An active range finder with the capability of -18dB SBR, 48dB dynamic range and 120 /spl times/ 110 pixel resolution

The active range finder with 120/spl times/110 pixels achieves a projected light detection with high SBR (Signal-to-Background Ratio). The sensing scheme realizes a selective light detection under -18 dB SBR with a dynamic range exceeding 48 dB. The maximum frame rate is 2000 frames/s and the maximum range error is 1.5 mm at a distance of 1000 mm.