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:
Jan. 27, 2009
Filed:
Sep. 15, 2006
Gary Anderson, Minneapolis, MN (US);
Ron Rothman, Duluth, MN (US);
Gary Anderson, Minneapolis, MN (US);
Ron Rothman, Duluth, MN (US);
Other;
Abstract
A battery powered LED lamp including an array of high-performance LEDs disposed in a lightweight directionally oriented shade. Converting electronics are provided which may include a step-down DC voltage switching regulator for converting a higher voltage of the battery power source to a lower voltage required to drive the LEDs at greater than 90% efficiency. The converting electronics may also include an LED current monitoring circuit for preventing thermal runaway of the LEDs and for reliably operating the LEDs near their maximum rating so to provide the maximum amount of brightness from the LED array and maximum battery life.