Diffuser for an arc discharge lamp

Details Diffuser for an arc discharge lamp Diffuser for an arc discharge lamp

1986-10-14

1988-03-22

Moore, David K.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Light diffusing

362355, 362359, H01J 6138, F21V 1100

Patent

active

047331232

ABSTRACT:
A diffuser for an arc discharge lamp having a sealed envelope of light-transmitting vitreous material including at least two longitudinally extending leg members spaced a predetermined distance thereapart and joined together by a transversely extending envelope portion. The diffuser is formed for disposal adjacent the leg members in a predetermined alignment to provide an appearance of a substantially uniform light output from the entirety of the envelope during operation of the lamp. Preferably, the diffuser includes a longitudinally bifurcated member having two leg sections joined together by an intermediate section and can easily be attached to the arc discharge lamp and subsequently removed therefrom upon failure of the lamp.

REFERENCES:
patent: 3634681 (1972-01-01), Johnson et al.
patent: 4208604 (1980-06-01), Courwenberg
patent: 4374340 (1983-02-01), Bouwknegt et al.
patent: 4383200 (1983-05-01), Van Zon et al.
patent: 4426602 (1984-01-01), Mollet et al.
patent: 4481442 (1984-11-01), Albrecht et al.
"Twin Tube Fluorescent System", 3/1985, from GTE.

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