Ultra-Accelerated Natural Sunlight Exposure Testing Facilities

Patent · Tue Nov 23 00:00:00 EST 2004

OSTI ID:880006

Lewandowski, Allan A ^[1]; Jorgensen, Gary J ^[2]

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1. Evergreen, CO
2. Pine, CO

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.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC36-98GO10337
• Assignee: Midwest Research Institute (Kansas City, MO)
• Patent Number(s): US 6,820,509
• Application Number: 10/423314
• OSTI ID: 880006
• Country of Publication: United States
• Language: English