CO2 laser ZnSe lenses
Zinc Selenide (ZnSe) Windows are ideal for a wide variety of infrared applications including thermal imaging, FLIR, and medical systems. This chemically vapor deposited material has wide usage in high power CO2 laser systems because of its low absorption coefficient and high resistance to thermal shock. Zinc Selenide (ZnSe) is a relatively soft material that scratches easily and it is not recommended in harsh environments because it's Knoop Hardness is only 120. When handling, apply uniform pressure and wear Latex finger cots or gloves to prevent contamination.
Material | Zinc Selenide(ZnSe) |
Diameter Tolerance | +0.0/-0.1mm |
Thickness Tolerance | ±0.05mm |
Surface Quality | 20-10~60-40 |
Clear Aperture | >90% |
Chamfer | <0.2×45° |
Coating:AR | AR@200-2000nm |

There are more than 50 high-performance machines and hundreds of experienced employees in our factory. In addition to the cold working of optical lenses, we also provide lens design, coating, assembly services. Our annual production capacity for general lenses and components is about 30 million pieces.


Our technical team is capable of performing various types of coating processes to meet different need, including anti-reflective coatings, high-reflective coatings, long-pass coatings, short-pass coatings, handpass coatings, anti-laser coatings, waterproof coatings, metal coatings, and conductive coatings.
Product quality always comes first. We have a complete quality control system which can guarantee the precision of our products. Our testing instruments include spectrophotometer, goniometer, sphericity interferometers, laser interferometer and ZYGO profilometer etc. Before delivery, we will check the products one by one to see if they are qualified.





