CN105293902B - Edge-cladding glass and optical fiber image guide device and preparation method thereof - Google Patents
Edge-cladding glass and optical fiber image guide device and preparation method thereof Download PDFInfo
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- CN105293902B CN105293902B CN201510802483.1A CN201510802483A CN105293902B CN 105293902 B CN105293902 B CN 105293902B CN 201510802483 A CN201510802483 A CN 201510802483A CN 105293902 B CN105293902 B CN 105293902B
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Abstract
The invention discloses a kind of edge-cladding glass and optical fiber image guide device and preparation method thereof, it is related to optical field fiber, solves the problems, such as that optical fiber image guide device production cost is higher.The edge-cladding glass raw material of the optical fiber image guide device of the present invention is made up of the component of following weight/mass percentage composition：SiO260% 75%, B2O37% 16%, Al2O30.5% 4.5%, K2O 5% 10%, Na2O 4% 8%, CaO and/or MgO 1% 3%, Li2O 0.2% 1%, CaF20.2% 1%.Replaced partly being not required in optical fiber image guide device using the edge-cladding glass of the present invention with passing production cost that optical fiber image guide device as function and the higher fiber optic materials of cost, can be reduced.
Description
Technical field
The present invention relates to fiber optic technology field, more particularly to a kind of edge-cladding glass and optical fiber image guide device and its
Preparation method.
Background technology
Optical fiber is a kind of light conduction instrument, and optical fiber image guide device (including fibre faceplate, optical fiber image inverter,
Optical fiber cone etc.) it is the high resolution image image guide device formed by tens million of optical fibers arranged in parallel through fusion pressure, light
Learning fiber image guide device has simple in construction, and small volume, numerical aperture is big, and optical transmission efficiency is high, and interstage coupling loss is small, passes as clear
It is clear, true, optically with zero thickness, edge can be improved as the features such as matter.Most typical application is as low-light image intensifying
The optics input of device, output window, play an important role to the quality for improving image device, are widely used in military, punishment
Detect, space flight, the various cathode-ray tubes in the field such as medical treatment, pick-up tube, CCD couplings, medicine equipment display screen and fine definition
Television imagery is needed with other in instrument and equipment of transmission image, is the high-tech tip production of current century opto-electronic industry
Product.
Core material in optical fiber image guide device preparation process is due to the high frit of refractive index to be used, and in recent years
As the gradual of environmental protection ideas gos deep into the world, some heavy metal element oxides such as As2O3、Sb2O3, BaO, PbO, CdO etc. by
Gradually it is prohibited from using, so core material glass must use rare earth oxide such as La2O3、Nb2O5、Y2O3To improve the refraction of glass
Rate, and the refractive index of the core material glass of optical fiber image guide device is improved, the effective numerical aperture of glass can be not only improved, and
And the performance of fibre faceplate, optical fiber image inverter, optical fiber cone etc. can be improved well, and generally optical fiber image guide device is used
Core material glass composition middle rare earth account for 30%-50% mass percent, the rare earth oxide of this higher proportion
Use the cost of raw material for substantially increasing optical fiber image guide device.
Optical fiber image guide device is due to the needs of manufacturing process and follow-up tubulation assembling process, from semi-finished product blanket to most
Finally finished, some material without pass as function but optical fiber image guide device is shielded in the fabrication process or
Connection function is played in follow-up assembling, such as the image inverter of model 21.85, its finished product excircle dimension is 21.85mm, semi-finished product blanket
Excircle dimension is about 26.85mm, wherein, the outer round shape for being about 2.5mm by thickness in the follow-up cold working process of semi-finished product blanket
Material removal falls to form final products, and this partial optical fibrous material being ground accounts for 33.8% matter in above-mentioned blanket
Ratio is measured, causes the waste of raw material；And for example model 40/13- fibre faceplate, finished product excircle dimension are about Φ 50.6mm,
Effectively pass as size is about Φ 43.25mm, the outermost layer thickness about 3.68mm of optical fibre face plate is sealing part, be used for and its
He assembles element, and the material of above-mentioned sealing part is without passing as function, the partial optical fibrous material account for 26.7%
Mass ratio, it also result in the waste of raw material.From the foregoing, due to having used rare earth in the core material glass of fiber optic materials
Oxide and improve its cost, now again because optical fiber image guide device because of its technique and follow-up assembling reason has a part
Need not have and pass as the fiber optic materials of function, therefore cause the waste of fiber optic materials, add optical fiber biography
The production cost of element, generate serious economic loss.
