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.:
Date of Patent:
Apr. 13, 2021
Filed:
May. 19, 2020
Kaistar Lighting (Xiamen) Co., Ltd., Xiamen, CN;
KAISTAR LIGHTING (XIAMEN) CO., LTD., Xiamen, CN;
Abstract
A light source device includes: a power supply circuit, having a first voltage terminal and a second voltage terminal; a light source circuit, having a common terminal and multiple branch terminals, the common terminal being electrically connected to the first voltage terminal, the light source circuit including multiple light sources for emitting lights of different colors, first terminals of the light sources being electrically connected to the common terminal, and second terminals of the light sources being electrically connected to the branch terminals respectively; and a light adjusting circuit, including multiple electrical paths and being electrically connected to the second voltage terminal and the branch terminals via the electrical paths so that the light sources are connected in parallel between the first and second voltage terminals. A resistance of at least one of the electrical paths is adjustable to set branch currents respectively flowing through the light sources.