Two-axis tracking solar collector mechanism

Patent · Tue Dec 08 04:00:00 EST 1992

OSTI ID:7235502

Johnson, K C

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. 16 figs.

• DOE Contract Number: AC03-76SF00098
• Assignee: PTO; EDB-94-087244
• Patent Number(s): A; US 5169456
• Application Number: PPN: US 7-781558
• OSTI ID: 7235502
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
CONVERSION
DESIGN
DIRECT ENERGY CONVERSION
ENERGY CONVERSION
ENERGY SYSTEMS
EQUIPMENT
HELIOSTATS
LIGHT TRANSMISSION
LIGHTING SYSTEMS
OPERATION
PHOTOVOLTAIC CONVERSION
SOLAR CELL ARRAYS
SOLAR COLLECTORS
SOLAR ENERGY CONVERSION
SOLAR EQUIPMENT
SOLAR THERMAL CONVERSION
SOLAR TRACKING
SOLAR TRACKING SYSTEMS
USES