Expert service since 1985

About Us


Valley Microscope is dedicated to providing fine scientific instruments & supplies for industry & education. We offer expert service, excellent value & strong after sales support to customers worldwide. We specialize in microscopes, magnifiers, electronic balances & many other scientific products. To contact us or to place an order please send your inquiries to:


In 1930, Carton Optical Industries, Ltd., was founded as a wholesaler of spectacle frames in Tokyo, Japan. Operation of a trading company began in 1951 importing and exporting various kinds of optical goods. In 1964 a 14,000 square meter factory was established in Saitama to manufacture microscopes, binoculars, telescopes, magnifiers and ophthalmic instruments under the registered Carton brand. In 1988 the now 100% capitalized factory, Carton Optical (Siam) Co., Ltd. was established in Pathumthani, Thailand to continue the manufacture of microscopes and other optical products. The factory employs 280 skilled workers. In December 1999 Carton Optical (Siam) Co., Ltd. was approved to be in accordance with ISO 9002, ISO 9001 and ISO 14001 to ensure strict quality control.


Carton Optical Canada, Inc. operating as Valley Microscope represents Carton Optical Industries Ltd. of Japan by wholesaling, distributing and supporting Carton brand products exclusively in Canada and non-exclusively throughout the world. It is our goal to provide customers with superior quality Carton products combined with excellent customer service and expert after sales support. Generous discounts are available for dealers interested in retailing our products.

This site is designed so the knowledgeable user can rapidly find the product they need. Please feel free to contact us for further information and assistance in choosing the product or service that will best suit your needs. We are here to help and our greatest reward is a satisfied customer!