A laser measurement apparatus for carrying out measurement using a laser beam that is capable of performing various types of measurement with a simple structure is provided. Optical signal processing units 103, 104, 105 output laser beams .lamda.1, .lamda.2, .lamda.3 having different wavelengths via a common optical path A toward an object to be measured, and detect the laser beams being reflected by a corner cube 100 attached to the object to be measured. A control unit 102 controls motors 110, 111 so that the laser beams return to a predetermined position of a optical position sensing device 117 of an optical signal processing unit 103, according to which the direction of a reflecting mirror 112 is controlled so that the laser beams follow the object. The control unit 102 computes the distance to the object, or the shape, position, speed etc. of the object based on signals detected at the optical signal processing units 104, 105.

A weapon aiming system may utilize a laser diode and a reflective coating on an optical element to generate a red dot aim point for a shooter with a bright view to the target with minimal color distortion. The optical element may utilize an off-axis parabolic lens to reduce parallax to improve sighting accuracy. The weapon aiming system may utilize visible and infrared aim lasers that are coaligned to simplify boresighting of the weapon and to simplify target acquisition. The weapon aiming system may include a magnifier and a sight being disposed along a longitudinal rail of a weapon in a position with the close quarter combat sight being disposed between the magnifier and the weapon muzzle.