Solar ray collecting device
OwnerKei Moriinventor
Life of this patent
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Abstract
A solar ray collecting device is comprised of a supporting base plate on which a large number of hexagonal recesses are provided and a large number of optical systems are arranged on each of said recesses. Each of said optical systems is made up of a hexagonal focusing lens of a dimension that is approximately the same as the hexagonal recesses and of a head-cut hexagonal pyramid which extends downward from the light collecting lens as an upper surface of said recess. An optical conductor which is a light-receiving surface is provided on the focus of said light collecting lens. Furthermore, the upper internal circumferential surface of the side wall forming said recess is so formed that it may be able to move freely on the surface of said hexagonal pyramid.
Claims16
A solar ray collecting device comprising a supporting member, a plurality of recess means in said member, a pyramid means disposed in each of said recess means, said pyramid means having a bottom wall and side walls extending from said bottom wall, said side walls of said pyramid means generally slope outwardly form said bottom wall and having end portions defining a pyramid opening, a focusing lens disposed in said pyramid opening, an optical conductor extending through said bottom wall and having a light-receiving surface within said pyramid means, said light-receiving surface being disposed at the focus of said lens such that solar rays focused by said lens are guided into said optical conductor, and mounting means on said side walls of said pyramid means and on said lens for mounting said lens on said pyramid opening to provide for relative movement between said lens and said pyramid means while maintaining the focus of said lens on said light-receiving surface, whereby the solar ray device effectively collects solar rays under conditions where the lens moves relative to the pyramid means due to temperature changes.
Dependencies are inferred from the claim text.