As one high-tech enterprise Hangzhou Contrastech Co., Ltd. specializes in providing professional machine vision software, hardware and equipments. Contrastech has been researching and developing machine vision applications, and the major products include industrial camera, scientific standard camera, high definition frame grabber card, industrial FA lens, telecentric lens, machine vision lights and image processing software. The Engineering Dept. of Contrastech have lots of mature and successful machine vision solutions based on automatic industrial inspection, high precision measuring and module distinguishing.