CN106380070A - Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method - Google Patents

Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method Download PDF

Info

Publication number
CN106380070A
CN106380070A CN201610760958.XA CN201610760958A CN106380070A CN 106380070 A CN106380070 A CN 106380070A CN 201610760958 A CN201610760958 A CN 201610760958A CN 106380070 A CN106380070 A CN 106380070A
Authority
CN
China
Prior art keywords
optical fiber
fiber
regulator
stabilising arrangement
keeping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610760958.XA
Other languages
Chinese (zh)
Inventor
严垒
罗文勇
杜城
陈俊
李伟
孔明
张洁
刘志坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rui Light Communication Technology Co Ltd
Fiberhome Telecommunication Technologies Co Ltd
Original Assignee
Fiberhome Telecommunication Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fiberhome Telecommunication Technologies Co Ltd filed Critical Fiberhome Telecommunication Technologies Co Ltd
Priority to CN201610760958.XA priority Critical patent/CN106380070A/en
Publication of CN106380070A publication Critical patent/CN106380070A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C03B37/03Drawing means, e.g. drawing drums ; Traction or tensioning devices
    • C03B37/032Drawing means, e.g. drawing drums ; Traction or tensioning devices for glass optical 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
    • C03B37/01Manufacture 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
    • C03B37/0253Controlling or regulating
    • 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
    • C03B37/027Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02745Fibres having rotational spin around the central longitudinal axis, e.g. alternating +/- spin to reduce polarisation mode dispersion
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00Fibre drawing or extruding details
    • C03B2205/06Rotating the fibre fibre about its longitudinal axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

The invention discloses an optical fiber stabilization apparatus, which is used for stabilizing an optical fiber during an optical fiber drawing process. The apparatus comprises an optical fiber stabilization assembly, which includes an air flow generator and an optical fiber stabilizer, wherein the air flow generator blows air to the optical fiber stabilizer and provides a fascicular air flow for keeping an optical fiber position in the optical fiber stabilizer. The air flow generator provides an air flow for keeping the optical fiber position in the optical fiber stabilizer, and the air flow forms high pressure to hold the optical fiber in the air flow, so that the optical fiber is subjected to air flow damping when shaken in the optical fiber stabilizer and is prevented from shaking.

