Patent ID: 6268685
Filing Date: 2001-07-31
Classification: H01K

Abstract:
A color rendering general service incandescent lamp comprising:(a) at least one base;(b) transparent inner and outer envelopes attached to said base;(c) a radiation discriminative reflective film for reflecting radiation for recycling energy;(d) a lamp filament electrically connected to the base through leads;(e) a lightweight insulative low thermal mass fibrous ceramic material spatially formed and positioned to shade the lamp base from the radiation emitted form the filament and to shade the radiation reflected from the radiation discriminative reflective film, the fibrous ceramic material being treated with a candoluminescent material to form a mantle for emitting radiation when thermally excited by the filament or when the radiation is reflected from the radiation discriminative reflective film,Wherein a wavelength and polarization discriminative reflective film is provided on one of the inner and outer envelopes for directing the reflected radiation toward the filament.