2 or more lines or planes, extending in the same direction and everywhere equidistant from each other. Planes and lines are said to be parallel to each other if they never meet when projected out into infinity.

Used as a target readout in the R-1355-2.4ZB

A 5-sided prism that accepts a laser beam in one side and projects it at a precise 90

A type of laser alignment system that do NOT automatically rotate. To take measurements the user has to precisely move the laser beam to a target location.

A piece of silicon that detects the center of energy of the laser beam.