China TianYing TY-LR81 is simultaneous a mid-high energy laser designator and 13km laser rangefinder for 10m² vehicle, find building beyond 26km and even up to 50km, matched to high altitude and long range optronic systems, provides 2m accuracy and 20Hz rate performance to moving targets in compact unit that weighs 3500 g.

The laser designator rangefinder features fully military details, excellent coding compatibility, excellent coding scalability, excellent laser sensitivity, the lightest weight and the smallest size, effective on platforms from man-portability, land vehicles, ships to aero planes.

The LDR offers separate long duration measuring rate mode for tracking surveillance reconnaissance; communication with the LDR is established by means of a RS422 interface which forms the operational, status and maintenance interface with the LDR.

TY-LR81 Laser Designator Rangefinder Module Features:
1). Diode-Pumped ND:YAG ≥ 60 mJ energy;

2) TE-cooled avalanche photodiode detector

3) ≤ 300 μrad beam divergence.

4). Pre-stored coding, internally coded with powerful expansion capacity;

5). Typically designator tank ≥ 7km of 20 Hz and ranging tank 13km in 15km visibility - max 50km;

6). Accuracy  ≤  +/-2m for target ranges;

7). Good environmental adaptability;

8). Mature advanced technology and compact design, typical weight 3500 g with house.

Application:
1). UAV electro-optical platform;

2). Man-portable electro-optical platform;

3). Other electro-optical platforms;

4). Laser guidance;

5). Laser decoy.

TY-LR81 Laser Designator Rangefinder Module mainly specification:

Question:
1, Why many 20km/30km/40km laser rangefinder can not measure tank 10km in standard 23.5km visibility?

Because their 20km/30km/40km is theory data or high reflection large target in ideal visibility condition, even reflection need beyond 80% and visibility need beyond 50km.

2, Why many NATO target 10% reflection 12km laser rangefinder can not measure tank 10km in standard 23.5km visibility?

Because their 10% reflection is not real performance data, 2.3m x 2.3m NATO target is not real tank, or their NATO target effective size is different; normal the 2.3m x 2.3m target real albedo is 50% or more.

About test land standard, normal big target typical 20km LRF with 25km visibility, then, normal this LRF can measure their 2.3m x 2.3m target about 15km or more, then, real 30% albedo 2.3m x 2.3m target is only about 9km ~ 12km.

Also, starting state and stable state measuring range is different too, such as 15mJ-25mJ LRF, starting state is 25mJ, typical stable state is only 15mJ, only many companies are only said starting state, for example, said single pulse laser energy is at least 25mJ.

3, Why many laser rangefinder do not show measurement rate details?

Because max rate and continuous rate technology demand is different, such as max 12.5Hz 10 sec to 60 sec, maybe then 5Hz is max 1 min to 3 min with cycle.

Also, when rate have more different, such as 1Hz-5Hz, 1Hz-10Hz, 1Hz-20Hz, 5Hz-25Hz etc, then their working distance have more different too.

About 1.5µm eye safe laser rangefinder, if 1Hz is 10km, then, normal 5Hz is only balance about 80%~ 85%, normal 10Hz is only balance about  70%~80%, when this LRF laser energy is very low, then attenuation speed will accelerate.

4, Why normal mid-long range high rate laser rangefinder do not use for Erbium-glass laser?

Because normal Erbium-glass laser energy is too low, high rate continuous measuring time is too short, especially at extreme operating temperatures.

In fact, if Erbium-glass laser want to meet demand, energy need at least 2mJ, normal need 5mJ to 8mJ.

Then, Erbium-glass is not competitive with OPO and Raman shifted.

5, Why many laser rangefinder price is very cheap?

Because performance is different, for example: one LRF is used for bad cable, messy interface, messy wiring etc, then the LRF cost can reduce, even reduce much, but no warranty on performance.

If used for same performance, then our price is very cheap. that is why many laser rangefinder do not show their real main performance data.