Construction of an optical cellular logic image processor
Andrew Walker, Ian R. Redmond, Douglas J. McKnight, Robert G. A. Craig, Gerald S. Buller, Paul Meredith, Mohammad Reza Taghizadeh · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1993
An experimental optical digital parallel processor has been constructed. 256 channels are synchronously clocked round a three-gate loop containing a programmable logic gate, a fan- out and threshold stage, and a memory gate.