초록 ▼

A primary reflector formed as a modified pyramid having a polygonal base located in open exposure to the sun has faces above the base which include reflecting surfaces that intersect at obtuse angles along lines lying in planes perpendicular to the base. The reflecting surfaces form a dihedral and a

A primary reflector formed as a modified pyramid having a polygonal base located in open exposure to the sun has faces above the base which include reflecting surfaces that intersect at obtuse angles along lines lying in planes perpendicular to the base. The reflecting surfaces form a dihedral and are constructed of an externally mirrored material to reflect light impingent thereon into a concentrated field of reflection. At least one and preferably a plurality of secondary reflectors are located within the concentrated field of reflection and are oriented to return light reflected from the dihedral surfaces to the apex of the pyramid. A solar energy collector is located at the apex of the primary reflector to concentrate solar energy reflected first from the primary reflector and then from the secondary reflectors. The secondary reflectors may either be stationary within the path of movement of the concentrated field of reflection, or driven to follow the concentrated field of reflection as it moves throughout a solar day.

대표청구항 ▼

A solar energy collecting system comprising a primary reflector located in open exposure to the sun and formed of a plurality of intersecting reflecting surfaces, at least some of which are bounded by at least two adjacent arris lines of a pyramid having a polygonal base, and at least a pair of said

A solar energy collecting system comprising a primary reflector located in open exposure to the sun and formed of a plurality of intersecting reflecting surfaces, at least some of which are bounded by at least two adjacent arris lines of a pyramid having a polygonal base, and at least a pair of said reflecting surfaces bounded by said adjacent arris lines intersect at an obtuse angle in a line which lies in a plane perpendicular to said base, whereby said pair of reflecting surfaces defines a dihedral, and the reflecting surfaces bounded by said two arris lines reflect light impingent thereon into a concentrated field of reflection, and when projected onto a plane defined by said two arris lines, define a face of said pyramid, at least one secondary reflector located within said concentrated field of reflection and oriented to return light reflected from said reflecting surfaces of said primary reflector to the apex of said pyramid, and solar energy collection means located so as to receive light reflected to the apex of said pyramid. In a solar energy collecting system comprising a reflector disposed on the surface of a backing, the improvement comprising a plurality of planar reflecting surfaces arranged in fixed disposition relative to each other, pairs of said planar surfaces intersecting each other along a line, said line oriented at a non-perpendicular angle to the surface of the backing, said surfaces forming at least one fixed obtuse angle said surfaces reflecting light impingent thereon into a concentrated field of reflection including a region of double reflection, a solar energy collection means, and means for moving said reflector to track the sun while maintaining said reflecting surfaces in the aforesaid fixed disposition relative to each other so that said collection means is continuously located within said region of double reflection. In a solar energy collecting system employing a solar energy collector and at least one reflector for focusing light into said solar energy collector, comprising a backing at least two planar reflecting surfaces which are arranged in fixed disposition relative to each other and which intersect along a line to form at least one obtuse angle and which reflect light impingent thereon into a region of overlapping reflections said line oriented at a non-perpendicular angle to the surface of the backing, and means for mounting said reflector in mobile fashion to track the azimuth and zenith of the sun according to inputs determined by latitude and longitude, time of solar day, and the date of the solar year to maintain said reflector in focus on said solar energy collector with said solar energy collector remaining in said region of overlapping reflections while said reflecting surfaces remain in said fixed disposition relative to each other.