METHOD OF MANUFACTURING OPTICAL FIBER PREFORM, AND OPTICAL FIBER
    151.
    发明申请
    METHOD OF MANUFACTURING OPTICAL FIBER PREFORM, AND OPTICAL FIBER 审中-公开
    制造光纤预制件的方法和光纤

    公开(公告)号:US20140140673A1

    公开(公告)日:2014-05-22

    申请号:US14065599

    申请日:2013-10-29

    Abstract: The present invention relates to a preform manufacturing method and others for effectively reducing variation in refractive index due to chlorine used in manufacture of an optical fiber preform. The manufacturing method includes a dechlorination step carried out between a point of an end time of a dehydration step and a point of a start time of a sintering step, the dechlorination step being a step of heating a porous preform after dehydrated, in an atmosphere containing no chlorine-based dehydrating agent, for a given length of time while maintaining a temperature lower than a sintering temperature, thereby removing chlorine from the porous preform after dehydrated.

    Abstract translation: 本发明涉及一种用于有效地减少由于在制造光纤预制件时使用的氯引起的折射率变化的预制件制造方法。 制造方法包括在脱水步骤的结束时间点和烧结步骤的开始时间点之间进行的脱氯工序,脱氯工序是在脱水后的多孔预成型体的加热步骤中,在含有 在保持低于烧结温度的温度的同一时间段内,不脱氯脱水剂,从而在脱水后从多孔预型体中除去氯。

    METHOD FOR PRODUCING OPTICAL FIBER PREFORM
    153.
    发明申请
    METHOD FOR PRODUCING OPTICAL FIBER PREFORM 审中-公开
    生产光纤预制件的方法

    公开(公告)号:US20120198892A1

    公开(公告)日:2012-08-09

    申请号:US13363748

    申请日:2012-02-01

    Abstract: A method for producing an optical fiber preform according to the present invention includes an etching step of heating a silica-based glass tube using a heat source continuously traversed in the longitudinal direction of the glass tube to etch the inner surface portion of the glass tube containing impurities while an etching gas is allowed to flow into the glass tube. The glass tube has a maximum alkali metal concentration of 500 to 20,000 atomic ppm, a maximum chlorine concentration of 0 to 1000 atomic ppm, and a maximum fluorine concentration of 0 to 10,000 atomic ppm. In the etching step, the maximum temperature of the outer surface of the glass tube is in the range of 1900° C. to 2250° C., and the heating time is set to a time equal to or less than a time (min) given by ( 7 - alkai   metal   concentration   ppm 5000 ) .

    Abstract translation: 根据本发明的光纤预制棒的制造方法包括:蚀刻步骤,使用在玻璃管的纵向连续穿过的热源来加热二氧化硅基玻璃管,以蚀刻含有玻璃管的玻璃管的内表面部分 允许蚀刻气体流入玻璃管中的杂质。 玻璃管的碱金属浓度最高为500〜20,000原子ppm,最大氯浓度为0〜1000原子ppm,最大氟浓度为0〜10,000原子ppm。 在蚀刻步骤中,玻璃管的外表面的最高温度在1900℃至2250℃的范围内,加热时间设定为等于或小于时间(分钟)的时间, 由(7-烷烃金属浓度ppm ppm 5000)给出。

    TiO2-containing silica glass for optical member for EUV lithography
    154.
    发明授权
    TiO2-containing silica glass for optical member for EUV lithography 失效
    用于EUV光刻的光学元件的含TiO 2的二氧化硅玻璃

    公开(公告)号:US08039409B2

    公开(公告)日:2011-10-18

    申请号:US12904236

    申请日:2010-10-14

    Abstract: The present invention provides a TiO2-containing silica glass from which a transparent extremely low thermal expansion glass having excellent transparency and having a temperature region in which the coefficient of thermal expansion is substantially zero can be obtained. The present invention relates to a TiO2-containing silica glass for optical member for EUV lithography, having a TiO2 concentration of from 3 to 14% by mass; an internal transmittance per 1-mm thickness in a wavelength region of from 400 to 700 nm, T400-700, of 97% or more; and an internal transmittance per 1-mm thickness in a wavelength region of from 400 to 3,000 nm, T400-3,000, of 70% or more.

