High purity fused silica glasses are known throughout the industry for their consistent, repeatable performance.
    Fused Silica is offered in many different grades to support various product applications. Glass codes Corning 7980, 7979, and 8655 are high purity non-crystalline silica glasses with excellent optical qualities. Product characteristics include extraordinary low refractive index variations leading to state-of-the-art homogeneity values, lowest birefringence values, large size capabilities, exceptional transmittance from the deep ultraviolet through the infrared region, and an ultra-low thermal expansion coefficient; all of which are critical to our customers' demanding needs.

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