CN102998788B - Imaging system of fiber fusion splicer and fiber fusion splicer - Google Patents
Imaging system of fiber fusion splicer and fiber fusion splicer Download PDFInfo
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- CN102998788B CN102998788B CN201210497388.1A CN201210497388A CN102998788B CN 102998788 B CN102998788 B CN 102998788B CN 201210497388 A CN201210497388 A CN 201210497388A CN 102998788 B CN102998788 B CN 102998788B
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Abstract
The invention discloses an imaging system of a fiber fusion splicer and the fiber fusion splicer. An optical micro lens of the imaging system comprises an amplifying lens module formed by combining four curved-surface lenses which include two convex lenses and two concave lenses. One concave lens and one convex lens are connected in a gluing mode to form a glued lens group which is combined with the other convex lens and the other concave lens in sequence. Light emitted by a lighting source projects the axial end face of a fiber onto an imaging chip to achieve imaging through the optical micro lens, and a clear fiber image is provided for self aligning and fiber identification of the fiber fusion splicer. The imaging system enables the working distance of the fiber fusion splicer to reach more than 10mm under the premise that the resolution is ensured. Furthermore, compared with a traditional optical microscope, the conjugate distance of the lens is reduced at least a half and can reach about 65mm, and requirements for miniaturization and portability can be met. Besides, the imaging system is suitable for various kinds of silica fibers.
Description
Technical field
The present invention relates to the optical image technology in fused fiber splice field, particularly relate to a kind of imaging system and optical fiber splicer of optical fiber splicer.
Background technology
Silica fibre is made up of quartzy core and the silica clad be formed in around core, and carries out parcel more protection by coat, and light transmits in fiber core.In order to ensure that light signal effectively transmits certain distance in a fiber, need by relatively short Fiber connection together.Optical fiber splicer is the high-accuracy utility device that a kind of light, mechanical, electrical height merges, and can provide quick, steady in a long-term, low-loss fiber junctions, for optical fiber erection and maintenance.Optical imaging system is an important ingredient in optical fiber splicer, during optical fiber splicer welding optic fibre, by optical microscope photography system, obtain the alignment error that two need welding optic fibre, after adjusting this error to the scope allowed, employing electrical discharge arc heats, and makes two fiber end faces close to each other, be fused to entirety by collimation mechanism.Existing optical fiber splicer, due to structural design difference, exists following not enough: 1) imaging system microcobjective conjugate distance is from being generally about 160mm, cannot be applicable to that volume is little, in the heat sealing machine of compact conformation, carry inconvenience; 2) operating distance is little, because of electrode discharge melting fiber, optical fiber welding compound and dust in air particle aggregation to camera lens may affect imaging; 3) generally whether aim at from X and Y both direction detection fiber, in use weld time is long to make optical fiber splicer; Splice loss, splice attenuation is higher; 4) the silica fibre scope that optical fiber splicer is applicable is little.
For the problems referred to above, the present invention proposes a kind of optical fiber splicer imaging system and optical fiber splicer, when ensureing imaging resolution, make optical fiber splicer operating distance become large and microcobjective conjugate distance from diminishing, easy to operate, be easy to carry, and polytype optical fiber can be identified.
Summary of the invention
The technical problem to be solved in the present invention is the imaging system and the optical fiber splicer that propose a kind of optical fiber splicer, solves dissimilar optical fiber and is difficult to identify, and because microcobjective conjugate distance is from making greatly optical fiber splicer volume comparatively large, carries the problem of inconvenience.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of imaging system of optical fiber splicer, described system comprises lighting source, optical microphotograph camera lens, lens barrel and imager chip, described optical microphotograph camera lens comprises the amplifying lens module that four toroidal lenss combine, described four toroidal lenss comprise two panels convex lens and two panels concavees lens, wherein a slice concavees lens and a slice convex lens gummed are connected to form cemented doublet group, then combine with another convex lens and another concavees lens successively, optical fiber axial end is projected imaging on imager chip by described optical microphotograph camera lens by the light that lighting source sends.
