Zinc Selenide Optical Window
Zinc Selenide Optical Windowes are precision optical lenses with a concave surface and a convex surface, designed to provide negative focal length while reducing spherical aberration compared with conventional negative lenses. Chenyu Optics manufactures zinc selenide optical windowes in BK7, fused silica and UV fused silica, uncoated or with UV AR, VIS AR and NIR AR coatings.
Zinc Selenide Optical Window Overview
Zinc Selenide Optical Windowes are precision optical lenses with a concave surface and a convex surface, designed to provide negative focal length while reducing spherical aberration compared with conventional negative lenses.
By optimizing the curvature combination, zinc selenide optical windowes provide controlled beam divergence and improved optical performance. They are widely used in laser systems, beam expansion assemblies, imaging systems and optical instruments requiring precise aberration control.
Chenyu Optics supports custom zinc selenide optical window manufacturing according to customer drawings, including custom diameter, focal length, surface accuracy and coating design for prototype and repeat production.
Key Advantages of Zinc Selenide Optical Window
Laser Beam Expansion & Aberration Correction
Negative meniscus lenses are widely used for beam divergence control with reduced aberration in laser beam expansion systems, imaging assemblies and precision optical instruments.
Typical Specifications of Zinc Selenide Optical Window
| Material Options | Zinc Selenide (ZnSe), Chemical Vapor Deposited |
|---|---|
| Optical Function | Infrared transmission / Optical protection |
| Focal Length | Customized |
| Transmission | High optical transmission |
| Surface Accuracy | λ/4 – λ/10 @ 633 nm |
| Surface Quality | 20-10 / 40-20 scratch-dig |
| Aberration Control | Reduced spherical aberration |
| Coating Options | Uncoated, MWIR AR, LWIR AR, custom infrared AR coating |
Window Geometry & Optical Principle
Why Choose Chenyu Optics for Zinc Selenide Optical Window
Chenyu Optics focuses on drawing-based precision lens manufacturing for laser, imaging and scientific optical systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard zinc selenide optical windowes.
Manufacturing Capability for Zinc Selenide Optical Window
Precision Grinding & Polishing
Precise curvature control on both optical surfaces to achieve optimized beam divergence and reduced spherical aberration.
Optical Coating
UV AR, VIS AR and NIR AR coating options for laser, imaging and scientific instrument applications.
Inspection & Packaging
Dimensional inspection, surface review, optical performance checking and protective packaging before shipment.
Custom Manufacturing Options for Zinc Selenide Optical Window
Dimensions & Focal Length
Custom diameter and focal length can be manufactured according to customer drawings, with standard or custom meniscus curvature design.
Surface & Optical Quality
Surface accuracy, surface quality and aberration control can be selected according to optical performance and system requirements.
Coating & Wavelength Design
Uncoated, UV AR, VIS AR, NIR AR and custom AR coatings can be specified for laser systems, imaging or broadband applications.
Window Shape Comparison
| Negative Meniscus | Double Concave | Plano Concave | Plano-Convex | |
|---|---|---|---|---|
| Focal Length | Negative | Negative | Negative | Positive |
| Surface Configuration | One concave, one convex surface | Two concave surfaces (symmetrical) | One flat, one concave surface | One flat, one convex surface |
| Aberration Behavior | Reduced spherical aberration | Higher spherical aberration at large apertures | Moderate spherical aberration | Moderate spherical aberration |
| Typical Applications | Precision beam divergence, aberration-sensitive systems | Laser beam expansion, divergence control | Laser beam expansion, collimation systems | Focusing systems, laser collimation |
Applications of Zinc Selenide Optical Window
Laser Beam Expansion Systems
Beam expansion with reduced aberration for laser optical systems.
Laser Beam Divergence Control
Precise negative focal length for beam divergence adjustment.
Optical Imaging Systems
Improved image quality through reduced spherical aberration.
Aberration Correction Assemblies
Meniscus curvature design for precision aberration control.
Optical Instruments
Precision negative lenses for optical instrument design.
Scientific Research Equipment
Precision lenses for research and laboratory optical setups.
Zinc Selenide Optical Window FAQ
What is a zinc selenide optical window used for?
A zinc selenide optical window is used to diverge light beams while reducing spherical aberration in optical systems.
What is the advantage of a zinc selenide optical window compared with a double concave lens?
The meniscus curvature design provides better aberration control and can improve beam quality in precision systems.
Can zinc selenide optical windowes be used in laser systems?
Yes. They are commonly used for beam expansion, divergence adjustment, and laser optical path control.
Can focal length and coatings be customized?
Yes. Chenyu Optics provides customized focal lengths, materials, dimensions, and AR coating options.
What information should I provide for a quotation?
Please provide diameter, focal length, surface accuracy, surface quality, coating requirement, quantity and drawing if available.
Where can I learn more about lens design?
Additional information on lens design can be found from Edmund Optics.
Related Products for Zinc Selenide Optical Window
Need Custom Zinc Selenide Optical Windowes?
Send us your drawing, focal length, diameter, coating requirements and quantity. Chenyu Optics will review the optical and mechanical specifications and provide a suitable zinc selenide optical window manufacturing suggestion.