Hand Held Laser Range Finder, LH80A/LH85A

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Is an invaluable instrument for infantry units in close support roles; providing tactical advantage by achieving pin point target sighting with an instant, accurate range readout. It is completely self-contained in a sturdy waterproof aluminum housing built the shape of a conventional binocular.
Its ergonomic configuration and simple, easily accessible controls allow unrestricted use even by operators with heavily gloved hands.The device can measure distances to targets repeatedly with an accuracy of plus or minus 5 meters over the entire range. Although designed originally for the infantry to determine observer and target positions, the versatile unit can have many other military roles with an optical performance comparable to that of most standard observation monocular. It can be used as a general surveillance instrument;
whilst the incorporation of mounting points on the underside of the range finder housing enables it to be interfaced readily with a variety of other equipment to extend its operational role.
The accurate range information provided by the range finder may be applied directly to existing field artillery computing systems. The training filter reduces the laser output energy by 90 percent to make it eye-safe at shorter distances. The hand held laser range finder functions with the same accuracy in extreme climatic environments as that attained under normal conditions.

Features:

  • Light weight, compact configuration, simple operation.
  • Remote range facility.
  • Multiple target selection.
  • Optional remote firing.
  • Battery charger enables you to charge batteries with external power supply.
  • Robust, modular construction.
  • Comprehensive two-year warranty.

Applications:

  • Infantry: Reconnaissance, Mortar fire control, Night ranging (when mounted on a night observation device).
     
  • Artillery: Target position(when used with a goniometer).
     
  • AFV: Navigation, simple fire control of main armament
     
  • Helicopter: Simple Air-Air/ Air-Ground ranging (When used on a stabilized mount).

Technical Specification: 
Transmitter: 
Laser type :                              Dye Q-switch Nd; YAG
Wave length :                           1.064   µm
Output energy :                         Nominally 12 mj      
Pulse width :                             Less than 10.4 nanosecond   
Beam divergence :                     1.5 mrad (90% energy)
Pulses per minute :                    12

Receiver:
Field of view :                            1.6 mrad 
Effective aperture :                     42 mm  
Type of detector :                      Silicon avalanche photo diode
Range accurancy :                      ±5m  
Range discrimination :                  30m
Range presentation :                   5 digit LED display (LH85A) - 
                                               4 digit LED display (LH80A)
Min/Mix range :                          150m /19995 m (LH85A) - 
                                               150m/ 9995 m (LH80A)
Min range setting :                      150 - 5000 m
Target selection :                        First/Last target selection
Communication Interface :            RS 232/RS 422 Protocol 
 
Optical data: 
Magnification (Nominal) :               X7          
Field of view :                             7°
Effective aperture :                     42 mm
Left hand eye piece :                   Fixed focus 
Right hand eye piece :                 ± 5 dioptre
Eye relief :                                 23 mm
Eye protection :                          Dichroic beamsplitter and 
                                               absorption glass on reticle
Interocular  Distance :                 65 mm

Power supply: 
Battery :                                    (8) "AA" size, 1.5V, 1.8Ah alkalin
                                                manganese or rechargeable
Battery charger :                         24 V 

Environmental: 
Operating temperature range :       -30° C to +55° C
 
Physical: 
Dimentions (L x W x H) :               180x190x85 mm Nominal
Weight (including battery) :           2.3 kg