Sapphire Windows

Sapphire Windows, offered by Kingwin Optics, are renowned for their reliable mechanical, thermal, and chemical robustness. With a broad optical transmission range from 150-5500nm and large dielectric constants, they excel as both optical and protective windows in applications requiring stringent conditions and extreme environments.

Specifications:

Window Shape	Flat circular, flat rectangular, wedge, step, tube, and other special shapes
Dimension Tolerance	+0.0/-0.2mm
Aperture	>90%
Parallelism	30 arcsec
Thickness Tolerance	+/-0.2mm
Flatness	custom
Surface Quality	Optional 80/50, 60/40, 40/20, 20/10, 10/5 S/D
Materials	Optical grade single crystal sapphire
Coating Options	Uncoated, Single Layer MgF2 AR Coating, and Other Custom Options

 

Features:

1.Unrivaled Hardness and Ruggedness:

• Sapphire has a Mohs Hardness of 9, making it the second hardest material after diamond.
• Extremely resistant to scratches and abrasions, ensuring clear optical apertures even under attack from sand/grit.
• Ideal for applications involving splattering abrasive particles, such as drilling viewport windows, protective laser processing windows, and gun sights.

2.Thin and High-Pressure Resistant:

• Due to firm internal covalent bonding, sapphire windows can be manufactured thinner without fracture compared to dielectric materials.
• Capable of withstanding high pressure, making them suitable for aviation and deepwater contexts.

3.High-Temperature Tolerance:

• Sapphire has a working temperature limit of up to 1600℃ and a melting point of 2000℃.
• High thermal conduction provides a unique advantage in handling high-temperature situations compared to other optical materials.
• Great options for high-temperature plasma chambers, combustion chambers, etc.

4.Solid Chemical Inertia:

• Sapphire exhibits chemical inertia to common acids/alkalines, with the exception of hot caustic salts.
• Outperforms other materials in coping with corrosive chemicals and erosive atmospheres.
• Suitable for applications in pharmaceuticals, medicines, and chemical facilities.

5.Broad Spectral Transmission:

• Sapphire windows offer a broad spectral transmission range of 150nm-5500nm.
• Compared to N-BK7 and UV Fused Silica, sapphire excels with better UV functions, broader IR transmission, and less IR absorption.
• Ideal for critical optical operations in multi-spectrum applications.

Applications:

1.Optical Applications:

• Sapphire windows are excellent for optical systems requiring high hardness, thermal stability, and chemical resistance.
• Suitable for multi-spectrum optical operations due to broad spectral transmission.

2.Protective Applications:

• Ideal for protective windows in laser processing, drilling viewport windows, and gun sights.
• Provides clear optical apertures and maintains lucid sights even under extreme conditions.

3.Extreme Environments:

• Suitable for aviation and deepwater contexts due to high-pressure resistance.
• Ideal for high-temperature environments such as plasma chambers and combustion chambers.

4.Chemical and Pharmaceutical Industries:

• Sapphire windows offer solid chemical inertia, making them suitable for applications in pharmaceuticals, medicines, and chemical facilities.

Kingwin Optics offers a diverse range of Sapphire Windows featuring exceptional mechanical, thermal, and chemical robustness. With broad optical transmission and high-precision manufacturing capabilities, our Sapphire Windows are ideal for various applications requiring stringent conditions and extreme environments. Experience optical excellence with Kingwin Optics’ Sapphire Windows.