Vessel shapes and coil forms for electrodeless discharge lamps

Details Vessel shapes and coil forms for electrodeless discharge lamps Vessel shapes and coil forms for electrodeless discharge lamps

1993-10-19

1998-03-31

Lee, Thomas D.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313494, 313635, 313634, 313493, 315248, H01J 516, H01J 162, H05B 4116

Patent

active

057342210

ABSTRACT:
A discharge vessel for an electrodeless lamp having a pair of substantially parallel front and back walls. In one implementation, the front wall of the discharge vessel has a collimating structure, e.g a fresnel lens, for directing the light in a preferential direction such as in a flood light. In another implementation, the flat discharge vessel is quadrilateral and together with one or more quadrilateral excitation coils can be used as a backlight for a flat panel display. In yet another implementation, a cup-shaped discharge vessel with a collimating structure on the front wall is used in an electrodeless lamp for a task lighting such as a spot light.

REFERENCES:
patent: 4005330 (1977-01-01), Glascock, Jr.
patent: 4119889 (1978-10-01), Hollister
patent: 4245179 (1981-01-01), Buhrer
patent: 4266167 (1981-05-01), Proud et al.
patent: 4675577 (1987-06-01), Hanlet
patent: 4872741 (1989-10-01), Dakin et al.
patent: 4950059 (1990-08-01), Roberts
patent: 5013975 (1991-05-01), Ukegawa et al.
patent: 5500574 (1996-03-01), Popov et al.
D. Hollister et al., "A Xenon Lamp With Two Less Electrodes", Electro-Optical Systems Design, Feb. 1971, 6 pgs.

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