About us

CSOPT | Precision Infrared Optics Since 2005

Established in 2005, CSOPT (China Star Optics) has grown into a trusted name in precision optics. Our 2 000-m² facility brings design, R&D and manufacturing together under one roof, allowing us to respond quickly to custom orders. A team of PhD researchers and veteran infrared engineers turns complex ideas into dependable hardware for aerospace, security, medical imaging and factory automation.

Custom infrared lenses

Our cooled infrared-lens line is built for professionals who refuse to compromise on image clarity. A tight optical architecture keeps distortion low, while refined mechanics suppress cold reflections and hold the optical axis within ±3 pixels. The lens glides from wide-angle to high magnification, locks focus in a snap and stays sharp—no matter how the temperature swings.

Germanium window assemblies & germanium optics

Mid- and long-wave systems (3–12 µm) need tough front-end protection. That’s why we machine Germanium window assemblies to order, pairing high transmittance with the ruggedness required for field work. Whether you need custom coatings, edge profiles or ultrathin substrates, we build it. The same shop floor also produces bespoke germanium optics for thermal cameras, laser range-finders and precision sensors.

Quality from start to finish

Every component moves through an end-to-end quality workflow—interferometric testing, environmental cycling and final performance checks. Backed by ISO 9001 processes, our optics deliver the accuracy, stability and service life demanded by harsh-duty applications.