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:
Nov. 13, 2018
Filed:
Sep. 23, 2013
Lucidity Lights, Inc., Cambridge, MA (US);
John R. Goscha, Boston, MA (US);
Walter Peter Lapatovich, Boxford, MA (US);
Zeng Zhi Yu, Newton, MA (US);
James N. Lester, Essex, MA (US);
Felix I. Alexandrov, Bedford, MA (US);
Lucidity Lights, Inc., Charlestown, MA (US);
Abstract
A dimmable induction RF fluorescent light bulb comprising a power coupler with reduced extraneous electromagnetic radiation wherein a dimming facility utilizes burst-mode dimming that periodically interrupts the high frequency voltage and current to the power coupler with an off period and an on period in order to reduce the power being delivered to the power coupler wherein the off period is shorter than the time required for an electron density of the discharge within the lamp envelope to substantially decrease.