Further, the focal range of described optical microphotograph camera lens is 4mm ~ 6mm.
Further, in described cemented doublet group, the surface curvature that concavees lens and convex lens carry out gluing together is identical, and the curved surface at the side place of convex lens exceed cemented surface part together with cemented surface side lens surface on apply Berlin black.
Further, in described cemented doublet group, the range of curvature radius of a concavees lens curved sides is 805mm ~ 806mm, and the range of curvature radius of another curved sides is 8mm ~ 9mm; The radius-of-curvature of described biconvex lens two curved sides is identical, and scope is 8mm ~ 9mm; Outside cemented doublet group, the range of curvature radius of another convex lens curved sides is 64mm ~ 65mm, the range of curvature radius 9.5mm ~ 10.5mm of another curved sides; The range of curvature radius of another concavees lens curved sides is 6mm ~ 7mm, the range of curvature radius of another curved sides is 355mm ~ 356mm, distance range between cemented doublet group and another convex lens is 0.23mm ~ 0.27mm, and the distance range between another convex lens described and another concavees lens is 10.97mm ~ 11.03mm.
Further, described lens barrel being provided with diaphragm, for regulating the power of transmitted light, also can controlling the impact of parasitic light in imaging optical path system.
Further, described optical microphotograph camera lens is connected by locknut with between lens barrel.
Further, the lens that described optical microphotograph camera lens uses comprise glass lens.
Further, described imaging system also comprises pcb board and PCB bearing, and described pcb board is for installing imager chip, and described PCB bearing, for supporting pcb board, adjusts the visual field depth of parallelism of imager chip by the position of adjustment PCB bearing.
Further, described imager chip comprises cmos image sensing chip or ccd image sensing chip.
Correspondingly, the present invention also discloses a kind of optical fiber splicer, described optical fiber splicer comprises microprocessor, power module, welding electrode, electrode drive module, imaging system, communication module and display module, described display module, communication module, power module, imaging system is connected with microprocessor with electrode drive module, described electrode drive module and welding Electrode connection, described imaging system comprises lighting source, optical microphotograph camera lens, lens barrel and imager chip, described optical microphotograph camera lens comprises the amplifying lens module combined by four toroidal lenss, described four toroidal lenss comprise two panels convex lens and two panels concavees lens, wherein a slice concavees lens and a slice convex lens gummed are connected to form cemented doublet group, then combine with another convex lens and another concavees lens successively, optical fiber axial end is projected imaging on imager chip by described optical microphotograph camera lens by the light that lighting source sends, picture signal is converted to data-signal and is transferred to microprocessor by imager chip, microprocessor is analyzed data-signal and is carried out auto-alignment, select suitable welding procedure, starter motor driver module and welding electrode carry out welding.
Technical scheme of the present invention, imaging is carried out by selecting the lens of different parameters and carrying out adjustment according to actual conditions to the distance between lens, under the prerequisite ensureing resolution, the operating distance of optical fiber splicer can be made to reach more than 10mm, and make the conjugate distance of camera lens at least reduce half, can about 65mm be reached, meet the demand of machine miniaturization, portability; Meanwhile, this imaging system is applicable to polytype silica fibre.
Accompanying drawing explanation
Fig. 1 is the structural representation of the imaging system of the optical fiber splicer of the embodiment of the present invention;
Fig. 2 is the index path of the imaging system optical microphotograph camera lens of the embodiment of the present invention;
Fig. 3 is that the single-mode fiber (SM) of the embodiment of the present invention, multimode optical fiber (MM), dispersion shifted optical fiber (DS) and non-zero dispersion displacement optical fiber (NZDS) are respectively by the data analysis figure after optical fiber splicer imaging system;
Fig. 4 is the actual effect figure of optical fiber splicer imaging system to single-mode fiber (SM) and non-zero dispersion displacement optical fiber (NZDS) imaging of the embodiment of the present invention.
