CN106019472A - Preparation process for glass-fiber light guide rod - Google Patents

Preparation process for glass-fiber light guide rod Download PDF

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Publication number
CN106019472A
CN106019472A CN201610311221.XA CN201610311221A CN106019472A CN 106019472 A CN106019472 A CN 106019472A CN 201610311221 A CN201610311221 A CN 201610311221A CN 106019472 A CN106019472 A CN 106019472A
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glass
lamp guide
optical fiber
core material
cortex
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李爱冰
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/022Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/028Drawing fibre bundles, e.g. for making fibre bundles of multifibres, image fibres
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/10Non-chemical treatment
    • C03B37/16Cutting or severing
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00Fibre product details, e.g. structure, shape
    • C03B2203/40Multifibres or fibre bundles, e.g. for making image fibres
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12035Materials
    • G02B2006/12038Glass (SiO2 based materials)

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Glass Compositions (AREA)

Abstract

The invention discloses a preparation process for a glass-fiber light guide rod. The preparation process comprises: (1), raw material selection is carried out; to be specific, a piece of core-material glass having a high refractive index and a piece of leather layer glass having a low refractive index are selected; (2), dual-crucible drawing processing is carried out; to be specific, after purification processing on the core-material glass and the leather layer glass, the processed glass is putted into a platinum dual-crucible device for melting and one-time drawing to obtain a single filament; (3), filament cutting and purification are carried out; to be specific, the single filament obtained by drawing by the dual-crucible device is cut into segments with certain lengths, and then the cut segments are purified and are packaged into a contained; (4), installation into a pipe and filament arrangement are carried out; to be specific, the clean fibers with the certain lengths are arranged in order and then are installed in an outer protection glass pipe; (5), compound drawing process is carried out to form a rod; to be specific, the glass pipe with the glass single filaments is sent into a tubular furnace by a rod conveying mechanism for heating and drawing is carried out to form a light guide rod; and (6), post processing is carried out; to be specific, the drawn light guide rod is cut with a needed length and the two end surfaces of the cut light guide rod are ground and polished to obtain a finished light guide rod. The light guide rod has high light beam transmittance and can be widely applied to fields of medical instrument and photoelectric instrument.

