公开(公告)号：US5306322A

公开(公告)日：1994-04-26

申请号：US924767

申请日：1992-07-24

申请人： Shinji Ishikawa ,  Yuichi Ohga ,  Ichiro Tsuchiya ,  Hiroo Kanamori ,  Hiroshi Yokota ,  Michihisa Kyoto

发明人： Shinji Ishikawa ,  Yuichi Ohga ,  Ichiro Tsuchiya ,  Hiroo Kanamori ,  Hiroshi Yokota ,  Michihisa Kyoto

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/023

CPC分类号： C03B37/01446 ,  C03B37/0146 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  Y10S65/16 ,  Y10S65/90

摘要： The present invention providesa process for the dehydrating and purifying treatment by heating a porous glass preform for an optical fiber comprising passing the porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere comprising an inert gas and a silicon halogenide gas;a process for the fluorine-doping treatment by heating a porous glass preform for an optical fiber comprising passing a porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere comprising a fluorine compound gas and an inert gas; anda process for the vitrifying treatment by heating a porous glass preform for an optical fiber comprising passing the preform, which has been previously dehydrated and purified, through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere gas.

摘要翻译： 本发明提供了一种通过加热用于光纤的多孔玻璃预制件进行脱水和净化处理的方法，包括使多孔玻璃预制件通过具有SiC层的马弗管至少在其内表面上在高温下在包括 惰性气体和卤化硅气体; 通过加热用于光纤的多孔玻璃预制件进行氟掺杂处理的方法，包括使多孔玻璃预制件通过具有SiC层的马弗管至少在其内表面上在高温下在包含氟化合物气体 和惰性气体; 以及通过加热用于光纤的多孔玻璃预制件进行玻璃化处理的方法，包括使预先脱水和净化的预成型体至少在其内表面上通过具有SiC层的马弗管在高温下 气氛气体。

公开(公告)号：US5106401A

公开(公告)日：1992-04-21

申请号：US544942

申请日：1990-06-28

申请人： Shinji Ishikawa ,  Yuichi Ohga ,  Ichiro Tsuchiya ,  Hiroo Kanamori ,  Hiroshi Yokota ,  Michihisa Kyoto

发明人： Shinji Ishikawa ,  Yuichi Ohga ,  Ichiro Tsuchiya ,  Hiroo Kanamori ,  Hiroshi Yokota ,  Michihisa Kyoto

IPC分类号： G02B6/00 ,  C03B37/014

CPC分类号： C03B37/01446 ,  C03B37/0146 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  Y10S65/16 ,  Y10S65/90

摘要： The present invention providesa process for the dehydrating and purifying treatment by heating a porous glass preform for an optical fiber by passing the porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere containing an inert gas and a silicon halogenide gas;a process for the fluorine-doping treatment by heating a porous glass preform for an optical fiber by passing a porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere containing a fluorine compound gas and an inert gas; anda process for the vitrifying treatment by heating a porous glass preform for an opticla fiber by passing the preform, which has been previously dehydrated and purified, through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere gas.

公开(公告)号：US5474589A

公开(公告)日：1995-12-12

申请号：US226413

申请日：1994-04-12

申请人： Yuichi Ohga ,  Shinji Ishikawa ,  Tatsuhiko Saito ,  Hiroshi Yokota ,  Michihisa Kyoto

发明人： Yuichi Ohga ,  Shinji Ishikawa ,  Tatsuhiko Saito ,  Hiroshi Yokota ,  Michihisa Kyoto

IPC分类号： G02B1/02 ,  C03B19/12 ,  C03C3/06 ,  C03C3/112 ,  C03C4/00 ,  G02B6/02 ,  C03B37/018

CPC分类号： C03C4/0085 ,  C03B19/12 ,  C03C3/06 ,  G02B6/02 ,  C03B2201/12 ,  C03C2201/12 ,  C03C2203/44 ,  C03C2203/54 ,  Y02P40/57

摘要： A UV light-permeable optical glass consisting of a fluorine-doped synthetic quartz glass, which has a long term reliability.

