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Sapphire Windows
Sapphire is a material possessing excellent thermal conductivity, superior hardness, outstanding wear resistance, exceptional high-temperature resistance, and strong corrosion resistance. As one of the hardest materials used in optical components, its transmission range covers the ultraviolet (UV) to mid-infrared (mid-IR) band (190nm - 4.5μm).
Our stock sapphire windows offers multiple standard sizes, with diameters ranging from 10mm to 50.8mm, and thickness options of 0.5mm, 1mm, or 2mm, to meet diverse application requirements.
Additionally, we provide anti-reflective (AR) coating services and custom fabrication of sapphire windows based on customer designs.
Why Is Sapphire Used for Optical Windows?
An optical window does not normally provide focusing power. Its main purpose is to protect an internal optical or electronic system while allowing light to pass through.
In many applications, the window may be exposed to:
Sand
Dust
High temperature
Pressure
Chemicals
Moisture
Mechanical impact
Repeated cleaning
Abrasive particles
Standard glass can become scratched, damaged, or distorted under these conditions.
Sapphire offers a much more durable alternative, making it suitable for demanding optical protection.
Specifications >
Custom Capabilities >
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Related Information >
| Material | Sapphire |
| Diameter Tolerance | +0.0/-0.2mm |
| Thickness Tolerance | ±0.1mm |
| Clear Aperture | 90% |
| Surface Quality | 60-40 |
| Surface Flatness | 2λ |
| Edge Finish | Fine Gound |
| Parallelism | ≤3 arcmin |
| Axis Orientation | Random |
Sapphire is a glass crystal with extremely high hardness. It is scratch-resistant, high-temperature-resistant, chemical-resistant, and has high mechanical strength, making it very suitable for use in harsh conditions.
Sapphire is transparent to translucent. It has a glassy luster, a refractive index of 1.76-1.77, a birefringence of up to 0.008, and a hardness of 9. It is a natural material with a hardness second only to diamond.
CLZ Optical Co., Ltd. has the following customized processing capabilities:
Diameter Range: 3mm-200mm
Center Thickness: 0.2mm-50mm
Sapphire Al2O3 is one of the hardest minerals and optical materials on earth. It is a material with a special crystal structure and its crystal constants are very close to those of diamond, which makes it extremely hard temperature resistant, and stable at high temperatures or in environments with strong acids and bases.
Due to its high optical transparency and excellent physicochemical properties, sapphire has been widely researched and applied in the fields of optical devices, laser technology, microelectronics, etc. in recent years. It has a Mohs hardness of 9. Lenses made from synthetic sapphire are usually very difficult to scratch, so they are extremely scratch-resistant. Although sapphire is blue, sapphire glass is highly transparent to light wavelengths between 150nm and 5500nm.
This range provides the material with a broad optical transmission band from ultraviolet to near-infrared. Sapphire can also be used in the wavelength range from UV to 5μm.
Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities
| Type No. | PDF Drawings | Materials | Diameter (mm) | Thickness (mm) | Unit Price (USD) | |
|---|---|---|---|---|---|---|
| WS-0100005-U | PDF > | Sapphire | 10.00 | 0.50 | $25.00 | |
| WS-0254020-U | PDF > | Sapphire | 25.00 | 2.00 | $59.00 | |
| WS-0254010-U | PDF > | Sapphire | 25.00 | 1.00 | $59.00 | |
| WS-0254005-U | PDF > | Sapphire | 25.00 | 0.50 | $59.00 | |
| WS-0500020-U | PDF > | Sapphire | 50.00 | 2.00 | $100.00 | |
| WS-0508010-U | PDF > | Sapphire | 50.00 | 1.00 | $100.00 | |
| WS-0250020-U | PDF > | Sapphire | 25.00 | 2.00 | $59.00 | |
| WS-0250010-U | PDF > | Sapphire | 25.00 | 1.00 | $59.00 | |
| WS-0250005-U | PDF > | Sapphire | 25.00 | 0.50 | $59.00 | |
| WS-0200020-U | PDF > | Sapphire | 20.00 | 2.00 | $55.00 | |
| WS-0200010-U | PDF > | Sapphire | 20.00 | 1.00 | $55.00 | |
| WS-0200005-U | PDF > | Sapphire | 20.00 | 0.50 | $55.00 | |
| WS-0127020-U | PDF > | Sapphire | 12.00 | 2.00 | $27.00 | |
| WS-0127005-U | PDF > | Sapphire | 12.00 | 0.50 | $27.00 | |
| WS-0125010-U | PDF > | Sapphire | 12.00 | 1.00 | $27.00 | |
| WS-0100010-U | PDF > | Sapphire | 10.00 | 1.00 | $25.00 |
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