Patent · US Expired

Waveguide based light source

US6843590B2 · kind B2 · utility

36Cited by
10References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 2001
Grant dateJan 18, 2005
Priority date
Expiry dateNov 18, 2021

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J63/06
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A wave guide based light source having a phosphor film with a large two-dimensional extent and a small thickness. The phosphor film is excited by an excitation means.

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