Fig. 5 is the structured flowchart of the optical fiber splicer of the embodiment of the present invention.
Embodiment
By describing technology contents of the present invention in detail, realized object and effect, accompanying drawing is coordinated to be described in detail below in conjunction with embodiment.
Fig. 1 is the structural representation of the imaging system of the optical fiber splicer of the embodiment of the present invention.As shown in Figure 1, described imaging system comprises lighting source 101, optical microphotograph camera lens 102, lens barrel 103 and imager chip 104, described optical microphotograph camera lens 102 is connected with lens barrel 103, described optical microphotograph camera lens 102 comprises the amplifying lens module combined by four toroidal lenss, described four toroidal lenss comprise two panels convex lens and two panels concavees lens, wherein a slice concavees lens and a slice convex lens gummed are connected to form cemented doublet group, then combine with another convex lens and another concavees lens successively, optical fiber axial end 20 is projected imaging on imager chip 104 by described optical microphotograph camera lens by the light that lighting source 101 sends, auto-alignment for optical fiber splicer provides optical fiber image clearly.
Wherein, the lens that described optical microphotograph camera lens uses include but are not limited to glass lens, and the focal range of formation is 4mm ~ 6mm.With diaphragm 106 on described lens barrel 103, for regulating the power of transmitted light.Be M12X0.5 by locknut 105(model between optical microphotograph camera lens 102 with lens barrel 103) be connected, by regulating locknut 105 can adjust image distance, the distance namely between adjustment picture to lens center.
Described imaging system also comprises pcb board 107, described imager chip 104 is installed on pcb board 107, supported by PCB support 108 pairs of pcb boards 107, by the visual field depth of parallelism regulating the position of PCB bearing 108 to adjust imager chip 107, the described depth of parallelism refers to, if it is tilt that optical fiber is seen in LCDs, regulate the position of pcb board by rotating PCB bearing.
Described imager chip 104 comprises cmos image sensing chip or ccd image sensing chip.The resolution of imager chip is 640*480.
The imaging system of optical fiber splicer of the present invention is when ensureing imaging resolution, operating distance can reach more than 10mm, and the conjugate distance of camera lens is from narrowing down to 65mm, compared with conventional optical microscope head, conjugate distance reduces more than half, can meet the requirement of machine miniaturization, portability, meanwhile, optical imaging system of the present invention can identify polytype optical fiber.
Fig. 2 is the index path of the imaging system optical microphotograph camera lens of the embodiment of the present invention.As shown in Figure 2, described optical microphotograph camera lens adopt the amplifying lens module combined by four toroidal lenss, described amplifying lens module comprises two panels concavees lens (eyeglass 1 and eyeglass 4) and two panels convex lens (eyeglass 2 and eyeglass 3), wherein, eyeglass 4 and eyeglass 3 gummed connect to form cemented doublet group, then combine with eyeglass 2 and eyeglass 1 successively.Eyeglass gummed is to reduce the aberration, spherical aberration etc. that are caused by the textural difference of lens own.In described cemented doublet group, the radius-of-curvature of cemented surface two curved surfaces is identical, and described Surface Parameters can be selected according to actual needs, and the curved surface at the side place of eyeglass 3 exceed cemented surface part together with cemented surface side lens surface on apply Berlin black.
