A
solar energy device with parallel dioptric lens: parallel rays are emitted through a dioptric lens before overlapping and projecting in an area on a focusing plane, but no focus is formed. Compared with convex lenses, the
maximum temperature of the invented focusing and photoelectric
cell while working can be lowered by nearly one hundred centigrades in the same ratio; therefore, the power generation efficiency is rather high. Besides, two actual examples are also provided including a
solar energy device with a one-dimensional parallel dioptric lens. The dioptric lens 1 comprises a plurality of saw-tooth shaped dioptric lenses 3 on a glass plate 2. The dioptric lenses 3 are composed of an inclined plane of
refraction 4 and an horizontal plane of
refraction 5. The rays emitted through the dioptric lens include
refraction, but no focus, and the projection formed on the photoelectric
cell 6 is a beam. Sun-light is focused through the one-dimensional dioptric lens 1 on the photoelectric
cell 6 before being converted into
electric energy and
thermal energy. The
electric energy is output through cables; the
thermal energy is exchanged through a
heat exchanger 8 for transmission. When the incident angle of sun-light is changed, the photoelectric cell 6 can also move vertically while tracing the light in a focusing plane 7.