H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/40 (2006.01) H01J 9/24 (2006.01) H01J 61/12 (2006.01) H01J 61/34 (2006.01) H01J 61/35 (2006.01) H01J 61/82 (2006.01)
Patent
CA 2125253
ABSTRACT OF THE DISCLOSURE To filter light emitted, upon energization of a metal halide discharge lamp, in the short wavelength visible and adjacent UV spectral light regions, a coating of an oxide of at least one of titanium or cerium, preferably titanium dioxide TiO2 is applied at least in the region of maximum light emission on the surface of the discharge vessel of the lamp, the coating being operated, in operation of the lamp, to have a temperature of at least . 600°C, and preferably between 750 and 900°C; the coating should have a thickness which corresponds to a coating, of TiO2, applied at a rate of up to 0.6 mg/cm2, and preferably between about 0.08 to 0.3 mg/cm2. The coating can be applied by spraying as an intermediate step in the manufacture of the discharge vessel, and can be mat, if sintered on the quartz glass of the discharge vessel at about 500°C or clear, if melted on the quartz glass of the discharge vessel at between 1,200 and 1,700°C, so that the oxide of the coating will form a doping at the outer layers of the quartz glass.
Heider Jurgen
Henger Ulrich
Kotter Stefan
Woizan Gunter
Fetherstonhaugh & Co.
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
LandOfFree
Metal halide discharge lamp with improved color rendition... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal halide discharge lamp with improved color rendition..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal halide discharge lamp with improved color rendition... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1771303