Method for making glasses containing rare earth fluorides
    29.
    发明申请
    Method for making glasses containing rare earth fluorides 失效
    制造含稀土氟化物的玻璃的方法

    公开(公告)号:US20020017115A1

    公开(公告)日:2002-02-14

    申请号:US09915781

    申请日:2001-07-26

    Inventor: Huailiang Wei

    Abstract: A method that provides a new way to embed rare earth fluorides into silicate (or germania-doped silica) glasses by means of solution chemistry. Embedding rare earth fluorides into a silicate (or germania-doped silica) glass comprises the following steps. First, form a porous silicate core preform. Second, submerge the preform into an aqueous solution of rare earth ions. Third, remove the preform from the solution and wash the outside surfaces of the preform. Fourth, submerge the preform into an aqueous solution of a fluorinating agent to precipitate rare earth trifluorides from the solution and deposit in the pores or on the wall of the preform. This is followed by drying.

    Abstract translation: 一种通过溶液化学提供将稀土氟化物嵌入硅酸盐(或氧化锗掺杂二氧化硅)玻璃的新方法的方法。 将稀土氟化物嵌入硅酸盐(或掺锗二氧化硅)玻璃中包括以下步骤。 首先,形成多孔硅酸盐芯预制件。 第二,将预成型件浸入稀土离子的水溶液中。 第三,从溶液中取出预型件并洗涤预成型件的外表面。 第四,将预制件浸入氟化剂的水溶液中以从溶液中沉淀出稀土三氟化物,并沉积在预制件的孔或壁上。 然后干燥。

    Fabrication process of a gradient index type of optical element
    30.
    发明授权
    Fabrication process of a gradient index type of optical element 失效
    梯度折射率型光学元件的制作工艺

    公开(公告)号:US6032487A

    公开(公告)日:2000-03-07

    申请号:US324110

    申请日:1999-06-02

    Abstract: The invention provides a process of obtaining a gradient index type of optical element with profiles of first and second metal component concentrations by the sol-gel method. The process of fabricating a gradient index type of optical element comprises steps of dipping a silicon component-containing wet gel prepared by the sol-gel method in a solution containing an alkoxide of at least one metal component selected from a first group consisting of Ti, Nb, Ta, and Zr or a derivative thereof to thereby impart to the wet gel a concentration gradient with a concentration of the first metal component decreasing from a periphery to a center of the wet gel, allowing at least one metal component selected from a second group consisting of Ba, La, Y, Gd, Sr, Ca, and Zn to be dissolved out of the wet gel to thereby impart to the wet gel a concentration gradient with a concentration of the second metal component increasing from the periphery to the center of the wet gel, and drying, and firing the wet gel.

    Abstract translation: 本发明提供一种通过溶胶 - 凝胶法获得具有第一和第二金属成分浓度分布的光学元件的梯度折射率类型的方法。 制造梯度折射率型光学元件的方法包括以下步骤:将通过溶胶 - 凝胶法制备的含硅成分的湿凝胶浸入含有至少一种金属成分的醇盐的溶液中,所述金属成分选自由Ti, Nb,Ta和Zr或其衍生物,从而赋予湿凝胶浓度梯度,其中第一金属组分的浓度从湿凝胶的周边到中心减小,允许至少一种选自第二 由Ba,La,Y,Gd,Sr,Ca和Zn组成的组,从湿凝胶中溶出,从而赋予湿凝胶浓度梯度,其中第二金属组分的浓度从周边增加到中心 的湿凝胶,并干燥,并焙烧湿凝胶。

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