| 摘要 |
The invention relates to a light detecting system for detecting light projected from a projector. When the projector is initiated, it will project a picture image forward. The light detecting system comprises a frame positioned at a predetermined position in front of the projector, a detecting device movably installed on the frame for detecting the picture image, a driving device installed on the frame for moving the detecting device, and a control device connected with the driving device and the detecting device for controlling the driving device to move the detecting device to various sampling positions on the frame and to control the detecting device to detect the picture image at each of the sampling positions.
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