公开(公告)号：EP3033308A1

公开(公告)日：2016-06-22

申请号：EP13815562.7

申请日：2013-08-13

Applicant: Draka Comteq BV

Inventor： GONNET, Cédric ,  PETITFRERE, Emmanuel ,  CALVO, Laurent ,  DELWAL, Olivier

IPC: C03B37/012 ,  C03C3/06 ,  C03C13/04 ,  G02B6/02

CPC classification number: C03B37/018 ,  C03B37/01291 ,  C03B2201/03 ,  C03B2201/32 ,  C03B2201/50 ,  C03B2203/22 ,  C03C3/06 ,  C03C13/045 ,  C03C25/1068 ,  C03C2201/02 ,  C03C2201/32 ,  C03C2201/50

Abstract: The invention relates to an optical fiber preform (20) comprising a primary preform (21) and one or more purified silica-based overclad layers (22) surrounding said primary preform (21), the purified silica-based overclad layers (22) comprising lithium and aluminium, and having a ratio between lithium concentration [Li] and aluminium concentration [Al] satisfying the following inequality (Formula (I)). 1.103≦̸[Li]/[Al]≦̸20.103   (1)

公开(公告)号：EP2495220A4

公开(公告)日：2014-01-15

申请号：EP10826742

申请日：2010-10-26

Applicant: ASAHI GLASS CO LTD

Inventor： MORITA RYUSUKE ,  NAKAGAWA TAKUYA ,  IWATA KEI ,  TAKATA MASAAKI

IPC: C03B20/00 ,  C03B8/04 ,  C03C3/06 ,  C03C4/00 ,  G02B1/02 ,  G03F7/20 ,  H01L21/027

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03C4/0085 ,  C03C2201/21 ,  C03C2201/23 ,  G03F1/50 ,  G03F7/70958 ,  Y02P40/57

公开(公告)号：EP1655270B1

公开(公告)日：2010-09-08

申请号：EP04734356.1

申请日：2004-05-21

Applicant: Shin-Etsu Quartz Products Co.,Ltd. ,  Heraeus Quarzglas GmbH & Co. KG

Inventor： OHAMA, Yasuo, c/o Takefu Plant Shin-Etsu Quartz ,  TOGAWA, Takayuki, c/oTakefu Plant Shin-Etsu Quartz ,  MIZUNO, Shigeo, c/o Takefu Plant Shin-Etsu Quartz

IPC: C03B29/06 ,  C30B15/10 ,  C03B20/00

CPC classification number: C03B19/095 ,  C03B2201/03 ,  C30B15/10 ,  Y02P40/57 ,  Y10S65/08 ,  Y10S117/90 ,  Y10T117/10

公开(公告)号：EP1854769A4

公开(公告)日：2010-07-28

申请号：EP06713315

申请日：2006-02-08

IPC: C03B20/00 ,  C03C3/06 ,  G01N21/64

CPC classification number: G01N21/64 ,  C03B11/08 ,  C03B23/0013 ,  C03B40/02 ,  C03B2201/03 ,  C03C3/06 ,  C03C23/0075 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2203/52 ,  G01N21/6402 ,  Y02P40/57

公开(公告)号：EP1712934A1

公开(公告)日：2006-10-18

申请号：EP05015251.1

申请日：2005-07-13

Applicant: Furukawa Electric North America Inc.

Inventor： Fletcher, Joseph P. , III

IPC: G02B6/00 ,  C03B37/012

CPC classification number: C03B37/01211 ,  C03B2201/03 ,  C03B2201/04 ,  Y10T428/2913

Abstract: An optical fiber preform is assembled by inserting core rod segments axially end to end inside of a first glass overclad tube having a first, relatively low concentration of a given impurity that contributes to signal attenuation in an optical fiber to be drawn from the preform. The first overclad tube with the contained core rod segments are inserted in a second glass tube having a second concentration of the given impurity which is higher than the first concentration. The wall thickness of the first overclad tube is preferably less than that of the second overclad tube, thus reducing the amount of high purity glass needed to form the first overclad tube and attendant manufacturing costs. The core rod segments may include salvageable remnants from a single long core rod produced, for example, by vapor axial deposition (VAD).

Abstract translation: 通过将芯棒片段轴向端对端插入第一玻璃外包层管的内部组装光纤预制件，所述第一玻璃外包管具有第一相对低浓度的给定杂质，其有助于从预成型件拉制的光纤中的信号衰减。 将含有芯棒段的第一外包管插入具有高于第一浓度的给定杂质的第二浓度的第二玻璃管中。 第一外包层管的壁厚优选小于第二外包层管的壁厚，从而减少形成第一外包层管所需的高纯度玻璃的量和伴随的制造成本。 芯棒段可以包括来自例如通过蒸气轴向沉积（VAD）产生的单个长芯棒的可补救残余物。

