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:
Sep. 19, 2023

Filed:

Jun. 09, 2022
Applicant:

Jiangmen City Shengda Lighting Co., Ltd., Jiangmen, CN;

Inventor:

Xiaojun Xu, Jiangmen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 19/00 (2006.01); F21V 23/00 (2015.01); F21Y 113/10 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21V 19/001 (2013.01); F21V 23/001 (2013.01); F21Y 2113/10 (2016.08); F21Y 2115/10 (2016.08);
Abstract

The present disclosure is based on the characteristic that the LED chip emits light when the polarity at each electrode of a LED chip is the same as the polarity of the respective electrode of the power supply to which the electrode of the LED chip is connected. The LED chip sets each with a respective color temperature are connected in opposite manner to two conductive members that are electrically connected to positive and negative electrodes of a power supply. After the power supply is turned on, the LED chip set having the polarity at each electrode the same as the polarity of the respective conductive member to which the electrode connects can emit light, and the LED chip set having the polarity at each electrode opposite to the polarity of the respective conductive member to which the electrode connects can not emit light.


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