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.:

US 6817726 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 16, 2004

Filed:

Dec. 10, 2002
Applicant:
Inventor:

David R. Nowak, Chicago, IL (US);

Assignee:

Illinois Tool Works Inc., Glenview, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 8/00 ;
U.S. Cl.
CPC ...
F21V 8/00 ;
Abstract

A lighting system is provided to transmit light from a light source through a prism. The prism includes a light receiving edge surface, a curved edge surface and a light exiting edge surface. The light source is positioned to transmit a beam of light through the light receiving edge surface of the prism. The prism is configured such that the beam of light travels through the prism to strike the curved edge surface. The beam of light is then reflected off of the curved edge surface such that the beam of light changes direction and continues to travel through the prism until such time as it passes through the light exiting edge surface. The lighting system is adapted to provide a substantially uniform light distribution from the light exiting edge surface.


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