Fiber optic cables; Fiber optic connectors; Fiber optics; Fibre optic couplings; Laser diodes; Optical semiconductor amplifiers; Photodiodes; Electrical signal attenuators; Electronic and optical communications instruments and components, namely, communication link testers for testing communication links; Electronic and optical communications instruments and components, namely, optical data links; Electronic and optical communications instruments and components, namely, optical receivers; Ele...

Interferometric refractometers

Eyeglass Lenses and Frames

Recorded computer software for production control and for generating production data in relation to the manufacture of optical lenses