公开(公告)号：EP1669327A2

公开(公告)日：2006-06-14

申请号：EP04772329.1

申请日：2004-08-27

Applicant: The New Industry Research Organization

Inventor： Uchino, Takashi ,  Yamada, Tomoko

IPC: C03B20/00 ,  C09K11/00 ,  C09K11/08 ,  C09K11/59

CPC classification number: C03C12/00 ,  C03B19/06 ,  C03B19/066 ,  C03B20/00 ,  C03B2201/03 ,  C03B2201/04

Abstract: Gegenstand dieser Erfindung ist es, eine lichtemittierende Vorrichtung der nächsten Generation von optischen Vorrichtungen zu schaffen, die eine breite Emissionseigenschaft besitzt, bei der die Breite bei einem halben Maximum eines Emissionsspektrums in einem Wellenlängenbereich von sichtbarem Licht groß ist und die Fähigkeit vorhanden ist, eine Weißlichtemittierung durch Fotolumineszenz (PL) zu beobachten.
Bei einem Ausbackverfahren für die Aushärtung einer Formpressung, die durch Formpressung von feinen Silikatpartikeln, wie begasten Silikaten, bei einer Ausbacktemperatur von nicht höher als 1000° C entsteht, werden Hydroxylgruppen der feinen Silikatpartikel in ausreichendem Maße einer Entwässerungskondensationsreaktion ausgesetzt, so dass die Partikel transparent werden. Bei dem Verfahren entwickelt sich eine Störstellenstruktur, die ohne Entspannung aufrechterhalten bleibt, wodurch ein Quarzglas erzeugt wird. Das Quarzglas wird als Leuchtstoff verwendet

公开(公告)号：EP1658242A1

公开(公告)日：2006-05-24

申请号：EP04764302.8

申请日：2004-08-19

Applicant: Wacker Chemie AG

Inventor： SCHWERTFEGER, Fritz

IPC: C03B20/00 ,  C03B19/06 ,  B28B1/26 ,  C04B35/14

CPC classification number: B01J21/08 ,  B28B1/26 ,  C03B19/06 ,  C03B19/066 ,  C03B20/00 ,  C03B2201/03 ,  C03B2201/04 ,  C03C3/06 ,  C04B35/14 ,  C04B2235/6022 ,  C04B2235/72 ,  C04B2235/77

Abstract: The invention relates to an amorphous porous open-pore SiO2 molded body which is characterized by comprising two layers, said layers having identical structure and composition.

Abstract translation: 本发明涉及一种无定形多孔开孔SiO2成型体，其特征在于包含两层，所述层具有相同的结构和组成。

公开(公告)号：EP1289896B1

公开(公告)日：2006-03-22

申请号：EP01964953.2

申请日：2001-05-31

Applicant: Heraeus Quarzglas GmbH & Co. KG ,  SHIN-ETSU QUARTZ PRODUCTS CO., LTD.

Inventor： UEDA, Tetsuji ,  NISHIMURA, Hiroyuki ,  FUJINOKI, Akira

IPC: C03B19/14

CPC classification number: C03C23/007 ,  C03B19/1453 ,  C03B32/00 ,  C03B2201/03 ,  Y10S65/90

Abstract: An object of the present invention is to overcome the problems of the prior art technique, and to provide a heat treatment method as well as a heat treatment apparatus capable of heat treating, with higher efficiency, a synthetic quartz glass for optical use having higher homogeneity and higher purity. Another object of the present invention is to provide an a synthetic quartz glass for optical use. The problems above are solved by, in a method for heat treating a flat cylindrical synthetic quartz glass body provided as the object to be heat treated in a heating furnace, a method for heat treating a synthetic quartz glass for optical use comprising preparing a vessel made of quartz glass and having a flat cylindrical space for setting therein the object synthetic quartz glass body, placing two or more object synthetic quartz glass bodies into the vessel in parallel with each other, filling the space with SiO2 powder, setting the vessel inside the heating furnace with its lid closed, and applying the heat treatment to the vessel.

公开(公告)号：EP1471039B1

公开(公告)日：2005-12-28

申请号：EP04009276.9

申请日：2004-04-20

Applicant: Heraeus Quarzglas GmbH & Co. KG ,  SHIN-ETSU QUARTZ PRODUCTS CO., LTD.

Inventor： Sato, Tatsuhiro

IPC: C03B20/00 ,  H01L21/68 ,  C03C23/00 ,  C03C15/00 ,  C03B32/00 ,  C03B25/04 ,  C03B19/14

CPC classification number: C03C23/008 ,  C03B32/00 ,  C03B2201/03 ,  C03C15/00 ,  C03C23/0075 ,  C30B35/00 ,  H01L21/673

公开(公告)号：EP1006087B1

公开(公告)日：2003-06-04

申请号：EP99123835.3

申请日：1999-12-01

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Schultheis, Andreas

IPC: C03C1/02 ,  C03B32/00

CPC classification number: C03C1/022 ,  C03B19/095 ,  C03B19/102 ,  C03B19/1095 ,  C03B2201/03 ,  C03C1/026