Description

Optical fiber stabilising arrangement, fiber spinning system for drawing and optical fiber drawing method
Technical field
The present invention relates to optical fiber fabrication arts are and in particular to a kind of optical fiber stabilising arrangement, fiber spinning system for drawing and light Fine drawing process.
Background technology
In the real process of the rotation wire drawing of optical fiber, the machining accuracy of rotating tailstock, clamp precision, prefabricated rods tail rod are molten Connect the factors such as precision, the axis of rotation of preform all can be caused cannot to be exactly perpendicularly to horizontal plane, lead to optical fiber to be shaken, deposit In the risk of naked fibre scratch, and affect the coating uniformity of optical fiber, thus affecting optical fiber quality.Chinese patent 201510742763.8 pass through to adjust the flow of time furnace gases, to reduce the impact to optical fiber for the gas, to avoid optical fiber to shake.But It is that the method can not solve the factors such as above-mentioned machining accuracy by rotating tailstock, clamp precision, prefabricated rods tail rod fusing accuracy The optical fiber shake bringing.
Content of the invention
The invention aims to overcoming the shortcomings of above-mentioned background technology, provide a kind of can prevent by rotating tailstock plus The optical fiber stabilising arrangement of the optical fiber stabilization that the factors such as work precision, clamp precision, prefabricated rods tail rod fusing accuracy are brought, it is used for Stable fiber in fiber drawing process, it includes:Assembly stablized by one optical fiber, and described optical fiber is stablized assembly and included gas flow generating device With optical fiber regulator, described gas flow generating device is blown to optical fiber regulator, and forms holding optical fiber position in optical fiber regulator The pencil air-flow put.
On the basis of technique scheme, described optical fiber stabilising arrangement includes a slide rail, equipped with slide block on described slide rail, Described optical fiber is stablized assembly and is directly or indirectly fixed on described slide block, described slide block is additionally provided with for locking described slide block position The screw put.
On the basis of technique scheme, described optical fiber regulator includes air inlet and gas outlet, described air inlet and It is provided with the holding passage for keeping fiber position between gas outlet, and the described cross-sectional area keeping passage is less than described air inlet Mouth and the cross-sectional area of gas outlet.
On the basis of technique scheme, described holding passage is shoulder hole or horn mouth.
On the basis of technique scheme, described gas flow generating device is provided with air outlet, described air outlet with described enter QI KOU is connected.
On the basis of technique scheme, described gas flow generating device uses nitrogen.
The present invention also provides a kind of fiber spinning system for drawing with optical fiber stabilising arrangement, and it includes:One wire-drawer-tower, institute State wire-drawer-tower and be provided with painting curing oven, described optical fiber stabilising arrangement located at described painting curing oven below, and described optical fiber regulator with Described painting curing oven is conllinear.
On the basis of technique scheme, described optical fiber regulator includes keeping the holding passage of fiber position, described Apply curing oven and be provided with applicator, the center of described holding passage is conllinear with described applicator.
The present invention also provides a kind of optical fiber drawing method of use fiber spinning system for drawing, and optical fiber is passed through optical fiber stable Device, gas flow generating device is blown to optical fiber regulator, forms pencil air-flow around the optical fiber determining in device positioned at stabilized fiber.
The present invention also provides a kind of optical fiber drawing method, provides an optical fiber stabilising arrangement and a wire-drawer-tower, described stabilized fiber Determine device and include optical fiber to stablize assembly, described optical fiber is stablized assembly and included gas flow generating device and optical fiber regulator, described air-flow Generating means are used for being formed the air-flow keeping fiber position in described optical fiber regulator, and it is sliding that described optical fiber stabilising arrangement includes one Rail, equipped with slide block on described slide rail, described optical fiber is stablized assembly and is directly or indirectly fixed on described slide block, and described optical fiber is stable Device is provided with the holding passage keeping fiber position, and described wire-drawer-tower is provided with painting curing oven, and described painting curing oven is provided with applicator;Will Optical fiber stabilising arrangement is placed in below painting curing oven, and makes described applicator conllinear with described holding channel center;
Sliding slider, optical fiber is stablized assembly movement fixing to predeterminated position;
Optical fiber is passed through and keeps passage and do not contact with keeping vias inner walls;
Gas flow generating device, to keeping passage to blow, optical fiber is maintained in holding passage.
Compared with prior art, due to holding fiber position is formed in optical fiber regulator by gas flow generating device Air-flow, the hyperbar being formed by air-flow, and optical fiber is placed in air-flow, it is subject to gas when so that optical fiber is shaken in optical fiber regulator The damping of stream, thus prevent optical fiber from shaking.
Optical fiber regulator is placed on slide rail, so that the position of assembly stablized by adjustment optical fiber, to obtain more preferable stabilization Effect.Meanwhile, it is provided with the holding passage of stepped or horn mouth dress in optical fiber regulator so that keeping passage internal gas pressure higher, Be conducive to mentioning the anti-shudder performance of optical fiber.
Brief description
Fig. 1 is that in the embodiment of the present invention, apparatus structure schematic diagram stablized by optical fiber;
