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1. 发明授权

US11312651B2 Optical fiber drawing method and drawing apparatus 有权
公开(公告)号：US11312651B2
公开(公告)日：2022-04-26
申请号：US16330886
申请日：2017-09-04
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Satoshi Yoshikawa , Iwao Okazaki , Takashi Yamazaki
IPC分类号： C03B37/027 , C03B37/029 , G02B6/02
摘要： An optical fiber drawing method where a glass base material passes through an opening provided in a drawing furnace from the material side and drawing is performed by suspending and descending the material into the drawing furnace while being sealed by a sealing mechanism provided in the vicinity of the opening, in which a first portion of the sealing mechanism seals a gap between an outer peripheral surface of the material and an inner surface of the opening when drawing starts and a tapered portion of the material starts passing through the first portion, and a second portion is disposed above the first portion before sealing by the first portion becomes ineffective, and then conduction between inside and outside of the drawing furnace is carried out to prevent fluctuation of pressure inside the furnace immediately after disposing the second portion and the conduction is interrupted when the material further descends.

2. 发明授权

US11230490B2 Seal structure for optical fiber drawing furnace and optical fiber production method 有权
公开(公告)号：US11230490B2
公开(公告)日：2022-01-25
申请号：US16465164
申请日：2017-11-28
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Satoshi Yoshikawa
IPC分类号： C03B37/027 , C03B37/029
摘要： A seal structure for an optical fiber drawing furnace is for plugging a gap between an upper end opening of the fiber furnace, and an optical fiber glass preform wherein a seed rod and a taper portion are present in an upper portion thereof. The seal structure comprises a first cap member engaging the seed rod of the glass preform; a second cap member covering the taper portion of the glass preform and the first cap member; a spacer member disposed between the first and second cap member, supporting the second cap member, adjusting, via a positional adjustment structure, the height position of the second cap member in the axial direction, and causing the lower extremity of the second cap member to be at a position close to the taper portion; and a seal member which seals between the upper end opening and the glass preform and/or second cap member.

3. 发明授权

US11214506B2 Suspension structure and suspension method for optical fiber preform and manufacturing method and suspension method for optical fiber 有权
公开(公告)号：US11214506B2
公开(公告)日：2022-01-04
申请号：US16498490
申请日：2018-03-29
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Satoshi Yoshikawa
IPC分类号： G03B37/00 , C03B37/027 , C03B37/029 , H01S3/094
摘要： A suspension structure of the present embodiment conveys an optical fiber preform into a drawing furnace. A suspension portion formed in a depressed shape or a projected shape or as a hole is formed in a dummy rod connected on an upper side of the optical fiber preform conveyed into the drawing furnace. The suspension structure includes: a joining mechanism configured to cover at least a part of circumference of the dummy rod and include an arm that extends on both sides in a direction perpendicular to a drawing direction and a retention portion that engages with the suspension portion and retains the optical fiber preform; and an engagement mechanism including a gripping portion with which the arm engages and which hangs the optical fiber preform.

4. 发明授权

US09739967B2 Wiring member 有权
公开(公告)号：US09739967B2
公开(公告)日：2017-08-22
申请号：US15182789
申请日：2016-06-15
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Satoshi Yoshikawa
IPC分类号： G02B6/00 , G02B6/44 , G02B6/42 , H02G15/10 , H01B11/18
CPC分类号： G02B6/4439 , G02B6/00 , G02B6/4284 , G02B6/4472 , H01B11/1895 , H02G15/10
摘要： A wiring member comprises a first module having a first communication unit, second modules having respective second communication units, a cable module having cables which connect the first communication unit to the second communication units, and a branching module which is disposed at a prescribed position in the cable module. The branching module has a first cable insertion portion in which the cables are inserted in bundled form and a second cable insertion portion in which the cables are inserted separately, and the branching module is fixed to at least one of the cables in a first state and is made movable relative to the cables in a second state. One end portions of the cables are connected to the first module in bundled form and the other end portions of the cables are connected to the respective second modules separately.

5. 发明授权

US09081201B2 Optical unit and wavelength selective switch 有权
标题翻译：光学单元和波长选择开关
公开(公告)号：US09081201B2
公开(公告)日：2015-07-14
申请号：US13939999
申请日：2013-07-11
申请人： Sumitomo Electric Industries, Ltd.
发明人： Satoshi Yoshikawa , Manabu Shiozaki
IPC分类号： G02B27/30 , G02B6/35 , G02B6/293
CPC分类号： G02B27/30 , G02B6/2931 , G02B6/29313 , G02B6/3512 , G02B6/3534 , G02B6/356
摘要： In a wavelength selective switch, a holding member is used to rotate one end of optical fibers and a collimator array around a rotation axis to thereby change an incident angle of collimated light with respect to incident surfaces of a beam expander optical system. When the incident angle of the collimated light on the beam expander optical system is changed, an amount of variation in an emission angle of light from the beam expander optical system is not proportional (inversely proportional) to the magnification of the beam expander optical system. Thus, this wavelength selective switch can easily fine-tune the incident position (beam position) of light with respect to each reflecting surface of a MEMS mirror by rotating the holding member.
摘要翻译：在波长选择开关中，保持构件用于围绕旋转轴旋转光纤的一端和准直器阵列，从而改变准直光相对于光束扩展器光学系统的入射表面的入射角。当光束扩展器光学系统上的准直光的入射角改变时，来自光束扩展器光学系统的光的发射角的变化量与扩束器光学系统的倍率成比例（成反比）。因此，通过旋转保持构件，该波长选择开关可以容易地微调相对于MEMS反射镜的每个反射表面的光的入射位置（光束位置）。

