Patent · US Expired

Planar optical waveguides for optical panel having gradient refractive index core

US6307995A · kind A · utility

15Cited by
12References
52Claims
0Family size

Inventor

Key dates

Filing dateApr 5, 2000
Grant dateOct 23, 2001
Priority date—
Expiry dateApr 5, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S385/901
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical panel is disclosed. A plurality of stacked planar optical waveguides are used to guide light from an inlet face to an outlet face of an optical panel. Each of the optical waveguides comprises a planar sheet of core material having a central plane. The core material has an index of refraction which decreases as the distance from the central plane increases. The decrease in the index of refraction occurs gradually and continuously.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.