
Corporate Philosophy
Since its founding more than half a century ago, Otsuka Optical Co., Ltd. has made it its mission to develop and popularize binoculars as a manufacturer, and has played a part in the development of the industry as a technological pioneer. Based on its management philosophy since its founding, “to be a company that is useful to society,” Otsuka Optical is deeply aware of and actively works to protect the global environment, which is an important issue shared by all of humanity, and strives to be an environmentally friendly company.

Company Policy
- We develop products that meet environmental needs and provide environmentally friendly products.
- We aim to supply environmentally friendly products by using raw materials that do not contain harmful substances.
- We prevent and promote the reduction of waste generation. We promote the recycling of industrial and general waste through separate collection.
- We strive to prevent global warming by reducing the amount of public energy used.
- We set environmental objectives and goals, review them regularly, and strive to continuously improve and prevent pollution.
- We inform all our employees of our environmental policy, promote environmental awareness, and support employees in carrying out environmental conservation activities responsibly.
HISTORY
November 1956 | Otsuka Optical Manufacturing founded in Itabashi-ku. |
October 1959 | Certified as a Ministry of International Trade and Industry designated registered factory. |
October 1964 | Our binoculars were adopted for the 18th Tokyo Olympics, and we received a letter of appreciation. |
June 1965 | Awarded a certificate of recognition as a company that contributed to exports in 1965. |
March 1971 | Our new products were awarded subsidies by the Tokyo Metropolitan Government as superior export products. |
February 1972 | Our binoculars were adopted for the 11th Sapporo Winter Olympics, and we received a letter of appreciation. |
January 1978 | Head office relocated to Kitamachi, Nerima-ku, and a full-scale mass production system was established. |
April 1982 | Received the Award of Excellence (Excellent Product Award) from Sears, Roebuck and Company, USA, for the 15th time, following on from 1980 and 1981. |
December 1998 | Started OEM supply of compact zoom binoculars to major camera manufacturers. |
November 2002 | Started production of compact zoom binoculars in China (Nanyang, Henan Province). |
February 2005 | Head office moved to Arajuku-machi, Kawagoe-shi. |
April 2007 | Opened directly managed factory in Shenzhen, Guangdong Province, China. |
February 2009 | Developed high-performance spotting scope using ED lenses. |
April 2010 | Started OEM supply of small roof binoculars to major camera manufacturers. |
October 2010 | Re-expanded the Chinese factory and established a mass production system. |
February 2012 | Strengthened supply of small binoculars OEM products and expanded domestic sales. |
May 2012 | Developed high-performance binoculars with ED lenses and entered the luxury goods market in earnest. |
August 2012 | Opened second Chinese factory in Nanyang, Henan Province, China. |
March 2013 | Started OEM supply of high-performance waterproof binoculars. |
September 2019 | Our company has taken over the business of Katsuma Optics(GLORY binoculars). |
OVERVIEW
会社概要_ENGLISH
Company name | OTSUKA OPTICAL CO., LTD. |
Address | 5-15-3 Arajukumachi, Kawagoe City, Saitama, 350-1124 JAPAN |
Tel | +81-49-240-6177 |
Fax | +81-49-246-7511 |
otsukaopt@otsukaopt.co.jp | |
URL | www.otsukaopt.co.jp |
Established | November 9, 1956 |
Capital | 50 million yen |
Fiscal month | August |
Trademark | Dia Stone GLORY |
Business Type | ① Design and manufacture of binoculars ② Design of optical lenses ③ Manufacture and sale of optical equipment ④ Import and export of optical equipment and parts |
Banks | Risona Bank Tokiwadai Branch Kiraboshi Bank Ikebukuro Branch Sumitomo Mitsui Banking Corporation Ikebukuro Branch |
Main business | Overseas (approx. 30 companies): USA, EU countries, Middle East (Saudi Arabia, UAE, etc.), Southeast Asia (several countries) Domestic (approx. 10 companies): Major camera manufacturers, others |
![]() | Our company is a member of the Japan Telescope Manufacturers Association. https://www.jtmas.jp/ |
CONTACT
OTSUKA OPTICAL CO., LTD. 

OTSUKA OPTICAL CO., LTD. 
