Kunming Yuanjie Optical Instrument Co., Ltd. was established in 2010 and is located in Kunming, Yunnan, China. At the beginning of its establishment, it opened a flagship store in Tmall Mall, a subsidiary of Alibaba Group. It mainly operates the company's own sports optical brand, YOJOY. The products include binoculars, monoculars, military binoculars, spotting scopes, Long-range Observation Binocular, Long-range Observation Binoculars paid for by scanning a qr code.Since its inception, the brand has earned high praise from its customers for its excellent optical quality and stable physical properties. Currently.Our company has set up its own factory, can undertake any brand of mold development, optical design, packaging design, finished product processing business, Many products are exported to Europe and the United States and other countries. The optical design of some products has been researched and developed by the Yunnan Astronomical Observatory of the Chinese Academy of Sciences, and we have provided suggestions for the optical glass manufacturing for the observatory. Welcome customers to contact us.