In 1930, Carton Optical Industries, LTD., were founded as a wholesaler of spectacle frames in Tokyo, Japan, and then, in 1951 they began importing and exporting various kinds of optical goods as a trading company. In 1964 their factory was established to telescopes, magnifiers and ophthalmic instruments under a registered Carton brand. In 1988 our 100% capitalized factory, Carton Optical (Siam) Co., Ltd. It was established in Pathumthani, Thailand to manufacture microscopes, etc., and in December 1999 Carton Optical (Siam) Co., Ltd. Was approved to be accordance with ISO 9002 in March 2001 and ISO 9001 in March 2001 and ISO 14001 in October 2004 to secure strict control of quality.

Main Production:
1- Stereo Microscopes
2- Binoculars
3- Magnifiers
4- Telescopes
5- Compasses