Locomotive LED/Optics Headlight Assembly
First Claim
1. A headlamp assembly comprising:
- a housing forming an internal chamber and forming an opening to one side that opens into the chamber;
at least a first light source having a first illumination axis, the first light source mounted in a central portion of the internal chamber substantially at a first depth and to direct light out the opening;
at least a second light source having a second illumination axis, the second light source mounted in a circumferential portion of the chamber substantially at a second depth and positioned to direct light out the opening wherein the first depth is greater than the second depth;
a first aspherical lens formed about a first optic axis, the first aspherical lens mounted within the opening with the first optic axis aligned with the first illumination axis so that the first aspheric lens substantially collimates at least a portion of the light from the first light source; and
a second aspherical lens formed about a second optic axis, the second aspherical lens mounted within the opening with the second optic axis aligned with the second illumination axis so that the second aspheric lens substantially collimates at least a portion of the light from the second light source.
1 Assignment
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Accused Products
Abstract
A headlamp assembly comprising a housing forming an internal chamber and forming an opening to one side, at least a first light source having a first illumination axis, the first light source mounted in a central portion of the internal chamber substantially at a first depth, at least a second light source having a second illumination axis, the second light source mounted in a circumferential portion of the chamber substantially at a second depth wherein the first depth is greater than the second depth, a first aspherical lens formed about a first optic axis, the first aspherical lens mounted within the opening with the first optic axis aligned with the first illumination axis and a second aspherical lens formed about a second optic axis, the second aspherical lens mounted within the opening with the second optic axis aligned with the second illumination axis.
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Citations
27 Claims
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1. A headlamp assembly comprising:
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a housing forming an internal chamber and forming an opening to one side that opens into the chamber; at least a first light source having a first illumination axis, the first light source mounted in a central portion of the internal chamber substantially at a first depth and to direct light out the opening; at least a second light source having a second illumination axis, the second light source mounted in a circumferential portion of the chamber substantially at a second depth and positioned to direct light out the opening wherein the first depth is greater than the second depth; a first aspherical lens formed about a first optic axis, the first aspherical lens mounted within the opening with the first optic axis aligned with the first illumination axis so that the first aspheric lens substantially collimates at least a portion of the light from the first light source; and a second aspherical lens formed about a second optic axis, the second aspherical lens mounted within the opening with the second optic axis aligned with the second illumination axis so that the second aspheric lens substantially collimates at least a portion of the light from the second light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A headlamp assembly comprising:
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a housing forming an internal chamber and forming an opening to one side that opens into the chamber; at least a first light source having a first illumination axis, the first light source mounted in the internal chamber to direct light out the opening; at least a second light source having a second illumination axis, the second light source mounted in the chamber and positioned to direct light out the opening; a first aspherical lens formed about a first optic axis, the first aspherical lens mounted within the opening with the first optic axis aligned with the first illumination axis so that the first aspheric lens substantially collimates at least a portion of the light from the first light source so that the first light source creates a light pattern including an intense central spot and a halo there around where the halo is separated from the intense spot by a low luminance ring; and a first concentrator lens formed about a second optic axis, the first concentrator lens mounted within the opening with the second optic axis aligned with the second illumination axis so that the first concentrator lens creates a light pattern that is intense within the low luminance ring. - View Dependent Claims (16, 17, 18, 19)
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20. A headlamp assembly comprising:
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a housing forming an internal chamber and forming an opening to one side that opens into the chamber; a plurality of light sources, each light source having an illumination axis and each mounted in the internal chamber to direct light out the opening, the plurality of light sources including a first light source; a first aspherical lens formed about a first optic axis and having a first depth along the first optic axis, the first aspherical lens mounted within the opening with the first optic axis aligned with the illumination axis of the first light source so that the first aspheric lens substantially collimates at least a portion of the light from the first light source; a plurality of second aspherical lenses, each of the second aspherical lenses formed about a separate optic axis and having a second depth along the separate optic axis that is less than the first depth, each second aspherical lens mounted within the opening with the separate optic axis aligned with one of the illumination axis of one of the light sources so that each second aspherical lens substantially collimates at least a portion of the light from the aligned light source; wherein, the all of the optic axis are substantially parallel and wherein the second aspherical lenses surround the first aspherical lens. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A headlamp assembly comprising:
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a housing forming an internal chamber about a housing axis and forming an opening to one side that opens into the chamber; a plurality of light sources, each light source having an illumination axis and each light source mounted within the chamber to direct light out the opening; a first plurality of aspherical lenses, each aspherical lens formed about an optic axis and mounted within the opening with the optic axis of the lens aligned with one of the illumination axis; and a second plurality of concentrator lenses, each concentrator light source forms about an optic axis and mounted within the opening with the optic axis of the lens aligned with one of the illumination axis; wherein the light pattern generated by the light sources and first and second pluralities of lenses is substantially symmetric irrespective of orientation of the housing with respect to the housing axis.
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27. A light comprising:
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a light source that generates light centered along an illumination axis; an aconical reflector formed about the illumination axis, the reflector having a reflector surface that is symmetrical about the illumination axis and that is open at first and second ends where the reflector tapers away from the illumination axis between the first and second ends and where the angle formed between the surface reflector surface and the illumination axis is different at different locations along the reflector surface, the reflector mounted with the light source located within the opening at the first end; an aspherical optic mounted at the second end of the aconical reflector; wherein, a first portion of the light from the light source directly enters the optic and is collimated by the optic to generate a high intensity light spot along the illumination axis and a second portion of the light from the light source reflects off the reflector and enters the optic and emanates from the optic at angles with respect to the illumination axis to generate a low luminance halo about the illumination axis and separated from the spot.
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Specification