​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows

​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows

Blue Sapphire Optical Windows are primarily fabricated from ​​optical-grade sapphire (α-Al₂O₃ single crystal)​​. Here, "sapphire" refers not to natural gemstones but to high-purity, single-crystal aluminum oxide (Al₂O₃). Renowned for its ​​exceptional hardness (Mohs hardness of 9, second only to diamond)​​, outstanding wear resistance, ​​thermal stability (melting point ~2030–2050°C)​​, chemical inertness, and ​​broad spectral transmission (0.2 μm–5.5 μm)​​, sapphire is an indispensable material for extreme-environment optical applications.

A "window" typically refers to a flat, transparent plate that protects sensitive optical systems (e.g., sensors, lasers, detectors) from environmental hazards such as dust, scratches, chemical corrosion, or high-temperature/high-pressure conditions while maintaining superior optical transmission.

Sapphire Optical Window Features​

Sapphire Optical Window Applications​

1. Semiconductor Manufacturing​​

• High-temperature furnace windows, observation ports requiring chemical resistance and thermal stability.

2. ​​Optical Instruments​​

• IR/UV windows, laser protective windows, spectrometer apertures, barcode scanner optics.

3. Industrial Sensing​​

• High-pressure reactor viewports, flowmeter measurement windows, sensor protective covers.

4.Scientific Research & Defense​​

• High-voltage chamber optics, synchrotron beamlines, aerospace FLIR systems.

5.Consumer Electronics​​

• Watch crystals, smartphone camera protective lenses.

Sapphire Optical Window Data

More samples of Sapphire Optical Window

*We accept customized one, please feel free to contact us about your requirements.

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1. Q: Where are sapphire optical windows commonly used?​​

​​    A:​​ Sapphire optical windows are widely used in ​​high-temperature environments​​ (e.g., industrial furnaces), ​​laser systems​​, ​​defense equipment​​ (FLIR systems), and ​​aerospace instrumentation​​ due to their extreme durability and thermal stability.

2. Q: What makes sapphire windows better than glass?​​

​​    A:​​ Sapphire offers ​​superior hardness (Mohs 9)​​, ​​chemical inertness​​, ​​thermal resistance up to 2030°C​​, and ​​broad transmission (UV to mid-IR)​​, making it ideal for harsh applications where glass would degrade.

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