Description

A kind of preparation technology of glass optical fiber lamp guide
Technical field
The present invention relates to glass light guide plate preparing technical field, be specifically related to the preparation technology of a kind of glass optical fiber lamp guide.
Background technology
Glass optical fiber lamp guide is the one of the optical element that multicomponent glass optical fiber is made, microelectronics, optoelectronics and light It is Modern optical communication and the pillar of light sensing industry that son is learned.Along with device design theory and the development of fabricating technology and right The raising that device performance, integrated level and energy expenditure etc. require, the characteristic line breadth of microelectronics and opto-electronic device is own through having reached Asia Wavelength or nano-scale.Information in network service is transmitted in material, and optical fiber is acknowledged as the transmission that Nowadays communication bandwidth is maximum Medium, has attracted the concern of more and more researcher.In recent years, the micro-nano light such as nanocone, nano wire, sub-wavelength diameter optical fiber Fibre is reported in succession, advances micro-nano opto-electronic device greatly, such as Fibre Optical Sensor, fiber coupler and fiber optic splitter etc. Development.
When glass optical fiber works as sub-wavelength fiber waveguide, produce in photo-coupler, resonator cavity, sensor, super continuum light spectrum Etc. aspect have uniqueness advantage, but the research of this respect has the most just started, for this current people of new structure optical fiber Solve is the most little, a lot of job demand systematic researches and exploration.First, optical fiber structure aspect, the at present micro-nano fiber of research The substantially nano wire of single structure, does not has covering or uses empty gas and water to do covering.Realize that there is the micro-of specific function Photonic device of receiving is necessarily required to micro-nano fiber and has composite waveguide structure;Second, fiber optic materials aspect, the research of current people is right As being concentrated mainly on quasiconductor and polymeric material, and the glass micro-nano optical fiber with core/cladding structure is studied the fewest.Glass Substrate (such as phosphate, silicate and tellurate etc.) has excellent optical property, process based prediction model, photo and thermal stability And be prone to the performances such as fibroblast and many rare earth ions are had good dissolubility, the research of the most active micro-nano fiber. 3rd, the preparation method of optical fiber, the method system such as the most commonly used two step tips stretchings, chemosynthesis and conical fiber drawing Standby micro-nano fiber limited length, its biography beam transmittance of the glass optical fiber of production is not fine.
Summary of the invention
For problem above, the invention provides the preparation technology of a kind of glass optical fiber lamp guide, draw first with double crucible method Become the monofilament about diameter 380 μm with core, skin structure, then silk is cut into certain length, carries out outside ordered arrangement loading Protect in glass tubing, then the optical fibre rod of a kind of high rate being drawn into through this monofilament of tube furnace post bake, glass optical fiber is guide-lighting Rod is not owing to having filler, and it passes beam transmittance than the glass optical fiber of same specification to exceed 20%, and its product is widely used in Medical apparatus and instruments and photoelectric instrument industry, can effectively solve the problem in background technology.
To achieve these goals, the technical solution used in the present invention is as follows: the preparation technology of a kind of glass optical fiber lamp guide, Comprise the steps:
(1) raw material selects: select core material glass and the cortex glass of low-refraction of high index of refraction;
(2) double crucible method wire drawing: after the core material glass of selection and cortex glass are carried out purified treatment, puts into the double crucible of platinum by electricity Heating is under 1000-1100 degree Celsius, by core material glass and cortex glass melting, melted core material glass and cortex glass because of certainly Weight, from outflow of leting slip a remark, under the draw of the double crucible wire drawing wheel of platinum, is once drawn into monofilament;
(3) shredding purifies: the monofilament that will draw with double crucibles, cuts off into certain length, and purified treatment post package is in clean container;
(4) tubulature row silk: after clean fixed-length optical fibril ordered arrangement, loads outer protecting in glass tubing;
(5) compound wire drawing becomes rod: the glass tubing installing glass monofilament sends into heating in tube furnace by bar feeding mechanism, at 700-900 DEG C At a temperature of, by roller is drawn, it is drawn into lamp guide;
(6) post-treatment: the lamp guide that will draw, cuts into Len req, and both ends of the surface are ground polishing, has just obtained finished product guide-lighting Rod, and rod is bent certain angle, usual 60 ° to 64 °.
As a kind of preferably technical scheme of the present invention, in described step (1), the high grade of transparency answered by core material glass and cortex glass.
As the present invention a kind of preferably technical scheme, the size of the refractive index of described core material glass and cortex glass, should meet The numerical aperture of design.
As a kind of preferably technical scheme of the present invention, described core material glass and cortex glass should have same or like thermal expansion Coefficient, or the thermal coefficient of expansion of core material is slightly higher.
As a kind of preferably technical scheme of the present invention, described step (2) is once drawn into the diameter of monofilament at 380-390 μm, covering is in 6 μm-8 μm.
As a kind of preferably technical scheme of the present invention, by adding different oxide coloring at glass tubing in described step (4) Make the glass tubing of black, purple, brown different colours.
As a kind of preferably technical scheme of the present invention, in described step (5), during pull-rod, by temperature with lead Draw the adjustment of speed, obtain the lamp guide of different-diameter.
As a kind of preferably technical scheme of the present invention, in described step (6), need to heat it with alcohol burner needs sweep, Make it soften and curve required angle.
