Site policy


The copyrights of and the contents on this site belong to Masunaga Optical Mfg. Co., Ltd. and the author of the work. The materials such as documents, photographs, and illustrations on this site are prohibited to use excluding the case approved by us, reproduction for private use and use within the limitation of quotation. In case there is an author of the site except us, use of the materials without permission is also prohibited.


Masunaga Optical takes no responsibility for any damages incurred from use of our information. Masunaga Optical may alter the information on this site without prior notice.