Halogen-metal vapor discharge lamp

Details Halogen-metal vapor discharge lamp Halogen-metal vapor discharge lamp

1978-10-31

1981-02-03

Rolinec, Rudolph V.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Light diffusing

313220, 313229, H01J 6118

Patent

active

042491029

ABSTRACT:
To increase operating temperature, and hence vapor pressure, the arc tube ose to the arc, typically an inner arc tube, is at least partially frosted. The outer bulb which surrounds the inner arc tube may also be frosted. The lamps have low color temperature and good color rendering index at high luminous output. The fill preferably includes metal halides of rare earth metals, and/or mercury. The outer bulb is preferably in the form of a reflector bulb.

REFERENCES:
patent: 3384771 (1968-05-01), Pomfrett
patent: 4041344 (1977-08-01), LaGiusa

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