Cadmium discharge lamp of the short arc type and method of produ

Details Cadmium discharge lamp of the short arc type and method of produ Cadmium discharge lamp of the short arc type and method of produ

1996-01-22

1998-04-14

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

Having a particular total or partial pressure

313568, 313637, 313638, H01J 6112

Patent

active

057396361

ABSTRACT:
A cadmium discharge lamp which can emit line spectra with wavelengths of 214.+-.2 nm with high power is achieved by encapsulating metallic cadmium, in an amount producing a pressure in stationary lighting operation in the range from 2 kPa to 13.7 kPa, together with at least one of the rare gases xenon, krypton, argon and neon, in a temperature-controlled arc tube which is provided with electrodes located adjacently opposite one another, and by operating the lamp such that J/P is in the range from 1.4 to 75, where J is the discharge current in stationary lighting operation in amperes and the P is the cadmium pressure in stationary lighting operation.

REFERENCES:
patent: 3234421 (1966-02-01), Reiling
patent: 5471278 (1995-11-01), Yasuda et al.
patent: 5481159 (1996-01-01), Hiramoto et al.
patent: 5541481 (1996-07-01), Yamaguchi et al.
patent: 5589735 (1996-12-01), Yamaguchi et al.

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