Fig. 2 is that in the embodiment of the present invention, modular construction schematic diagram stablized by optical fiber.
Reference:1- optical fiber stablizes assembly, 10- gas flow generating device, 11- optical fiber regulator, 12- air inlet, and 13- goes out QI KOU, 14 holding passages, 15- air outlet;2- slide rail, slide block 20,21- screw, 22- gripper shoe, 23- connecting plate.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Shown in Figure 1, it stablizes apparatus structure schematic diagram for optical fiber.It includes a kind of optical fiber stabilising arrangement, and it is used for Stable fiber in fiber drawing process, it includes a slide rail 2, and equipped with slide block 20 on described slide rail 2, assembly stablized by described optical fiber 1 is directly or indirectly fixed on described slide block 20.Specifically, optical fiber is stablized assembly 1 and can be directly installed on slide block 20, or Can also be fixed on slide rail 2 by gripper shoe 22.In the present embodiment, fixed connecting plate 23 on slide block 20, gripper shoe 22 is solid It is scheduled on connecting plate 23.Screw 21 for locking described slide block 20 position is additionally provided with slide block 20.Assembly 1 stablized by one optical fiber, Described optical fiber is stablized assembly 1 and is included gas flow generating device 10 and optical fiber regulator 11, and described gas flow generating device 10 is to stabilized fiber Determine device 11 to blow, and form the pencil air-flow keeping fiber position in optical fiber regulator 11.Existed by gas flow generating device 10 Form the air-flow keeping fiber position, the hyperbar being formed by air-flow in optical fiber regulator 11, and optical fiber be placed in air-flow, Optical fiber is made to be damped by air-flow when shaking in optical fiber regulator, thus preventing optical fiber from shaking.In order to keep the position of optical fiber, Thus reach preventing optical fiber from shaking, gas flow generating device 10 forms the air-flow of pencil, the gas of this pencil in optical fiber regulator 11 Stream optical fiber is held within, due to the effect of air pressure, when the position of optical fiber is moved, its be subject to air-flow damping force and more Plus it is stable.Therefore, holding fiber position herein is construed as by being placed in optical fiber in air-flow, and is absorbed by air-flow The energy of optical fiber shake, thus reach the effect preventing optical fiber shake.
Gas flow generating device 10 is provided with air outlet 15, and optical fiber regulator 11 includes air inlet 12 and gas outlet 13, described go out Air port 15 is connected with described air inlet 12, is blown with being connected to air inlet 12.
It is provided with the holding passage 14 for keeping fiber position between air inlet 12 and gas outlet 13, and described holding passage 14 cross-sectional area is less than the cross-sectional area of described air inlet 12 and gas outlet 13.The less holding passage 14 of cross-sectional area can carry Air pressure in holding passage 14 for the high gas flow, the damping force receiving during raising optical fiber shake, and then raising optical fiber resist trembles ability, guarantor Holding passage 14 is shoulder hole or horn mouth, to reduce its cross-sectional area.Described gas flow generating device 10 uses nitrogen, it is to avoid pollution Optical fiber.
The present invention also provides a kind of fiber spinning system for drawing, and it includes:One wire-drawer-tower, described wire-drawer-tower is provided with painting solidification Stove, described optical fiber stabilising arrangement is below described painting curing oven, and described optical fiber regulator 11 is conllinear with described painting curing oven. Specifically, optical fiber regulator 11 includes keeping the holding passage 14 of fiber position, and described painting curing oven is provided with applicator, described guarantor The center holding passage 14 is conllinear with described applicator.
It is described below and carries out optical fiber drawing method using fiber spinning system for drawing, it includes passing through optical fiber stable optical fiber Device 11, gas flow generating device 10 is blown to optical fiber regulator 11, forms pencil around the optical fiber determining in device 11 positioned at stabilized fiber Air-flow.Pencil air-flow produces damping when optical fiber is shaken, thus preventing optical fiber from shaking.
Introduce the optical fiber drawing method of the present invention below again, an optical fiber stabilising arrangement and a wire-drawer-tower, described light are provided Fine stabilising arrangement includes optical fiber and stablizes assembly 1, and described optical fiber is stablized assembly 1 and included gas flow generating device 10 and optical fiber regulator 11, described gas flow generating device 10 is used for being formed the air-flow keeping fiber position, described optical fiber in described optical fiber regulator 11 Stabilising arrangement includes a slide rail 2, and equipped with slide block 20 on described slide rail 2, described optical fiber is stablized assembly 1 and is directly or indirectly fixed on institute State on slide block 20, described optical fiber regulator 11 is provided with the holding passage 14 keeping fiber position, described wire-drawer-tower is provided with painting solidification Stove, described painting curing oven is provided with applicator;By optical fiber stabilising arrangement be placed in painting curing oven below, and make described applicator with described Keep passage 14 center conllinear;
Sliding slider 20, optical fiber is stablized assembly 1 mobile fixing to predeterminated position;
By optical fiber pass through keep passage 14 and not with keep passage 14 contact internal walls;
Gas flow generating device 10, to keeping passage 14 to blow, optical fiber is maintained in holding passage 14.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these modifications and change Within the scope of the claims in the present invention and its equivalent technologies, then these modifications and modification are also in protection scope of the present invention for type Within.
The prior art that the content not described in detail in description is known to the skilled person.

