1. Features
- Optimized for Laser Ranging Systems: SOT’s Laser Ranging Filters are designed for high-precision applications, including laser distance measurement and optical ranging systems.
- Wide Wavelength Compatibility: These filters support a range of wavelengths, including 520nm, 635nm, 650nm, 808nm, 905nm, and 940nm, ensuring versatility in different laser ranging systems.
- Advanced Coating for Enhanced Durability: Coated with hard coatings that ensure high durability and resistance to scratches and environmental degradation, maintaining long-term performance.
- High Transmittance and Optical Density: Filters achieve transmittance levels greater than 90%, with optical densities optimized for accurate light transmission.
- Customizable Solutions: These filters can be customized to meet specific application requirements, including adjustments in transmittance, wavelength, and optical density.
![Laser Ranging filter](https://sot.com.sg/wp-content/uploads/2025/02/2-8-1024x683.webp)
2. General Description
Shape Optics Technologies Pte Ltd (SOT) offers a premium range of Laser Ranging Filters specifically designed for use in laser ranging and LiDAR systems. These filters are engineered to selectively transmit specific wavelengths of light used in ranging applications, ensuring that only the necessary wavelengths pass through, while blocking unwanted light and noise.
Laser ranging technology is used in a variety of applications, including distance measurement, mapping, and navigation. The Laser Ranging Filters provided by SOT are compatible with a range of wavelengths, from 520nm to 940nm, making them suitable for a broad spectrum of LiDAR and laser-based systems. Whether used in autonomous vehicles, industrial measurement systems, or geophysical surveys, these filters help ensure accurate and reliable data capture by optimizing the optical performance of the laser system.
SOT’s filters are manufactured with advanced coating technology to offer excellent optical clarity and robustness, ensuring they perform reliably even in harsh environmental conditions. The filters also feature high optical density and transmittance properties, which contribute to the precision and efficiency of the systems they are used in. Additionally, SOT offers customizable options, allowing filters to be fine-tuned to your specific application needs.
3. Spectrum Transmission Curves
SOT’s Laser Ranging Filters are designed with custom spectrum transmission curves to ensure optimal performance. If standard components are not available, SOT offers customization services based on your application requirements. The curves shown demonstrate the high transmittance for various laser wavelengths, optimizing performance for laser-based measurement systems.
![Laser Ranging filter](https://sot.com.sg/wp-content/uploads/2025/02/Laser-Ranging-filter-1024x388.png)
4. Coating Quality
The Laser Ranging Filters undergo strict quality control to ensure long-lasting performance in demanding applications:
- Adhesion Test: Adheres to MIL-C-675C military standards. The adhesion test involves applying tape that meets LT-90 specifications to the lens film layer, followed by removal, with no blistering or peeling observed after three repetitions.
- Temperature Test: Filters are exposed to temperatures ranging from -62±1℃ to 71±1℃, followed by re-testing at room temperature (16℃–32℃). No film detachment occurs after testing.
- Abrasion Resistance Test: Conforms to MIL-C-675C and CCC-C-440 standards, applying a minimum force of 1.0 lbs (0.45 kg) to the film. The test is repeated 25 times with no damage to the film surface.
- Humidity Test: The filters undergo testing in a controlled chamber with a temperature set to 49±2℃ and 95%-100% humidity for 24 hours. The film remains intact, with no peeling or scratches.
- Solvent and Cleaning Testing: Filters are tested with acetone and alcohol for at least 10 minutes each, followed by air drying and cleaning. No peeling or scratches are observed after cleaning.
- Salt Spray Test: The filters are subjected to a 35°C environment with a 5% saltwater concentration for 100 hours, with no damage observed, ensuring their resistance to corrosive environments.
5. Standard Specifications
Model | CWL (nm) | Transmittance | FWHM (nm) | Optical Density | Note |
NH-BP520 | 520±5 | Tave≥90% | 30-60 | OD≥3@350-1100 | Customizable |
NH-BP635 | 635±5 | Tave≥90% | 30-80 | OD≥3@350-1100 | Customizable |
NH-BP650 | 650±5 | Tave≥90% | 30-120 | OD≥3@350-1100 | Customizable |
NH-BP808 | 808±5 | Tave≥90% | 30-60 | OD≥3@350-1100 | Customizable |
NH-BP905 | 905±5 | Tave≥90% | 30-120 | OD≥3@350-1100 | Customizable |
NH-BP940 | 940±5 | Tave≥90% | 50±3 | OD≥3@350-1100 | Customizable |
6. General Applications and Examples
The Laser Ranging Filters are used in a variety of applications where precision in distance measurement and laser performance is required:
- LiDAR Systems: These filters are used in LiDAR systems for autonomous vehicles, providing highly accurate distance measurements and enabling safe navigation.
- Geophysical Surveying: Employed in surveying and mapping for geological studies, such as terrain mapping and environmental analysis.
- Industrial Measurement Systems: Used in automated systems for quality control, sorting, and inspection in manufacturing processes.
- Environmental Monitoring: These filters are integral to environmental LiDAR applications for forest and vegetation analysis, as well as pollution tracking.
- Defense and Security Systems: Essential for high-precision surveillance systems, target detection, and reconnaissance.
- Aerospace: In aerospace applications, these filters ensure precise measurements for navigation and altitude tracking.
7. SOT Strengths and Capabilities
Shape Optics Technologies Pte Ltd (SOT) has established itself as a leader in providing Laser Ranging Filters that are critical in advanced optical systems. The company’s dedication to quality and performance ensures that every filter meets rigorous standards for optical precision and durability. SOT’s extensive experience in optical coating technology and system design makes it a trusted partner for industries requiring high-precision laser systems, from LiDAR to aerospace. The company is committed to delivering tailor-made solutions that meet specific client needs, ensuring optimal performance in any system.
8. Standard Products
Model | CWL (nm) | Transmittance | FWHM (nm) | Optical Density | Note |
NH-BP520 | 520±5 | Tave≥90% | 30-60 | OD≥3@350-1100 | Customizable |
NH-BP635 | 635±5 | Tave≥90% | 30-80 | OD≥3@350-1100 | Customizable |
NH-BP650 | 650±5 | Tave≥90% | 30-120 | OD≥3@350-1100 | Customizable |
NH-BP808 | 808±5 | Tave≥90% | 30-60 | OD≥3@350-1100 | Customizable |
NH-BP905 | 905±5 | Tave≥90% | 30-120 | OD≥3@350-1100 | Customizable |
NH-BP940 | 940±5 | Tave≥90% | 50±3 | OD≥3@350-1100 | Customizable |