Involute beam concentrator
US4610518A · kind A · utility
Inventor
Key dates
| Filing date | Dec 14, 1984 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Dec 14, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/40
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A glass or metal wall forming an involute curve through three revolutions around a central axis parallel thereto, mounted between parallel front and rear walls perpendicular thereto and forming a chamber which is curved in cross section and rectangular in longitudinal section. The chamber is reflective in the interior and communicates with the exterior through a rectangular port formed by the terminating involute wall and the section of involute wall adjacent thereto. A concentrated rectangular beam of sunlight from a prismatic beam concentrator is projected into the chamber through the port. The beam undergoes further concentration as it curves in toward the center of the concentrator, where it is emitted through an aperture in the rear wall, forming a concentrated circular beam parallel to the axis of the concentrator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.