[특허]Method of centering a fiber core in a multiple-crucible method

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C03B-037/022
출원번호	US-0943250 (2001-08-30)
발명자 / 주소	Trentelman, Jackson P. Anderson, James G. Brand, Ernest E.
출원인 / 주소	Corning Incorporated
대리인 / 주소	Krogh, Timothy R.Able, Kevin M.
인용정보	피인용 횟수 : 3 인용 특허 : 41

초록 ▼

The invention relates to a method of making an optical fiber and an optical fiber made in accordance with the inventive method. The method includes the step of drawing an optical fiber from a multiple crucible apparatus, wherein one of the crucibles of the apparatus has a non-symmetrical orifice (no

The invention relates to a method of making an optical fiber and an optical fiber made in accordance with the inventive method. The method includes the step of drawing an optical fiber from a multiple crucible apparatus, wherein one of the crucibles of the apparatus has a non-symmetrical orifice (not shown). The inventive fiber has at least a core and cladding. At least one section of the inventive fiber includes an orientation element.

대표청구항 ▼

The invention relates to a method of making an optical fiber and an optical fiber made in accordance with the inventive method. The method includes the step of drawing an optical fiber from a multiple crucible apparatus, wherein one of the crucibles of the apparatus has a non-symmetrical orifice (no

The invention relates to a method of making an optical fiber and an optical fiber made in accordance with the inventive method. The method includes the step of drawing an optical fiber from a multiple crucible apparatus, wherein one of the crucibles of the apparatus has a non-symmetrical orifice (not shown). The inventive fiber has at least a core and cladding. At least one section of the inventive fiber includes an orientation element. nd the following plaining container, the first connecting line emptying into the bottom area of the following plaining container. 4. The device according to claim 1, further including a second connecting line between the two successive plaining containers, said second connecting line connected to the upper area of the upstream plaining container which empties into the bottom area of the next upstream plaining container. 5. The device according to claim 1, in which at least one of said plaining containers is designed as a horizontal channel. 6. The device according to claim 5, in which the windings of the high-frequency coil of at least one of the plaining containers designed as a skull channel having a horizontal winding axis. 7. A method for the plaining of glasses or glass-ceramics comprising the steps of: melting a plurality of substances together to thereby form a melt of glass; and then plaining in a plaining cascade consisting of two or more stages, the plaining taking place in at least one of these stages according to the skull principle with inductive heating of the melt, said inductive heating of the melt including radiating the melt with high-frequency energy. 8. The method according to claim 7, in which said plaining step takes place in the individual plaining units at temperatures in a range of 1600° C. to 2800° C. 9. The method according to claim 7, in which said plaining step takes place in skull crucibles through which the melt flows upward from below. 10. The method according to claim 7, in which said plaining step is carried out in a first stage according to the skull-principle with the melt flowing upward from below, the melt then flowing through a horizontal skull plaining channel heated with high-frequency energy in a second plaining stage. 11. The method according to claim 7, in which the melt is conducted through two series-connected plaining channels. 12. The method according to claim 7, further comprising the steps of: providing a redox plaining medium in the melt; and oxygen bubbling either during or between the individual plaining stages in order to oxidize the redox plaining medium to a higher valency and reactivate the melt for the following plaining stage. 13. The method according to claim 7, further comprising supplying an active plaining medium with plaining gas during or between the individual plaining stages. 14. The method according to claim 7, further comprising the steps of: supplying a first and second plaining material to the melt; said first and second plaining materials being different; activating said first plaining material; activating said second plaining material, whereby the release of plaining gas from the first plaining material takes place at lower temperatures than that of the second plaining material; the first plaining stage being operated in the temperature range of the maximum release of plaining gas from the first plaining material; and the second plaining stage being operated in the temperature range of the maximum release of plaining gas from the second plaining material. 15. The device according to claim 1, wherein each said plaining container is configured for promoting upward movement of gas bubbles within the glass melt. 16. The method according to claim 7, wherein said glass moves upwardly during at least one stage of plaining. 17. The method according to claim 7, wherein a first stage of plaining occurs at a different temperature than during a second subsequent stage of plaining. 18. The method according to claim 17, wherein the first stage of plaining occurs at a lower temperature than during the second subsequent stage of plaining.

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이 특허에 인용된 특허 (41) 인용/피인용 타임라인 분석

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Nice Minor L. (Newark OH), Apparatus and process for fiberizing fluoride glasses using a double crucible and the compositions produced thereby.
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Brongersma Hidde H. (Waalre NLX), Double crucible method of fabricating optical fibers.
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Titchmarsh James G. (Harlow GB2), Double crucible method of optical fiber manufacture.
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Beales Keith J. (Ipswich GB2) Duncan William J. (Ipswich GB2) Dunn Anthony G. (Woodbridge GB2) Newns George R. (Hintlesham GB2), Graded index optical fibres.
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Lentz ; deceased William P. (Addison NY by Cornelia V. Lentz ; executor), Method for making a layered glass article.
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Beales Keith J. (Ipswich GB2) Day Clive R. (Woodbridge GB2) Newns George R. (Hintlesham GB2), Method for manufacture of graded index optical fibres.
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Jochem Cornelis M. G. (Eindhoven NLX) Severin Petrus J. W. (Eindhoven NLX), Method of producing an optical fiber having a core which has a noncircular cross-section, and double crucible for use in.
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Pleibel William (Matawan NJ) Stolen Rogers H. (Rumson NJ), Polarization-preserving optical fiber.
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[미국특허] Method of centering a fiber core in a multiple-crucible method 원문보기

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