The range of curvature radius of eyeglass 4 one curved sides is 805mm ~ 806mm, and this curved sides is positioned at camera lens foremost, and the range of curvature radius of another curved sides is 8mm ~ 9mm, and this curved surface and eyeglass 3 glue together; The radius-of-curvature of described eyeglass 3 liang of curved sides is identical, and scope is 8mm ~ 9mm; The range of curvature radius of eyeglass 2 one curved sides is 64mm ~ 65mm, and this curved sides is relative with eyeglass 1, the range of curvature radius 9.5mm ~ 10.5mm of another curved sides, and this curved sides is relative with eyeglass 3; The range of curvature radius of eyeglass 1 one curved sides is 6mm ~ 7mm, and this curved sides is positioned at the rearmost end of camera lens, and the range of curvature radius of another curved sides is 355mm ~ 356mm, and this curved sides is relative with eyeglass 2; Distance range between cemented doublet group and eyeglass 2 is 0.23mm ~ 0.27mm, and the distance range between described eyeglass 2 and eyeglass 1 is 10.97mm ~ 11.03mm.Wherein, the lensed optical axis of institute on the same line.
By selecting suitable lens parameters to lens, the enlargement factor of camera lens can be made to be amplified to original 8 times, even higher.Described imaging optical path can make the conjugate distance of imaging system camera lens from reaching 65mm, with conventional microscope head conjugate distance from compared with 160mm, reduces more than half.
First embodiment
In the specific embodiment of the invention, in the cemented doublet group of described imaging system, radius-of-curvature 805.97mm and 8.31mm respectively of concavees lens two curved sides, the radius-of-curvature of convex lens two curved sides is all 8.31mm, outside cemented doublet group, the radius-of-curvature of convex lens two curved sides is respectively 64.86mm and 10mm, concavees lens radius-of-curvature is the curved surface of 8.31mm and the curvature radius of convex lens is outside 8.31mm curved surface gummed cemented doublet group, the radius-of-curvature of concavees lens two curved sides is respectively 6.28mm and 355.18mm, according to the foregoing array mode of the present invention, distance between cemented doublet group and the outer convex lens of cemented doublet group is 0.25mm, the distance of described convex lens and the outer concavees lens of cemented doublet group is 11mm, described lens barrel is with diaphragm, LED(light emitting diode) or laser instrument send 632nm ruddiness, by the imaging on imager chip of this imaging system, the resolution of system can be reached, the indexs such as distortion.
The lens parameters that this specific embodiment obtains is as follows:
1) camera lens conjugate distance is 65mm, object distance 10.157mm, and the first lens module is 35.7mm to the distance of imager chip;
2) imaging system enlargement factor 8X:
3) visual range 0.25mm, numerical aperture (NA) is 0.252;
4) resolution >40% (400c/mm);
5) distort distortion <0.01%;
6) imager chip: 640*480 pixel 6um;
7) transmitted light LED light spectral limit (632 ± 10nm).
The advantage of this imaging system: 1) effectively automatic identification form mode fiber (SM), multimode optical fiber (MM), dispersion shifted optical fiber (DS) and non-zero dispersion displacement optical fiber (NZDS), for different fiber, for splicing parameter optimization provides reliable foundation, reach best welding effect; 2) to the quality of fiber cut end face (as cutting angle, with or without fragment and collapse angle, end face has free from dust etc.) analyze, ensure that the alignment error of optical fiber is less than 0.2um, reduce the loss of welding, improve tensile strength etc.; 3) operating distance can reach at least 10mm, when electrode discharge melting fiber, can prevent from optical fiber welding compound and dust in air particle aggregation to camera lens affect imaging; 4) conjugate distance of optical microphotograph camera lens is from being less than traditional microlens, can meet the requirement of machine miniaturization, makes that optical fiber splicer volume is less, quality is also reduced to minimum as far as possible, and is convenient for carrying.
Second embodiment
In the specific embodiment of the invention, in the cemented doublet group of described imaging system, radius-of-curvature 805mm and 8mm respectively of concavees lens two curved sides, the radius-of-curvature of convex lens two curved sides is all 8mm, outside cemented doublet group, the radius-of-curvature of convex lens two curved sides is respectively 64mm and 9.5mm, concavees lens radius-of-curvature is the curved surface of 8mm and the curvature radius of convex lens is outside 8mm curved surface gummed cemented doublet group, the radius-of-curvature of concavees lens two curved sides is respectively 6mm and 355mm, according to the foregoing array mode of the present invention, distance between cemented doublet group and the outer convex lens of cemented doublet group is 0.23mm, the distance of described convex lens and the outer concavees lens of cemented doublet group is 10.97mm, described lens barrel is with diaphragm, LED(light emitting diode) or laser instrument send 632nm ruddiness, by the imaging on imager chip of this imaging system, the resolution of system can be reached, the indexs such as distortion.
