LASER ALIGNMENT SYSTEM FOR SMALL ARMS.

摘要

An electro-mechanical fixture automatically aligns a laser transmitter bolted to the stock of a rifle for subsequent use by a solder in war games. A rectangular hollow case is horizontally oriented and a hinged end cover is swung upwardly to reveal an LCD display and keypad of a control unit. A sliding rack is extended horizontally from a base unit inside the case. The barrel of the rifle is supported on a weapon rest mounted to be base unit and the trigger guard or clip receptacle is mounted in a vise on the rack. The vise has knobs for adjusting the azimuth and elevation of the weapon, thereby permitting the soldier to aim at an image of a target reticle. An optics unit is mounted on a forward portion of the base unit and includes a lens and a beam splitter which is transparent to infrared light from the laser transmitter but reflective to visible light. The illuminated target reticle is mounted inside the optics unit below the axis of the laser beam. The beam splitter is positioned forward of the lens and is angled at forty-five degrees to project the image of the target reticle through the lens at infinity. A position sensor detector in the optics unit receives the laser beam and generates an error signal representative of a displacement between a received location of the laser beam and the image of the target reticle. A circuit in the control unit is connected to an alignment head which is mechanically coupled with a rear end of the laser transmitter bolted to the rifle. The circuit causes the alignment head to repetitively trigger the laser in the laser transmitter. Utilizing the error signal, the circuit causes the alignment head to independently rotate wedge prisms in the laser transmitter to steer the laser beam in azimuth and elevation until the laser beam is substantially aligned with a boresight of the weapon.