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:
Oct. 14, 2025

Filed:

Mar. 04, 2025
Applicant:

Leedarson Lighting Co., Ltd., Fujian, CN;

Inventors:

Huiwu Chen, Fujian, CN;

Zongyuan Liu, Fujian, CN;

Xiaobo Chen, Fujian, CN;

Yongshu Zheng, Fujian, CN;

Cheng Luo, Fujian, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21S 4/24 (2016.01); F21K 9/232 (2016.01); F21K 9/64 (2016.01); F21K 9/69 (2016.01); F21V 23/06 (2006.01); F21V 29/71 (2015.01); F21Y 105/12 (2016.01); F21Y 107/70 (2016.01); F21Y 109/00 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21S 4/24 (2016.01); F21K 9/232 (2016.08); F21K 9/64 (2016.08); F21K 9/69 (2016.08); F21V 23/06 (2013.01); F21V 29/713 (2015.01); F21Y 2105/12 (2016.08); F21Y 2107/70 (2016.08); F21Y 2109/00 (2016.08); F21Y 2115/10 (2016.08);
Abstract

A lighting device includes a flexible substrate, four types of LED modules, and a driver. The substrate has an elongated area divided into four bands along the Y-axis. First-type LEDs are placed on the first band in a row along the X-axis, parallel to the substrate's length. Second-, third-, and fourth-type LEDs are placed on the second, third, and fourth bands, respectively. Each type emits light with different optical properties. The Y-axis is perpendicular to the X-axis, with first-type LEDs aligned with fourth-type LEDs and second-type LEDs aligned with third-type LEDs. First-type LEDs are offset from second-type LEDs along the X-axis. The driver converts external power into four currents, adjusting their relative ratios to control the combined optical output.


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