Shandong Yuying Optical Instrument Co., Ltd. was established on July 1, 1992, with a registered capital of 100 million yuan and an area of 160 acres. Yuying is a high-tech enterprise specializing in the research and development, production, and sales of Fresnel lenses. Shandong Yuying is currently the world's largest Fresnel lens supply base, with a total area of 40000 square meters. The company attaches great importance to the cultivation of professional talents and R&D investment, with 50 years of technological accumulation. Product applications: smart furniture, security facilities, LCD projectors, photopolymerization 3D printers, LED lighting, stage lighting, solar photovoltaic heat collection, automotive HUD head up displays, magnifying glasses, etc