630/20nm Optical Narrow Bandpass Filter For LiDAR Ranging
630/20nm optical filter is an optical filter with central wavelength of 630 nm and bandwidth of 20 nm. Coligh provides high quality 630/20nm filters with high transmission and deep blocking depth for LiDAR ranging application.
- High transmission to 97%
- With a narrow bandwidth 20nm
- Blocking depth above OD4
- Highly stable and reliable performance
- Wide angle of incidence (AOI) range 0-35 degrees
630/20nm Optical Narrow Bandpass Filter Discription
Coligh is a leading supplier of 630/20nm optical narrow bandpass filter. It effectively transmits 620-640nm light, shields other wavelengths of light, and isolates stray light. When it is used to receive reflected light, it enhances radar signals and improves the signal-to-noise ratio. Through the 0-35 degree incident angle change and high transmittance deep cutoff depth, the target reflected light can be extracted more clearly within the range of long distance and large angle.
630/20nm Optical Narrow Bandpass Filter Spectrum Curve
630/20nm Narrow-band interference filter specification
| Optical Filter type: | Visible Bandpass Filter | Substrate: | Float glass, B270, Fused Silica |
| Center wavelength | 630+/-3 | Angle of Incidence | OEM from 0 deg to 35 deg |
| Full half bandwidth | 20+/-3 | Coating menthod | Hard Coating |
| Transmission average | >=95% | Size: | Any Size custom below 100*100mm |
| Blcoking wavelength range | 200-1100nm | Clear aperture: | >90% of the diameter or size |
| Blocking depth: | OD4 and above | Thickness Option: | 0.5mm, 0.55mm, 0.7mm, 1.0mm, 1.1mm or custom |
| Surface quality: | 80/50 60/40 | Application | lidar light detection |
630/20nm Narrow bandwidth Optical Filter Applications
In the LiDAR system, the 630nm optical narrow bandpass filter helps the system achieve high-precision distance measurement and environmental perception through its specific optical characteristics.It is mainly used in the following aspects:
- In autonomous driving, the receiver uses a 630nm narrow band filter to filter out ambient light of other wavelengths, calculate the distance of obstacles, and generate a 3D environmental map
- The LiDAR system carried by the drone emits a 630nm laser, and the reflected light passes through the 630nm filter to scan the ground and surrounding environment
- In industrial measurement, the industrial LiDAR system uses a 630nm laser to measure the distance, size and position of objects
- The robot can be equipped with a LiDAR system to emit a 630nm laser to scan the surrounding environment
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