| 摘要 |
PURPOSE:To easily vary the light collection area as occasion demands by rotating a rotary frame corresponding to the horizontal shifting of the sun, slanting an inclined reflecting plate corresponding to the vertical shifting of the sun, and reflecting the sunshine to right below by the inclined reflecting plate through a fixed reflecting plate. CONSTITUTION:In response to the horizontal motion of the sun, a rotary motor operates to rotate a driving roller 21 so that the quantities of light to the left and right photosensors of a sensor device are equalized to each other. Then, the rotary motor quits operation when the light quantities of the left and right sensors of th sensor device becomes equal and the rotary frame 30 stops while facing the sun. In response to the vertical motion of the sun, an inclining motor rotates to draw a driving shaft under the command of the sensor device and slants an inclined arm, for example, when the sun is above, and the inclined reflecting plate 40 is put in the same motion with the inclined arm to slant. When the sensor device faces the sun, the inclining motor is stopped under the command of the sensor device. Then, the sunshine is collected to right below by the fixed reflecting plate 35. |
