Brief introduction of 940nm laser liDAR filter

940nm Optical Bandpass Filter for Laser LiDAR Sensor Detection is crafted from premium optical glass with advanced hard-coating technology to ensure durability and precision. Designed for applications such as autonomous driving, robotics, 3D mapping, environmental monitoring, and industrial automation, Coligh Optics delivers customized solutions with high transmission above 95%, angle of incidence with 0 deg to 60 deg. With the high transmission efficicency, accurate wavelength control, this filter offers a robust performance.

Key Features

1. High transmission: With >95% peak transmission at 905nm, the narrow bandpass filter ensure the mixmum signal and optimal the LiDAR system detection
2. Wide Angle Customization capability: With the customization capability from 0 deg AOI to 60 deg AOI, 905nm interference filter meet the demanding alighment requirement of LiDAR design.
3. Durable hard coating provide a excellent environmental resisitance to humidity, tempreture and abrasion.
4. Tailored for LiDAR Applications: Specifically engineered for Laser LiDAR sensors, ensuring compatibility with high-power pulsed lasers and precise ranging in autonomous vehicles, robotics, and environmental monitoring.

940nm NIR Narrow Bandpass Filter Optical Discription

Coligh is a trusted supplier and manufacturer of 905nm NIR narrow bandpass filters optical. With >95% transmision and precise wavelength isolation, these filters enhance signal clarity, ensuring accurate distance measurement and object detection. The wide AOI adaptability (0-60 deg) enables consistent performance in system requiring flecible installation angles or scanning mechanisms.

Optical Filter type:	NIR Bandpass Filter	Substrate:	Float glass, B270, Fused Silica
Center wavelength	905+/-3nm	Angle of Incidence	OEM from 0 deg to 60 deg
Full half bandwidth	40+/-3nm	Coating menthod	Hard Coating
Transmission average	>=95%	Size:	Any Size below 100*100mm
Blcoking wavelength range	200-1100nm	Clear aperture:	>90% of the diameter or size
Blocking depth:	OD3 OD4 and above	Thickness Option:	0.5mm, 0.55mm, 0.7mm, 1.0mm, 1.1mm
Surface quality:	80/50 60/40	Application	Laser LiDAR sensor detection

                                                           940nm Optical Bandpass Filter filter with 0-60 deg AOI Hard coated specification

940nm Optical Filters Applications

The 905nm Optical Filter is commonly used for the following applications:

• Autonomous Vehicles .

  In liDAR systems, 905nm optical filters isolate the laser’s specific wavelength, minimzing the interference from ambient light

•  Robotics

  940nm Optical glass filters are used to collision avoidance, path planning, and object manipulation

•  High-Precision 3D Mapping

  Filters 905nm laser reflections for precise point cloud generation in 3D mapping systems.

•  Industrial Automation and Robotic Navigation

  905nm glass filters Ensures reliable performance in distance sensing and motion control tasks.