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US 4,022,186 AGranted
Compound lens solar energy system
OwnerLeonard L. Northrup, Jr.inventor
Life of this patent
Estimating the term…
Abstract
A solar collector includes an elongated heat exchange element onto which the sun's rays are to be directed. A compound concentration lens system is mounted to direct the sun's rays onto the heat exchange element and includes a center refractor extending the length of the element for refracting the sun's rays onto the portion of the surface of the heat exchange element facing the sun. A pair of reflectors extend on each side of the refractor, said reflectors each having a plurality of parallel prisms arranged one above the other for reflection of light onto the sides of the heat exchange element.
Claims1
A solar collector comprising:
- an elongated heat exchange element onto which the sun's rays are to be directed,
- a compound concentration lens system mounted to direct sun's rays onto said element and formed of a center refractor extending the length of said element to refract sun's rays onto the surface of said element facing the sun, and
- a pair of reflectors extending the length of said element, one on each side of said refractor, said reflectors each having a plurality of parallel prisms arranged one above the other for reflection of light onto the sides of said element.
Dependencies are inferred from the claim text.