1550/10nm Bandpass Filter For Automotive Optics
Coligh specially design 1550nm bandpass filter 10nm bandwidth for automotive optical systems (such as LiDAR, laser radar). It adopts 10nm ultra-narrow bandwidth technology to accurately isolate the 1550nm target wavelength, suppress environmental stray light interference.
- Center wavelength 1550nm: The transmission peak is concentrated at 1550nm wavelength, and the cutoff depth of other bands is high, which can effectively suppress infrared interference, car lights, sunlight and other environmental stray light
- 98% high transmission: The peak transmittance of >=98% can maximize the reception efficiency of laser echo and ensure the detection distance to more than 100 meters.
- Hard Coating: The selection of hard coating and high-quality materials makes the optical performance of the filter extremely stable, rarely has wavelength deviation, and ensures long-term use accuracy
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1550 Bandpass Filter 10nm Bandwidth Description
Coligh specially design 1550nm optical narrow band filter 10nm bandwidth for automotive optical systems (such as LiDAR, laser radar). It adopts 10nm ultra-narrow bandwidth technology to accurately isolate the 1550nm target wavelength, suppress environmental stray light interference.
1550nm Band Filter Data Sheet
| Optical Filter type: | NIR Bandpass Filter | Substrate: | B270, Fused Silica |
| Center wavelength | 1550+/-2 | Angle of Incidence | OEM from 0 deg to 35 deg |
| Full half bandwidth | 10+/-2 | Coating menthod | Hard Coating |
| Transmission average | >=98% | Size: | Any Size custom below 100*100mm |
| Blcoking wavelength range | 200-1800nm | Clear aperture: | >90% of the diameter or size |
| Blocking depth: | OD4 and above or custom | Thickness Option: | 0.5mm, 0.55mm, 0.7mm, 1.0mm, 1.1mm or custom |
| Surface quality: | 80/50 60/40 | Application | Autonomous Driving LiDAR |
1550nm Bandpass Filter Applications
- As the core sensor of the autonomous driving system, the 1550nm wavelength can support a detection distance of more than 100 meters, suitable for highways, urban expressways, etc.
- By suppressing ambient light, it can filter strong light, headlight sources, etc., and can stably identify pedestrians and obstacles at night and in backlight environments
- Through integration with DMS and OMS, 1550nm near-infrared imaging can penetrate glass and capture the driver’s gestures.
