H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/24 (2006.01) H01J 61/28 (2006.01) H01J 61/52 (2006.01) H01J 61/54 (2006.01)
Patent
CA 2100449
2100449 9311557 PCTABS00022 The mercury vapor pressure in a low pressure mercury discharge lamp is thermostatically controlled. A low pressure mercury discharge lamp includes electrodes and a source of mercury vapor sealed in a lamp envelope (70). A heater (78) and a thermal switching device (80) are in thermal contact with the source of mercury vapor. The heater (78) is energized when the source of mercury vapor is below a predetermined temperature during operation of the lamp. The heater (78) is preferably a resistance heater electrically connected in series with one of the lamp electrodes (72). The thermal switching device (80) can be a bimetal thermostatic switch. The source of mercury vapor is typically an amalgam (74) selected to have an optimum mercury vapor pressure at the maximum operating temperature of the lamp. The heater (78) and the thermal switching device (80) can be located external to the lamp envelope (70) or can be located within the lamp envelope (70). The lamp provides a relatively constant light output over a broad range of operating temperatures and different lamp orientations.
Bouchard Andre C.
Gte Products Corporation
R. William Wray & Associates
LandOfFree
Low pressure mercury discharge lamp with thermostatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low pressure mercury discharge lamp with thermostatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low pressure mercury discharge lamp with thermostatic... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1892260