SINGLE-CRYSTAL SILICON PULLING SILICA CONTAINER AND PRODUCING METHOD THEREOF
    23.
    发明申请
    SINGLE-CRYSTAL SILICON PULLING SILICA CONTAINER AND PRODUCING METHOD THEREOF 审中-公开
    单晶硅拉丝二氧化硅容器及其制造方法

    公开(公告)号:US20140182510A1

    公开(公告)日:2014-07-03

    申请号:US14122509

    申请日:2013-02-19

    Inventor: Shigeru Yamagata

    Abstract: A single-crystal silicon pulling silica container including: a transparent silica glass layer in the inner side of the silica container; and an opaque silica glass layer containing gaseous bubbles in the outer side of the silica container, wherein the transparent layer constitutes of a high-OH group layer placed on an inner surface side of the silica container containing the OH group at a concentration of 200 to 2000 ppm by mass and a low-OH group layer having the OH group concentration lower than the high-OH group layer containing Ba at a concentration of 50 to 2000 ppm by mass. Resulting in the silica container used for pulling single-crystal silicon, providing the silica container improves etching corrosion resistance of the container inner surface to silicon melt when the entire inner surface of transparent silica glass of the container is crystallized short after using the container and method for such silica container.

    Abstract translation: 一种单晶硅拉硅石容器,其包括:二氧化硅容器的内侧的透明石英玻璃层; 以及在二氧化硅容器的外侧含有气泡的不透明二氧化硅玻璃层,其中,所述透明层构成高OH基层,所述高OH基层位于含有浓度为200〜200的OH基团的二氧化硅容器的内表面侧 2000质量ppm,OH基浓度低于含有浓度为50〜2000质量ppm的Ba的高OH基层的低-OH基层。 导致用于拉拔单晶硅的二氧化硅容器,当容器内透明石英玻璃的整个内表面在使用容器之后结晶短时,提供二氧化硅容器提高容器内表面对硅熔体的耐蚀刻腐蚀性和方法 用于这种二氧化硅容器。

    METHOD FOR PRODUCING OPTICAL FIBER PREFORM
    24.
    发明申请
    METHOD FOR PRODUCING OPTICAL FIBER PREFORM 有权
    生产光纤预制件的方法

    公开(公告)号:US20120192593A1

    公开(公告)日:2012-08-02

    申请号:US13356984

    申请日:2012-01-24

    Abstract: There is provided a method for producing an optical fiber preform used in producing an optical fiber having low attenuation. The production method includes (1) a rod formation step of forming a glass rod of a silica glass containing an alkali metal element, the average concentration of the alkali metal element being 5 at·ppm or more, (2) a heat treatment step of heat-treating the glass rod, (3) a core part formation step of forming an alkali metal element-free silica glass layer having a chlorine concentration of 6000 at·ppm or more around the perimeter of the glass rod heat-treated in the heat treatment step to form a core part including the glass rod and the silica glass layer, and (4) a cladding part formation step of forming a cladding part of a silica-based glass having a lower refractive index than the core part around the perimeter of the core part.

    Abstract translation: 提供了用于制造具有低衰减的光纤的光纤预制件的制造方法。 制造方法包括:(1)形成含有碱金属元素的石英玻璃的玻璃棒的棒形成工序,碱金属元素的平均浓度为5atppm以上,(2)热处理工序 对玻璃棒进行热处理,(3)在热处理的玻璃棒的周边周围形成氯浓度为6000以上的碱金属元素的二氧化硅玻璃层的芯部形成工序 处理步骤以形成包括玻璃棒和石英玻璃层的核心部分,以及(4)包层部分形成步骤,形成具有比围绕周边的核心部分的折射率低的二氧化硅基玻璃的包层部分 核心部分。

    SYNTHETIC OPAQUE QUARTZ GLASS AND METHOD FOR PRODUCING THE SAME
    25.
    发明申请
    SYNTHETIC OPAQUE QUARTZ GLASS AND METHOD FOR PRODUCING THE SAME 审中-公开
    合成OPAQUE QUARTZ玻璃及其制造方法

    公开(公告)号:US20100316858A1

    公开(公告)日:2010-12-16

    申请号:US12515727

    申请日:2007-12-04

    Abstract: Provided is a method for producing a synthetic opaque quartz glass where flame processing can be performed in high purity with a simple way and even a large sized one can be produced, and the synthetic opaque quartz glass.A method for producing a synthetic opaque quartz glass which comprises the step of heating and burning a quartz glass porous body under a pressure of from 0.15 MPa to 1000 MPa at a temperature of from 1200° C. to 2000° C. The quartz glass porous body is prepared by depositing quartz glass particles which are produced by hydrolyzing a silicon compound with an oxyhydrogen flame.

    Abstract translation: 提供一种制造合成不透明石英玻璃的方法,其中可以以简单的方式进行高纯度的火焰加工,甚至可以制造大尺寸的方法,以及合成的不透明石英玻璃。 一种合成不透明石英玻璃的制造方法,其特征在于,在1200℃〜2000℃的温度下,在0.15MPa〜1000MPa的压力下对石英玻璃多孔体进行加热燃烧的工序。 通过沉积通过用氢氧焰水解硅化合物而制备的石英玻璃颗粒来制备体。

    Optical glass
    26.
    发明授权
    Optical glass 失效
    光学玻璃

    公开(公告)号:US07727918B2

    公开(公告)日:2010-06-01

    申请号:US11932024

    申请日:2007-10-31

    Abstract: An optical glass that contains Si, Al, Mg, and O is provided. The optical glass contains Si in an amount of 40% or more and 60% or less, in cation percent, Al in an amount of 10% or more and 35% or less, in cation percent, and Mg in an amount of 20% or more and 35% or less, in cation percent. In the optical glass, the total amount of Si, Al, and Mg is 99.5% or more, in cation percent. Furthermore, the optical glass contains Fe and Na each in an amount of 0.01 wtppm or less and has a transmittance to a light having a wavelength of 248 nm of 40% or more at a thickness of 5 mm.

    Abstract translation: 提供含有Si,Al,Mg和O的光学玻璃。 光学玻璃的阳离子含量为40%以上且60%以下的Si,阳离子%为10%以上且35%以下的Al,20质量%的Mg, 以上且35%以下,以阳离子%计。 在光学玻璃中,Si,Al,Mg的总量为99.5%以上。 此外,光学玻璃含有0.01重量ppm以下的Fe和Na,并且对于厚度为5mm的波长为248nm的光的透射率为40%以上。

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