ZnSe Aspheric Lenses

Overview

ZnSe aspheric lens combines the benefits of zinc selenide material, known for its IR transparency and durability, with the advantages of aspheric geometry, which minimizes aberrations. These lenses are essential Optical Components in a variety of IR imaging and laser systems, offering superior performance and reliability in challenging environments.

Why This Design Matters

CVD Zinc Selenide (ZnSe) is used because ZnSe supports CO2 laser wavelengths, while aspheric surfaces help reduce spherical aberration in compact optical systems. For this product, the key decision is whether the aspheric ZnSe lens geometry, aperture, coating, and mounting conditions match the optical layout.

Technical Specifications

Parameter	Value
Material	ZnSe
Specification	Customized
Aspheric Turning Diameter	15–210 mm
Diameter Range	16–430 mm
Diameter Tolerance	0.05 mm
Center Thickness Tolerance	0.02 mm
Surface Accuracy	PV λ/10, λ/20
Surface Quality	40/20, 20/10
Surface Roughness	Ra ≤ 0.04 µm

Application Guidance

Use this product when the optical path requires CO2 laser focusing, compact IR imaging, and aberration-controlled beam paths. Engineers should confirm wavelength, beam diameter or field size, clear aperture, coating target, and mechanical envelope before final drawings are released.

• CO2 laser focusing
• compact IR imaging
• laser diode collimation
• bar code scanners
• beam shaping
• aberration-controlled optics
• laser processing systems

Engineering Notes and Inquiry

For custom production, send focal length, aperture, wavelength, coating target, and drawing tolerances. OPTOstokes-IROptical can review the drawing, confirm feasible specification ranges, and align the optical component with the downstream assembly.

Use the contact form or email [email protected] to request engineering review, coating options, or a quotation.