Chongqing Tongjian Optical Technology Co., Ltd.
A designer, developer and manufacturer of premium eyewear (OEM for multiple international brands), with customers in over 100 countries and regions across Asia, Europe, North America, the Middle East and beyond.

Keeping pace with trends, we have launched the latest AI smart glasses. Leveraging high-end supply chains including Huawei and Xiaomi, plus 20+ years of eyewear manufacturing expertise, our AI glasses are exclusively sold in several countries.

Our in-house brand LJGOOD eyewear is available at 1,000+ offline stores in 20 provinces and municipalities nationwide.

- Global Exclusive Licensed Eyewear Manufacturer for Lamborghini
- Recommended by CCTV Traceability Program
- Exclusive Strategic Partner for Changan Automobile, China National Nuclear Corporation, FAW Group, etc.
- Exclusive Eyewear Brand for China International Fashion Week
- Exclusive Eyewear Supplier for:
- Hangzhou 10,000-Person Hiking Event
- Fengjie Marathon
- Silk Road Gobi 108 km Challenge