(under the class definition) Subject matter where two objects or an object and a light beam are laterally aligned by displacing the objects along an axis essentially normal to the line connecting them or displacing the object and light beam along an axis essentially normal to the light beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138+, where the alignment involves rotation about an axis.
373, where the amount of displacement is measured.
SEE OR SEARCH CLASS
250, Radiant Energy,
200+, for such systems involving photocells and an optical system and with control of the optical system by the photocells.
