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:
May. 16, 2023
Filed:
Dec. 01, 2021
Applicants:
Keumkyung Lighting Co.,ltd., Busan, KR;
Dong Wook Lee, Busan, KR;
Inventor:
Dong Wook Lee, Busan, KR;
Assignees:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/18 (2020.01); H05B 45/40 (2020.01);
U.S. Cl.
CPC ...
H05B 45/18 (2020.01); H05B 45/40 (2020.01);
Abstract
The present invention relates to an intelligent power-saving LED light, which can maintain constant brightness and save energy by reducing the number of lighted LEDs of LED modules as outside temperature of a lighting device, such as a street light, having a plurality of LED modules gets lower. When potential of a specific point of a temperature change sensing unit gets lower by a thermistor, comparators compare sensed potential with set reference potential and supply actuation signals of switching elements in consecutive order so that specific LEDs are turned off in consecutive order.