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. 10, 2012
Filed:
Nov. 02, 2006
Pasi Risto Olavi Saarikko, Espoo, FI;
Tapani Kalervo Levola, Tampere, FI;
Pauli Laitinen, Helsinki, FI;
Pasi Risto Olavi Saarikko, Espoo, FI;
Tapani Kalervo Levola, Tampere, FI;
Pauli Laitinen, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
A light distributing device () comprises a thin planar waveguide () and a waveguiding ridge (). An incoming light beam (B) coupled into the ridge () forms a second light beam (B) waveguided in the ridge (). The ridge () and the planar waveguide () have a common portion () such that light is further coupled from the side of the ridge () into the planar waveguide () through said common portion (). Thus, optical power of a broad incoming beam (B) may be effectively coupled to a relatively thin planar waveguide (). The planar waveguide () may further comprise diffractive out-coupling elements () to direct light towards a display ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile