The Challenge of Small Target Detection
Conventional laser rangefinders struggle significantly when measuring small, low-reflectivity targets like consumer drones. Standard devices often fail beyond 300 meters when targeting a typical DJI drone, creating serious limitations for security, surveying, and defense applications. This performance gap has persisted despite advances in other optical technologies.
Breakthrough Optical Engineering
Technical Superiority for Drone Detection
Sunflaser’s new generation of laser distance meters (SFB1500AW, SFB2000AW, and SFB3000AW) solves this critical challenge through a novel approach to beam divergence optimization. By carefully engineering the laser emission pattern, these devices maintain sufficient energy density at the target while ensuring adequate beam coverage to capture sufficient return signal from small, irregular drone structures.
“The key innovation isn’t simply about widening the beam,” explains our optical engineering lead. “It’s about finding the precise divergence sweet spot that maximizes signal return from small targets while maintaining ranging accuracy and eye safety.”
Our engineering team has developed three complementary models with specialized capabilities for various operational requirements:
| Model | Max Range (Drone) | Beam Divergence | Precision | Operating Temp |
|---|---|---|---|---|
|
SFB1500AW |
≥1500m |
≥1mrad |
≤±1m |
-40℃～+60℃ |
|
SFB2000AW |
≥2000m |
/ |
≤±2m |
-40℃～+60℃ |
|
SFB3000AW |
≥3000m |
0.7~0.8mad |
≤±2m |
-40℃～+60℃ |
All three models feature 1535nm eye-safe laser technology, temperature compensation systems, and advanced signal processing algorithms that filter environmental noise while preserving weak return signals from small targets.
Real-World Applications
These long-range laser measurement systems deliver game-changing capabilities across multiple sectors. Security teams monitoring critical infrastructure can now detect unauthorized drones at distances that provide meaningful response time. Surveyors working in complex environments benefit from reliable measurements to small reference points at unprecedented ranges. Defense applications gain early warning capabilities against small UAV threats.
Frequently Asked Questions
Q: How do these laser rangefinders achieve longer drone detection than conventional models?
A: Our proprietary beam divergence optimization creates the ideal balance between energy density and coverage area, capturing more return signal from small target surfaces.
Q: Are these laser rangefinders safe for operation around people?
A: Yes, all three models operate at 1535nm wavelength, which is classified as eye-safe and poses minimal risk to human operators and bystanders.
Q: What weather conditions affect performance?
A: Like all optical systems, heavy fog, rain, or snow will reduce effective range. However, our signal processing algorithms maintain performance in challenging atmospheric conditions better than conventional range finders.
Q: Can these devices integrate with existing security systems?
A: Absolutely. Each model features RS422/TTL communication interfaces and standard protocols for seamless integration with command and control systems.
This technological advancement redefines what’s possible in small target detection. When your mission requires reliable laser distance measurement to drone-sized targets at extended ranges, Shengfei’s divergence-optimized laser rangefinders deliver the performance edge you need. Visit our website to discover which model best suits your operational requirements.
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