OptoSigma is wholly owned by Sigma Koki (SK) which has been established since 1977. We are a global supplier of quality Laser Components and Application Systems with 3 manufacturing plants in Japan and 1 in Shanghai.

Our Laser Components (Optics, Opto-mechanics and Motion Control) are built from the superior manufacturing technique and vast experience of laser applications. Our wide range of Application Systems has been offered to R&D and applications of measurement, inspection, evaluation & analysis in semiconductor, FPD & other industries. OptoSigma has developed and expanded our state-of-the art facilities that consistently produces high-quality, high value-added products to support your current and future business growth.