Electric reflector lamp

Details Electric reflector lamp Electric reflector lamp

1985-12-19

1986-12-30

Moore, David K.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313114, H01J 516

Patent

active

046331263

ABSTRACT:
The electric reflector lamp according to the invention has a blown glass lamp envelope, of which a concave internally mirror-coated wall portion, a translucent wall portion and a tubular wall portion constitute a single blow moulding. Within the lamp envelope is arranged a metal reflector body, which has a concave spherically curved reflecting surface facing the mirror-coated wall portion. Its axis and its center of curvature coincide with the axis and the focus, respectively, of the mirror-coated wall portion. A light source surrounds the focus. The lamp does not or substantially does not, emit stray light and concentrates the generated light very effectively.

REFERENCES:
patent: 2146181 (1939-02-01), Greenmun
patent: 2622222 (1952-12-01), Hageman et al.
patent: 3038372 (1962-06-01), Lessman
patent: 4463410 (1984-07-01), Mori

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