Illumination – Light source and modifier – Ionized gas or vapor light source
Patent
1982-12-10
1986-01-07
Nelson, Peter A.
Illumination
Light source and modifier
Ionized gas or vapor light source
362 80, 362347, 362294, 362350, 362307, 362267, 362310, 362311, F21V 2900
Patent
active
045637300
ABSTRACT:
A lamp is attached to the back end of a synthetic resin reflector through a synthetic resin lamp holder. A heat shielding member made of a metal such as stainless steel, aluminium or general steel plate is appropriately attached to the lamp holder to cover the circumferential face of said lamp holder in such a way that said circumferential face is not subjected directly to the light projected from a filament in the lamp.
REFERENCES:
patent: 2261508 (1941-11-01), Trippe
patent: 3818215 (1974-06-01), Schmidt et al.
patent: 4149229 (1979-04-01), Draper
patent: 4282565 (1981-08-01), Hanson et al.
patent: 4412273 (1983-10-01), Helbig et al.
Ichikoh Industries Ltd.
Nelson Peter A.
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