3rd embodiment
In the specific embodiment of the invention, in the cemented doublet group of described imaging system, radius-of-curvature 806mm and 9mm respectively of concavees lens two curved sides, the radius-of-curvature of convex lens two curved sides is all 9mm, outside cemented doublet group, the radius-of-curvature of convex lens two curved sides is respectively 65mm and 10.5mm, concavees lens radius-of-curvature is the curved surface of 9mm and the curvature radius of convex lens is outside 9mm curved surface gummed cemented doublet group, the radius-of-curvature of concavees lens two curved sides is respectively 7mm and 356mm, according to the foregoing array mode of the present invention, distance between cemented doublet group and the outer convex lens of cemented doublet group is 0.27mm, the distance of described convex lens and the outer concavees lens of cemented doublet group is 11.03mm, described lens barrel is with diaphragm, LED(light emitting diode) or laser instrument send 632nm ruddiness, by the imaging on imager chip of this imaging system, the resolution of system can be reached, the indexs such as distortion.
Fig. 3 is that the single-mode fiber (SM) of the embodiment of the present invention, multimode optical fiber (MM), dispersion shifted optical fiber (DS) and non-zero dispersion displacement optical fiber (NZDS) are respectively by the data analysis figure after optical fiber splicer imaging system.As shown in Figure 3, the horizontal ordinate of each data analysis figure represents the distance (um) of optical fiber axial end, the i.e. thickness of optical fiber, and ordinate represents the photosensitive brightness of imager chip.Silica fibre is made up of quartzy core and the silica clad be formed in around core, therefore, when the transmitted light that employing spectral range is 632 ± 10nm carries out imaging, the brightness of the projecting covering of brightness of the quartzy core that sensor chip is experienced, at the marginal position that quartzy core contacts with covering, brightness is maximum, and because quartzy cored structure is different, the brightness value of sensor chip impression is also different.Wherein, according to data analysis figure, be easy to single-mode fiber (SM) and other three kinds of optical fiber to distinguish come by the variation tendency of photosensitive brightness, for different fiber, for splicing parameter optimization provides reliable foundation, reach best welding effect.
For single-mode fiber welding, by treating that the single-mode fiber axial end data of welding carry out Analysis of the alignment errors to two, when alignment error reaches the alignment error scope of permission, namely think that two single-mode fiber axial ends are aimed at, make two optical fiber axial ends close by collimation mechanism, select suitable welding procedure to carry out welding.
Due to the image of the display optical fiber axial end of the optical imaging system enlargement factor sufficiently clear of the embodiment of the present invention, therefore, other three kinds of fused fiber splices can realize low loss welding according to the welding process of single-mode fiber equally.
Fig. 4 is the actual effect figure of optical fiber splicer imaging system to single-mode fiber (SM) and non-zero dispersion displacement optical fiber (NZDS) imaging of the embodiment of the present invention.By to the data analysis in Fig. 3, optical fiber splicer will treat that the fiber axis of welding is shown to end view drawing picture by display screen, actual imaging effect is as Fig. 4, clearly can tell two by Fig. 4 and treat that the optical fiber of welding does not belong to same fiber, for obtain low-loss, high strength fusion point, need according to fiber type carry out strength of discharge, the discharge period, electrical discharge arc center adjust accordingly.
