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LiDAR LiDAR

LiDAR

 

LiDAR, which stands for Light Detection and Ranging, is a remote sensing method that measures distance by emitting laser light to a target and measuring its reflection with a sensor. LiDAR is increasingly important in applications such as automotive ADAS (Advanced Driver Assistance Systems), Automated guided vehicle (AGV) and range finding.

Pulsed laser diodes and detectors are employed in LiDAR.

We offer a variety of high-sensitivity photodetectors that can be used for short-, mid-, and long-range detection by ADAS and autonomous vehicles. These include silicon PIN photodiodes, silicon and InGaAs avalanche photodiodes (APD), silicon photomultipliers (SiPM or MPPC), and CMOS distance image sensors.

We also offer custom specific products such as APD arrays integrated wigh Trans impedance Amplifier, to support the specific requirements of different systems.

 

Comparison table

Parameter MPPC® APD PIN photodiode
Range Long Middle Short
Accuracy High High High
Readout circuit Simple Complex Complex
Operation voltage to several tens of V 100 to 200 V to 10 V
Gain 105 10 to 100 1
Temperature sensitivity Middle High Low
Response time Fast Medium Medium
Ambient light immunity Medium Medium High
Array Suitable Suitable Suitable
Gap Narrow Wide Wide
Uniformity Good Depends on the size Good

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