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Qingyan Changguang (Tianjin) Optoelectronic Technology Co., Ltd. is a high-tech company incubated from the Shuimu Kezhong Innovation Center of the Tianjin Research Institute for Advanced Equipment, Tsinghua University. It features precision optical thin films. The company has strong R&D, design, and manufacturing capabilities in optical thin films, equipped with three imported coating machines with direct and indirect monitoring, Agilent CARY5000 and CARY7000 spectrophotometers, and comprehensive testing instruments. Its main business is the R&D and mass production of high-power, high-damage-threshold laser optical components and complex narrow-band filters, all completed independently from process development to mass production. Leading professional technology and a strict quality control system ensure product quality, with unique capabilities to fully meet customer needs. Committed to creating high-quality, cost-effective, and fast-delivery high-end optical products, the company strives to become a leading and internationally advanced optoelectronic technology enterprise, looking forward to win-win cooperation and sustainable development.