LIDAR
LiDAR Principle
- A Time of Flight (ToF) LiDAR (Light Detection and Ranging) system is used in distance measurement by calculating the flight time between the emission of a light pulse and its return to the sensor.
- Pulsed semiconductor lasers are used so that their time of flight (ToF) can be measured, these are known as direct-detection laser rangefinders.
- A low price diode laser or a more powerful pulse semiconductor laser diode at a wavelength of 850~950 nm or 1,550 nm is used in ToF LiDAR.
ToF LiDAR Principle
LiDAR Applications
- Automotive
- Smart City
- Robot
- Drone
- Smart Tolling
- People Counting
- Security
- Hazardous Area Protection
- Smart Factory
Autonomous LiDAR Applications
-
Level 0
Manual Driving
(No Assistance)
-
Level 1
Hands On
(Assisted)
-
Level 2
Hand Off
(Partially Automated)
-
Level 3
Eyes Off
(Highly Automated)
-
Level 4
Mind Off
(Fully Automated)
-
Level 5
Driver Off
(Autonomous)
Level 3, 4 & 5 Key Technology : LiDAR Sensor
Pulse laser diode has been widely used in ToF LiDAR Sensor
QSI’s Pulse LD Lineup for LiDAR Applications
| Applications | Device | Current Status |
|---|---|---|
|
Lidar 
|
905nm 25W 85°C | ● |
| 905nm 50W 85°C | ● | |
| 905nm 75W 85°C | ● | |
| 905nm 21W 85°C | ● | |
| 850nm 30W 85°C | ● | |
| 905nm 125W↑ 85°C | ● | |
| 850nm 40W 4Channel 85°C | ● | |
| 905nm 125W↑ 4Channel 85°C | ● | |
| 1,550nm 20W↑ | * | |
| Multijunction VCSEL | * |
●ES : Engineering Sample
●PP : Pilot Production
●MP : Mass Production
*: Under Development
