PS版製造における表面検査装置

抄録

Surface inspection for manufacturing a PS-Plate uses mainly two types of systems. The laser-beam scanning-type surface-inspection system is able to use safety light for the PS-Plate to choose wavelength. This system is in use for long as it can inspect plate defects as well. The other surface-inspection system is the CCD camera-type. Its performance has improved with CCD pixels and the increasing speed of central processing unit (CPU) nowadays. The inspection system has developed for new type PS-Plates; CTP (Computer to Plate) and the Environment-friendly Process-less plate. The systems employ new image-processing technology and equipment using polarization characteristics. This article gives an introduction of the constitution and mechanism of the surface-inspection equipment along with its features.