Dichroic coated lamp with gettered outer jacket

Details Dichroic coated lamp with gettered outer jacket Dichroic coated lamp with gettered outer jacket

1988-12-01

1990-01-02

Wieder, Kenneth

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

313111, 313558, 313560, H01J 516, H01J 6126, H01K 154

Patent

active

048915424

ABSTRACT:
A method of prolonging the life of thin film dichroic coated lamp components and of employing inexpensive components has been discovered. This method is the use of a hydrogen getter located in the outer jacket of the lamp, adjacent to the dichroic coating. The getter is preferably located and aligned so as to reach an optimum operating temperature.

REFERENCES:
patent: 3946262 (1976-03-01), Keefe et al.
patent: 4839553 (1989-06-01), Mellor

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