The content of the invention
In view of this, the embodiments of the invention provide a kind of edge-cladding glass and optical fiber image guide device and its preparation side
Method, main purpose are to reduce the production cost of optical fiber image guide device.
To reach above-mentioned purpose, invention broadly provides following technical scheme：
On the one hand, the invention provides a kind of edge-cladding glass, its raw material to be made up of the component of following weight/mass percentage composition：
SiO260%-75%, B2O37%-16%, Al2O30.5%-4.5%, K2O 5%-10%, Na2O 4%-
8%, CaO and/or MgO 1%-3%, Li2O 0.2%-1%, CaF20.2%-1%.
Preferably, the raw material of the edge-cladding glass is made up of the component of following weight/mass percentage composition：SiO265%-
70%, B2O39%-12%, Al2O32%-4.5%, K2O 5%-8%, Na2O 5%-7%, CaO and/or MgO 1%-
3%, Li2O 1%, CaF21%.
Preferably, the coefficient of expansion of the edge-cladding glass under the conditions of 20 DEG C -300 DEG C is 74 × 10-7-84×10-71/
℃；The softening temperature of the edge-cladding glass is 580 DEG C -630 DEG C.
On the other hand, the invention provides the preparation method of above-mentioned edge-cladding glass, glass batch is prepared by composition of raw materials,
The glass batch is fused into glass metal, the glass metal is cast in the heat-resisting steel mold by preheating, the glass
Glass blocks is obtained after the solidification of glass liquid, the glass blocks is annealed, cooled down and is stripped, obtains edge-cladding glass.
Preferably, the fusing is carried out in glass furnace, the temperature of the fusing is 1350 DEG C -1450 DEG C,
5-8 hours are incubated after fusing, during insulation carries out 3 mechanical agitations to the glass metal；The preheating temperature of the heat-resisting steel mold
Spend for 450 DEG C -650 DEG C；The annealing is carried out in Muffle furnace, and the temperature of the annealing is 550 DEG C -650 DEG C.
Another aspect, the invention provides a kind of preparation method of optical fiber image guide device, including arrange plate process and melt
Molded process, optical fiber pre-melt is obtained by arranging plate, the optical fiber pre-melt includes optical fiber image guide device
The side surface of the optical fiber image guide device body is wrapped to form surrounding layer by body and bound edge, the bound edge；The bound edge
Material be the edge-cladding glass described in claim 1；To be had after optical fiber pre-melt fusion pressure shaping and cold working
There is the optical fiber image guide device of bound edge.
Preferably, the coefficient of expansion of the optical fiber silk under the conditions of 20 DEG C -300 DEG C is 74 × 10-7-84×10-71/
℃。
Preferably, the optical fiber image guide device body is positive six prismsby, the optical fiber pre-melt is positive six
Prism；The optical fiber pre-melt is the glass obtained by the edge-cladding glass after cutting, surface grinding and polishing
Glass piece is close to the side surface of the optical fiber image guide device body and obtained, or the optical fiber pre-melt is by described
The glass fiber that edge-cladding glass is polished by cutting, surface and obtained after being drawn into silk is arranged in the optical fiber image guide device sheet
The side surface of body and obtain；The string diameter of the glass fiber is identical with the filametntary string diameter of secondary optics.
Another aspect, the invention provides a kind of optical fiber image guide device, the optical fiber image guide device includes light
Fiber image guide device body and bound edge are learned, the side surface of the optical fiber image guide device body is wrapped to form outer by the bound edge
Covering.
