Adjustable beam portable light
AssigneeTerraLUX, Inc.
InventorAnthony Catalano
Life of this patent
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Abstract
A lighting device is disclosed which provides for an adjustable beam. The adjustable beam involves the use of a hologram diffuser with areas that have different diffusing properties. The different diffusing areas are selectively positionable in a light beam created by the lighting device to provide for an adjustable beam by providing different diffusions of the light.
Claims34
A method for forming an apparatus that disperses light from a light source comprising at least one light emitting diode (LED), each LED having a light emitting semiconductor die that produces light in response to receiving electrical energy, the method comprising:
- providing a holographic diffuser having at least two different solid optical areas each having a different dispersion property, at least one of the optical areas being a light diffusing hologram;
- and
- disposing the diffuser in a positional relationship for movement of the diffuser relative to the light source to operate in at least two different modes for directing light from the light source, each mode corresponding to directing light from the light source selectively through only one of the optical areas.
A lighting device that disperses light from a light source comprising at least one light emitting diode (LED), each LED having a light emitting semiconductor die that produces light in response to receiving electrical energy, the lighting device comprising:
- a holographic diffuser comprising at least two different solid optical areas each having a different dispersion property, at least one of the optical areas being a light diffusing hologram,
- wherein the diffuser is disposed in a positional relationship for movement of the diffuser relative to the light source to operate in at least two different diffusing modes for dispersing light from the light source, each diffusing mode corresponding to directing light from the light source selectively through only one of the optical areas.
Dependencies are inferred from the claim text.