大尺寸光学玻璃毛坯常作为大型光学仪器的主反射镜。保护镜等大口径光学元件的材料。这些光学元件加工精度要求都很高,因而对玻璃的退火质量即内应力消除程度要求也很高。但在过去的检验工作中多忽视了自重应力的影响。国内绝大多数的检验装置或仪器都是 Large-size optical glass blank is often used as the main reflector for large-scale optical instruments. Protective glasses and other large-diameter optical components of the material. The precision of these optical components processing requirements are high, so the quality of the glass annealing that is demanding the extent of stress relief. However, in the past, inspection work neglected the influence of self-weight stress. The vast majority of domestic test equipment or equipment are