Durable lamp having air cooled moveable bulb

Details Durable lamp having air cooled moveable bulb Durable lamp having air cooled moveable bulb

1998-03-18

2000-05-30

Tso, Laura K.

Illumination

Self powered lamp

With movable focusing element

362288, 362294, 362373, F21V 2900

Patent

active

060683856

ABSTRACT:
A durable lamp, comprising: a hollow main body with a front end, having an inner cavity, which towards the front end forms an open accommodating space; a light bulb, mounted in the accommodating space; a light filter, mounted in front of the light bulb; and a fan, mounted in the cavity, for directing air from outside the main body through the cavity along a ventilation path that passes the light bulb, so as to cool the light bulb during operation.

REFERENCES:
patent: 1286590 (1918-12-01), Grether
patent: 1859481 (1932-05-01), Voorhees
patent: 3299884 (1967-01-01), Moore et al.
patent: 4321659 (1982-03-01), Wheeler
patent: 4344112 (1982-08-01), Brown
patent: 4546420 (1985-10-01), Wheeler et al.
patent: 5055697 (1991-10-01), Manoogian et al.
patent: 5111367 (1992-05-01), Churchill

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