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:
Feb. 02, 2010
Filed:
Jan. 23, 2002
Brian Maccraith, Dublin, IE;
Lubos Polerecky, Bremen, DE;
Brian MacCraith, Dublin, IE;
Lubos Polerecky, Bremen, DE;
Fluorocap Limited, Dublin, IE;
Abstract
The invention provides a luminescent based sensor having a luminescent material optically coupled to a substrate, and adapted to be used in a medium or environment such as water or air. A detector is provided to detect light that is emitted into the substrate by the material. The substrate is adapted to redirect light that is emitted into the substrate at angles with the range θ? θ ? θwhere θis the critical angle of the environment/substrate interface and θis the critical angle of the luminescent layer/substrate interface. Examples of possible configurations are described.