Sodium halide discharge lamp

Details Sodium halide discharge lamp Sodium halide discharge lamp

1995-02-21

1998-03-17

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

313636, 313571, 313573, 313638, 313639, 313640, 313641, 313642, 501 54, 501154, H01J 1716, H01J 1720

Patent

active

057290903

ABSTRACT:
A sodium containing lamp constructed to include of a fused quartz or fused silica arc chamber wherein the fused quartz and/or fused silica contains less than about 0.05 parts per million sodium. The arc chamber of the invention demonstrates a resistance to sodium diffusion resulting in a longer lived lamp with excellent color maintenance.

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