Fig. 5 is the structured flowchart of the optical fiber splicer of the embodiment of the present invention.As shown in Figure 5, described optical fiber splicer comprises microprocessor 501, power module 502, welding electrode 503, electrode drive module 504, imaging system 505, communication module 506 and display module 507, described display module 507, communication module 506, power module 502, imaging system 505 are connected with microprocessor 501 with electrode drive module 504, and described electrode drive module 504 is connected with welding electrode 503;
Described imaging system 505 comprises lighting source, optical microphotograph camera lens, lens barrel and imager chip, described optical microphotograph camera lens comprises the amplifying lens module combined by four toroidal lenss, described four toroidal lenss comprise two panels convex lens and two panels concavees lens, wherein a slice concavees lens and a slice convex lens gummed are connected to form cemented doublet group, then combine with another convex lens and another concavees lens successively, optical fiber axial end is projected imaging on imager chip by described optical microphotograph camera lens by the light that lighting source sends, picture signal is converted to data-signal and is transferred to microprocessor 501 by imager chip, microprocessor 501 pairs of data-signals are analyzed and carry out auto-alignment, select suitable welding procedure, starter motor driver module 504 and welding electrode 503 carry out welding.
The focal range of described optical microphotograph camera lens is 4 ~ 6mm.
The lens that described optical microphotograph camera lens uses include but are not limited to glass lens.
With diaphragm on described lens barrel, for regulating the power of transmitted light.Described optical microphotograph camera lens is connected by locknut (M12X0.5) with between lens barrel, can adjust by regulating locknut to image distance.
Described imaging system also comprises pcb board, and described imager chip is installed on pcb board, is supported pcb board by PCB support, by the field positions regulating the position of PCB support to adjust imager chip.
Described imager chip comprises cmos image sensing chip or ccd image sensing chip.
Technical scheme of the present invention, by selecting the lens of different parameters and carrying out adjusting the imaging system formed to the distance between lens according to actual conditions, under the prerequisite ensureing resolution, the operating distance of optical fiber splicer can be made to reach more than 10mm, and compared with the conjugate distance of conventional optical microscope head 160mm, the conjugate distance of camera lens of the present invention at least reduces half, meets the demand of machine miniaturization, portability; Meanwhile, this imaging system is applicable to polytype silica fibre.
Above are only preferred embodiment of the present invention and institute's application technology principle, be anyly familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.
Claims (9)
1. the imaging system of an optical fiber splicer, described imaging system comprises lighting source, optical microphotograph camera lens, lens barrel and imager chip, it is characterized in that, described optical microphotograph camera lens comprises the amplifying lens module that four toroidal lenss combine, described four toroidal lenss comprise two panels convex lens and two panels concavees lens, wherein a slice concavees lens and a slice convex lens gummed are connected to form cemented doublet group, then combine with another convex lens and another concavees lens successively, optical fiber axial end is projected imaging on imager chip by described optical microphotograph camera lens by the light that lighting source sends, the focal range of described optical microphotograph camera lens is 4mm ~ 6mm.
2. the imaging system of optical fiber splicer according to claim 1, it is characterized in that, in described cemented doublet group, the surface curvature that concavees lens and convex lens carry out gluing together is identical, and the curved surface at the side place of convex lens exceed cemented surface part together with cemented surface side lens surface on apply Berlin black.
3. the imaging system of optical fiber splicer according to claim 2, is characterized in that, in described cemented doublet group, the range of curvature radius of a concavees lens curved sides is 805mm ~ 806mm, and the range of curvature radius of another curved sides is 8mm ~ 9mm; The radius-of-curvature of convex lens two curved sides in described cemented doublet group is identical, and scope is 8mm ~ 9mm; Outside cemented doublet group, the range of curvature radius of another convex lens curved sides is 64mm ~ 65mm, the range of curvature radius 9.5mm ~ 10.5mm of another curved sides; The range of curvature radius of another concavees lens curved sides is 6mm ~ 7mm, the range of curvature radius of another curved sides is 355mm ~ 356mm, distance range between cemented doublet group and another convex lens is 0.23mm ~ 0.27mm, and the distance range between another convex lens described and another concavees lens is 10.97mm ~ 11.03mm.
