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​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
Specifications
Brand Name :
ZMSH
Model Number :
Sapphire Optical Window
Certification :
rohs
Place of Origin :
CHINA
MOQ :
25
Price :
by case
Payment Terms :
T/T
Delivery Time :
2-4weeks
Packaging Details :
package in 100-grade cleaning room
Material :
Single crystal (α-Al₂O₃)
Size :
222mm×74mm×4mm
Clear Aperture​​ :
>90%
Surface Roughness (Ra)​​ :
≤0.2 nm
Hardness :
Mohs hardness 9
Thermal Expansion Coefficient​​ :
8.8 × 10⁻⁶/°C
Elastic modulus :
435 GPa
Applications :
Semiconductor Manufacturing, ​​Optical Instruments​
Description

Sapphire Optical Window Overview​

​​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​

1.Ultra-High Hardness & Wear Resistance​​

  • Mohs hardness of ​​9​​, enabling resistance to scratches and abrasion in abrasive or mechanically demanding environments.

2.Broad Spectral Transmission​​

  • High transmittance across ​​UV (170–330 nm), visible (330–700 nm), and mid-IR (up to 5.5 μm)​​ wavelengths, with minimal temperature-dependent infrared transmission loss.

3.Extreme Thermal Stability​​

  • Withstands temperatures exceeding ​​1900°C​​ (melting point: 2030–2050°C) without structural degradation, ideal for high-temperature applications.

4.Chemical Inertness​​

  • Resists corrosion by water, most acids, and alkalis, suitable for harsh chemical environments.

5.Mechanical Robustness​​

  • 5× stronger than glass​​, capable of enduring high mechanical stress and impacts.

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

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.


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

Sapphire Optical Window Data

Parameter Name

Typical Value/Range

​​Material​​

Optical-grade Sapphire Single Crystal (α-Al₂O₃)

Size

222mm×74mm×4mm

​​Thickness Tolerance​​

±0.1 mm

​​Clear Aperture​​

>90%

​​Surface Roughness (Ra)​​

≤0.2 nm

​​Transmission Range​​

170–5500 nm

​​Thermal Expansion Coefficient​​

8.8 × 10⁻⁶/°C

​​Refractive Index​​

1.773

​Elastic modulus​​

435 GPa


More samples of Sapphire Optical Window

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

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

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

Sapphire Optical Window FAQ

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.


Tags: #​​Sapphire Optical Window, #Custom, #High Hardness, #High Hardness, #Infrared Windows​​, #Al₂O₃ Single Crystal, #Optical Instruments, #Double-Side Polished, #Sapphire Glass Windows Size 222mm×74mm×4mm, #Wear Resistance

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

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Product Detail
Brand Name :
ZMSH
Model Number :
Sapphire Optical Window
Certification :
rohs
Place of Origin :
CHINA
MOQ :
25
Price :
by case
Contact Supplier
video
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows
​​Custom Sapphire Optical Window 222mm×74mm×4mm Wear Resistance for Infrared windows

SHANGHAI FAMOUS TRADE CO.,LTD

Verified Supplier
8 Years
shanghai, shanghai
Since 2013
Business Type :
Manufacturer, Agent, Importer, Exporter, Trading Company
Main Products :
Gallium Nitride Wafer, Sapphire Wafer, SiC Substrate
Total Annual :
1000000-1500000
Certification Level :
Verified Supplier
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