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:
Sep. 21, 2010
Filed:
Feb. 27, 2004
Daniele Pullini, Orbasano, IT;
Piermario Repetto, Turin, IT;
Leonid Doskolovich, Orbassano, IT;
Stefano Bernard, Turin, IT;
Vito Lambertini, Giaveno, IT;
Piero Perlo, Sommariva Bosco, IT;
Davide Capello, Turin, IT;
Mauro Brignone, Orbassano, IT;
Nello LI Pira, Fossano, IT;
Daniele Pullini, Orbasano, IT;
Piermario Repetto, Turin, IT;
Leonid Doskolovich, Orbassano, IT;
Stefano Bernard, Turin, IT;
Vito Lambertini, Giaveno, IT;
Piero Perlo, Sommariva Bosco, IT;
Davide Capello, Turin, IT;
Mauro Brignone, Orbassano, IT;
Nello Li Pira, Fossano, IT;
C.R.F. Società Consortile per Azioni, Orbassano (Torino), IT;
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.