As a kind of preferably technical scheme of the present invention, in described step (6), guide-lighting former rod thinner for diameter, use lamp work It is drawn into the tapered light guides element of concentric reducer.
Beneficial effects of the present invention:
The present invention is drawn into the monofilament about diameter 380 μm with core, skin structure first with double crucible method, is then cut into necessarily by silk Length, carries out ordered arrangement and loads outer protecting in glass tubing, then through this monofilament of tube furnace post bake be drawn into a kind of high thoroughly The optical fibre rod of rate, glass optical fiber lamp guide is not owing to having filler, and it passes beam transmittance than the glass optical fiber of same specification and to exceed 20%, its product is widely used in medical apparatus and instruments and photoelectric instrument industry.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is entered Row further describes.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit Determine the present invention.
Embodiment 1:
The preparation technology of a kind of glass optical fiber lamp guide, comprises the steps:
(1) raw material selects: select core material glass and the cortex glass of low-refraction of high index of refraction;
(2) double crucible method wire drawing: after the core material glass of selection and cortex glass are carried out purified treatment, puts into the double crucible of platinum by electricity Heating is under 1000 degrees Celsius, by core material glass and cortex glass melting, melted core material glass and cortex glass because deadweight is from leakage Mouth flows out, and under the draw of the double crucible wire drawing wheel of platinum, is once drawn into monofilament;
(3) shredding purifies: the monofilament that will draw with double crucibles, cuts off into certain length, and purified treatment post package is in clean container;
(4) tubulature row silk: after clean fixed-length optical fibril ordered arrangement, loads outer protecting in glass tubing;
(5) compound wire drawing becomes rod: the glass tubing installing glass monofilament sends into heating in tube furnace by bar feeding mechanism, 700 DEG C of temperature Under, by roller is drawn, it is drawn into lamp guide;
(6) post-treatment: the lamp guide that will draw, cuts into Len req, and both ends of the surface are ground polishing, has just obtained finished product guide-lighting Rod, and rod is bent certain angle, usual 60 °.
Wherein in step (1), the high grade of transparency answered by core material glass and cortex glass;Described core material glass and the refractive index of cortex glass Size, the numerical aperture of design should be met;Described core material glass and cortex glass should have same or like thermal coefficient of expansion, Or the thermal coefficient of expansion of core material is slightly higher.
Wherein once being drawn into the diameter of monofilament in step (2) in 380 μm, covering is in 6 μm m.
Wherein by making the glass of black, purple, brown different colours at the different oxide coloring of glass tubing addition in step (4) Pipe.
Wherein in step (5), during pull-rod, by the adjustment to temperature and pulling speed, obtain leading of different-diameter Optical wand.
Wherein in step (6), need to heat it with alcohol burner needs sweep so that it is softens and curves required angle.
Wherein in step (6), guide-lighting former rod thinner for diameter, the tapered light guides element of concentric reducer it is drawn into by lamp work.
Embodiment 2
The preparation technology of a kind of glass optical fiber lamp guide, comprises the steps:
(1) raw material selects: select core material glass and the cortex glass of low-refraction of high index of refraction;
(2) double crucible method wire drawing: after the core material glass of selection and cortex glass are carried out purified treatment, puts into the double crucible of platinum by electricity Heating is under 1050 degrees Celsius, by core material glass and cortex glass melting, melted core material glass and cortex glass because deadweight is from leakage Mouth flows out, and under the draw of the double crucible wire drawing wheel of platinum, is once drawn into monofilament;
(3) shredding purifies: the monofilament that will draw with double crucibles, cuts off into certain length, and purified treatment post package is in clean container;
(4) tubulature row silk: after clean fixed-length optical fibril ordered arrangement, loads outer protecting in glass tubing;
(5) compound wire drawing becomes rod: the glass tubing installing glass monofilament sends into heating in tube furnace by bar feeding mechanism, 800 DEG C of temperature Under, by roller is drawn, it is drawn into lamp guide;
(6) post-treatment: the lamp guide that will draw, cuts into Len req, and both ends of the surface are ground polishing, has just obtained finished product guide-lighting Rod, and rod is bent certain angle, usual 62 °.
Wherein in step (1), the high grade of transparency answered by core material glass and cortex glass;Described core material glass and the refractive index of cortex glass Size, the numerical aperture of design should be met;Described core material glass and cortex glass should have same or like thermal coefficient of expansion, Or the thermal coefficient of expansion of core material is slightly higher.
Wherein once being drawn into the diameter of monofilament in step (2) in 385 μm, covering is in 7 μm.
Wherein by making the glass of black, purple, brown different colours at the different oxide coloring of glass tubing addition in step (4) Pipe.
Wherein in step (5), during pull-rod, by the adjustment to temperature and pulling speed, obtain leading of different-diameter Optical wand.
Wherein in step (6), need to heat it with alcohol burner needs sweep so that it is softens and curves required angle.
Wherein in step (6), guide-lighting former rod thinner for diameter, the tapered light guides element of concentric reducer it is drawn into by lamp work.
Embodiment 3
The preparation technology of a kind of glass optical fiber lamp guide, comprises the steps:
(1) raw material selects: select core material glass and the cortex glass of low-refraction of high index of refraction;
(2) double crucible method wire drawing: after the core material glass of selection and cortex glass are carried out purified treatment, puts into the double crucible of platinum by electricity Heat at 1100 degrees celsius, by core material glass and cortex glass melting, melted core material glass and cortex glass because deadweight is from leakage Mouth flows out, and under the draw of the double crucible wire drawing wheel of platinum, is once drawn into monofilament;
