Ultra-Accelerated Natural Sunlight Exposure Testing Facilities

U.S. Patent 6,820,509

Technology Description A multi-faceted concentrator apparatus for providing ultra-accelerated natural sunlight exposure testing for sample materials under controlled weathering conditions comprising: facets that receive incident natural sunlight, transmits VIS/NIR and reflects UV/VIS onto a secondary reflector that delivers a uniform flux of UV/VIS onto a sample exposure plane located near a center of a facet array in a chamber that provide concurrent levels of temperature and/or relative humidity at high levels of up to 100.times. of natural sunlight that allow sample materials to be subjected to accelerated irradiance exposure factors for a significant period of time of about 3 to 10 days to provide a corresponding time of about at least a years worth representative weathering of sample materials. This application is a division of U.S. application Ser. No. 09/521,731, filed Mar. 9, 2002, and now U.S. Pat. No. 6,604,436, and which was a continuation-in-part of U.S. application Ser. No. 09/006,746, filed Jan. 13, 1998, and now U.S. Pat. No. 6,073,500.

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Browse related Patents, Trademarks and Copyrights U.S. Patent 6,073,500 - Ultra-Accelerated Natural Sunlight Exposure Testing U.S. Patent 6,604,436 - Ultra-Accelerated Natural Sunlight Exposure Testing Facilities See the full U.S. Patent for this technology. NREL is looking for an organization to develop and commercialize this innovative technology. Interested organizations may consider developing/commercializing this technology through a license agreement, Cooperative Research Agreement, or Work for Others agreement. Please contact Richard Bolin at (303) 275-3028 for licensing, CRADA, and Work for Others opportunities.

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