An optical system is provided which combines range-finding (distance
measurement), sighting (target acquisition) and scanning capabilities.
This single beam system uses a polarization selector and a retardation
plate to take advantage of the polarization properties of light from a
transmit source and of light reflected to a receiver. The system further
includes scanning optics for moving the optical beam of light in relation
to object in order gather information from the object. Methods for using
the system are also provided.
