Phosphorescent flash-light

Details Phosphorescent flash-light Phosphorescent flash-light

1984-01-30

1985-10-08

Lechert, Jr., Stephen J.

Illumination

Light source or light source support and luminescent material

362186, 362202, F21V 916

Patent

active

045464162

ABSTRACT:
A flashlight is fabricated from a conventional design and a conventional means for energizing it. The flashlight has a casing for holding the batteries. The casing is closed at one end and the other end is flared for holding the reflective dish, which has the bulb secured through an opening in its base. A transparent lens seals the volume of the dish. A bezel or rim attaches around the circumference of the lens. The bezel is made of a translucent plastic material, which has a phosphor material embedded into it. When the bulb is energized, the light beam touches the periphery of the bezel as it shines and charges the phosphor material. The flashlight and bezel can also be left in the sunlight to charge the phosphor material. After the phosphor material has been charged, the bezel emits a long-lasting glow called phosphorescence so that the flashlight can be found in the dark.

REFERENCES:
patent: 1285382 (1918-11-01), Renshaw
patent: 2259416 (1941-10-01), Gardner
patent: 3005102 (1961-10-01), MacHutchin et al.
patent: 3449558 (1969-06-01), Whitmer
patent: 3796869 (1974-03-01), Stone

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