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. 18, 2017
Filed:
Jun. 14, 2012
Andrew J. Ouderkirk, St. Paul, MN (US);
Ravi K. Sura, St. Paul, MN (US);
Nicholas T. Gabriel, St. Paul, MN (US);
Huang Chin Hung, Taipei, TW;
Andrew J. Ouderkirk, St. Paul, MN (US);
Ravi K. Sura, St. Paul, MN (US);
Nicholas T. Gabriel, St. Paul, MN (US);
Huang Chin Hung, Taipei, TW;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
Lens assemblies for use in remote phosphor lighting systems, and methods of making and using them, are described. The lens assemblies typically include a lens member, a dichroic reflector attached to an outer surface of the lens member, and a phosphor layer attached to an inner surface of the lens member. The dichroic reflector reflects LED light originating from a given source point in a reference plane proximate the inner surface to a given image point in the reference plane. The phosphor layer may be patterned to cover one or more first portions of the inner surface and to expose one or more second portions, and/or the phosphor layer may be removably bonded to the inner surface. The lens assemblies can be readily combined with one or more short wavelength (e.g. blue) LEDs and other components to provide a remote phosphor lighting system.