Preferably, the optical fiber image guide device includes optical fiber image guide device body and bound edge, the bound edge
The side surface of the optical fiber image guide device body is wrapped to form surrounding layer；The material of the bound edge is claim 1 institute
The edge-cladding glass stated.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention for optical fiber image guide device in its manufacturing process and follow-up tubulation assembling process, exist part without
Need to have and pass as function and the higher fiber optic materials of production cost and produce the technical problem of waste of raw materials, utility
Preferable and lower-cost edge-cladding glass replaces above-mentioned part to be not required to tool passing as function and the higher fiber optic materials of cost, from
And the technical purpose for reducing optical fiber image guide device production cost is reached.
Brief description of the drawings
Fig. 1 is optical fiber pre-melt 1；
Fig. 2 is optical fiber pre-melt 2.
Reference：1. optical fiber image guide device body, 2. sheet glass, 3. glass fiber.
Embodiment
Be further illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below with compared with
Good embodiment, to embodiment, technical scheme, feature and its effect according to the present patent application, describe in detail as after.Under
State it is bright in multiple embodiments in special characteristic, structure or feature can be combined by any suitable form.
Embodiment 1
Accurately weigh the following raw material：SiO24993g, B2O31149g, Al2O3147g, K2O 530.8g, Na2O
322.7g, CaO 268g, MgO 124g, Li2O 167g, CaF264g；As2O325g；
By above-mentioned raw materials be sufficiently mixed and grind uniformly after obtain glass batch；Above-mentioned glass batch is put into platinum
In crucible, then platinum crucible is placed in glass furnace and melted, 1420 DEG C of fusion temperature, be incubated 6 hours after fusing, soak
Between 3 mechanical agitations are carried out to glass metal to improve the refining quality of glass metal and clear quality；
The glass metal of fusing is cast in the U-shaped heat-resisting steel mold by 500 DEG C of preheatings, then the glass after solidification is tried
Sample is moved in 550 DEG C of Muffle furnace and annealed, and insulation annealing closed electric furnace after 3 hours, then furnace cooling Temperature fall
Cuboid glass blocks is obtained to room temperature, the cuboid glass blocks is edge-cladding glass；Meanwhile then prepare edge-cladding glass with above-mentioned
Glass metal cast an a diameter of 8mm, length be 60mm glass bar product for performance test, by glass bar product
Test, obtain edge-cladding glass the coefficient of expansion be 82 × 10-71/ DEG C, softening temperature (Tf) is about 626 DEG C.
Embodiment 2
Accurately weigh the following raw material：SiO25409g, B2O31077g, Al2O349g, K2O 425g, Na2O 403g, CaO
178g, MgO 124g, Li2O 167g, CaF264g；As2O325g；
By above-mentioned raw materials be sufficiently mixed and grind uniformly after obtain glass batch；Above-mentioned glass batch is put into platinum
In crucible, then platinum crucible is placed in glass furnace and melted, 1450 DEG C of fusion temperature, be incubated 8 hours after fusing, soak
Between 3 mechanical agitations are carried out to glass metal to improve the refining quality of glass metal and clear quality；
The glass metal of fusing is cast in the U-shaped heat-resisting steel mold by 500 DEG C of preheatings, then the glass after solidification is tried
Sample is moved in 550 DEG C of Muffle furnace and annealed, and insulation annealing closed electric furnace after 3 hours, then furnace cooling Temperature fall
Cuboid glass blocks is obtained to room temperature, the cuboid glass blocks is edge-cladding glass；Meanwhile then prepare edge-cladding glass with above-mentioned
Glass metal cast an a diameter of 8mm, length be 60mm glass bar product for performance test, by glass bar product
Test, obtain edge-cladding glass the coefficient of expansion be 79 × 10-71/ DEG C, softening temperature (Tf) is about 624 DEG C.
