Color filter module for projected light
OwnerBrian Edward Richardsoninventor
Life of this patent
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Abstract
A lighting module that projects various colors, hues, and intensities of light. The device includes a light source and a reflector to direct the light along an optic path. A primary optical element reduces the cross section of effected light regions as the light enters a filter assembly area in the optic path. Filters in the filter assembly are deployed in varying combinations and to varying degrees to produce the color, hue, and intensity of light desired by the user. The refracting action of the optical element allows the filters to be physically positioned in the optic path but to have no effect on the light until the filters are rotated so that filter segments align with optical segments, and the filter changes the light being projected from the lighting module.
Claims20
A device to project various colors, hues, and intensities of light comprising:
- a light source that generates generally parallel light along an optic path,
- a primary optical element comprising an array of optical segments to create an area in said optic path where said light from said light source is divided into a plurality of light regions, each said light region is reduced in area after passing through said optical segment, and
- a filter means comprising at least one filter, each said filter comprises an array of filter segments, said filter means is located in said optic path past said primary optical means;
- wherein
- said filter means is deployed by moving said filter means from a non-deployed position in which said filter segments do not impinge said light regions to a deployed position in which said filter segments impinge said light regions, and an effect of said filter is controlled in degree by controlling an amount of impingement of said filter segments on said light regions.
A device to project various intensities of light comprising:
- a light source that generates generally parallel light along an optic path, and
- a filter means comprising a visible light blocking filter that allows infrared light to pass, said filter comprises an array of filter segments, said filter means is located in said optic path past;
- wherein
- said filter means is concentric with said optic path, and
- said filter means is deployed by rotating said filter means about a longitudinal axis of said optic path from a non-deployed position in which said filter segments do not impinge said generally parallel light to a deployed position in which said filter segments impinge said generally parallel light, and an effect of said filter is controlled in degree by controlling an amount of impingement of said filter segments on said generally parallel light.
Dependencies are inferred from the claim text.