1991, Start from the Raw Material of Quartz Glass Tube for Infrared Heating Lamp
　　1995，Start the cooperation with Philips, GE and etc.
　　2010, Start to apply for UHI Trade Mark, and get the promotion all over the world, it is famous in the following MKTs, Germany, France, Italy, US and etc.
　　2013, Establish Linyi Lanjing Optoelectronics Technology Co., LTD.