Guotaivac is an ISO 9001& ISO14001 certified manufacturer of high-performance optical filters and thin-film coating systems. Registered in 2013, Guotaivac has rapidly grown from a small startup to a China-based leader in precision optical thin film systems. Guotaivac’s engineering team has been instrumental in achieving this growth by refining our advanced E-beam Deposition process, designing and building our coating equipment, and dedicating a large amount of resources to research and development. By so far, Guotaivac has obtained more than 25 patents regarding the optical coater, and a few of national and regional prizes.