Vac Techniche sapphire viewports are offered in CF, ISO, and KF flange styles. The viewports comprise a high-quality optic with precise flatness, parallelism, scratch, and dig specifications. Single crystal sapphire windows have excellent optical, physical, and chemical properties.

The hardest of the oxide crystals, sapphire retains its high strength at high temperatures. Sapphire has a low coefficient of thermal expansion and, low fluorescence, good resistance to thermal shock and scratching, making this an excellent material for IR transmitting optics and robust applications.

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