Prototyping of an optomechanical apparatus for BioCD specimen image inspections

Abstract

An optical inspection apparatus was prototyped for examining BioCD samples, and an automatic focusing mechanism using an embedded bio-image feedback mechanism was built in to control the focusing lenses system as to obtain adequate images on the image sensing chip, where sharpness of the captured images are evaluated and compared for subsequent motor movements. Over the motor course motion intervals, piezoactuator minute adjustments are henceforth triggered in fine movements to obtain clear images of the designated layer within inspected BioCD samples. The prototype is featured in its Linux OS based application on an ARM platform, which can execute a variety of servo-motions, including fine motions through implementing piezo-actuations, once the assistances of processed bio images are employed.