Optical Data Transmission
Hokuyo’s optical data transmission transfer data communication through infrared light beam, with high noise immunity and reliability. A whole system will include a pair of devices working as full-duplex, bidirectional-transmission and half-duplex parallel communication. Applications in the factory automation uses those devise to transfer data between station and distant station such as mobile transport unit, Autonomous vehicle, cranes, vacuum chambers etc.
For more details:
http://www.hokuyo-aut.jp/01transm/