With the rapid development of artificial intelligence and optoelectronic technology, many technology giants have entered the field of autonomous driving.
Self-driving cars are smart cars that sense the road environment through on-board sensing systems, automatically plan driving routes, and control the vehicles to reach designated destinations. Among the various environmental sensing technologies used in autonomous driving, lidar is the most commonly used one. It identifies and measures information such as the distance, position, and shape of surrounding objects by emitting a laser beam and receiving its reflected signal.
However, in actual use, lidar will be affected by environmental factors such as light, rain, fog, etc., resulting in a decrease in detection accuracy and stability. To solve this problem, researchers invented lidar filters. Filters are optical devices that regulate and filter light by selectively absorbing or transmitting specific wavelengths.
Common filter types for autonomous driving include:
---808nm bandpass filter
---850nm bandpass filter
---940nm bandpass filter
---1550nm bandpass filter
Material: N-BK7, B270i, H-K9L, Float Glass and so on.
The role of lidar filters in autonomous driving:
Improve Detection Accuracy and Stability
Lidar filters can filter out irrelevant light signals such as ambient light, raindrop reflection, and optical interference, thereby improving lidar detection accuracy and stability. This enables the vehicle to accurately sense its surroundings and make more precise decisions and controls.
Improve Safety Performance
Autonomous driving requires high-precision environmental perception capabilities to ensure vehicle safety on the road. The application of lidar filters can reduce unnecessary interference signals and improve the safety performance of vehicle operations.
Lower the Cost
Traditional radar technology requires expensive detectors and filters. However, installing filters can significantly reduce costs and increase productivity. In the future, with the continuous advancement of technology, lidar filters will be increasingly used in autonomous driving technology, injecting more vitality into the development of autonomous driving. Jiujon Optics have IATF16949 certificate, can provide you with various types of lidar filters, such as 808nm bandpass filter, 850nm bandpass filter, 940nm bandpass filter, and 1550nm bandpass filter. We can also customize filters for different application scenarios. If you have any questions, please feel free to contact us!
Post time: Nov-07-2023
