1535nm Laser Ranging Module 18km
DESCRIPTION
The LRF1830C laser ranging module utilizes a 1535nm erbium-glass laser source and operates on the single-pulse Time-of-Flight (TOF) principle, achieving a maximum range of ≥18km (for a 4m×6m target). It integrates a laser emitter, transmitting/receiving optical systems, and a control circuit board, delivering high accuracy (±2m) and multi-target ranging capability (up to three targets). This product is a transceiver lens, suitable for long-distance differential ranging, with a minimum ranging distance of not less than 50 meters.
TECHNICAL SPECIFICATIONS
| Project | Performance Indicators |
| Model | LRF1830C |
| Laser Wavelength | 1.54μm±0.02μm |
| Eye- safety | Class Ⅰ |
| Divergence Angle | ≤0.3 mrad |
| Laser Energy | ≥500 μJ |
| Launch Lens Diameter | Φ18 mm |
| Receiver Lens Diameter | Φ60 mm |
| Measuring Range
（Reflectance 30%; visibility ≥ 18 km.） |
4m×6m Objective ≥18 km |
| Minimum Range | ≤50 m |
| Ranging Frequency | 0.5Hz ~10Hz |
| Number of multi-target detections | RS422 |
| Ranging Accuracy | ±2 m |
| Range Resolution | ≤0.1 m |
| Precision Rate | ≥98% |
| False Alarm Rate | ≤1% |
| Pin-in-lead package model | J30J |
| Supply Voltage | DC12 V |
| Standby power consumption | ≤1.2W |
| Average power consumption | ≤2 W |
| Peak Power Consumption | ≤3W |
| Weight | ≤400g |
| Dimension (L×W×H) | 125mm×100mm×70mm |
| Operating Temperature | -40～+70 ℃ |
| Storage Temperature | -55～+75 ℃ |
| Impact Resistance | Meet the MIL-STD-810G testing standard |
OUTLINE DIMENSION(mm)
PIN INTERFACE
Electrical connector model: J30J; The corresponding plug and cable shall be provided by Party B. The detailed definition of the electrical interface is shown in the following table:
Interface Definition
| Pin | Definition | Function | Remarks |
| 1 | GND | Serial Port Ground | |
| 2 | GND | 12V Input Negative | |
| 3 | GND | 12V Input Negative | |
| 4 | VCC 5V | 12V Input Positive | |
| 5 | VCC 5V | 12V Input Positive | |
| 6 | RS422 RX+ | Serial Port Receive + | From the upper computer to the rangefinder |
| 7 | RS422 RX- | Serial Port Receive - | From the upper computer to the rangefinder |
| 8 | RS422 TX- | Serial Port Transmit - | From the rangefinder to the upper computer |
| 9 | RS422 TX+ | Serial Port Transmit + | From the rangefinder to the upper computer |
