Adjustable beam focus flashlight

Details Adjustable beam focus flashlight Adjustable beam focus flashlight

1990-02-28

1991-01-22

Lazarus, Ira S.

Illumination

Self powered lamp

With movable focusing element

362306, F21L 700

Patent

active

049875230

ABSTRACT:
An illumination device, for example, a flashlight includes an adjustable beam focus assembly to change the relative position of the lamp bulb to the reflector to alternately provide a narrow focused or wide beam being emitted from the device. The adjustable beam focus assembly includes a resilient blade supporting the lamp bulb extending through an opening in a reflector of the device. Beam focusing is achieved by flexing the blade upon application of a displacing force to the base of the bulb by a cam or to the blade itself using a plunger.

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