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1. 发明授权

US5626641A Method of manufacturing a glass blank used for optical glass elements 失效
标题翻译：制造用于光学玻璃元件的玻璃坯料的方法
公开(公告)号：US5626641A
公开(公告)日：1997-05-06
申请号：US376677
申请日：1995-01-23
申请人： Tadayoshi Yonemoto , Yoshiyuki Shimizu , Takashi Inoue , Toshihiko Muroi
发明人： Tadayoshi Yonemoto , Yoshiyuki Shimizu , Takashi Inoue , Toshihiko Muroi
IPC分类号： C03B7/12 , C03B11/08 , C03B19/02 , C03B7/00
CPC分类号： C03B11/08 , C03B11/084 , C03B11/086 , C03B19/02 , C03B7/12 , C03B2215/06 , C03B2215/07 , C03B2215/11 , C03B2215/12 , C03B2215/17 , Y02P40/57
摘要： In manufacturing a glass material used for a re-heat press method of manufacturing high-precision optical glass components including a lens, prism or the like, a glass material can be manufactured which has no defect inside of or on the surface of the glass, and without requiring a process of grinding and polishing the glass. The glass material is manufactured by dropping melted glass from the glass outlet of a glass melting furnace to a mold and cooling the dropped glass on the mold. The distance between the mold and the glass outlet is in a range which maintains the temperature of the stretched area of dropping glass--the area where the melted glass dropped on the mold is spontaneously separated by its own weight and surface tension at its softening temperature or above. The temperature of the glass around the stretched area is at least its softening temperature, and the glass around that area is instantaneously incorporated into the glass on the mold after separation. As a result, there is no difference in temperature over the entire glass, and no defect is generated inside and on the surface of the glass.
摘要翻译：在制造用于制造包括透镜，棱镜等的高精度光学玻璃组件的再热压制方法的玻璃材料中，可以制造玻璃材料，其在玻璃的表面内部或表面上没有缺陷，并且不需要研磨和抛光玻璃的工艺。通过将熔融玻璃从玻璃熔炉的玻璃出口滴加到模具中并将落下的玻璃冷却在模具上来制造玻璃材料。模具和玻璃出口之间的距离处于保持玻璃落下区域的温度的范围内 - 熔融玻璃落在模具上的区域通过其自身重量和其软化温度下的表面张力自发分离，或以上。拉伸区域周围的玻璃的温度至少为其软化温度，分离后将该区域周围的玻璃瞬间并入模具中的玻璃中。结果，在整个玻璃上的温度没有差别，并且在玻璃的表面内部和表面上都没有产生缺陷。

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