This course provides knowledge and techniques of optical design, testing and engineering that are widely used for dimensional measurements and inspection. The course is structured into lectures of fundamental optics principles and case studies. The topics covered include applied optics, lighting design, detection technology, imaging and sensing system. After these topic lectures, the participants will apply what they learn on a personalised case study of their choice. With this extra practice element, the participants are instilling skill and attitude as well as acquiring knowledge. This will enable participants to perform actual tasks in their workplace more effectively and efficiently.