Claims (10)

1. a kind of optical fiber stabilising arrangement, it is for stable fiber in fiber drawing process it is characterised in that it includes:One light Fibre stablizes assembly (1), and described optical fiber is stablized assembly (1) and included gas flow generating device (10) and optical fiber regulator (11), described gas Stream generating apparatus (10) are blown to optical fiber regulator (11), and form the pencil keeping fiber position in optical fiber regulator (11) Air-flow.
2. as claimed in claim 1 a kind of optical fiber stabilising arrangement it is characterised in that:Described optical fiber stabilising arrangement includes a slide rail (2), equipped with slide block (20) on described slide rail (2), described optical fiber is stablized assembly (1) and is directly or indirectly fixed on described slide block (20) On, described slide block (20) is additionally provided with the screw (21) for locking described slide block (20) position.
3. as claimed in claim 1 a kind of optical fiber stabilising arrangement it is characterised in that:Described optical fiber regulator (11) includes air inlet Mouth (12) and gas outlet (13), is provided between described air inlet (12) and gas outlet (13) for keeping the holding of fiber position to lead to Road (14), and the described cross-sectional area keeping passage (14) is less than the cross-sectional area of described air inlet (12) and gas outlet (13).
4. as claimed in claim 3 a kind of optical fiber stabilising arrangement it is characterised in that:Described holding passage (14) be shoulder hole or Horn mouth.
5. as claimed in claim 3 a kind of optical fiber stabilising arrangement it is characterised in that:Described gas flow generating device (10) is provided with out Air port (15), described air outlet (15) is connected with described air inlet (12).
6. as claimed in claim 1 a kind of optical fiber stabilising arrangement it is characterised in that:Described gas flow generating device (10) uses nitrogen Gas.
7. a kind of fiber spinning system for drawing being provided with optical fiber stabilising arrangement described in claim 1-6 any one, it includes:One Wire-drawer-tower, described wire-drawer-tower is provided with painting curing oven, and described optical fiber stabilising arrangement is below described painting curing oven, and described optical fiber Regulator (11) is conllinear with described painting curing oven.
8. fiber spinning system for drawing as claimed in claim 7 it is characterised in that:Described optical fiber regulator (11) includes keeping The holding passage (14) of fiber position, described painting curing oven is provided with applicator, the center of described holding passage (14) and described painting Cover device conllinear.
9. a kind of usage right require fiber spinning system for drawing described in 7 optical fiber drawing method it is characterised in that:Optical fiber is worn Cross optical fiber regulator (11), gas flow generating device (10) is blown to optical fiber regulator (11), is determining in device (11) positioned at stabilized fiber Optical fiber around formed pencil air-flow.
10. a kind of optical fiber drawing method it is characterised in that:There is provided an optical fiber stabilising arrangement and a wire-drawer-tower, described optical fiber is stable Device includes optical fiber and stablizes assembly (1), and described optical fiber is stablized assembly (1) and included gas flow generating device (10) and optical fiber regulator (11), described gas flow generating device (10) is used for being formed the air-flow keeping fiber position, institute in described optical fiber regulator (11) State optical fiber stabilising arrangement and include a slide rail (2), equipped with slide block (20) on described slide rail (2), described optical fiber stablizes assembly (1) directly Or be indirectly secured on described slide block (20), described optical fiber regulator (11) is provided with the holding passage (14) keeping fiber position, Described wire-drawer-tower is provided with painting curing oven, and described painting curing oven is provided with applicator;Optical fiber stabilising arrangement is placed in below painting curing oven, And make described applicator conllinear with described holding passage (14) center;
Sliding slider (20), optical fiber is stablized assembly (1) mobile fixing to predeterminated position;
By optical fiber pass through keep passage (14) and not with keep passage (14) contact internal walls;
Gas flow generating device (10), to keeping passage (14) to blow, optical fiber is maintained in holding passage (14).
CN201610760958.XA 2016-08-29 2016-08-29 Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method Pending CN106380070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610760958.XA CN106380070A (en) 2016-08-29 2016-08-29 Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610760958.XA CN106380070A (en) 2016-08-29 2016-08-29 Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method

