Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent
1997-06-25
1999-06-08
Patel, Ashok
Electric lamp and discharge devices
With gas or vapor
Incandescent filament lamp
313578, 313636, 501 65, 501 68, 501 70, H01K 122
Patent
active
059107073
ABSTRACT:
A glass halogen lamp which exhibits improved short wavelength light transmission and emission having a glass envelope which is made of a glass composition of the aluminosilicate system in which the iron content of the composition is between 10 and 100 ppm. The glass envelope of the lamp may optionally contain an area of reduced wall thickness which further enhances short wavelength light transmission and emission.
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Patel Ashok
Welch Allyn Inc.
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