Optical windows are critical transparent components in optical systems, featuring a flat parallel-plate design optimized for light transmission within specific wavelength ranges while minimizing reflection and absorption. They shield systems from environmental factors and provide sealing functionality. Optical component supplier Eata Ray offers high-performance optical windows covering the full spectrum, crafted from materials such as fused silica, sapphire, and fluoride crystals. Our optical window products support custom sizing from miniature to large dimensions and provide integrated sealing solutions through our mechanical design team.
The selection of materials for optical windows requires a comprehensive consideration of factors such as light transmission range, mechanical strength, thermal stability, chemical compatibility, and cost.
| Material | Transmission Range | Hardness (Mohs) | Thermal Conductivity (W/m·K) | Damage Threshold (J/cm² @1064nm, 10ns) | Typical Applications |
| Sapphire | 180nm–5.5μm | 9 | 33 | >20 |
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| BariumFluoride (BaF₂) | 130nm–13μm | 3 | 11.6 | ~5 |
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| CalciumFluoride (CaF₂) | 130nm–10μm | 4 | 9.7 | ~8 |
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| ZincSelenide (ZnSe) | 600nm–20μm | 3.5 | 18 | ~2 |
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| Silicon(Si) | 1.2μm–15μm | 7 | 149 | >10 |
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| UVFused-quartz | 180nm–2.5μm | 5.5 | 1.4 | ~5 |
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| MultispectralZnS | 800nm–12μm | 3 | 27 | ~3 |
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Eata Ray provides a wide array of high-performance optical windows with tailored specs like wavelength range and durability, meeting demands from laser systems to consumer electronics. We offer full-service solutions, from custom design to mass production, helping clients gain a competitive edge in optoelectronics.
Please click on the filter box below to quickly locate the optical windows you need.
Sapphire Window
Barium Fluoride (BaF₂) Window
Calcium Fluoride (CaF₂) Window
Zinc Selenide (ZnSe) Window
Silicon Window
UV Fused‑quartz Window
Multispectral ZnS Window
Laser Window
Sapphire windows offer exceptional hardness, chemical resistance, and wide spectral transmission from UV to mid-IR. They are ideal for harsh environments, high-pressure applications, and laser systems, providing durable, scratch-resistant, and optically clear performance for demanding optical setups.
Barium Fluoride (BaF₂) windows transmit from UV to far-infrared wavelengths, making them suitable for spectroscopy, thermal imaging, and high-power laser applications. Their low refractive index and good mechanical stability enable precise optical performance in both laboratory and industrial environments.
CaF₂ windows provide excellent UV and IR transmission with low dispersion and high thermal stability. They are widely used in spectroscopy, laser systems, and optical instruments where minimal absorption, low birefringence, and high optical clarity are essential.
ZnSe windows excel in the mid-infrared range, offering high transmission, low absorption, and durability under high-power CO₂ lasers. They are commonly applied in laser optics, thermal imaging, and infrared spectroscopy systems requiring precision and long-term stability.
Silicon windows are ideal for infrared applications, particularly in the 1.2–7 µm range. They combine high thermal conductivity, mechanical strength, and chemical stability, making them suitable for laser optics, thermal imaging, and spectroscopy in industrial and scientific systems.
UV fused-quartz windows provide exceptional transparency in deep-UV and visible ranges, with high thermal and chemical resistance. They are perfect for laser systems, spectroscopy, and precision optics requiring minimal absorption, low thermal expansion, and long-term reliability.
Multispectral ZnS windows transmit across visible, near-, and mid-infrared wavelengths, supporting multispectral imaging and sensing. They offer high strength, durability, and low thermal expansion, making them suitable for advanced optical systems, including defense and industrial applications.
Laser windows are designed for high-power laser systems, providing precise optical clarity, minimal absorption, and resistance to thermal and mechanical stress. They ensure safe and efficient beam transmission while maintaining durability and long-term performance in demanding environments.
Eata Ray delivers bespoke optical window solutions, meticulously crafted to meet specific requirements for wavelengths, dimensions, thicknesses, coating options, and environmental resilience. Whether for high-energy laser systems, deep-UV applications, or multispectral imaging setups, we ensure precision manufacturing and stringent quality checks to guarantee every window aligns perfectly with your operational standards.
Eata Ray is committed to providing high-performance, precision-manufactured optical windows to meet the needs of various advanced applications. Whether standard or customized, we provide reliable assurance for your optical systems. Please feel free to contact us for detailed specifications or technical collaboration.
For Research or Industrial Raw Materials, Not For Personal Medical Use!
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