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专利名称：Porous glass, method of manufacturing the
same and optical element
发明人：Yoshinori Kotani,Zuyi Zhang,Akira
Sugiyama,Kenji Takashima,Naoyuki Koketsu
申请号：US13883039申请日：20111125公开号：US09003833B2公开日：20150414
专利附图：
摘要：This invention provides a porous glass with a varied porous structure that showsan excellent optical performance. A method of manufacturing a porous glass comprising:
a first step of forming a surface layer containing a boron compound and an alkali metalcompound as main ingredients on a matrix glass containing a silicon oxide, a boron oxideand an alkali metal oxide; a second step of heat treatment the matrix glass and thesurface layer for phase separation to form a phase-separated glass; and a third step ofacid treatment the phase-separated glass to form the porous glass having pores.
申请人：Yoshinori Kotani,Zuyi Zhang,Akira Sugiyama,Kenji Takashima,Naoyuki Koketsu
地址：Yokohama JP,Yokohama JP,Yokohama JP,Tokyo JP,Kawasaki JP
国籍：JP,JP,JP,JP,JP
代理机构：Fitzpatrick, Cella, Harper & Scinto
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