905nm Semiconductor Pulsed Laser Rangefinder Engine

Integrated OEM Distance Sensing Solution for Professional UAV Platforms

The NLMA1000 represents a high-performance entry in our series of uav laser rangefinder modules, specifically engineered for strategic OEM integration and high-precision embedded distance measurement. Utilizing advanced 905nm semiconductor pulsed laser technology, this engine delivers accurate, real-time spatial data across a detection range exceeding 1000 meters.

Optimized for the stringent SWaP (Size, Weight, and Power) requirements of modern aerial platforms, these uav laser rangefinder modules feature an ultra-lightweight (≤20g) open-frame architecture (Φ23×46mm). Delivered without an enclosure, this modular design allows system designers to achieve seamless mechanical integration into drones, robotic platforms, and industrial surveillance systems.

The system architecture is further optimized for low-power operation (Average ≤0.3W) and maintains high stability across a wide operating temperature range (-20℃ to +50℃), ensuring mission-critical performance in rugged outdoor environments.

905nm Pulsed Laser

≥1000m Range

±1m Accuracy

≤20g Ultra-light

Class 1 Eye-Safe

Core Performance Advantages

Class 1 eye-safe 905nm laser, fully compliant with IEC 60825-1 certified.
Ultra-compact Φ23×46mm mechanical design for embedded OEM solutions.
Standard TTL digital interface for easy system integration.
Ultra-low power consumption (≤0.3W) for battery-powered devices.
Optimized blind zone performance down to ≤10m.
Wide operating temperature range: -20℃ to +50℃.
IP67 optical lens protection for harsh environments.
Complete PC software and SDK provided for secondary development.
Rugged construction suitable for industrial and outdoor professional use.

Key Operational Functions

Precision laser distance measurement and real-time data output.
Integrated power reverse polarity protection for hardware safety.
Fast boot-up capability for immediate operation upon power-on.
Stable single-shot measurement at 1Hz.

Technical Specifications

Item	Specification	Technical Note
Laser Wavelength	905nm±5nm	905nm Pulsed Laser / Class 1 Eye-Safe
Minimum Detection Distance	≤10m	Short-range blind zone optimization
Maximum Measuring Range	≥1000m (large target)	1km UAV Laser Rangefinder
Distance Accuracy	±1m (≤300m); ±2m (>300m)	≤1m + L×0.25% Accuracy
Measurement Accuracy Rate	≥98%	High-reliability data acquisition
Pulse Repetition Frequency	Single shot only (1Hz)	Stable 1Hz PRF operation
Operating Temperature	-20℃ ~ +50℃	Wide operating temperature range
Storage Temperature	-30℃ ~ +50℃	Extreme environment durability
Communication Interface	TTL	Baud Rate: 115200bps
Supply Voltage	DC 2.5V–3.5V (Typical 3.3V)	Low voltage battery support
Standby Power Consumption	≤0.2W	Ultra-low standby power
Average Operating Power	≤0.3W @3.3V	SWaP-optimized power usage
Dimensions	≤ Φ23mm × 46mm	Cylindrical compact form factor
Weight	≤20g	Lightweight drone altimeter module
Lens Protection	IP67	Optical window protection
Environmental Compliance	RoHS 2.0	Eco-friendly industrial standard

Electrical Interface & Pin Definition

Connector: A1002WR-S-4P (Matching: LNN100-157128-200-4P)

Pin No.	Label	Description	Direction
1	VIN+	Positive power input	Power supply
2	VIN-	Negative power input / GND	Power supply
3	TTL_RXD	Serial data input	Host → Module
4	TTL_TXD	Serial data output	Module → Host

Typical Applications

UAV navigation & terrain sensing (Altitude hold).
Robot obstacle avoidance & precise positioning.
Intelligent traffic monitoring and vehicle sensing.
Construction surveying & infrastructure profiling.
Security & perimeter monitoring integration.
Outdoor measurement & professional exploration tools.
Thermal / night vision system gimbal integration.

Customization: All performance parameters, mechanical structures, and communication interfaces can be customized to meet specific project requirements.

Mechanical & Optical Interface Specification

This section defines the complete mechanical outline, optical window position, mounting hole layout, and assembly tolerances for precise integration. All dimensions (in mm) are optimized for mass production, stable installation, and reliable optical alignment.

Reference Specs: ≤Φ23mm × 46mm Cylinder | Front-end Mounting Structure

Mechanical Outline: Total length of 45.9mm with a compact cylindrical form factor.
Precision Tolerances: Engineered with key tolerance sections of 10±0.05mm, 19±0.02mm, and 50.0±2.2mm to ensure consistent assembly.
Mounting Configuration: Features 3 × Φ1.6mm mounting holes uniformly distributed for secure front-end installation.
Positioning & Alignment: Includes a Φ3.5mm pilot hole designed for precision positioning and anti-rotation stability.
Optical Aperture: Centered coaxial design featuring a high-durability IP67 sealed lens for reliable outdoor performance.
Integration Ready: Optimized for seamless mechanical fit into UAV gimbals, robotic carriers, and industrial sensing platforms.