High pressure sodium lamp of low power

Details High pressure sodium lamp of low power High pressure sodium lamp of low power

1997-10-01

2000-04-18

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

Having a particular total or partial pressure

313571, 313638, 313639, 313642, 313643, H01J 1720

Patent

active

060519274

ABSTRACT:
The high-pressure sodium discharge lamp of low power described here is chcterized by a very high xenon cold filling pressure of at least 1 bar. The pressure ratio to the sodium operating pressures lies between 10 and 30. Luminous efficacies of approximately 100 lm/W and more can be obtained with a lamp power of 50 to 100 W.

REFERENCES:
patent: 4260929 (1981-04-01), Jacobs et al.
patent: 5239230 (1993-08-01), Mathews et al.

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