Complete range of ZnSe lenses designed specifically for CO₂ laser material processing at 10.6µm. Plano-convex, meniscus and negative elements for cutting, welding, engraving and medical laser systems.
| Material | CVD ZnSe / Cleartran ZnSe |
| Design Wavelength | 10.6 µm (also available for 9.3µm, 9.6µm) |
| Lens Types | Plano-Convex, Meniscus, Plano-Concave, Bi-Convex |
| Diameter Range | 12.7mm – 75mm (0.5" – 3") |
| Focal Length Range | 50mm – 500mm (2" – 20") |
| Surface Quality | Scratch-Dig 40-20 / 20-10 |
| AR Coating | R < 0.2% @ 10.6µm per surface |
| Absorption | < 0.005/cm (CVD) / < 0.003/cm (Cleartran) |
| Maximum Power | Up to 6kW+ with appropriate beam diameter |
| Clear Aperture | ≥ 90% |
Select the optimal optical material based on your wavelength, power, thermal environment and mechanical requirements.
Coatings are engineered around your specific wavelength and operating conditions.
We optimize specifications to match your system requirements — not over-specify. Tighter tolerances increase cost without always improving system performance. Our engineers will work with you to identify which parameters actually matter for your application and where standard tolerances are sufficient. Typical manufacturing capabilities:
Every component undergoes 100% inspection before shipment. We provide full inspection documentation including interferometer reports, spectral transmission curves, surface quality images and dimensional measurement data. Equipment capabilities:
Meniscus for high power: For CO2 laser powers above 2kW, meniscus lenses are preferred over plano-convex because they distribute absorption heat more symmetrically, reducing thermal stress and thermal lensing effects.
Focal length selection: Shorter focal lengths (50–127mm) produce smaller focal spots for precision cutting. Longer focal lengths (200–500mm) provide larger depth of focus for thick material cutting.
Protective gas: ZnSe optics in CO2 cutting systems are exposed to assist gases and process byproducts. Use protective windows upstream and regular inspection to maintain lens performance.
The following documentation is available upon request for qualified engineering projects:
CAD & dimensional specs per your requirements
Material properties, transmission curves & certificates
Spectrophotometric measurement data
Surface quality, flatness, centration & dimensional data
CoC with full traceability per project requirements
Application-specific specification documentation
Documentation availability depends on project scope and order quantity. Request details during RFQ.
When requesting a quote for this product, please specify the following parameters to help our engineering team provide an accurate quotation:
Not sure about specifications? Upload your drawing and our team will assist with engineering review.
Contact us for exact pricing based on your specifications.
Specification Parameters
Typical Specifications shown on this page are standard capabilities. Available Options include alternative materials and coatings. Custom Specifications are available per your drawing. Requirements beyond standard capability are marked Subject to Engineering Review.
Upload your drawing or describe your specification. Our engineering team will review and respond within 24 hours.
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