Feldemissionslichtquelle

Details

Veröffentlichungs-Nr.

EP3035368

Aktenzeichen

EP14198645

Anmeldetag

17. Dezember 2014

Veröffentlichung

30. Januar 2019

Erteilung

30. Januar 2019

Rechtsraum

EP

IPC

H01J63/04H01J63/06// H01J61/30

Abstract

The present invention generally relates to a field emission light source and specifically to a compact field emission light source configured for two-stage light conversion. The field emission light source comprises a field emission cathode (106) comprising a plurality of nanostructures (104) formed on a wafer, an electrically conductive anode structure (108) comprising a first wavelength converting material (118) arranged to cover at least a portion of the anode structure, and means for forming an hermetically sealed and subsequently evacuated cavity (306) between the substrate of the field emission cathode and the anode structure. In a preferred embodiment, the anode structure includes a first wavelength converting material (118) comprising a phosphor material (e.g. ZnS), and a second wavelength converting material (120) comprising quantum dots generating light at a second wavelength range when receiving light at the first wavelength range, where the second wavelength range is at least partly higher than the first wavelength range.

Anmelder

Firmen

LightLab Sweden AB
Nanyang Technological University

Land

🇸🇪 Schweden

Fachgebiete