the mounting board, each of the plurality of light-emitting parts being configured to be individually turned on; a light-shielding member defining an opening; and a light-guide member supported by the light-shielding member, the light-guide member comprising a Fresnel lens portion, wherein, in a top view, the Fresnel lens portion is located within an area of the opening of the light-shielding member. In the top view, irradiation areas of the respective light-emitting parts are at least partially separated from each other.

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