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. 03, 2014
Filed:
Jul. 03, 2006
Applicants:
Pentti Ahlgren, Helsinki, FI;
Pauli Laitinen, Helsinki, FI;
Inventors:
Pentti Ahlgren, Helsinki, FI;
Pauli Laitinen, Helsinki, FI;
Assignee:
Core Wireless Licensing S.A.R.L., Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus includes a light guide. A first light input section receives light in a first direction into said light guide. First direction-dependent outcoupling structures selectively couple out light propagating in said first direction in said light guide. A second light input section receives light in a second direction into said light guide. Said second direction is different than said first direction. Second direction-dependent outcoupling structures selectively couple out light propagating in said second direction in said light guide.