Fukui, Japan is one of the three largest production regions for optical frames in the world, along with China and Italy. 97% of Japanese-made optical frames are manufactured in Fukui
Masunaga Optical premiered the production of eyeglasses in Fukui in 1905. The company founder Gozaemon Masunaga brought in skilled craftsmen from Osaka and Tokyo with the ambition of setting the optical industry solidly in place in Fukui.
He entered into the industry the hard way, and at first the eyeglasses manufactured in Fukui were regarded to be third-rate in the world. In order to raise the quality standards of the products, Gozaemon established a guild like system where full-fledged craftsmen could create their own businesses. Owing to this system, the number of eyeglass craftsmen increased gradually, and the optical industry spread all over Fukui.