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. 22, 2004
Filed:
Nov. 19, 2001
Applicant:
Inventors:
Bruce T. Dalton, Cornish, ME (US);
Eric R. Shute, Buxton, ME (US);
Timothy Coste, Standish, ME (US);
Kristen Collins, Bridgeton, ME (US);
Assignee:
Control Devices, Standish, ME (US);
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/22 ;
U.S. Cl.
CPC ...
F21V 7/22 ;
Abstract
A light pipe, including a transparent housing member characterized by a first refractive index, a light source positioned to shine a light beam through the transparent housing member, and at least one enclosed pocket positioned within the transparent member. The enclosed pocket is characterized by a second refractive index, wherein the first refractive index is substantially greater than the second refractive index. Light shining through the transparent member is totally internally reflected by the enclosed pocket.