Corning7980₍corning7979M有优良的光学性能和优异的透射率。其特点包括均匀性、低双折射和在DUV、UV、可见光和红外范 围内具有非常低的热膨胀系数。Corning7972是一种超低膨胀的二氧化钛硅酸盐玻璃，具有独特的特性，主要用在机床参考块，大 型天文望远镜和空间卫星应用的实心和轻型镜面坯料等。

       Corning 7980 and Corning 7979 have excellent optical properties and excellent transmittance, including uniformity, low birefringence and very low thermal expansion coefficient in DUV, UV, visible and infrared range. Corning 7972 is a kind of ultra-low expansion titanium dioxide silicate glass with unique characteristics It is mainly used in machine tool reference, solid and light mirror rough for large astronomical telescope and space satellite applications.

Corning7980透过率曲线及标准级1/4坨料

Corning7979透过率曲线及块料

Corning7972瞬时CTE、热膨胀曲线原料图片