Light concentrating method, light concentrating device using same, and solar power generator

Abstract

Disclosed herein is a light concentrating device which is arranged in a space defined by three axes orthogonal to each other and has a first specular surface and a second specular surface. The first specular surface concentrates incident lights in any one two-dimensional direction and reflects the incident lights as first reflected lights, and the second specular surface concentrates the first reflected lights in the other two-dimensional direction and reflects the first reflected lights as second reflected lights to reach a target area. Accordingly, the first specular surface and the second specular surface are easy to manufacture. The first specular surface, the second specular surface, and the target area are arranged not to block the first reflected lights and the second reflected lights, so there is no light loss. The first specular surface, the second specular surface, and the target area occupy small areas with respect to a plane perpendicular to the incident lights. Therefore, the present invention can enhance the degree of arrangement integration of the light concentrating devices.