6. 发明授权

US11795099B2 Furnace gas feeding device, optical fiber production device, and optical fiber production method 有权
公开(公告)号：US11795099B2
公开(公告)日：2023-10-24
申请号：US16981919
申请日：2019-03-22
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Satoshi Yoshikawa , Katsuyuki Tsuneishi
IPC分类号： C03B37/029
CPC分类号： C03B37/029 , C03B2205/91
摘要： A furnace gas supply apparatus configured to supply gas into a drawing furnace, includes: a first flow channel introducing the gas from a predetermined first gas inlet to flow the gas from a predetermined first gas outlet toward a gas storage portion, and a second flow channel introducing the gas stored in the gas storage portion from a predetermined second gas inlet to flow the gas from a predetermined second gas outlet toward a furnace core tube of the drawing furnace, in which the gas storage portion is provided between the first gas outlet and the second gas inlet, and in which an opening position of the second gas inlet is provided at a position different from an opening position of the first gas outlet.

7. 发明授权

US09217834B2 Optical device, method of manufacturing optical device, and optical device assembly method 有权
标题翻译：光学装置，光学装置的制造方法以及光学装置的装配方法
公开(公告)号：US09217834B2
公开(公告)日：2015-12-22
申请号：US13940029
申请日：2013-07-11
申请人： Sumitomo Electric Industries, Ltd.
发明人： Satoshi Yoshikawa
IPC分类号： G02B6/42 , G02B6/35 , G02B6/293
CPC分类号： G02B6/42 , G02B6/2931 , G02B6/3512 , G02B6/356 , Y10T29/49128
摘要： An optical device includes an optical base, an electric board, a fiber tray, and the like, which are placed in an enclosure. In particular, the electric board is made smaller than the optical base, and the fiber tray is placed in a space defined between an outer peripheral surface of the electric board and an inner side surface of the enclosure. In other word, the optical device uses a gap between the electric board and the enclosure not as a dead space but as a space for routing a remaining portion of the optical fiber. Thus, the optical device can improve space efficiency and thereby can reduce its size.
摘要翻译：光学装置包括放置在外壳中的光学基座，电路板，光纤托盘等。特别地，电板被制成小于光学基座，并且纤维托盘被放置在限定在电板的外周表面和外壳的内侧表面之间的空间中。换句话说，光学装置使用电路板和外壳之间的间隙不是死空间，而是作为用于布置光纤的剩余部分的空间。因此，光学装置可以提高空间效率，从而可以减小其尺寸。

8. 发明授权

US09036263B2 Optical unit and wavelength selective switch 有权
公开(公告)号：US09036263B2
公开(公告)日：2015-05-19
申请号：US13939999
申请日：2013-07-11
申请人： Sumitomo Electric Industries, Ltd.
发明人： Satoshi Yoshikawa , Manabu Shiozaki
IPC分类号： G02B27/30 , G02B6/35 , G02B6/293
摘要： In a wavelength selective switch, a holding member is used to rotate one end of optical fibers and a collimator array around a rotation axis to thereby change an incident angle of collimated light with respect to incident surfaces of a beam expander optical system. When the incident angle of the collimated light on the beam expander optical system is changed, an amount of variation in an emission angle of light from the beam expander optical system is not proportional (inversely proportional) to the magnification of the beam expander optical system. Thus, this wavelength selective switch can easily fine-tune the incident position (beam position) of light with respect to each reflecting surface of a MEMS mirror by rotating the holding member.

9. 发明申请

US20130265645A1 MOUNTING STRUCTURE FOR OPTICAL COMPONENT, WAVELENGTH-SELECTIVE DEVICE, AND METHOD FOR MANUFACTURING MOUNTING STRUCTURE FOR OPTICAL COMPONENT 审中-公开
标题翻译：用于光学元件的安装结构，波长选择装置和用于制造光学部件的安装结构的方法
公开(公告)号：US20130265645A1
公开(公告)日：2013-10-10
申请号：US13857697
申请日：2013-04-05
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Manabu Izaki , Satoshi Yoshikawa
IPC分类号： G02B7/18 , G02B27/10 , G02B5/08
CPC分类号： G02B7/1805 , G02B5/08 , G02B7/18 , G02B27/1006 , Y10T156/10
摘要： Provided is a mounting structure for an optical component, including: an optical component having at least one of a reflective surface which reflects light, and a transmissive surface which transmits light; a base member having a placement surface configured to place the optical component thereon; and an adhesive layer interposed between the optical component and the placement surface of the base member to fixedly bond the optical component and the placement surface together. The adhesive layer includes a filler, and the filler is present substantially as a monolayer between the optical component and the placement surface.
摘要翻译：提供一种用于光学部件的安装结构，包括：具有反射光的反射表面和透射光的透射表面中的至少一个的光学部件; 具有配置用于将光学部件放置在其上的放置表面的基底部件; 以及插入在所述光学部件和所述基座部件的所述放置面之间的粘合层，以将所述光学部件和所述放置面牢固地接合在一起。粘合剂层包括填料，并且填料基本上以光学组件和放置表面之间的单层存在。

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