(under subclass 63) Subject matter in which optical elements or paths are used to contact storage elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
215, for reading and writing a memory location with an optical beam.
234, for locating a memory location with an optical beam.
SEE OR SEARCH CLASS
250, Radiant Energy,
227, for prephotocell system which includes light conducting rods, subclass 551 for optical/electrical signal isolators, subclass 553 for solid-state light source with an array or matrix of photocells.
359, Optics: Systems (Including Communication) and Elements,
1+, for storage systems where there is a holos:graphic storage medium storing information signals absent any electrical circuitry.
385, Optical Waveguides, appropriate subclasses for light transmitting fibers, rods, or pipes.