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:
Dec. 04, 2007
Filed:
Aug. 18, 2005
Christopher Cummings, Hampton, NH (US);
Samuel P. Sadoulet, Barrington, NJ (US);
Christopher Cummings, Hampton, NH (US);
Samuel P. Sadoulet, Barrington, NJ (US);
Edmund Optics, Inc., Barrington, NJ (US);
Abstract
A reflector chamber, used to couple a light source to a downstream light-transport medium, includes a forward reflector which folds the light impinging upon it forward and a backward reflector that folds backwards the light received from the light source or the forward reflector. The two reflectors are judiciously shaped so as to maximize the energy density at the output aperture with an angle of emission within the numerical aperture of the downstream medium. The forward reflector is preferably shaped substantially flat and coplanar with the light source. The backward reflector is preferably a concave section. A diverging light reflector may be added to the output aperture of the coupler in order to increase its efficiency.