摘要翻译： 一种由氟掺杂的合成石英玻璃组成的紫外透光光学玻璃，具有长期的可靠性。

公开(公告)号：US5163987A

公开(公告)日：1992-11-17

申请号：US845849

申请日：1992-03-06

申请人： Yoichi Ishiguro ,  Michihisa Kyoto ,  Hiroo Kanamori

发明人： Yoichi Ishiguro ,  Michihisa Kyoto ,  Hiroo Kanamori

IPC分类号： C03B37/14 ,  C03B8/00 ,  C03B20/00 ,  C03B37/014 ,  G02B6/00

CPC分类号： C03B37/01446 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16 ,  Y10S65/90 ,  Y10S65/901

摘要： A method for producing a glass preform for use in the fabrication of an optical fiber, which comprises adding fluorine to a soot preform in an atmosphere comprising a fluorine-coating compound at a temperature at which the soot preform is in the porous state and then keeping or inserting it in an atmosphere containing a fluorine-containing compound at a higher temperature to vitrify it to form a glass preform, from which glass preform, an optical fiber homogeneously containing fluorine is fabricated.

摘要翻译： 一种制造用于制造光纤的玻璃预制棒的方法，其包括在烟灰预制件处于多孔状态的温度下在包含氟涂料的气氛中向烟炱预型体中加入氟，然后保持 或者在较高温度下将其插入含氟化合物的气氛中进行玻璃化以形成玻璃预成型体，制造玻璃预成型体，均匀地含有氟的光纤。

公开(公告)号：US5217516A

公开(公告)日：1993-06-08

申请号：US677414

申请日：1991-03-29

申请人： Yoichi Ishiguro ,  Hiroo Kanamori ,  Akira Urano ,  Michihisa Kyoto

发明人： Yoichi Ishiguro ,  Hiroo Kanamori ,  Akira Urano ,  Michihisa Kyoto

IPC分类号： C03B37/014

CPC分类号： C03B37/01446 ,  C03B37/0146 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16

摘要： A refractive index profile in a glass article is easily controlled by heating a solid or hollow cylindrical glass soot preform in an atmosphere comprising a fluorine-containing compound under such conditions that a partial pressure of the fluorine-containing compound is changed as the heating proceeds so as to control a fluorine concentration in a radial direction of the optical glass article.

摘要翻译： 玻璃制品中的折射率分布可以通过在包含含氟化合物的气氛中加热固体或中空的圆柱形玻璃烟炱预制件，使得随着加热进行而使含氟化合物的分压发生变化的条件 以控制光学玻璃制品的径向氟浓度。

公开(公告)号：US5221309A

公开(公告)日：1993-06-22

申请号：US938502

申请日：1992-08-31

申请人： Michihisa Kyoto ,  Minoru Watanabe ,  Hiroo Kanamori

发明人： Michihisa Kyoto ,  Minoru Watanabe ,  Hiroo Kanamori

IPC分类号： C03B37/014

CPC分类号： C03B37/0146 ,  C03B37/01446 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16 ,  Y10S65/90

摘要： A method for producing a glass preform, which method comprises forming a soot preform of glass fine particles comprising SiO.sub.2 by flame hydrolysis or solution hydrolysis of a starting glass material and sintering the soot preform in an atmosphere containing at least SiF.sub.4 to obtain a glass preform which is free from an increase in absorption due to impurities and has sufficiently low attenuation of light transmission.

摘要翻译： 一种制造玻璃预成型体的方法，该方法包括通过火焰水解或起始玻璃材料的溶液水解形成包含SiO 2的玻璃微粒的烟灰预制件，并在至少包含SiF 4的气氛中烧结烟灰预制件以获得玻璃预制件， 没有由杂质引起的吸收增加，并且具有足够低的透光衰减。

公开(公告)号：US5022904A

公开(公告)日：1991-06-11

申请号：US537010

申请日：1990-06-13

申请人： Yoichi Ishiguro ,  Hiroo Kanamori ,  Akira Urano ,  Michihisa Kyoto

发明人： Yoichi Ishiguro ,  Hiroo Kanamori ,  Akira Urano ,  Michihisa Kyoto

IPC分类号： C03B37/014

CPC分类号： C03B37/01446 ,  C03B37/0146 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16

摘要： A refractive index profile in a glass article is easily controlled by heating a solid or hollow cylindrical glass soot preform in an atmosphere comprising a fluorine-containing compound under such conditions that a partial pressure of the fluorine-containing compound is changed as the heating proceeds so as to control a fluorine concentration in a radial direction of the optical glass article.

