三井光機製作所 Company Profile

We are always striving to improve the precision and technology of our prisms more than ever before.

A new era has arrived where innovative optical technology promotes the development of various industries, and consequently, society and culture. The market utilizing optical technology, including optical communication systems that support today's information society, high-definition digital images such as optical disc media, surveying, and medical research, is expected to continue to grow significantly in the future. In light of this background, the precision and production capacity required for prisms are increasing daily. Mitsui Optical Co., Ltd., with a history and track record of 55 years since its establishment, received ISO 14001 certification in 2004 and ISO 9001 certification in 2006. As a Japanese development and manufacturing company that boasts "world-class leadership" in prism technology, we will continue to challenge ourselves in technological development to meet the thick trust placed in us and provide high-quality, high-precision optical components demanded by the new era.