Embodiment 3
Accurately weigh the following raw material：SiO25825g, B2O3862g, Al2O398g, K2O 372g, Na2O 484g, CaO
89g, Li2O 34g, CaF232g；As2O325g；
By above-mentioned raw materials be sufficiently mixed and grind uniformly after obtain glass batch；Above-mentioned glass batch is put into platinum
In crucible, then platinum crucible is placed in glass furnace and melted, 1400 DEG C of fusion temperature, be incubated 6 hours after fusing, soak
Between 3 mechanical agitations are carried out to glass metal to improve the refining quality of glass metal and clear quality；
The glass metal of fusing is cast in the mould of the hexa-prism by 520 DEG C of preheatings, the mould of above-mentioned hexa-prism
Tool is made up of two V-type modules, then the glass specimen after solidification is moved in 550 DEG C of Muffle furnace and annealed, and insulation is moved back
Fire closed electric furnace after 3 hours, then furnace cooling Temperature fall obtains the glass bar of hexa-prism, the hexa-prism to room temperature
Glass bar be edge-cladding glass；Meanwhile then the glass metal for preparing edge-cladding glass with above-mentioned cast an a diameter of 8mm, length
For 60mm glass bar product for performance test, by the test to glass bar product, obtain the coefficient of expansion of edge-cladding glass
For 78 × 10-71/ DEG C, softening temperature (Tf) is about 629 DEG C.
Embodiment 4
Accurately weigh the following raw material：SiO26241g, B2O3646g, Al2O349g, K2O 265g, Na2O 565g, CaO
89g, MgO 124g；Li2O 34g, CaF232g；As2O325g；
By above-mentioned raw materials be sufficiently mixed and grind uniformly after obtain glass batch；Above-mentioned glass batch is put into platinum
In crucible, then platinum crucible is placed in glass furnace and melted, 1390 DEG C of fusion temperature, be incubated 6 hours after fusing, soak
Between 3 mechanical agitations are carried out to glass metal to improve the refining quality of glass metal and clear quality；
The glass metal of fusing is cast in the mould of the hexa-prism by 520 DEG C of preheatings, the mould of above-mentioned hexa-prism
Tool is made up of two V-type modules, then the glass specimen after solidification is moved in 550 DEG C of Muffle furnace and annealed, and insulation is moved back
Fire closed electric furnace after 3 hours, then furnace cooling Temperature fall obtains the glass bar of hexagonal columnar, the hexa-prism to room temperature
Glass bar be edge-cladding glass；Meanwhile then the glass metal for preparing edge-cladding glass with above-mentioned cast an a diameter of 8mm, length
For 60mm glass bar product for performance test, by the test to glass bar product, obtain the coefficient of expansion of edge-cladding glass
For 76 × 10-71/ DEG C, softening temperature (Tf) is about 620 DEG C.
The process that prior art prepares optical fiber image guide device includes preparation raw material, draws compound optical fiber silk, row
Technique etc. is reversed in plate, fusion pressure shaping, cold working, light cone stretching；Optical fiber image guide device is obtained after row's plate process terminates
Semi-finished product, the optical fiber biography that the embodiment of the present invention is chosen four parts of above-mentioned semi-finished product of identical as the embodiment of the present invention and tested
Element body；The embodiment of the present invention is only fine to optics from the optical fiber image guide device body 1 for being related to technical solution of the present invention
The preparation process for tieing up image guide device 2 carries out description of test.
