Before he joined the college, he worked at the Chung Shan Institute of Science & Technology, Lungtan, Taoyuan for two years, and Pacific Opto-Electronics Corp. for one year, and University of Tamgang for three years. He is interested in the areas of interferometry, confocal metrology, design of electro-optical system, and signal processing. He has been the Award of the Best Engineering Paper (1998) and the principal investigator of several research projects of National Research Council in Taiwan.