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:
Apr. 15, 2014
Filed:
Jan. 31, 2011
Peter Scott Andrews, Durham, NC (US);
Raymond Rosado, Apex, NC (US);
Michael P. Laughner, Cary, NC (US);
David T. Emerson, Chapel Hill, NC (US);
Jeffrey C. Britt, Cary, NC (US);
Peter Scott Andrews, Durham, NC (US);
Raymond Rosado, Apex, NC (US);
Michael P. Laughner, Cary, NC (US);
David T. Emerson, Chapel Hill, NC (US);
Jeffrey C. Britt, Cary, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
Multi-chip LED devices are described. Embodiments of the present invention provide multi-chip LED devices with relatively high efficiency and good color rendering. The LED device includes a plurality of interconnected LED chips and an optical element such as a lens. The optical element may be molded from silicone. The LED chips may be connected in parallel. In some embodiments, the LED device includes a submount, which may be made of a ceramic material such as alumina or aluminum nitride. Wire bonds can be connected to the LED chips so that all the wire bonds tend the outside of a group of LED chips. Various sizes and types of LED chips may be used, including vertical LED chips and sideview LED chips.