High-density illumination system
First Claim
1. An illuminating system, comprising:
- an electrical interconnection system for interconnecting at least one LED chip to a power source;
a plurality of LED chips spaced apart from one another a distance S less than or equal to a width W of said LED chip;
an array of reflecting bins with each of said bins comprising a clear output aperture and a clear input aperture;
a first light redirecting means disposed beyond said array of metallically reflecting bins that transmits light in a first angular range and reflects light in a second angular range back towards said array of bins;
a second light redirecting means disposed beyond said first light redirecting means that transmits light in a first angular range and reflects light in a second angular range back towards said first light redirecting means; and
said array of metallically reflecting bins disposed above said interconnection plate and each of said LED chips extends through a center of the input aperture.
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Accused Products
Abstract
A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The optical system manipulates light emitted by a planar array of electrically-interconnected LED chips positioned within the input apertures of a corresponding array of shaped metallic reflecting bins using at least one of elevated prismatic films, polarization converting films, micro-lens arrays and external hemispherical or ellipsoidal reflecting elements. Practical applications of the LED array illumination systems include compact LCD or DMD video image projectors, as well as general lighting, automotive lighting, and LCD backlighting.
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Citations
1 Claim
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1. An illuminating system, comprising:
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an electrical interconnection system for interconnecting at least one LED chip to a power source;
a plurality of LED chips spaced apart from one another a distance S less than or equal to a width W of said LED chip;
an array of reflecting bins with each of said bins comprising a clear output aperture and a clear input aperture;
a first light redirecting means disposed beyond said array of metallically reflecting bins that transmits light in a first angular range and reflects light in a second angular range back towards said array of bins;
a second light redirecting means disposed beyond said first light redirecting means that transmits light in a first angular range and reflects light in a second angular range back towards said first light redirecting means; and
said array of metallically reflecting bins disposed above said interconnection plate and each of said LED chips extends through a center of the input aperture.
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Specification