Embodiment 5
Optical fiber silk forms optical fiber image guide device body 1 after secondary wire drawing side by side plate, and optical fiber passes picture
Component body 1 is the hexahedron that cross section is regular hexagon, measures the size of a rectangle side surface of the hexahedron, a length of
120mm, wide 17.61mm, the length and wide all same of six rectangle side surfaces；
The edge-cladding glass prepared to embodiment 1, i.e., the glass blocks of cuboid is cut, surface grinding and polishing
After obtain ten length of a film 120mm, wide 17.61mm, thickness is 3mm sheet glass 2；
Choose six sheets 2 and be close to six side surfaces of optical fiber image guide device body 1 respectively, then with thin
Copper wire fixes six sheets 2, obtains optical fiber pre-melt, as shown in Figure 1；Optical fiber is passed picture by six sheets 2
The side surface of component body 1 is wrapped up and forms surrounding layer, and surrounding layer forms bag to the side surface of optical fiber image guide device body 1
Enclose the protection of formula；Above-mentioned optical fiber pre-melt is loaded in fusion pressure mould and founded, by founding sheet glass 2 and optics
The fusion of fiber image guide device body 1 is together, the optical fiber image guide device with edge-cladding glass to be obtained after fusion pressure is molded
Blank flat section；Optical fiber image guide device will be obtained after the blank flat section cold working of above-mentioned optical fiber image guide device；Also may be used
Optical fiber image guide device is further carried out to light cone stretching or reverses means producing another optical fiber image guide device；Most
Afterwards by performance detection, the qualified optical fiber image guide device with bound edge of performance is obtained.
Embodiment 6
The difference of embodiment 6 and embodiment 5 is that the edge-cladding glass used in embodiment 6 is bag prepared by embodiment 2
Side glass, optical fiber pre-melt is obtained, as shown in Figure 1；Obtain having the optical fiber of bound edge to pass after fusion pressure is molded again
Element.
Embodiment 7
It is 1mm that measurement, which obtains the filametntary string diameter of secondary optics,；The edge-cladding glass prepared to embodiment 3, i.e., by six prisms
The glass bar of shape is cut, after the polishing of surface, then carries out the drawing of thin glass yarn, the string diameter and two of the glass fiber 3 drawn out
The string diameter of secondary optical fiber silk is identical；String diameter herein refers to that relative in the regular hexagonal cross section of glass fiber 3 two are parallel
Vertical range between side is 1mm；
By glass fiber 3 and secondary optics filament, arranging plate obtains optical fiber image guide device body 1 simultaneously, glass fiber 3 is tight
The close side surface for being arranged in optical fiber image guide device body 1, obtains optical fiber pre-melt, as shown in Figure 2；Glass fiber 3
The outer surface of optical fiber image guide device body 1 is wrapped up and forms surrounding layer, surrounding layer is to optical fiber image guide device body 1
Form the protection of enclosed；Above-mentioned optical fiber pre-melt is loaded in fusion pressure mould and founded, by founding glass fiber 3
It is to obtain having the optical fiber of edge-cladding glass to pass after fusion pressure is molded together with the fusion of optical fiber image guide device body 1
The blank flat section of element；Optical fiber will be obtained after the blank flat section cold working of above-mentioned optical fiber image guide device and passes pixel
Part；Optical fiber image guide device also can further be carried out to light cone stretching or reverse means producing another optical fiber biography picture
Element；Finally pass through performance detection, obtain the qualified optical fiber image guide device with bound edge of performance.
Embodiment 8
The difference of embodiment 8 and embodiment 7 is that the edge-cladding glass used in embodiment 8 is bag prepared by embodiment 4
Side glass, obtain the optical fiber image guide device with bound edge.
Pass through the coefficient of expansion and softening temperature of the testing example 1-4 edge-cladding glass prepared, it can be seen that the present invention is implemented
The coefficient of expansion of four kinds of edge-cladding glass prepared by example is in 76 × 10-7-82×10-7Between, existing most of optical fiber passes
The coefficient of expansion of element is in 74 × 10-7-84×10-7Between, optical fiber image guide device used in embodiment 5-8
The coefficient of expansion is also at 74 × 10-7-84×10-7Between；It follows that the edge-cladding glass prepared using 1-4 of the embodiment of the present invention
The coefficient of expansion and most of optics image guide device matched expansion coefficient, can actually meet requirement.