(3) shredding purifies: the monofilament that will draw with double crucibles, cuts off into certain length, and purified treatment post package is in clean container;
(4) tubulature row silk: after clean fixed-length optical fibril ordered arrangement, loads outer protecting in glass tubing;
(5) compound wire drawing becomes rod: the glass tubing installing glass monofilament sends into heating in tube furnace by bar feeding mechanism, 900 DEG C of temperature Under, by roller is drawn, it is drawn into lamp guide;
(6) post-treatment: the lamp guide that will draw, cuts into Len req, and both ends of the surface are ground polishing, has just obtained finished product guide-lighting Rod, and rod is bent certain angle, usual 64 °.
Wherein in step (1), the high grade of transparency answered by core material glass and cortex glass;Described core material glass and the refractive index of cortex glass Size, the numerical aperture of design should be met;Described core material glass and cortex glass should have same or like thermal coefficient of expansion, Or the thermal coefficient of expansion of core material is slightly higher.
Wherein once being drawn into the diameter of monofilament in step (2) in 390 μm, covering is in 8 μm.
Wherein by making the glass of black, purple, brown different colours at the different oxide coloring of glass tubing addition in step (4) Pipe.
Wherein in step (5), during pull-rod, by the adjustment to temperature and pulling speed, obtain leading of different-diameter Optical wand.
Wherein in step (6), need to heat it with alcohol burner needs sweep so that it is softens and curves required angle.
Wherein in step (6), guide-lighting former rod thinner for diameter, the tapered light guides element of concentric reducer it is drawn into by lamp work.
Concrete, the performance of lamp guide prepared by this preparation technology is as follows:
1, optical property
(a) transmitance
In lamp guide, hundreds of to the thousand of mutual clinkering of monofilament becomes together, it is not necessary to epoxy resin bonds, and between fiber, gap is the least, Therefore its light guide transmitance made by transmitance ratio flexible optical fibre is high, and the loss of lamp guide is that cortex glass is impermeable The reasons such as light, both ends of the surface reflection loss, and some nonidealities.
By actually measured length 85mm of integration ball, diameter 8mm lamp guide, its white light transmitance > 75%, major part can Reach 80%.
For improving the transmitance of lamp guide, it should the cortex controlling monofilament can not be blocked up, is normally controlled in about 6~8 μm, In shredding, to avoid polluting during row's silk, control multifilament technique well, to reduce dark silk.
Both ends of the surface at lamp guide plate last layer anti-reflection film, can improve the transmitance of lamp guide about 8%.
(b) resolution
Optical fiber ordered arrangement in lamp guide, can transmit image clearly, its resolution typically 2.5~8 lines right/mm.
2, mechanical performance
Lamp guide shell is glass tubing, and centre is formed by the mutual clinkering of ultimate fibre, is no longer flexible, thus easily clashing and breaking, during use Should handle with care.For improving the resisting breakage intensity of lamp guide, can be by lamp guide two stainless steel protection, intermediate bent section Available silicone rubber tube thermal contraction is divided to protect.
3, temperature tolerance
Lamp guide need not epoxy encapsulation solidification, and its heatproof index depends on the performance of glass, and usual heatproof index is more than 400 DEG C.
4, resistance to acids and bases
Lamp guide is acidproof, alkaline-resisting, has higher chemical stability, it is adaptable to various environment, when it is contaminated, can be used for wine Essence, water equal solvent carry out wiping, cleaning.
Test such as following table to embodiment 1 to embodiment 3:
Test event Resolution (line right/mm) Breaking point (Mpa) Temperature tolerance (DEG C)
Embodiment 1 7.5 154 512
Embodiment 2 7.2 164 503
Embodiment 3 7.3 158 521
The application of the present invention:
(1) dental photocuring machine lamp guide is that the light of the particular wave sent by light source is irradiated on photosensitive resin, is allowed to solidify rapidly, For repair teeth, former producer's many employings epoxy encapsulation optical fiber light guide in stainless steel tube, light guide transmitance The highest, therefore intensity of illumination is low, and composite resin curing rate is slow, and bonding loosely, using effect is not ideal.In recent years Use optical fiber light conducting bar, because its transmitance is much larger than light guide, the most not only can shorten irradiation time, and the illumination degree of depth is deep, Resin fastness is good, is received by the market very much.The lamp guide that existing domestic photo solidification machine producer all uses us to produce, product specification Diameter from 6~13mm, a length of 74~100mm.Semiconductor laser lamp guide is the new varieties used in recent years, and it passes through The laser of wavelength 790~830 μm is irradiated to lesion portion by lamp guide, is used for treating dentin hypersensitiveness, aphtha easily occurs, and three The toothache that after fork neuralgia, and solidification resin fill, tissue reaction after pulp sensitivity and root-canal filling causes, according to Shanghai, wide The ground customers' responsiveness such as state, using effect is the best.
(2) in terms of photoelectric instrument, lamp guide by optical fiber ordered arrangement draw form, image can be transmitted, resolution be 2.5~ 8 lines are right/millimeter, and the light cone made can make optical signal increase or weaken, and matching with front stage instrument can be used for monitoring, and signal The aspects such as transmission.
The present invention is drawn into the monofilament about diameter 380 μm with core, skin structure first with double crucible method, is then cut by silk Become certain length, carry out ordered arrangement and load outer protecting in glass tubing, then be drawn into through this monofilament of tube furnace post bake Planting the optical fibre rod of high rate, glass optical fiber lamp guide is not owing to having filler, and it passes beam transmittance than the glass optical fiber of same specification Exceeding 20%, its product is widely used in medical apparatus and instruments and photoelectric instrument industry.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and Any amendment, equivalent and the improvement etc. made within principle, should be included within the scope of the present invention.

