Universal Plus Enterprises Ltd., also known as Unipolar, is a manufacturer and service company established in 2005. Based in Shenzhen, China, with a base in Huizhou and branch offices in Wenzhou and Nanjing, the company employs 11 to 50 people. They specialize in the production of 3D glasses and various optical systems, offering contract manufacturing services. Their product range includes Red/cyan 3D systems, Linear polarized 3D systems, Circular polarized 3D systems, Chromedepth 3D systems, Spectrum separated 3D systems, Special usage optical systems, and Common optical systems. Specific products include Circular Polarizing 3D Glass, 3D Paper Glasses, Circular Polarized Glasses, Polarized Projecting Glass Lenses, and various plastic 3D glasses. The company operates its own factory and is supported by a professional technology team and cooperation manufacturers.