#Light Solutions for Life If it is Light, it can be done. Bringing things into existence in our world with Light. Founded in Japan 40 years ago, the SIGMAKOKI Group faces new challenges head-on under the global brand of OptoSigma in order to bring light into the world. Our innovative solutions aim to realise our customers' similar missions of shining light on the world in diverse and unique ways, ultimately bettering Life and Living on Earth. With an appreciation for the past 40 years alongside the Takumi (Japanese Artisan Spirits) technique we have inherited and continued, we move forward and pursue this dream of bringing things into existence with Light.