The each component role of edge-cladding glass is as follows in the embodiment of the present invention：
SiO2It is the main body that glass forms skeleton, is the composition to be played a major role in glass skeleton；SiO2Mass percent
For 60%-75%；
B2O3And network former, and the composition of glass skeleton is formed, while be a kind of reduction glass smelting again
The cosolvent of viscosity.Boron oxygen triangle body [BO3] and boron oxygen tetrahedron [BO4] are structural component, and boron may be with different conditions
Triangle body [BO3] or boron oxygen tetrahedron [BO4] are present, and in high temperature melting condition, are generally more difficult to form boron oxygen tetrahedron, and only
It can be deposited in a manner of trihedral, but in low temperature, B3+, which has, under certain condition captures free oxygen and form tetrahedral trend, makes
Close structure and the low temperature viscosity for improving glass, but because it has the spy that high temperature reduces glass viscosity and low temperature improves glass viscosity
Property, and the main component of glass refraction is reduced, thus determine that its content range is smaller, B2O3Mass percent be
10-16%；
Al2O3And network former, a small amount of Al2O3In the presence of, probably all with Al2O3Into network and SiO2One
Rise and form skeleton, it can absorb monovalence or bivalent positive ion to keep balancing, and then improve the chemical stability of glass；
CaO is glass structure network modifying oxide；
K2O and Na2O is that network changes agent, and R+ ions can destroy Si-O networks, be broken oxygen bridge, so as to occur non-bridging oxygen from
Son, substantially reduce glass viscosity, be advantageous to glass founds shaping；The coefficient of expansion of glass is adjusted using boron abnormality simultaneously,
With the coefficient of expansion of adaptive optics fibre element.
The embodiment of the present invention according to the property of cladding glass each component, by adjust in edge-cladding glass raw material each component and its
Content, with reference to the preparation technology of optical fiber image guide device, reasonably edge-cladding glass is founded in optical fiber image guide device sheet
The side surface of body 1, obtain the optical fiber image guide device with edge-cladding glass；Because the coefficient of expansion and optics of edge-cladding glass are fine
Tie up the matched expansion coefficient of image guide device and the softening temperature of suitable edge-cladding glass so that edge-cladding glass and optical fiber
Image guide device can meet following process requirement as an entirety；Meanwhile above-mentioned edge-cladding glass is fine to optics in actual fabrication
Tie up the endoplasm of image guide device and distort to have and significantly improve, therefore also improve the performance of optical fiber image guide device；Its
In, as the bound edge material of optical fiber image guide device, its coefficient of expansion and softening temperature are both needed to the expansion with optical fiber silk
Coefficient matches, occur being broken when carrying out subsequent manufacturing processes to avoid the occurrence of bound edge material and optical fiber silk after fusion or
The problem of usability is poor.
To realize the side surface that edge-cladding glass is wrapped in optical fiber image guide device body 1, edge-cladding glass can be prepared
Into sheet glass, glass fiber or glass tube；Wherein, the size of sheet glass need to be with the side surface of optical fiber image guide device body 1
The size of any one square face is consistent, and the string diameter of glass fiber need to be consistent with the filametntary string diameter of secondary optics, glass tube one
Overall, its size need to match with the overall dimensions of fibre optic element body 1, so as to which optical fiber image guide device body 1 is whole
Body is directly inserted in glass tube；For example, need four block size identical sheet glass in the optical fiber image guide device body 1 of tetragonal body
2 are used as bound edge, need six in the optical fiber image guide device body 1 of positive six prismsby, eight prisms need eight etc., sheet glass
2 number can select according to the true form of optical fiber image guide device body 1, and the thickness of sheet glass 2 can be according to optical fiber
The different version types of image guide device body 1 are designed；The side surface of optical fiber image guide device body 1 is entered using sheet glass 2
Row protection；Similarly, optical fiber image guide device body 1 and glass fiber 3 are fused, optical fiber passed using glass fiber 3
Element body 1 forms surrounding layer protection；Wherein, optical fiber image guide device body 1 have two relative input end faces with
Output end face and the side surface of connection input end face and output end face；Signified side surface refers both to optics fibre in the embodiment of the present invention
