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Product Overview
Zinc Selenide (ZnSe) windows are flat optical components with broad transmission across the visible and infrared regions, including the 10.6 μm CO2 laser wavelength.
They provide a protective optical interface while allowing light to pass through with minimal distortion.
Custom sizes, shapes, thicknesses, and anti-reflection coatings are available to meet specific system requirements.
Applications
- CO2 Laser Systems: Used as protective windows in laser cutting, engraving, and marking equipment to transmit 10.6 μm laser beams.
- Thermal Imaging & Night Vision: Used as infrared transmitting windows in thermal cameras and night vision systems to protect internal optics.
- Infrared Spectroscopy: Used in analytical instruments to transmit infrared light for material identification and chemical analysis.
- Industrial Temperature Monitoring: Used as protective windows in infrared temperature measurement systems for non-contact process monitoring.
- Infrared Sensing: Used in gas detection and environmental monitoring instruments to transmit infrared signals while isolating sensitive optical components from the surrounding environment.
Typical Specifications
| Parameter | Standard Grade | Precision Grade |
|---|---|---|
| Material | Zinc selenide | Zinc selenide |
| Dimensions | Ø3–300 mm or side length 3–300 mm | Ø3–300 mm or side length 3–300 mm |
| Diameter Tolerance | +0 / −0.10 mm | +0 / −0.02 mm |
| Length and Width Tolerance | ±0.10 mm | ±0.02 mm |
| Thickness Tolerance | ±0.10 mm | ±0.02 mm |
| Parallelism | ≤3′ | ≤2″ |
| Surface Figure | ≤λ/4 @ 632.8 nm | ≤λ/10 @ 632.8 nm |
| Surface Quality | 40–20 | 20–10 |
| Surface Roughness | ≤1.0 nm | ≤0.3 nm |
| Clear Aperture | ≥90% | ≥95% |
| Coating | AR / HR, etc., to customer requirements | AR / HR, etc., to customer requirements |
Other specifications, materials, and coatings are available upon request.