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, major products including industrial camera, scientific standard camera, high definition frame grabber card, industrial FA lenses, telecentric lens, machine vision lightings and image processing software. The Engineering Dept. of Contrastech has a lot of mature and successful machine vision solutions which based on automatic industrial inspection, high precision measuring and the module distinguishing.