| 摘要 |
Much attention has been focused on solar energy which is one among many forms of green energy in order to solve energy problems. While difficulty exists for the earth to be supplied with constant solar heat due to light scattering or meteorological changes, an efficient method can be devised if a solar cell is installed outside the earth to produce energy and transmit the same. For such purpose, according to the present invention, light produced by a solar cell (1-1) is changed into an electromagnetic wave (1-2) to be transmitted to earth. A rectenna (2-1) on earth receives the transmission to change the same into electric energy. |