摘要翻译： 玻璃制品中的折射率分布可以通过在包含含氟化合物的气氛中加热固体或中空的圆柱形玻璃烟炱预制件，使得随着加热进行而使含氟化合物的分压发生变化的条件 以控制光学玻璃制品的径向氟浓度。

公开(公告)号：US4979971A

公开(公告)日：1990-12-25

申请号：US472446

申请日：1990-01-29

申请人： Michihisa Kyoto ,  Minoru Watanabe ,  Hiroo Kanamori

发明人： Michihisa Kyoto ,  Minoru Watanabe ,  Hiroo Kanamori

IPC分类号： C01B33/107 ,  C03B37/014 ,  C03C13/04 ,  G02B6/00

CPC分类号： C03B37/0146 ,  C03B37/01446 ,  C03B37/01453 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16 ,  Y10S65/90

摘要： A method for producing a glass preform for an optical fiber is disclosed. The method comprises forming a soot preform of glass fine particles comprising SiO.sub.2 by flame hydrolysis or solution hydrolysis of a starting glass material and sintering the soot preform in an atmosphere containing at least SiF.sub.4 to obtain a glass preform which is free from an increase in absorption due to impurities and has sufficiently low attenuation of light transmission.

摘要翻译： 公开了一种用于生产用于光纤的玻璃预制棒的方法。 该方法包括通过火焰水解或起始玻璃材料的溶液水解形成包含SiO 2的玻璃细颗粒的烟灰预制件，并在至少包含SiF 4的气氛中烧结烟灰预制件以获得玻璃预成型体，其不受吸收增加的影响 并且具有足够低的光透射衰减。

公开(公告)号：US4880452A

公开(公告)日：1989-11-14

申请号：US289444

申请日：1988-12-22

申请人： Hiroo Kanamori ,  Gotaro Tanaka ,  Michihisa Kyoto ,  Naoki Yoshioka ,  Futoshi Mizutani

发明人： Hiroo Kanamori ,  Gotaro Tanaka ,  Michihisa Kyoto ,  Naoki Yoshioka ,  Futoshi Mizutani

IPC分类号： B65G47/90 ,  B23Q7/04 ,  B25J5/02 ,  B25J19/00 ,  B66C1/22 ,  B66C1/24 ,  B66C11/02 ,  B66C11/04 ,  B66C11/06 ,  B66C13/12 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/00

CPC分类号： C03B37/01446 ,  C03B2201/12 ,  C03B2203/22 ,  Y10S65/16

摘要： A method for producing a glass preform for an optical fiber comprising a core and a cladding containing fluorine is fisclosed. The method comprises forming a porous glass layer of substantially pure quartz on an outer surface of a fused glass rod consisting of a central portion of substantially pure quartz and a peripheral portion of quartz glass containing fluorine, and heating a composite of the fused glass rod and the porous glass layer in an atmosphere containing fluorine to add fluorine to the porous glass layer and to make it transparent, by which contamination of glass with hydroxyl groups can be prevented and light transmission characteristics of an optical fiber fabricated from the glass preform are improved.

摘要翻译： 公开了一种用于生产包含芯和包含氟的包层的光纤玻璃预制棒的方法。 该方法包括在由基本上纯的石英的中心部分和含氟的石英玻璃的周边部分组成的熔融玻璃棒的外表面上形成基本上纯的石英的多孔玻璃层，并加热熔融的玻璃棒和 在含氟的气氛中的多孔玻璃层，向多孔玻璃层中添加氟并使其透明化，由此可以防止由羟基引起的玻璃的污染，并提高由玻璃预制件制造的光纤的透光特性。

公开(公告)号：US4812155A

公开(公告)日：1989-03-14

申请号：US132655

申请日：1987-12-10

申请人： Michihisa Kyoto ,  Naoki Yoshioka ,  Gotaro Tanaka ,  Hiroo Kanamori ,  Minoru Watanabe ,  Motohiro Nakahara

发明人： Michihisa Kyoto ,  Naoki Yoshioka ,  Gotaro Tanaka ,  Hiroo Kanamori ,  Minoru Watanabe ,  Motohiro Nakahara

IPC分类号： C03B37/014 ,  C03B37/018

CPC分类号： C03B37/01446 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2203/22 ,  Y10S65/16

摘要： A method for producing a glass preform for optical fibers in which fluorine is efficiently incorporated into the preform without incorporation of Fe or Cu. A fine glass particle mass, made primarily of quartz, is converted into transparent glass by heating it in a gas atmosphere containing at least a fluorine-based compound gas and a chlorine-based compound gas. The preferred heating range is 1,100.degree. to 1,400.degree. C.

摘要翻译： 一种用于制造光纤的玻璃预制棒的方法，其中氟被有效地结合到预成型体中而不引入Fe或Cu。 主要由石英制成的微细玻璃颗粒物质通过在至少含有氟基化合物气体和氯基化合物气体的气体气氛中加热而转化为透明玻璃。 优选的加热范围为1100至1400℃。