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:
Dec. 03, 2024
Filed:
Mar. 11, 2024
Applicant:
Ledvance Llc, Wilmington, MA (US);
Inventors:
Soumya Kanta Ray, Methuen, MA (US);
Anil Jeswani, Acton, MA (US);
Assignee:
LEDVANCE LLC, Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/10 (2020.01); F21K 9/278 (2016.01); F21S 4/28 (2016.01); H05B 45/20 (2020.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H05B 45/10 (2020.01); F21K 9/278 (2016.08); F21S 4/28 (2016.01); H05B 45/20 (2020.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08);
Abstract
A lamp including a light source including at least one string of light emitting diodes (LEDs) within a tube body; end caps having contacts on each end of the tube body; driver electronics within the tube body including a filament detector portion provided by a passive resistance capacitor (RC) circuit that simulates the filament load of a fluorescent lamp when installed into a ballast containing fixture; and a power level selector switch in communication with the driver electronics for selecting the power level for powering the light source.