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:
Jul. 01, 2014
Filed:
Nov. 02, 2009
Thomas John Brukilacchio, Reading, MA (US);
Thomas John Brukilacchio, Reading, MA (US);
Innovations in Optics, Inc., Woburn, MA (US);
Abstract
LED 'Chip-on-Board' (COB) metal core printed circuit board (PCB) technology operates in conjunction with high efficiency compact imaging and non-imaging optics to provide a compact emergency light offering high performance luminance levels (higher brightness) and enhanced life, at low cost. Thermal impedance between the LED junction and the heat sink is significantly reduced for COB technology by placing the LED die directly on a high thermal conductivity material substrate thereby increasing temperature dependant life and thermally dependant output power. Additionally, there is no encapsulant or domed optic over the LED thus making it possible to get a much more compact and efficient substantially Etendue preserving collection optic directly over the die.