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. 10, 2012
Filed:
Oct. 14, 2009
James G. Grote, Yellow Springs, OH (US);
James G. Grote, Yellow Springs, OH (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
The present invention uses a DNA-based biopolymer material as a host for phosphor guest materials that are used for solid state lighting. The DNA-biopolymer replaces the epoxies, which are typically used as the hosts for these phosphors. The resulting DNA-biopolymer phosphor can either be deposited directly on the light emitting diode die by casting or onto the inside of the lens or dome placed on top of the LED by casting, spin depositing, electro-spinning or vapor deposition. The purpose of the invention is to enhance the light output and efficiency of solid state lighting and to red shift the light emission or shift the emission to longer wavelength. This would render brighter solid state lighting that operates at lower input power, generate less heat and have longer lifetimes. It would also reduce or eliminate the cold or blue tinted color of solid state lighting by warming or red shifting the emission of these devices.