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:
May. 21, 2002
Filed:
Dec. 09, 1999
Marko Parikka, Halikko, FI;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
A light source arrangement is used for providing illumination to an essentially planar area ( ) in an electronic device. The arrangement comprises an encapsulated semiconductor light source ( ) in the vicinity of an edge of an essentially planar light guide ( ). Light emitted by the encapsulated semiconductor light source is to be coupled into the light guide through the edge. The encapsulated semiconductor light source comprises a semiconductor chip ( ) encapsulated in an encapsulation block ( ) that comprises a curved surface facing the edge of the planar light guide. The encapsulation block ( ) has also a D-shaped cross section in a plane perpendicular to the plane of the essentially planar lightguide so that the arcuate part of the D corresponds to said curved surface. The encapsulation block extends to a predetermined distance in an extension direction locally perpendicular to the plane of said D-shaped cross section.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile