Jiangsu Yunyi Optical has recently been granted a new utility model patent for "a testing device for photochromic lenses." To date, the company holds a total of 15 brand patents and 4 utility model patents, covering core achievements such as anti-fog photochromic lenses and evenly darkening photochromic lenses. The company plans to procure a spectral analyzer to further advance the development of customized tinted lenses across different light wavelengths.