HK148894A - Lightguide coating control - Google Patents

Lightguide coating control

Info

Publication number
HK148894A
HK148894A HK148894A HK148894A HK148894A HK 148894 A HK148894 A HK 148894A HK 148894 A HK148894 A HK 148894A HK 148894 A HK148894 A HK 148894A HK 148894 A HK148894 A HK 148894A
Authority
HK
Hong Kong
Prior art keywords
coating control
lightguide
lightguide coating
control
coating
Prior art date
Application number
HK148894A
Other languages
English (en)
Inventor
Ralphe E Frazee Jr
David H Smithgall Sr
Original Assignee
At & T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by At & T Corp filed Critical At & T Corp
Publication of HK148894A publication Critical patent/HK148894A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/07—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/12—General methods of coating; Devices therefor
    • C03C25/22—Deposition from the vapour phase
    • C03C25/223—Deposition from the vapour phase by chemical vapour deposition or pyrolysis
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D5/00—Control of dimensions of material
    • G05D5/02—Control of dimensions of material of thickness, e.g. of rolled material
    • G05D5/03—Control of dimensions of material of thickness, e.g. of rolled material characterised by the use of electric means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
HK148894A 1989-02-27 1994-12-30 Lightguide coating control HK148894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/316,192 US4952226A (en) 1989-02-27 1989-02-27 Lightguide coating control

Publications (1)

Publication Number Publication Date
HK148894A true HK148894A (en) 1995-01-06

Family

ID=23227932

Family Applications (1)

Application Number Title Priority Date Filing Date
HK148894A HK148894A (en) 1989-02-27 1994-12-30 Lightguide coating control

Country Status (9)

Country Link
US (1) US4952226A (de)
EP (1) EP0385623B1 (de)
JP (1) JPH0649598B2 (de)
KR (1) KR0135515B1 (de)
CA (1) CA2005998C (de)
DE (1) DE69008220T2 (de)
DK (1) DK0385623T3 (de)
HK (1) HK148894A (de)
SG (1) SG114994G (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142228A (en) * 1989-04-24 1992-08-25 Corning Incorporated Method for statically or dynamically monitoring the thickness of electrically-conductive coatings on optical fibers
EP0611732B1 (de) * 1989-10-31 1997-10-08 Fujitsu Limited Verfahren zum Herstellen einer optischen Faservorform
US5284500A (en) * 1989-10-31 1994-02-08 Fujitsu Limited Process for fabricating an optical fiber preform
CA2034162A1 (en) * 1990-02-23 1991-08-24 Akira Inoue Method and apparatus for measuring the thickness of a coating
IT1240980B (it) * 1990-09-10 1993-12-27 Sip Apparecchiatura per la misura e il controllo dell'eccentricita' dello strato di rivestimento colorato di fibre ottiche.
JP2719050B2 (ja) * 1991-01-25 1998-02-25 株式会社フジクラ 光ファイバの炭素被膜のモニタ方法
JP2722362B2 (ja) * 1992-03-27 1998-03-04 三井金属鉱業株式会社 粒子または欠陥の大きさ情報の測定方法および装置
US5408308A (en) * 1993-01-29 1995-04-18 Corning Incorporated Method for monitoring hermetically-coated fibers
US5362962A (en) * 1993-04-16 1994-11-08 Edison Welding Institute Method and apparatus for measuring pipeline corrosion
US5443610A (en) * 1994-01-29 1995-08-22 Corning Incorporated Apparatus for controlling fiber diameter during drawing
US6314765B1 (en) 1998-10-06 2001-11-13 Alcatel Method and apparatus for controlling the shape and position of a deformable object
US6052191A (en) * 1998-10-13 2000-04-18 Northrop Grumman Corporation Coating thickness measurement system and method of measuring a coating thickness
KR100464718B1 (ko) * 2002-07-23 2005-01-06 주식회사 웅천텍스텍 발열섬유재 및 그 제조방법
KR102069088B1 (ko) * 2018-04-02 2020-01-22 양미경 탈모의 예방 또는 치료용, 또는 발모 또는 육모 촉진용 약학 또는 화장료 조성물

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082717A5 (de) * 1970-03-25 1971-12-10 Cellophane Sa
US4027977A (en) * 1975-12-17 1977-06-07 Western Electric Company, Method and apparatus for determining ratio of core radius to cladding radius in clad optical fibers
US4210431A (en) * 1978-12-15 1980-07-01 Corning Glass Works Method for making vitreous carbon coatings on glass fibers
FR2493302A1 (fr) * 1980-10-31 1982-05-07 Lignes Telegraph Telephon Procede de fabrication d'une fibre de verre et fibre recouverte d'une couche de protection de pyrographite
SU1006402A1 (ru) * 1981-06-02 1983-03-23 Предприятие П/Я Г-4461 Способ получени защитного покрыти на поверхности стекл нных изделий
JPS58140605A (ja) * 1982-01-18 1983-08-20 Koshin Kogaku:Kk 光学薄膜の膜厚制御方法
US4450333A (en) * 1982-05-28 1984-05-22 At&T Technologies, Inc. Zirconia induction furnace
DE3577730D1 (de) * 1984-03-03 1990-06-21 Stc Plc Beschichtungsverfahren.
US4735856A (en) * 1986-03-31 1988-04-05 Spectran Corporation Hermetic coatings for optical fiber and product

Also Published As

Publication number Publication date
SG114994G (en) 1994-11-25
US4952226A (en) 1990-08-28
EP0385623B1 (de) 1994-04-20
DE69008220D1 (de) 1994-05-26
KR0135515B1 (ko) 1998-04-21
JPH02267140A (ja) 1990-10-31
EP0385623A2 (de) 1990-09-05
JPH0649598B2 (ja) 1994-06-29
CA2005998A1 (en) 1990-08-27
EP0385623A3 (de) 1991-01-30
CA2005998C (en) 1995-12-26
KR900012852A (ko) 1990-09-01
DK0385623T3 (da) 1995-03-27
DE69008220T2 (de) 1994-08-04

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)