Compound lens solar energy system
Patent 4022186 Issued on May 10, 1977. Estimated Expiration Date: 
May 10, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 10, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 895761 1479923 2791214 2920710 3058394 3125091 3915148 InventorApplicationNo. 05/611861 filed on 09/10/1975US Classes:126/683, With concentrating reflector and concentrating lens126/684, With concentrating reflector126/698, With concentrating lens359/726, With reflecting element359/742Echelon (e.g., Fresnel lens, etc.)ExaminersPrimary: Sprague, Kenneth W.Attorney, Agent or FirmAbstractA 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. | |
