Detailed LRF0610C Specifications
The technical material below is retained for this model only. Do not transfer a range, pulse, interface, mechanical or safety value from another 1535 nm product.
TECHNICAL SPECIFICATIONS
| Project | Performance Indicators |
| Model | LRF0610C |
| Laser Wavelength | 1535±5nm |
| Eye- safety | Class Ⅰ |
| Divergence Angle | ≤0.5 mrad |
| Laser Energy | ≥200 μJ |
| Launch Lens Diameter | Φ10 mm |
| Receiver Lens Diameter | Φ25 mm |
| Measuring Range
（Reflectance 30%; visibility ≥ 8km.） |
NATO objective(2.3m×2.3m) ≥6000m
Measuring human target(0.5m×1.7m) ≥1500m |
| Minimum Range | ≤15 m |
| Ranging Frequency | 0.5Hz ~10Hz |
| Number of multi-target detections | Up to 3 targets |
| Ranging Accuracy | ±2 m |
| Range Resolution | ≤0.1m |
| Precision Rate | ≥98% |
| False Alarm Rate | ≤1% |
| Pin-in-lead package model | Molex51021-0500 |
| Supply Voltage | DC12 V |
| Standby power consumption | ≤1 mW |
| Average power consumption | ≤2.5 W @10 Hz |
| Peak Power Consumption | ≤7 W @12 V |
| Weight | ≤90g |
| Dimension (L×W×H) | 70mm×32mm×40mm |
| 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 |
OUTLINE DIMENSION(mm)
PIN INTERFACE
Selectable between TTL (Molex 51021-0500) / RS-422 (J30J)
1. Electrical connector model: Molex51021-0500. The detailed definition of the electrical interface is as follows:
Table 1 Interface definition
|
External plug-in XS3 |
Model：Molex51021-0500 |
Remark |
|
1 |
TTL RX |
3.3V |
|
2 |
TTL TX |
3.3V |
|
3 |
CTRL |
3.3V-5V power on, 0V power off |
|
4 |
+12V |
Power supply+ |
|
5 |
GND |
Power supply- |
2. 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 |
Model-specific conditions and limits
Conditions are retained only when the source states them. They are not reconstructed from a nominal range or wavelength.
Read the controlled model table for its stated target, reflectance, visibility, temperature, rate and acceptance conditions. No additional condition has been inferred for this model.
Pulsed Time-of-Flight Ranging
A pulsed rangefinder estimates one-way distance from the round-trip delay of an accepted optical return. The equation is general engineering context, not an additional LRF0610C specification.
Pulse energy describes emitted energy per pulse; its effect cannot be separated from pulse width, divergence, optical losses, receiver threshold and the stated target/atmosphere conditions. It is not a substitute for a model-specific near- or long-range acceptance test.
Source-stated application context
Application labels indicate evaluation context, not automatic fitness for a finished system.
Product Description
LRF0610C 6km 1535nm Eye-Safe Multi-Pulse Laser Rangefinder Module with TTL / RS-422 Interface
The LRF0610C is a 1535nm Class I eye-safe multi-pulse laser rangefinder module designed for OEM integration in laser measurement systems, unmanned aerial systems (UAS), optical pods and boundary-monitoring sensors. It uses a 1535±5nm erbium-glass laser, multi-pulse time-of-flight processing and selectable TTL or RS-422 serial communication to deliver long-range performance in a compact, rugged package.
The module provides a NATO target (2.3m×2.3m) measuring range of ≥6000m at 30% reflectance and ≥8km visibility, and a human-size target (0.5m×1.7m) range of ≥1500m under the same conditions. Minimum range is ≤15m. With a divergence angle of ≤0.5mrad, laser energy ≥200µJ, and launch/receive apertures of Φ10mm and Φ25mm, the LRF0610C combines tight beam control with sufficient energy for reliable returns at 6km-class distances. Ranging accuracy is ±2m, range resolution ≤0.1m, precision rate ≥98% and false alarm rate ≤1%, with up to 3 targets reported per shot.
Ranging frequency is adjustable from 0.5Hz to 10Hz, so engineers can set slow, power-saving cycles or faster updates as needed. Single-shot and continuous-ranging modes are supported. In continuous mode, the main controller specifies the ranging period in milliseconds over the serial link, and the rangefinder returns distance and status for up to three targets according to the programmed cycle. This makes the LRF0610C suitable for everything from slow-scanning boundary-monitoring towers to faster UAS and gimbal applications.
