Optical data storage : 5-7 March 1990, Vancouver, Canada
Optical thin films III : new developments ; 9-11 July 1990, San Diego, California
Optical information-processing systems and architectures II : 9-13 July 1990, San Diego, California
Sensor fusion II : human and machine strategies ; 6-9 November 1989, Philadelphia, Pennsylvania
Plastic optical fibers : 6 September 1991, Boston, Massachusetts
Optical data storage '91 : 25-27 February 1991, Colorado Springs, Colorado
Active and adaptive optical systems : 22-24 July 1991, San Diego, California
Optical enhancements to computing technology : 22-23 July 1991, San Diego, California