UV Radiation-absorbing coatings and their use in lamps

Details UV Radiation-absorbing coatings and their use in lamps UV Radiation-absorbing coatings and their use in lamps

1995-02-14

1996-09-03

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313112, 359359, 359389, H01J 6140, H01J 516

Patent

active

055526713

ABSTRACT:
The subject invention, therefore, relates to a multi-layer coating for use on a thick-walled metal halide lamp which emits visible light radiation and absorbs and reflects UV radiation, and which further manages the thermal non-uniformity problems across the thickness of the arc tube to substantially eliminate devitrification problems.

REFERENCES:
patent: 3410625 (1968-11-01), Edwards
patent: 4949005 (1990-08-01), Parham et al.
patent: 5059865 (1991-10-01), Bergman et al.
patent: 5214345 (1993-05-01), Saito et al.
patent: 5336969 (1994-08-01), Weiss et al.

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