1535nm Long Range Laser Rangefinder Module 18km for Vehicle Target
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PRODUCT DESCRIPTON
ERDI LASER® LRF1831C is a long-range 1535 nm Class I laser rangefinder module designed for integration into EO/IR payloads, surveillance systems, UAV platforms and other demanding electro-optical systems. With a large Φ60 mm receiver aperture, the LRF1831C provides ranging performance of up to 12,000 m against a 20 × 20 m target under specified line-of-sight conditions. It can also achieve ≥6,500 m against a 5 × 15 m target, making it suitable for long-range target observation and ranging applications.
Key Advantages
12 km-Class Long-Range Ranging: Up to 12 km ranging against large targets under specified conditions, supporting long-distance EO/IR observation and surveillance applications.
1535 nm Class I Eye-Safe Laser: Combines 1535 nm laser technology with Class I eye-safety for integration into professional electro-optical platforms.
Large-Aperture Optical Reception: A Φ60 mm receiver lens provides strong optical collection capability for long-range target echo detection.
Three-Target Ranging: Detects up to three targets and provides near/far target indication, enabling more effective ranging in complex scenes.
Built-In Self-Test: Monitors APD temperature, high-voltage value, internal voltage and blind-zone value to support system diagnostics and maintenance.
Standby Wake-Up Function: Supports standby wake-up operation for more flexible system-level power management.
Rugged OEM Integration: The module supports RS422 communication, DC12 V power input and operation from -40°C to +70°C. Impact and vibration resistance meet MIL-STD-810G testing requirements.
TECHNICAL PARAMETERS
| PROJECT | PERFORMANCE INDICATORS |
| Model | LRF1831 C |
| Laser Wavelength | 1535nm±0 .005μm |
| Eye-safety | Class Ⅰ |
| Divergence Angle | ≤1 .3 mrad |
| Laser Energy | ≥350 μJ |
| Main Functions of the Laser Rangefinder: | a)Single-shot and continuous ranging; b)Three-target ranging with near/far target indication; c)Self-test function (including current APD temperature,high-voltage value,internal voltage,and blind-zone value); d)Standby wake-up function. |
| Receiver Lens Diameter | Φ60 mm |
| Measuring Range | a)Under line-of-sight conditions,with visibility not less than 15 km and humidity not greater than 80%(at 30 °C),the ranging distance for Target 1 (5 m ×15 m)is ≥6,500 m. b)Under line-of-sight conditions,with visibility not less than 15 km and humidity not greater than 80%(at 30 °C),the ranging distance for a target with diffuse reflectance not less than 30%(20 m ×20 m)is ≥ 12,000 m. |
| 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 | ≤410g |
| Dimension (L×W×H) | 113×76×90mm |
| Operating Temperature | -40～+70 ℃ |
| Storage Temperature | -55～+75 ℃ |
| Impact Resistance | Meet the MIL-STD-810G testing standard |
| Vibration Resistance | Meet the MIL-STD-810G testing standard |
DIMENSION(mm)
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 |
Information Download
-
PRODUCT DESCRIPTON
-
TECHNICAL PARAMETERS
-
DIMENSION(mm)
-
INTERFACE
-
Information Download
ERDI LASER® LRF1831C is a long-range 1535 nm Class I laser rangefinder module designed for integration into EO/IR payloads, surveillance systems, UAV platforms and other demanding electro-optical systems. With a large Φ60 mm receiver aperture, the LRF1831C provides ranging performance of up to 12,000 m against a 20 × 20 m target under specified line-of-sight conditions. It can also achieve ≥6,500 m against a 5 × 15 m target, making it suitable for long-range target observation and ranging applications.
Key Advantages
12 km-Class Long-Range Ranging: Up to 12 km ranging against large targets under specified conditions, supporting long-distance EO/IR observation and surveillance applications.
1535 nm Class I Eye-Safe Laser: Combines 1535 nm laser technology with Class I eye-safety for integration into professional electro-optical platforms.
Large-Aperture Optical Reception: A Φ60 mm receiver lens provides strong optical collection capability for long-range target echo detection.
Three-Target Ranging: Detects up to three targets and provides near/far target indication, enabling more effective ranging in complex scenes.
Built-In Self-Test: Monitors APD temperature, high-voltage value, internal voltage and blind-zone value to support system diagnostics and maintenance.
Standby Wake-Up Function: Supports standby wake-up operation for more flexible system-level power management.
Rugged OEM Integration: The module supports RS422 communication, DC12 V power input and operation from -40°C to +70°C. Impact and vibration resistance meet MIL-STD-810G testing requirements.
| PROJECT | PERFORMANCE INDICATORS |
| Model | LRF1831 C |
| Laser Wavelength | 1535nm±0 .005μm |
| Eye-safety | Class Ⅰ |
| Divergence Angle | ≤1 .3 mrad |
| Laser Energy | ≥350 μJ |
| Main Functions of the Laser Rangefinder: | a)Single-shot and continuous ranging; b)Three-target ranging with near/far target indication; c)Self-test function (including current APD temperature,high-voltage value,internal voltage,and blind-zone value); d)Standby wake-up function. |
| Receiver Lens Diameter | Φ60 mm |
| Measuring Range | a)Under line-of-sight conditions,with visibility not less than 15 km and humidity not greater than 80%(at 30 °C),the ranging distance for Target 1 (5 m ×15 m)is ≥6,500 m. b)Under line-of-sight conditions,with visibility not less than 15 km and humidity not greater than 80%(at 30 °C),the ranging distance for a target with diffuse reflectance not less than 30%(20 m ×20 m)is ≥ 12,000 m. |
| 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 | ≤410g |
| Dimension (L×W×H) | 113×76×90mm |
| Operating Temperature | -40～+70 ℃ |
| Storage Temperature | -55～+75 ℃ |
| Impact Resistance | Meet the MIL-STD-810G testing standard |
| Vibration Resistance | Meet the MIL-STD-810G testing standard |
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 |