Originally based in Chicago, by 1960 it had moved to Barrington, Illinois, when it was visited by presidential candidate John F. Kennedy.
Optical fiber | Tom Clancy's Ghost Recon: Future Soldier | Optical resolution | Optical disc authoring | National Optical Astronomy Observatory | Halo (optical phenomenon) | Optical fiber cable | Optical attenuator | Optical aberration | Wild Recon | Vavilov State Optical Institute | Tom Clancy's Ghost Recon Advanced Warfighter 2 | Tom Clancy's Ghost Recon 2 | Tom Clancy's Ghost Recon | SEAL Recon Rifle | RC Optical Systems | Optical telescope | optical telescope | Optical space | optical mouse | Optical fiber connector | optical fiber | Optical disc drive | Optical disc | optical disc | Optical dating | Optical coating | Okaya Optical | Magneto-optical trap | Large Optical Test and Integration Site |