Two-axis tracking solar collector mechanism

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868580

Johnson, Kenneth C ^[1]

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1. 201 W. California Ave. #705, Sunnyvale, CA 94086

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: Johnson, Kenneth C. (201 W. California Ave. #705, Sunnyvale, CA 94086)
• Patent Number(s): US 5169456
• OSTI ID: 868580
• Country of Publication: United States
• Language: English

Related Subjects

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practical features
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