Laser Radar DENSO’s long-life laser radar precisely recognizes preceding vehicles using two-dimensional laser scanning. How it works: The laser radar emits a laser toward a preceding vehicle. The laser radar detects light reflected from the vehicle ahead. It converts the light into electrical signals. It calculates the vehicle’s position including distance and angle.

Benefits and Features

• Wider scanning range and less false detection
  • Rotating a polygon mirror with different surface incline angles allows two-dimensional laser scanning at a wide horizontal angle – ± 18 degrees at most.
• Long life and small size
  • DENSO-developed laser diode and reduced sensor window size mean the laser radar is smaller and lasts longer.
• Measurement over long distances to preceding vehicles
  • The DENSO-developed laser diode produces the world’s largest laser power – 34 watts, allowing measurement of longer distances.
• Precise measurement of the distance to preceding vehicles
  • Large scale integrated (LSI) circuit, with newly developed time measurement capabilities, achieves a time measurement of 0.5 nanoseconds (5×10^-10 seconds). This means the laser radar, using the LSI circuit, can detect, with an error rate of only a few centimeters, the distance to a vehicle 100 meters ahead.
    

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