Claims (9)

1.A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that comprise the steps:
(1) raw material selects: select core material glass and the cortex glass of low-refraction of high index of refraction;
(2) double crucible method wire drawing: after the core material glass of selection and cortex glass are carried out purified treatment, put into the double crucible of platinum and pass through electrical heating under 1000-1100 degree Celsius, by core material glass and cortex glass melting, melted core material glass and cortex glass are because deadweight is from outflow of leting slip a remark, under the draw of the double crucible wire drawing wheel of platinum, once it is drawn into monofilament;
(3) shredding purifies: the monofilament that will draw with double crucibles, cuts off into certain length, and purified treatment post package is in clean container;
(4) tubulature row silk: after clean fixed-length optical fibril ordered arrangement, loads outer protecting in glass tubing;
(5) compound wire drawing becomes rod: the glass tubing installing glass monofilament sends into heating in tube furnace by bar feeding mechanism, at a temperature of 700-900 DEG C, by drawing roller, is drawn into lamp guide;
(6) post-treatment: the lamp guide that will draw, cuts into Len req, and both ends of the surface are ground polishing, just obtained finished product lamp guide, and rod bends certain angle, usual 60 ° to 64 °.
2.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that in described step (1), the high grade of transparency answered by core material glass and cortex glass.
3.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that the size of the refractive index of described core material glass and cortex glass, the numerical aperture of design should be met.
4.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that described core material glass and cortex glass should have same or like thermal coefficient of expansion, or the thermal coefficient of expansion of core material is slightly higher.
5.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that being once drawn into the diameter of monofilament in described step (2) in 380-390 μm, covering is in 6 μm-8 μm.
6.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that by making the glass tubing of black, purple, brown different colours at the different oxide coloring of glass tubing addition in described step (4).
7.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that in described step (5), during pull-rod, by the adjustment to temperature and pulling speed, obtain the lamp guide of different-diameter.
8.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that in described step (6), need to heat it with alcohol burner needs sweep so that it is softens and curves required angle.
9.According to claimDescribed in 1A kind of preparation technology of glass optical fiber lamp guide, it is characterised in that in described step (6), guide-lighting former rod thinner for diameter, the tapered light guides element of concentric reducer it is drawn into by lamp work.
CN201610311221.XA 2016-05-11 2016-05-11 Preparation process for glass-fiber light guide rod Withdrawn CN106019472A (en)

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CN106772790A (en) * 2016-12-09 2017-05-31 长飞光纤光缆股份有限公司 A kind of high efficiency upper thread upconversion fiber passes the preparation method of light beam
CN107253820A (en) * 2017-07-10 2017-10-17 北京工业大学 The automatic wiredrawing method and apparatus that method prepares glass fiber is oriented to using crucible bottom perforate
CN109111098A (en) * 2018-09-19 2019-01-01 四川天莱玻璃纤维有限公司 It is a kind of to do the technique that pot realizes glass fiber wire drawing to high alkali glass using platinum
CN109143459A (en) * 2018-09-04 2019-01-04 同济大学 A kind of covering method of rare earth ion doped low temperature garnet crystal bar
CN110683754A (en) * 2019-11-18 2020-01-14 淮安信息职业技术学院 Compound stretching glass fiber drawing device
CN110709775A (en) * 2017-07-12 2020-01-17 应用材料公司 Method for producing high refractive index waveguide
CN111592217A (en) * 2020-06-17 2020-08-28 南京威斯顿光纤科技有限公司 Preparation method of high-resolution ultrafine optical fiber image transmission bundle
CN115353287A (en) * 2022-09-09 2022-11-18 中国建筑材料科学研究总院有限公司 Phi 40mm large-size optical fiber image inverter and surface processing method and application thereof

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CN109143459A (en) * 2018-09-04 2019-01-04 同济大学 A kind of covering method of rare earth ion doped low temperature garnet crystal bar
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