Chongqing Yu Ling Technology Co., Ltd. is a science and technology enterprise based in Chongqing, China, specializing in the R&D, production, sales, and service of optical testing instruments. Established with a research and development center in Xi'an 15 years ago, and an additional R&D center in Shenzhen, the company leverages the expertise of national research institutions. With 11 to 50 employees, Chongqing Yu Ling Technology operates a factory and a standardized laboratory equipped with advanced testing instruments. They are a contract manufacturer with a leading market share in China's traditional photoelectric detection instrument industry. Their extensive product portfolio includes various types of collimators such as Off-Axis Parabolic, Coaxial Reflective, Off-Axis Cassegrain, and Coaxial Cassegrain Collimators, Lidar Calibrators, Digital Dual-Axis Photoelectric Autocollimators, Optical Benches, Autocollimating Eyepieces, Field of View Meters, Diopter/Dynameters, Laser Collimators, Multi-Axis Calibrators, Goniometers, Angle Measuring Instruments, Parallelism Testers, Reticles, Solar Simulators, and Star Simulators. These products are designed for use across visible to far-infrared bands and find applications in aerospace, aviation, weapons, ships, and civil surveying and mapping industries. The company also offers customization of various photoelectric detection products.