DEXERIALS

Optical semiconductors; optical communication machines and apparatus; optical sensors; optical sensor modules; semi-conductor devices; semi-conductor elements; integrated circuits; light-emitting diodes [LED]; semiconductor testing apparatus; semi-conductor memory devices; photodiodes; photosensors; telecommunication machines and apparatus; filters for optical devices; optical lenses; optical machines and apparatus; semiconductor wafers; wafers for integrated circuits; computer programs; optical measuring or testing machines and instruments; measuring or testing machines and instruments.