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:
Feb. 06, 2024

Filed:

Sep. 26, 2022
Applicant:

Lumens Co., Ltd., Yongin-si, KR;

Inventors:

Seung Hyun Oh, Yongin-si, KR;

Pyeong Guk Kim, Yongin-si, KR;

Jung Hyun Park, Yongin-si, KR;

Assignee:

LUMENS CO., LTD., Yongin-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 9/30 (2018.01); F21V 3/00 (2015.01); F21Y 103/10 (2016.01);
U.S. Cl.
CPC ...
F21V 9/30 (2018.02); F21V 3/00 (2013.01); F21Y 2103/10 (2016.08);
Abstract

A surface light source module includes a substrate, a plurality of light-emitting elements mounted on the substrate, a first optical layer disposed on the light-emitting elements to cover the light-emitting elements and configured to disperse light emitted from the light-emitting elements, and a second optical layer disposed on the first optical layer and configured to absorb the light emitted from the light-emitting elements and emit light of a different wavelength band from a wavelength of the absorbed light, wherein a distance from an upper surface of the first optical layer to an upper surface of the second optical layer has a value less than a distance from an upper surface of the substrate to the upper surface of the first optical layer.


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