Rectangular sapphire window piece

Uncoated sapphires have excellent surface hardness, and the transmittance ranges from ultraviolet to mid-infrared wavelengths. Sapphire can only be scratched by a few other substances. The uncoated substrate is chemically inert and insoluble in water, common acids or bases at temperatures up to approximately 1000°C.

Sapphire has high temperature resistance, good thermal conductivity, high hardness, infrared penetration and good chemical stability. Widely used in many fields of industry, national defense and scientific research (such as high-temperature infrared window, etc.).

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Product Details

Sapphire window piece basic features

The spectral range is 150-3500nm

High strength surface hardness

Scratch resistant, high temperature resistant

Chemical inertness, acid and alkali resistance

Hechen crystal provides sapphire window sheet coating service


Basic technical parameters material

Size tolerance +0.0/-0.2mm

Surface accuracy λ/4 @632.8nm

Finish 40 and 60

Edge < 0.25 mm x 45 °

Optical aperture >85%

High precision double-sided polishing

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