Incandescent lamp-reflector unit

Details Incandescent lamp-reflector unit Incandescent lamp-reflector unit

1976-06-08

1978-03-28

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313315, H01J 516, H01J 6140, H01K 126, H01K 130

Patent

active

040817083

ABSTRACT:
An incandescent lamp-reflector unit having a metal reflector in which, for increasing the reflecting surface, the neck aperture of the reflector is maintained as small as possible, is not flash-over-safe due to the small distance between bare parts of the neck of the reflector and the contact pins of the lamp. The unsafety is removed by causing the said distance to be larger than the smallest distance of the pins and the neck of the reflector by means of an insulating envelope of the pins and/or an insulating coating on and near the end face of the neck of the reflector.

REFERENCES:
patent: 1998967 (1935-04-01), Raynolds
patent: 2795722 (1957-06-01), Burgener et al.
patent: 2843778 (1958-07-01), Falge
patent: 3325665 (1967-06-01), Meijer et al.
patent: 3488543 (1970-01-01), Ridder et al.
patent: 3987326 (1976-10-01), Lindae

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