CLZ Optical Co., Ltd products

Borosilicate windows are optically polished to provide outstanding visual quality and optical clarity. Compared with fused silica, they have a lower (although still relatively high) melting temperature, which makes them simpler and therefore cheaper to process. Their thermal expansion coefficient is higher than for fused silica, but still relatively low, resulting in good thermal shock resistance. Compared with N-BK7 windows, they have a higher melting temperature, and good thermal shock resistance.