Portable lighting device with light-emitting diode

Details Portable lighting device with light-emitting diode Portable lighting device with light-emitting diode

2007-06-05

2007-06-05

Husar, Stephen F (Department: 2875)

Illumination

Light modifier

Adjustable or positionable

C362S157000, C362S187000, C362S231000, C362S282000, C362S322000

Reexamination Certificate

active

11637902

ABSTRACT:
A portable lighting lamp10comprises an emitting module equipped with at least one light-emitting diode11for emitting a light beam, a fixing and connecting element12of said diode, and an optical focussing device15able to be moved in front of the diode11to make the visualization angle of the light beam vary. The optical focussing device15is advantageously constituted by one or more Fresnel lenses16mounted on a swivelling support17or a rotary knob designed to occupy either an inactive position situated outside the light emission field of the diode or an active position wherein said light beam passes through the lens so as to obtain either broad lighting with a short range or narrow lighting with a long range.

REFERENCES:
patent: 3705983 (1972-12-01), Yamada
patent: 6474837 (2002-11-01), Belliveau
patent: 283 441 (1915-04-01), None
patent: U1 85 15 726.0 (1985-08-01), None
patent: 0 111 818 (1984-06-01), None
patent: 2 745 627 (1997-09-01), None
patent: 2 264 164 (1993-08-01), None
patent: WO 01/57431 (2001-08-01), None

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