Swans(スワンズ,Suwanzu?) is the brandname of the Japanese eyewear manufacturer Yamamoto Kogaku Co., Ltd.(山本光学株式会社,Yamamoto Kōgaku kabushiki-gaisha?) located in Osaka, Japan. Founded in 1911, the company produces and sells optical lenses, sunglasses, goggles, as well as safety glasses. The sports eyewear brand Swans includes sunglasses, ski and snowboard goggles, swimming goggles, as well as helmets.