Tie up the periphery of the above-mentioned side surface, i.e. optical fiber image guide device body 1 of image guide device body 1；For example, optical fiber passes picture
Component body 1 is positive six prismsby, and it has the rectangle side surface of six identical sizes, six rectangle side surfaces and optics
The hexagonal cross-section of fiber image guide device body 1 is perpendicular；Edge-cladding glass is arranged at optical fiber image guide device body 1
The mode of side surface is specifically by taking the optical fiber image guide device body 1 in positive six prismsby as an example, optical fiber image guide device body 1
With six rectangular side surfaces, the face of sheet glass is close to the rectangular side table of optical fiber image guide device body 1
On face, the length and width of glass sheet surface are consistent with width with the length in oblong appearance face respectively, adhere on six sheets
The side surface of optical fiber image guide device body 1, surrounding layer is formed to the side surface of optical fiber image guide device body 1；Or will
Orientation of the glass fiber along the optical fiber silk in optical fiber image guide device body 1 is closely spaced passes picture in optical fiber
The side surface of component body 1, so as to form optical fiber pre-melt；Semi-finished product made from the present embodiment can also pass through cold working
Means are for example round as a ball or open the means such as concave surface and realize that cross section is circular cross-section, concave cross section, square section or rectangular cross-sectional
Deng the preparation of optics image guide device；Optics image guide device of the embodiment of the present invention only using cross section as the positive six prismsby of regular hexagon
Preparation exemplified by illustrate；Specifically, the embodiment of the present invention is only with the optical fiber image guide device body and light of positive six prismsby
Related description is carried out exemplified by the pre-melt of image guide device.
Optical fiber image guide device with bound edge prepared by embodiment 5-8 is assembled with miscellaneous part in use,
Skiving can be carried out to optical fiber image guide device according to actual conditions, the material that skiving falls is bag provided in an embodiment of the present invention
Side glass, or when optical fiber image guide device and miscellaneous part are assembled, sealing part is provided in an embodiment of the present invention
Edge-cladding glass；The above-mentioned material fallen by skiving is passed as function with the equal need not have of the material for playing sealing-in, but the material of this part
Material must stay standby, and fiber optic materials cost is more expensive；The embodiment of the present invention provides and optical fiber material regarding to the issue above
Expect the edge-cladding glass of matched expansion coefficient, replace part need not have in optical fiber image guide device to pass picture with the edge-cladding glass
The fiber optic materials of function, reduce the use of fiber optic materials, greatly reduce cost of material, avoid economic damage
Lose.
Part, those skilled in the art can not known the embodiment of the present invention from prior art to the greatest extent.
Disclosed above is only the embodiment of the present invention, but protection scope of the present invention is not limited thereto, and is appointed
What those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using above-mentioned scope of the claims as
It is accurate.
Claims (9)
1. edge-cladding glass, it is characterised in that its raw material is made up of the component of following weight/mass percentage composition：
SiO260%-75%, B2O37%-16%, Al2O30.5%-4.5%, K2O 5%-10%, Na2O 4%-8%, CaO
And/or MgO 1%-3%, Li2O 0.2%-1%, CaF20.2%-1%.
2. edge-cladding glass according to claim 1, it is characterised in that its raw material by following weight/mass percentage composition component group
Into：SiO265%-70%, B2O39%-12%, Al2O32%-4.5%, K2O 5%-8%, Na2O 5%-7%, CaO and/
Or MgO 1%-3%, Li2O 1%, CaF21%.
3. edge-cladding glass according to claim 1, it is characterised in that the edge-cladding glass is under the conditions of 20 DEG C -300 DEG C
The coefficient of expansion is 74 × 10-7-84×10-71/℃；The softening temperature of the edge-cladding glass is 580 DEG C -630 DEG C.
4. the preparation method of the edge-cladding glass described in claim any one of 1-3, it is characterised in that prepare glass by composition of raw materials
Batch, the glass batch is fused into glass metal, the glass metal is cast in the heat-resisting steel mold by preheating,
Glass blocks is obtained after the glass metal solidification, the glass blocks is annealed, cooled down and is stripped, obtains edge-cladding glass.
