Title:
HIGH EFFICIENCY EMITTER FOR INCANDESCENT LIGHT SOURCES
Document Type and Number:
WIPO Patent Application WO2004079897
Kind Code:
A3
Abstract:
An emitter (F) for incandescent light sources, in particular a filament, capable of being brought to incandescence by the passage of electric current is obtained in such a way as to have a value of spectral absorption α that is high in the visible region of the spectrum and low in the infrared region of the spectrum, said absorption α being defined as α=1−ρ−τ, where ρ is the spectral reflectance and τ is the spectral transmittance of the emitter.
Inventors:
REPETTO PIERMARIO (IT)
PULLINI DANIELE (IT)
CAPELLO DAVIDE (IT)
BRIGNONE MAURO (IT)
LAMBERTINI VITO (IT)
PERLO PIERO (IT)
LI PIRA NELLO (IT)
PULLINI DANIELE (IT)
CAPELLO DAVIDE (IT)
BRIGNONE MAURO (IT)
LAMBERTINI VITO (IT)
PERLO PIERO (IT)
LI PIRA NELLO (IT)
Application Number:
PCT/IB2003/006313
Publication Date:
December 29, 2004
Filing Date:
December 23, 2003
Export Citation:
Assignee:
FIAT RICERCHE (IT)
REPETTO PIERMARIO (IT)
PULLINI DANIELE (IT)
CAPELLO DAVIDE (IT)
BRIGNONE MAURO (IT)
LAMBERTINI VITO (IT)
PERLO PIERO (IT)
LI PIRA NELLO (IT)
REPETTO PIERMARIO (IT)
PULLINI DANIELE (IT)
CAPELLO DAVIDE (IT)
BRIGNONE MAURO (IT)
LAMBERTINI VITO (IT)
PERLO PIERO (IT)
LI PIRA NELLO (IT)
International Classes:
H01K1/04; H01K1/14; H01K3/02; H03F3/217; H03F3/38; H01K; (IPC1-7): H01K1/14; H01K3/02; H01K1/04
Domestic Patent References:
| WO2003019680A1 | 2003-03-06 |
Foreign References:
| US4196368A | 1980-04-01 | |||
| EP0417470A2 | 1991-03-20 | |||
| DE19845423A1 | 2000-04-13 | |||
| US5814840A | 1998-09-29 | |||
| FR1439722A | 1966-05-20 | |||
| US5389853A | 1995-02-14 | |||
| US5955839A | 1999-09-21 | |||
| US4864186A | 1989-09-05 |
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