Image Number 13 for United States Patent #8129668.
A solar tracking and concentration device, including a reflecting unit, a receiving unit, a controlling device, and a plurality of photo sensors, is provided. The receiving unit is used to receive the sunlight reflected and reflected by the reflecting unit. The receiving unit and the reflecting unit face each other. The receiving unit is adapted to move along a first direction. According to the position and the time of the reflecting unit, the controlling device controls a rotation angle of a support element and controls a first moving position of the receiving unit moving along the first direction, in which the support element supports the reflecting unit and the receiving unit. The photo sensors are used to detect the sunlight reflected by the reflecting unit to the receiving unit, and are adapted to output a first feedback signal to calibrate a direction of the receiving unit facing the reflecting unit.
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