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. 16, 2013
Filed:
Nov. 04, 2003
Ville Kettunen, Zürich, CH;
Hartmut Rudmann, Winterthur, CH;
Markus Rossi, Jona, CH;
Heptagon Micro Optics Pte. Ltd., Singapore, SG;
Abstract
A light emitting device includes an electroluminescent element (), a housing () and current supply device for the electroluminescent element. A micro-optical element () is coupled to the housing () and arranged such that it influences light emitted by the electroluminescent element (). The micro-optical element may be made up of micro-optical structures on a surface of an at least partially transparent layer () coupled to the housing (). The micro-optical structures may, for example, be manufactured by directly imprinting them on the at least partially transparent layer () coupled to the housing or by casting an at least partially transparent layer () including the electroluminescent element to a body of the light emitting device. The diffractive optical features of the micro-optical element () are designed according to the position, size and shape of the one or more electroluminescent elements (), and output light distribution of the one or more electroluminescent elements ().