Shape Optics Technologies (SOT) offers a dedicated series of optical filters designed for drone-based remote monitoring systems, covering a broad spectral range from UV to visible, NIR, SWIR, and MWIR infrared bands. These filters are optimized for aerial imaging payloads, where wide field of view, spectral stability, and high transmission are critical.
SOT drone filters are engineered to maintain minimal spectral shift at large incidence angles, ensuring accurate spectral performance even under wide-angle drone optics. Custom sizes and shapes are supported to meet the mechanical and optical constraints of UAV camera modules.
Key Applications
Drone optical filters are widely used in:
- Forest Fire Monitoring – Early detection of combustion signatures and hot spots
- Agricultural Monitoring – Crop health analysis and multispectral imaging
- Corona & Arcing Detection – UV detection of discharge from high-voltage equipment
- Range Finding – LiDAR and distance-measurement systems
- Image Recognition & Surveillance – Enhanced contrast and spectral selectivity for AI vision systems
Key Benefits
- Wide Field of View with Minimal Spectral Shift: Optimized for drone optics operating at large angles of incidence
- High Transmission: Maximizes signal throughput for improved detection sensitivity
- Excellent Thermal Stability: Reliable spectral performance under varying altitude and temperature conditions
- Flexible Size & Shape: Custom apertures, dimensions, and substrates available upon request
Standard Drone Filter Products
UV, VIS, NIR, SWIR & IR Bands
| Band | CWL | FWHM | Peak Transmission | Blocking |
|---|---|---|---|---|
| UV | 266 nm | 20 nm | T > 20% | OD12 @ 300–700 nm |
| VIS | 440 nm | 15 nm | T > 90% | OD4 @ UV–1200 nm |
| 505 nm | 20 nm | T > 90% | OD4 @ UV–1200 nm | |
| 665 nm | 15 nm | T > 90% | OD4 @ UV–1200 nm | |
| NIR | 840 nm | 15 nm | T > 90% | OD4 @ UV–1200 nm |
| 905 nm | 15 nm | T > 90% | OD4 @ UV–1200 nm | |
| 940 nm | 15 nm | T > 90% | OD4 @ UV–1200 nm | |
| SWIR | 1550 nm | 60 nm | T > 90% | OD4 @ UV–1800 nm |
| 1575 nm | 60 nm | T > 90% | OD4 @ UV–1800 nm | |
| IR (MWIR/LWIR) | 3.4 µm | 140 nm | T > 85% | OD3 @ UV–11 µm |
| 4.66 µm | 180 nm | T > 85% | OD3 @ UV–11 µm | |
| 5.33 µm | 300 nm | T > 85% | OD3 @ UV–11 µm | |
| 7.3 µm | 180 nm | T > 85% | OD3 @ UV–11 µm |
Customization & Engineering Support
If standard drone filter configurations do not fully meet your requirements, SOT provides custom optical filter design services, including:
- Custom center wavelengths & bandwidths
- Enhanced blocking levels
- Wide-angle spectral optimization
- UAV payload-specific mechanical integration
Contact our technical team to discuss your drone imaging or remote sensing project.