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. 02, 2013
Filed:
Jul. 08, 2010
Kevin Brennan, Villa Park, IL (US);
Wei LI, South Barrington, IL (US);
Kevin Brennan, Villa Park, IL (US);
Wei Li, South Barrington, IL (US);
Excelitas Technologies Corp., Waltham, MA (US);
Abstract
An optical element for a side emitting light that emits light from a light source at side directions relative to the horizon is disclosed. The optical element has an internal recess adapted to fit over a light source. The internal recess includes a collimating surface and interior refractive surfaces. An exterior refractive surface corresponding to the interior refractive surfaces is provided. A faceted prismatic reflecting surface corresponding with the collimating surface is provided. Light at a substantially horizontal angle relative to the horizon is emitted through the interior refractive surface through the exterior reflective surface to a side direction and light at a substantially vertical angle relative to the horizon is collimated by the collimating surface and reflected by the reflecting surface in the side direction.