The LDR20K1 combines 1064 nm laser ranging and 20 mJ target designation in a compact OEM module. This guide summarizes the specifications published for the current product and the integration details that should be confirmed for a UAV gimbal, EO/IR pod, or ground-based optical system.
Verified LDR20K1 configuration
| Parameter | Published specification |
|---|---|
| Operating wavelength | 1064 nm |
| Pulse energy | ≥ 20 mJ |
| Pulse width | 10 ns ± 5 ns |
| Beam divergence | ≤ 0.6 mrad |
| Ranging distance | 300 m to ≥ 3,000 m for a vehicle-sized target |
| Ranging accuracy | ± 1 m |
| Ranging modes | Single-shot, 1 Hz, and 5 Hz |
| Designation frequency | 20 Hz fundamental with user-defined coding support |
| Dimensions | ≤ 92 × 67 × 53 mm |
| Weight | ≤ 290 g |
| Electrical interface | 20-28 V DC and RS-422 |
Ranging and designation functions
The ranging channel supports single and continuous measurement. Published performance includes a detection rate of at least 98% under the stated target conditions. Actual range depends on target size and reflectivity, visibility, receiver configuration, pointing stability, background light, and system-level calibration.
The designation channel uses 20 Hz coded pulses. Integrators should verify the required coding format, trigger timing, pulse-energy stability, boresight alignment, and compatibility with the intended receiver or seeker before qualification.
OEM integration checklist
- Mechanical: confirm mounting datums, clear aperture, boresight adjustment, cable routing, and alignment retention.
- Electrical: verify the 20-28 V supply, peak current, grounding, RS-422 interface, external trigger, and fault reporting.
- Thermal: provide a defined heat path and validate performance from the published -40°C to +55°C operating range.
- Control: document ranging modes, range-gate settings, coding commands, status messages, and power-on self-test behavior.
- Qualification: test shock, vibration, temperature, electromagnetic compatibility, boresight retention, and repeatability in the completed platform.
Laser safety and system responsibility
High-peak-power 1064 nm radiation is invisible and is not inherently eye-safe. The finished system requires appropriate enclosures, interlocks, warning labels, operating procedures, protective equipment, and a formal laser-safety assessment. Module specifications do not establish the safety or compliance of the completed product.
Product information
See the current LDR20K1 20 mJ laser rangefinder and target designator product page for product images, interface information, and the latest published specifications. For datasheets, CAD files, qualification requirements, or OEM support, contact ERDI TECH LTD at sales@erdicn.com.