4. the imaging system of optical fiber splicer according to claim 1, is characterized in that, described lens barrel is provided with diaphragm, for regulating the power of transmitted light.
5. the imaging system of optical fiber splicer according to claim 1, is characterized in that, described optical microphotograph camera lens is connected by locknut with between lens barrel.
6. the imaging system of optical fiber splicer according to claim 1, is characterized in that, the lens that described optical microphotograph camera lens uses comprise glass lens.
7. the imaging system of optical fiber splicer according to claim 1, it is characterized in that, described imaging system also comprises pcb board and PCB bearing, described pcb board is for installing imager chip, described PCB bearing, for supporting pcb board, adjusts the visual field depth of parallelism of imager chip by the position of adjustment PCB bearing.
8. the imaging system of optical fiber splicer according to claim 1, is characterized in that, described imager chip comprises cmos image sensing chip or ccd image sensing chip.
9. an optical fiber splicer, described optical fiber splicer comprises microprocessor, power module, welding electrode, electrode drive module, imaging system, communication module and display module, described display module, communication module, power module, imaging system is connected with microprocessor with electrode drive module, described electrode drive module and welding Electrode connection, it is characterized in that, described imaging system comprises lighting source, optical microphotograph camera lens, lens barrel and imager chip, described optical microphotograph camera lens comprises the amplifying lens module combined by four toroidal lenss, described four toroidal lenss comprise two panels convex lens and two panels concavees lens, wherein a slice concavees lens and a slice convex lens gummed are connected to form cemented doublet group, then combine with another convex lens and another concavees lens successively, optical fiber axial end is projected imaging on imager chip by described optical microphotograph camera lens by the light that lighting source sends, picture signal is converted to data-signal and is transferred to microprocessor by imager chip, microprocessor is analyzed data-signal and is carried out auto-alignment, select suitable welding procedure, starting electrode driver module and welding electrode carry out welding, the focal range of described optical microphotograph camera lens is 4mm ~ 6mm.
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| CN104536090B (en) * | 2014-12-02 | 2019-06-25 | 江苏宇特光电科技股份有限公司 | Method for Inspecting Optic Fiber End and fiber end face polishing and detection device |
| CN108363143B (en) * | 2018-03-01 | 2020-11-20 | 南京吉隆光纤通信股份有限公司 | Method for identifying optical fiber by optical fiber fusion splicer, system thereof and special core-adjusting support |
| CN108680996B (en) * | 2018-05-14 | 2024-04-16 | 一诺仪器（中国）有限公司 | Single-lens optical fiber fusion splicer |
| CN111025481A (en) * | 2019-12-23 | 2020-04-17 | 中电科仪器仪表(安徽)有限公司 | Compact high-resolution optical fiber imaging system |
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| JP2000056163A (en) * | 1998-08-12 | 2000-02-25 | Fujikura Ltd | Observation system in multiple optical fiber fusion splicing machine |
| JP2007093940A (en) * | 2005-09-28 | 2007-04-12 | Fujinon Corp | Rear converter lens |
| JP2010117600A (en) * | 2008-11-13 | 2010-05-27 | Furukawa Electric Co Ltd:The | Fusion splicer, and connection control method for fusion splicer |
| CN101706611B (en) * | 2009-11-19 | 2011-11-30 | 福州福特科光电有限公司 | Adjusting structure and method of micro-imaging optical path of optical fibre fusion splicer |
| JP2012137550A (en) * | 2010-12-24 | 2012-07-19 | Sei Optifrontier Co Ltd | Optical fiber fusion splicing machine |
| JP5484598B2 (en) * | 2011-01-24 | 2014-05-07 | 株式会社フジクラ | Fusion splicing device and splicing splicing method |
| CN102520509B (en) * | 2011-12-07 | 2013-10-02 | 燕山大学 | photonic crystal optical fiber splicing imaging system |
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