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:
Aug. 26, 2003
Filed:
Mar. 14, 2002
Xanoptix, Inc., Merrimack, NH (US);
Abstract
A method of forming a guide for light in a high refractive index material involves forming a guiding structure into a surface of the material, treating the material with a reactive gas to cause the wall to become a cladding material having a relatively low refractive index, and after treating, filling the cavity with an optically transparent material having a refractive index sufficiently above that of the cladding. A light guiding device is also described. The light guiding device has a slab having a high refractive index, a guide located within the slab. The guide has a wall surface covered with a material, derived from the slab, having a first refractive index lower than the high refractive index, and a filler material having a second refractive index sufficiently higher than the first refractive index such that light entering the guide will be directed towards the second end.