Beam divergence and shape controlling module for projected light

Details Beam divergence and shape controlling module for projected light Beam divergence and shape controlling module for projected light

1998-06-15

2000-04-11

O'Shea, Sandra

Illumination

Light source and modifier

Including reflector

362268, 362282, 362355, 359353, 359599, F21V 500

Patent

active

060480815

ABSTRACT:
A lighting module that diffuses a light beam to modify the size and shape of the projected beam. The device includes a light source and a reflector to direct the light along an optic path. A primary lens element reduces the cross section of an effected light region as the light enters a diffusion assembly area in the optic path. Diffusion elements in the diffusion assembly are deployed in varying combinations and to varying degrees to produce the shape and/or size of light beam desired by the user. The action of the lens element allows the diffusion elements to be physically positioned in the optic path but to have no effect on the light until the diffusion elements are rotated so that diffusion element segments align with lens segments, and the diffusion element changes the light being projected from the lighting module.

REFERENCES:
patent: 4855884 (1989-08-01), Richardson
patent: 5465175 (1995-11-01), Woodgate et al.
patent: 5594526 (1997-01-01), Mori et al.
patent: 5855884 (1992-03-01), Van Den Brandt et al.

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