5. the preparation method of edge-cladding glass according to claim 4, it is characterised in that the fusing is in glass furnace
Middle progress, the temperature of the fusing is 1350 DEG C -1450 DEG C, and 5-8 hours are incubated after fusing, and during insulation is entered to the glass metal
3 mechanical agitations of row；The preheating temperature of the heat-resisting steel mold is 450 DEG C -650 DEG C；The annealing is carried out in Muffle furnace,
The temperature of the annealing is 550 DEG C -650 DEG C.
6. the preparation method of optical fiber image guide device, including row's plate process and fusion pressure forming process, it is characterised in that pass through row
Plate obtains optical fiber pre-melt, and the optical fiber pre-melt includes optical fiber image guide device body and bound edge, the bag
While the side surface of the optical fiber image guide device body is wrapped to form surrounding layer；The material of the bound edge is claim 1
Described edge-cladding glass；It will obtain having the optical fiber of bound edge to pass after optical fiber pre-melt fusion pressure shaping and cold working
Element.
7. the preparation method of optical fiber image guide device according to claim 6, it is characterised in that optical fiber silk is 20
The coefficient of expansion under the conditions of DEG C -300 DEG C is 74 × 10-7-84×10-71/℃。
8. the preparation method of optical fiber image guide device according to claim 6, it is characterised in that the optical fiber passes
Element body is positive six prismsby, and the optical fiber pre-melt is positive six prismsby；The optical fiber pre-melt is by described
The sheet glass that edge-cladding glass obtains after cutting, surface grinding and polishing is close to the optical fiber image guide device sheet
The side surface of body and obtain, or the optical fiber pre-melt be by the edge-cladding glass by cutting, surface polishing and draw
The glass fiber that Cheng Sihou is obtained is arranged in the side surface of the optical fiber image guide device body and obtained；The silk of the glass fiber
Footpath is identical with the filametntary string diameter of secondary optics.
9. optical fiber image guide device, it is characterised in that the optical fiber image guide device includes optical fiber image guide device sheet
The side surface of the optical fiber image guide device body is wrapped to form surrounding layer by body and bound edge, the bound edge；The bound edge
Material is the edge-cladding glass described in claim 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106483602B (en) * | 2016-12-12 | 2019-05-31 | 中国建筑材料科学研究总院 | The method for correcting the distortion of fibre faceplate magnifying power |
| CN106772791B (en) * | 2017-04-01 | 2019-04-19 | 中国建筑材料科学研究总院 | Low stray light crosstalk type fibre optic image transmission element and preparation method thereof |
| CN108663747B (en) * | 2018-04-25 | 2019-10-29 | 中国建筑材料科学研究总院有限公司 | Fibre faceplate and preparation method thereof |
| CN110156335A (en) * | 2019-05-27 | 2019-08-23 | 中国建筑材料科学研究总院有限公司 | A kind of middle numerical aperture fiber optical glass and its preparation method and application |
| CN112707641B (en) * | 2021-02-01 | 2022-10-11 | 中国科学院上海光学精密机械研究所 | Edge-covered glass for neodymium-doped phosphate laser glass integrated edge covering and preparation method |
| CN114180830B (en) * | 2021-11-23 | 2024-01-16 | 中国建筑材料科学研究总院有限公司 | Coated glass, preparation method thereof, method for preparing microchannel plate by using coated glass and microchannel plate |
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| US4768859A (en) * | 1984-01-24 | 1988-09-06 | Kabushiki Kaisha Toshiba | Cladding glass for optical fiber |
| CN101475309A (en) * | 2007-12-20 | 2009-07-08 | 肖特公开股份有限公司 | Core glass in alkali-zinc-glass system and fibre optic cable |
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Address after: 100024 No. 1, East Lane, Chaoyang District, Beijing, Guanzhuang Patentee after: CHINA BUILDING MATERIALS ACADMEY Address before: 100024 No. 1, East Lane, Chaoyang District, Beijing, Guanzhuang Patentee before: CHINA BUILDING MATERIALS ACADEMY |
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