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:
Jun. 28, 2016
Filed:
Jul. 12, 2013
Koninklijke Philips N.v., Eindhoven, NL;
April Dawn Schricker, Palo Alto, CA (US);
Kim Kevin Mai, San Jose, CA (US);
Grigoriy Basin, San Francisco, CA (US);
Uwe Mackens, Aachen, DE;
Joost Peter Andre Vogels, Leende, NL;
Aldegonda Lucia Weijers, Eindhoven, NL;
Karl Adriaan Zijtveld, Aachen, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A ceramic green wavelength conversion element () is coated with a red wavelength conversion material () and placed above a blue light emitting element () such that the ceramic element () is attached to the light emitting element (), thereby providing an efficient thermal coupling from the red and green converters () to the light emitting element () and its associated heat sink. To protect the red converter coating () from the effects of subsequent processes, a sacrificial clear coating () is created above the red converter element (). This clear coating () may be provided as a discrete layer of clear material, or it may be produced by allowing the red converters to settle to the bottom of its suspension material, thereby forming a converter-free upper layer that can be subjected to the subsequent fabrication processes.