Laser Measurement Optical Filter
With the rapid development of laser technology, laser measurement and laser distance measurement have been widely used in automation, construction, industrial inspection and navigation.
In these applications, the performance and accuracy of laser sensing systems are often affected by external ambient light interference. Such devices usually work in complex outdoor environments and are easily interfered by sunlight, reflected light and other ambient light sources.
As a leading optical filter manufacturer, Coligh Optics Technology is committed to providing high-quality filter solutions for various laser applications, helping customers cope with complex measurement environments and improve the measurement accuracy of laser systems.
The optical filters developed by Coligh Optics Technology can effectively isolate ambient light interference and optimize the signal quality of laser systems. Here are a variety of filter solutions we provide for laser measurement and laser ranging applications:
For laser rangefinders:
- Bandpass filters
- Narrowband filters
- Purpose: Applicable to laser wavelengths such as 532nm, 905nm, and 1064nm, accurately filtering out interference from light sources with non-target wavelengths.
These filters have high optical density (OD), ensuring that laser rangefinders can still accurately measure distances in strong light environments.
For LIDAR and Laser Alighment application
- Narrowband large-angle incident angle bandpass filters
- Long-wave pass filters (effectively block short-wavelength ambient light)
- Short-wave pass filters (isolate far-infrared light to improve system signal-to-noise ratio)
Purpose: In LIDAR and optical alignment applications, filter out unnecessary ultraviolet and infrared light to improve signal clarity.
Application Examples
- Industrial Automation: In industrial inspection, Coligh’s laser bandpass filters help ensure high-precision non-contact distance measurement
- Architectural Surveying Laser Rangefinder: Coligh’s narrowband filters can effectively filter out excess ambient light to ensure measurement stability.
- LIDAR System: It can filter out excess reflected light and stray light to achieve accurate target identification and distance sensing.
Coligh’s Advantages
- Customized Service: Coligh has rich experience in optical design and can provide customized filters according to customers’ special needs.
- High-quality materials: Use high-quality coating materials such as Ba(NO₃)₂ to ensure the durability and stability of the filter in various environments.
- Strict quality control: Each filter undergoes rigorous spectral testing to ensure its high transmittance and low attenuation within a specific wavelength range.
For more information about the technical parameters and application cases of Coligh optical filters, please feel free to contact us. We will wholeheartedly provide you with the best optical solutions.
