| 摘要 |
A solar energy concentrator has a secondary linear reflective element 2 receiving sunlight from a primary linear reflective element 1, with the foci lines of the reflective elements orthogonal or perpendicular. The elements 1,2 can be parabolic cylindrical mirrors (fig 4), or the second element 2 could be a Fresnel mirror (fig 3). Secondary element 2 is described as having a greater focal length than primary element 1, and a solar cell 3 can be further from secondary element 2 than its focal point (fig 2). The elements can be off-axis or asymmetric (fig 5). Solar cell 3 can be photo-voltaic or for solar heat, and the concentrator could be retrofitted to existing generators. |
