Flashlight with an enhanced spot beam and a fully illuminated br

Details Flashlight with an enhanced spot beam and a fully illuminated br Flashlight with an enhanced spot beam and a fully illuminated br

1993-04-06

1995-10-17

Husar, Stephen F.

Illumination

Self powered lamp

With movable focusing element

362282, 362346, 362347, F21L 700

Patent

active

054596491

ABSTRACT:
A flashlight which selectively provides an enhanced spot beam and fully illuminated broad beam. The modified parabolic reflector produces with either a point source of light or an extended filament source of light a spot beam which is substantially more uniform across its disc as is produced by a conventional parabolic reflector, and a greatly improved broad beam without unilluminated areas. Further, the range of distance in which these effects are provided is importantly increased.

REFERENCES:
patent: 1991753 (1935-02-01), Kurlander
patent: 4398238 (1983-08-01), Nelson
patent: 4605994 (1986-08-01), Krieg

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