Electrically, the module is powered from DC 12V, with ≤1mW standby power, ≤2.5W average power at 10Hz and ≤7W peak power at 12V. Two interface options are available:
-
A TTL (3.3V) interface on a Molex 51021-0500 5-pin connector (RX, TX, CTRL, +12V, GND)
-
An RS-422 differential interface on a J30J connector with separate RX+/RX− and TX+/TX− lines and redundant supply pins
This flexibility allows direct connection to low-voltage embedded controllers or longer cable runs using RS-422 in vehicle, mast or fixed-site installations.
Communication uses a simple master–slave protocol at 115200bps, 8 data bits, 1 start bit, 1 stop bit and no parity. Commands include standby, single ranging, continuous ranging (with programmable period), self-test, distance selection and near-limit setting, cumulative shot-count query, APD power on/off and serial-number query. Range data frames include up to three distances (0.1m resolution) along with a flag byte that reports main-wave and echo status, laser status, timeout, APD status and the presence of front and rear targets. These diagnostics help engineers quickly detect alignment issues, laser or APD problems and communication errors in the field.
Mechanically, the LRF0610C is housed in a 70mm × 32mm × 40mm package with a weight of ≤90g. It meets MIL-STD-810G impact and vibration requirements and operates from −40°C to +70°C, with storage from −55°C to +75°C. This combination of size, weight and environmental robustness allows the module to be mounted in UAS gimbals, compact optical pods, vehicle or border cameras and other outdoor equipment where both long-range performance and survivability are required.
For systems that require an external optical window, ERDI recommends using an AR coating optimized for 1525–1545nm with transmittance ≥99% and overall transmittance ≥97% after hydrophobic or hard coatings and mechanical integration. The optical window diameter, effective aperture, thickness (2–4mm), alignment (2–4° to the laser axis) and air gap should follow ERDI’s geometry and installation guidelines to minimize absorption and back-reflection while protecting the optics in real-world environments.
With its 6km NATO capability, multi-pulse TOF processing, selectable TTL/RS-422 interfaces and rugged mechanical design, the LRF0610C is well suited for long-range laser measurement, UAS payloads, optical and EO/IR pods, boundary and perimeter monitoring, industrial ranging systems and other applications where eye-safety, compactness and clean serial integration are critical.
Confirm short- and long-distance acceptance conditions
- Define minimum distance, target material, reflectance, size and incidence angle.
- Check receiver recovery, optical-axis overlap and strong-return handling at the intended near limit.
- Verify supply tolerance, peak current, grounding, interface levels, connector and timing with the ordered revision.
- For long-distance acceptance, state target geometry, visibility, weather, background and required detection probability.
- Test with the installed window, boresight, field of view, enclosure and thermal path rather than a bare module alone.
- Evaluate accessible emission, labels and failure conditions again for the finished laser product under IEC 60825-1.
Questions to resolve before design release
Does a stated maximum range apply to every target?
No. A stated range must be read with its target and environmental conditions. Dark, small, oblique, wet or partially obscured targets and degraded visibility can reduce received signal.
Does 1535 nm itself establish the laser classification?
No. Classification concerns accessible emission from the finished laser product. The module statement and final instrument assessment are distinct.
Can a long-range claim be used as the minimum range?
No. Minimum-distance behaviour depends on the particular transmit/receive geometry, receiver timing and strong-return management documented for the model and host system.
Product evidence and general technical context
The model PDF controls model claims. Public references below explain general engineering principles only.
- ERDI LRF0610C model PDFModel-specific technical evidence.
- System Design of a Pulsed Laser RangefinderOptical Engineering 30(3), 1991 - link budget, background, noise, detection and range error.
- The Short-Range, High-Accuracy Compact Pulsed Laser Ranging SystemSensors 22(6), 2146, 2022 - pulsed-ToF equation, timing error, reflectivity and temperature effects.
- Laser system range calculations and the Lambert W functionApplied Optics 48(4), B1-B7, 2009 - range performance versus atmospheric transmission, target and system parameters, and threshold SNR; its 1.06 µm example is general context, not ERDI model data.
- Monostatic all-fiber rangefinder systemApplied Optics 54(25), 7687-7694, 2015 - a measured case study of shared-aperture geometry and receiver-recovery loss; it does not establish an ERDI model limit.
- Light Transmission in Fog: The Influence of Wavelength on the Extinction CoefficientApplied Sciences 9(14), 2843, 2019 - measured and modeled wavelength-dependent fog attenuation.
- IEC 60825-1:2014Laser-product classification and accessible-emission requirements; final equipment requires system-level assessment.
- Practical application of pulsed “eye-safe” microchip laser to laser rangefindersOpto-Electronics Review 21(3), 2013 - a peer-reviewed 1535 nm rangefinder implementation; use for general transmitter/receiver and atmospheric-design context, not model specifications.