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:
Mar. 17, 2015
Filed:
Mar. 07, 2013
Ledil Oy, Salo, FI;
Hannu Hukkanen, Salo, FI;
Pasi Vallevuori, Turku, FI;
Ledil Oy, Salo, FI;
Abstract
A light guide () including a transparent element is presented. The transparent element includes an optical diverter section () including one or more reflective surfaces () forming walls of a notch () extending into the diverter section, where the reflective surfaces provide total reflections for directing light into directions lateral with respect to an arrival direction of the light. The transparent element includes an optical channel section () for receiving the light from a light source and for directing the light to the optical diverter section. The optical channel section includes a side surface () shaped to provide total reflections for directing light to the optical diverter section. The optical channel section makes it possible to place the light source a distance apart from the optical diverter section and also to prevent or at least to reduce direct propagation of light from the light source to the lateral directions.