It can realize the use that the optical lens component miniaturized, high-effect energy conversion of the component and making use of other tiny light beam to do the handling.

These could store programs and process information by means of light - pulses from tiny lasers - rather than electrons.

This paper introduces the light intensity data collection system of a microprocessor set, with a Z-80 microprocessor as its main unit, in the radius measurement of laser microbeams.