    Abstract translation: 本发明提供一种含TiO 2的二氧化硅玻璃,可以得到透明度极高的透明性高且热膨胀系数基本上为零的温度区域的玻璃。 本发明涉及TiO 2浓度为3〜14质量%的用于EUV光刻用的光学部件的含TiO 2的二氧化硅玻璃, 在400〜700nm波长范围内,每1mm厚的内透射率,T400-700,97%以上; 在400〜3000nm的波长范围内,每1mm厚的内透射率,T400-3,000,70%以上。

    Method for manufacturing a lens of synthetic quartz glass with increased H2 content
    155.
    发明授权
    Method for manufacturing a lens of synthetic quartz glass with increased H2 content 有权
    制造具有增加的H2含量的合成石英玻璃透镜的方法

    公开(公告)号:US07934390B2

    公开(公告)日:2011-05-03

    申请号:US11748151

    申请日:2007-05-14

    Applicant: Eric Eva

    Inventor: Eric Eva

    Abstract: The invention relates to a method for the manufacture of a lens of synthetic quartz glass with increased H2 content, in particular for a lens for an optical system with an operating wavelength of less than 250 nm, in particular less than 200 nm, with the steps: providing a precursor product of synthetic quartz glass, in particular with a first H2 content of less than 2·1015 molecules/cm3, with a circumferential border surface and two base surfaces lying on opposite sides, wherein at least one partial surface of at least one of said base surfaces has a curvature, and treating the precursor product in an H2-containing atmosphere in order to produce a precursor product of synthetic quartz glass with a second H2 content that is increased in relation to the first H2 content, in particular with a second H2 content of more than 1016 molecules/cm3, and measuring at least one optical property of said precursor product with said second H2 content.

    Abstract translation: 本发明涉及一种用于制造具有增加的H 2含量的合成石英玻璃透镜的方法,特别是用于具有小于250nm,特别是小于200nm的工作波长的光学系统的透镜,步骤 :提供合成石英玻璃的前体产物,特别是具有小于2×1015分子/ cm 3的第一H 2含量,周边边界表面和位于相对侧上的两个基底表面,其中至少一个部分表面至少 所述基面之一具有曲率,并且在含H2气氛中处理前体产物,以便产生具有相对于第一H 2含量增加的第二H 2含量的合成石英玻璃的前体产物,特别是与 大于1016分子/ cm 3的第二H 2含量,并测量所述前体产物与所述第二H 2含量的至少一种光学性质。

    TIO2-CONTAINING SILICA GLASS FOR OPTICAL MEMBER FOR EUV LITHOGRAPHY
    156.
    发明申请
    TIO2-CONTAINING SILICA GLASS FOR OPTICAL MEMBER FOR EUV LITHOGRAPHY 失效
    用于EUV光刻的光学成员的含TIO2的二氧化硅玻璃

    公开(公告)号:US20110028299A1

    公开(公告)日:2011-02-03

    申请号:US12904236

    申请日:2010-10-14

    Abstract: The present invention provides a TiO2-containing silica glass from which a transparent extremely low thermal expansion glass having excellent transparency and having a temperature region in which the coefficient of thermal expansion is substantially zero can be obtained. The present invention relates to a TiO2-containing silica glass for optical member for EUV lithography, having a TiO2 concentration of from 3 to 14% by mass; an internal transmittance per 1-mm thickness in a wavelength region of from 400 to 700 nm, T400-700, of 97% or more; and an internal transmittance per 1-mm thickness in a wavelength region of from 400 to 3,000 nm, T400-3000, of 70% or more.

    Abstract translation: 本发明提供一种含TiO 2的二氧化硅玻璃,可以得到透明度极高的透明性高且热膨胀系数基本上为零的温度区域的玻璃。 本发明涉及TiO 2浓度为3〜14质量%的用于EUV光刻用的光学部件的含TiO 2的二氧化硅玻璃, 在400〜700nm波长范围内,每1mm厚的内透射率,T400-700,97%以上; 在400〜3000nm的波长范围内,每1mm厚的内透射率为T400〜3000,为70%以上。

Patent Agency Ranking