| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a condenser for condensing nearly all the incidence lights at a solar battery, regardless of the direction of the sun, and a condensation-type solar battery module using the condenser. SOLUTION: This condenser is used, made of a transparent material whose refractive index is larger than that of air, with its section in trapezoidal shape, one and the other of a set of opposing angles on a diagonal line in the trapezoid is equal to or larger than 90 degrees and larger than 90 degrees, respectively, a light incidence surface where light enters is in parallel with a light emission surface where light is emitted, the light incidence surface is larger than that light-emitting surface, and a reflection film is arranged on the other two surfaces. Also, a solar battery is fitted to the light emission surface of the condenser, thus composing the condensing-type solar battery module.</p> |
