Process for producing transparent glass product having refractive index
gradient
    2.
    发明授权
    Process for producing transparent glass product having refractive index gradient 失效
    具有折射率梯度的透明玻璃制品的制造方法

    公开(公告)号:US4767435A

    公开(公告)日:1988-08-30

    申请号:US937468

    申请日:1986-12-02

    CPC分类号: C03C23/0095 Y10S65/90

    摘要: A process for producing a transparent glass product having a refractive index gradient by the molecular stuffing method is described. A thallium compound is used as a dopant and, after a concentration gradient of the thallium dopant is formed, the porous glass product is heated up to the temperature region of 350.degree. to 550.degree. C. at a temperature-rising rate of 25.degree. to 150.degree. C./hour in a reducing gas atmosphere and then heat treated above 550.degree. C. in an inert gas atmosphere to collapse micropores in the porous glass product, thereby obtaining a glass product having a refractive index gradient which is transparent and free of light-scattering and coloration. The glass product is suitable as materials (preforms) for optical fibers or materials for rod-shaped lenses, particularly rod-shaped microlenses for microlens arrays and microlenses for coupling an optical fiber and a light source.

    摘要翻译: 描述了通过分子填充方法制造具有折射率梯度的透明玻璃制品的方法。 使用铊化合物作为掺杂剂,并且在形成铊掺杂剂的浓度梯度之后,将多孔玻璃产物以25℃至25℃的升温速率加热到350℃至550℃的温度区域 150℃/小时,然后在惰性气体气氛中在550℃以上进行热处理,使多孔玻璃制品中的微孔塌陷,得到折射率梯度为透明且无 光散射和着色。 玻璃制品适用于用于光纤的材料(预型件)或用于棒状透镜的材料,特别是用于微透镜阵列的棒状微透镜和用于耦合光纤和光源的微透镜。

    Faraday rotation glass
    4.
    发明授权
    Faraday rotation glass 失效
    法拉第旋转玻璃

    公开(公告)号:US4415464A

    公开(公告)日:1983-11-15

    申请号:US357447

    申请日:1982-03-12

    CPC分类号: C03C4/00 C03C3/247

    摘要: A Faraday rotation glass comprising, in mole %,______________________________________ P.sub.2 O.sub.5 5 to 30% where up to 5/6 on a molar basis of the P.sub.2 O.sub.5 can be replaced by B.sub.2 O.sub.3 ; TbF.sub.3 11.4 to 45%; AlF.sub.3 0 to 25%; and RF at least 40% ______________________________________ where RF includes at least 3% BaF.sub.2, 0 to 64% MgF.sub.2, 0 to 32% NaF, 0 to 40% SrF.sub.2, 0 to 26% CaF.sub.2, 0 to 20% LiF and 0 to 20% KF.

    摘要翻译: 一种法拉第旋转玻璃可以用B 2 O 3代替,摩尔%的P 2 O 5为5-30%,其中高达5/6摩尔的P 2 O 5。 -TbF3 11.4〜45%; -AlF 3 0〜25%; 和-RF至少40% - 其中RF包括至少3%的BaF 2,0至64%的MgF 2,0至32%的NaF,0至40%的SrF 2,0至26%的CaF 2,0至20%的LiF和0至20 %KF。

    Process of producing soft aperture filter
    6.
    发明授权
    Process of producing soft aperture filter 失效
    生产软孔径过滤器的过程

    公开(公告)号:US4108621A

    公开(公告)日:1978-08-22

    申请号:US751300

    申请日:1976-12-16

    摘要: A process for producing a soft aperture filter having high acid and heat resistance as well as a desired colored layer thickness comprising heat-treating a glass, having a base composition of 55 to 72 mole percent SiO.sub.2, 15 to 35 mole percent Na.sub.2 O, 0 to 5 percent di-valent oxides other than ZnO, 4 to 15 mole percent ZnO, and 0 to 5 mole percent Al.sub.2 O.sub.3 with Sb.sub.2 O.sub.3 and/or As.sub.2 O.sub.3 additionally present in an amount of 2 to 5 weight percent of the base composition, in a fused bath containing 14 to 60 mole percent of a silver salt, and optionally with NaNO.sub.3 and/or Na.sub.2 SO.sub.4.

    摘要翻译: 一种生产具有高耐酸性和耐热性的软孔过滤器以及所需着色层厚度的方法,包括热处理玻璃,其基本组成为55至72摩尔%SiO 2,15至35摩尔%Na 2 O,0至 在氧化锌中的5%的二价氧化物,4至15摩尔%的ZnO和0至5摩尔%的Al 2 O 3与Sb 2 O 3和/或As 2 O 3以基础组合物的2至5重量%的量存在于熔融浴中 含有14至60摩尔%的银盐,以及任选地含有NaNO 3和/或Na 2 SO 4。

    Process for producing optical glass
    10.
    发明授权
    Process for producing optical glass 失效
    光学玻璃生产工艺

    公开(公告)号:US4851024A

    公开(公告)日:1989-07-25

    申请号:US148570

    申请日:1988-01-26

    CPC分类号: C03C21/001

    摘要: A uniform refractive index-type glass is prepared by ion exchange in which a glass containing ions of a first type is immersed in a molten salt containing ions of a second type, the ions in the molten salt having a higher refractive index than the ions in the glass. The glass is removed from the molten salt at a predetermined point and before the saturation point or equilibrium and the ion distribution becomes uniform throughout the glass. The concentration of first and second ions is not uniform from the center of the glass to its outer surface. The glass is next heated to make the concentrations of the first and second ions substantially uniform throughout the glass from the center to the outer surface. Optionally, this glass is then immersed in a molten salt containing a third type of ion having a lower refractive index than the second ion for exchange with part of the ions in the second type. A gradient refractive index-type glass in which the concentration of the second type of ions decreases parabolically from the center of the glass to the outer surface while the concentration of the third type of ions increases parabolically from the center of the glass to the outer surface.

    摘要翻译: 通过离子交换制备均匀的折射率型玻璃,其中将含有第一类型的离子的玻璃浸入含有第二类离子的熔盐中,熔融盐中的离子的折射率高于 玻璃。 在预定点和饱和点或平衡之前从熔融盐中除去玻璃,并且整个玻璃中的离子分布变得均匀。 第一和第二离子的浓度从玻璃的中心到其外表面是不均匀的。 接着加热玻璃使得第一和第二离子的浓度在整个玻璃中从中心到外表面基本上均匀。 任选地,将该玻璃浸入含有比第二离子低的折射率的第三类离子的熔盐中,以与第二类型的部分离子交换。 梯度折射率型玻璃,其中第二类离子的浓度从玻璃的中心向抛物线减少到外表面,同时第三类离子的浓度从玻璃的中心向抛物面增加到外表面 。