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Zinc Sulfide Optical Window
Optical Material

Zinc Sulfide Optical Window

Supplier
Scysgx
Category
Optical Material
Origin
China

Zinc sulfide(ZnS) is a high-performance optical-window material from visible to long-wave IR, with 400nm–12μm transmission, excellent mechanical strength, and environmental stability. Applications include thermal imaging, medical IR optics, security detection, industrial thermometry, and research. Scysgx uses high-purity CVD single-crystal substrates, more than 260 precision-processing machines, and 65 specialist inspection instruments for closed-loop cutting, grinding, polishing, coating, and inspection. Round, square, and special-shaped windows span 1–1000mm with flatness up toλ/20. IR AR, DLC diamond-like carbon, and other specialist coatings provide precise, stable broadband IR windows.

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Overview

Zinc sulfide(ZnS) is a high-performance optical-window material from visible to long-wave IR, with 400nm–12μm transmission, excellent mechanical strength, and environmental stability. Applications include thermal imaging, medical IR optics, security detection, industrial thermometry, and research. Scysgx uses high-purity CVD single-crystal substrates, more than 260 precision-processing machines, and 65 specialist inspection instruments for closed-loop cutting, grinding, polishing, coating, and inspection. Round, square, and special-shaped windows span 1–1000mm with flatness up toλ/20. IR AR, DLC diamond-like carbon, and other specialist coatings provide precise, stable broadband IR windows.

Specifications

ParameterValue
Size Range [Commercial Grade Specifications]1–1000 mm
Thickness Range [Commercial Grade Specifications]0.15–300 mm
Dimensional Tolerance [Commercial Grade Specifications]±0.05mm
Parallelism [Commercial Grade Specifications]±1′
Flatness [Commercial Grade Specifications;@632.8nm]0.5λ
Surface Quality [Commercial Grade Specifications]60-40
Chamfer [Commercial Grade Specifications]0.2–0.5mm×45°
Applicable Wavelength Band [Commercial Grade Specifications]400nm–12000nm
Size Range [High-Precision Grade Specifications]1–1000 mm
Thickness Range [High-Precision Grade Specifications]0.15–300 mm
Dimensional Tolerance [High-Precision Grade Specifications]±0.01mm
Parallelism [High-Precision Grade Specifications]1″–30″
Flatness [High-Precision Grade Specifications;@632.8nm]λ/20
Surface Quality [High-Precision Grade Specifications]60-40
Chamfer [High-Precision Grade Specifications]0.2–0.5mm×45°
Applicable Wavelength Band [High-Precision Grade Specifications]400nm–12000nm

Applications

Infrared thermal imaging: security cameras, vehicle night vision, industrial thermometry and outdoor night-vision lenses. Medical: infrared diagnosis, thermal screening and noninvasive detection windows. Industrial monitoring: infrared spectroscopy, high-temperature monitoring and oil/gas exploration windows. Lasers: mid-infrared protective windows and optical-path protection. Research/aviation: infrared microscopy, laboratory optics and airborne detection.

Key Features

Broadband high transmission: stable, uniform visible-to-longwave-IR transmission over 400nm–12000nm (0.4–12μm). Strong environmental adaptability: chemically inert, humidity/dust resistant for harsh outdoor/industrial conditions. Ultraprecision planar fabrication: high-precision flatness λ/20, parallelism down to 1″, surface quality 60-40. Circular, square and irregular customization over 1–1000mm. Broadband coatings: infrared AR, DLC and broadband AR. Commercial/general and high-precision medical/research grades. IV. Material advantages. Coverage 0.4μm (visible)–12μm (longwave IR), excellent 8–12μm transmission. Uniform index, low IR scattering/high contrast for thermal imaging. Thermal expansion coefficient 7.6, softening temperature 1525℃, strong stability without significant deformation. Knoop hardness 120, reliable strength, impact/wear resistance and long life. Insoluble in water, acid/alkali/humidity resistant for stable long-term complex-environment operation. V. Customization. Circular/square/rectangular/irregular shapes with steps, slots, holes or counterbores. Diameter/side length 1–1000mm, thickness 0.15–300mm, custom tolerances. Chamfering, edge grinding, ultraclean polishing/clean washing. Infrared AR, DLC, broadband AR and high-laser-damage-threshold coatings. VI. Coatings. Mid-IR AR: dedicated 3–5μm, 8–12μm and 2–14μm. Broadband AR: full-band 0.4–12μm for visible/IR dual modes. DLC improves contamination/scratch resistance and life. High-laser-damage-threshold coatings for high-power mid-IR. VIII. Yasi Optical advantages. In-house cutting → milling/grinding → polishing → coating → inspection with traceability. ZYGO, precision parallelism and optical dimensional testers. Batch 1–1000mm large-aperture zinc sulfide windows. One-stop shape/dimension/coating customization with optical-path support. High-reliability medical/industrial compatibility supports medical-infrared compliance. IX. Quality. All zinc sulfide windows undergo ZYGO flatness, precision parallelism, optical dimensional, infrared-transmission and surface-quality tests for 100% compliance. Automated ultrasonic ultraclean washing and vacuum moisture-proof packaging ensure transport/long-term stability.

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Supplier Information

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Scysgx
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Sichuan Yasi Optics is a source factory focusing on the R&D and manufacturing of optical components, which has rapidly emerged as a benchmark enterprise in the industry that combines innovation and quality. The company's core business focuses on the customized production of various optical components such as optical prisms, optical lenses, optical windows, laser lenses, etc. The products are widely suitable for application needs in multiple industries including medical, manufacturing, and scientific research. In terms of material selection, we support diverse substrates such as NBK7, quartz, sapphire, germanium, molybdenum, copper, zinc sulfide, fluoride, gallium arsenide, etc., to meet performance requirements in different scenarios. Relying on more than 260 processing equipment and 13 professional testing equipment, we have built a complete processing chain from cutting, grinding, polishing, coating to inspection and delivery. We can not only achieve rapid delivery of small and large batch products, but also precisely meet the personalized production needs of different customers.

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