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. 07, 2005
Filed:
Nov. 09, 2001
David W. Wang, Saratoga, CA (US);
John C. Tsai, Saratoga, CA (US);
David W. Wang, Saratoga, CA (US);
John C. Tsai, Saratoga, CA (US);
Fibera, Inc., Santa Clara, CA (US);
Abstract
Multi-dimensional optical gratings () of a background material () having a first refractive index and cells () of at least one different refractive index. The cells () may occupy two-dimensional or three-dimensional grids, defining the optical gratings as planar gratings () or cubical gratings (), and thus providing two or three sets of surface-to-surface separations, or thicknesses, and cell-to-cell separations. The respective sets of surface-to-surface separations and cell-to-cell separations used may particularly be selected according to Bragg's law to selectively scatter respective light wavelengths.