Publications (1)

Publication Number Publication Date
CN106380070A true CN106380070A (en) 2017-02-08

Family

ID=57937954

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610760958.XA Pending CN106380070A (en) 2016-08-29 2016-08-29 Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method

Country Status (1)

Country Link
CN (1) CN106380070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112209614A (en) * 2020-09-29 2021-01-12 藤仓烽火光电材料科技有限公司 Air blowing type optical fiber preform glass body stabilizing equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589839A (en) * 1981-07-03 1983-01-20 Nippon Telegr & Teleph Corp <Ntt> Coating of optical fiber
DE3707969A1 (en) * 1987-03-12 1988-09-22 Rheydt Kabelwerk Ag Method for producing an optical fibre
JP2000247688A (en) * 1999-03-02 2000-09-12 Yazaki Corp Cooling device for optical fiber
CN102906041A (en) * 2010-05-27 2013-01-30 康宁股份有限公司 Method for producing optical fiber using linear non-contact fiber centering

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589839A (en) * 1981-07-03 1983-01-20 Nippon Telegr & Teleph Corp <Ntt> Coating of optical fiber
DE3707969A1 (en) * 1987-03-12 1988-09-22 Rheydt Kabelwerk Ag Method for producing an optical fibre
JP2000247688A (en) * 1999-03-02 2000-09-12 Yazaki Corp Cooling device for optical fiber
CN102906041A (en) * 2010-05-27 2013-01-30 康宁股份有限公司 Method for producing optical fiber using linear non-contact fiber centering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112209614A (en) * 2020-09-29 2021-01-12 藤仓烽火光电材料科技有限公司 Air blowing type optical fiber preform glass body stabilizing equipment

Similar Documents

Publication Publication Date Title
CN205834484U (en) Cut head unit
US20170349991A1 (en) Installation and method for the metallic coating of a workpiece
CN106125192B (en) A kind of ultra-low loss large effective area fiber and its preparation process
CN105436214B (en) A kind of wire rod edge cooling device and wire rod edge cooling means
CN104359837B (en) Measuring system for high-temperature spectral radiation characteristics of phase change process of high-melting-point material particles
JP5496992B2 (en) Plasma spraying apparatus and control method thereof
CN106380070A (en) Optical fiber stabilization apparatus, optical fiber rotational drawing system and optical fiber drawing method
US3592676A (en) Method and apparatus for coating toroidal-shaped articles
CN109468637A (en) Laser cladding apparatus and laser cladding forming method
CN104213066B (en) The method controlling the oxidizable coating of atmosphere plasma spraying under air open environment
CN108303260A (en) Air flue test stand
CN108827153A (en) A kind of spray gun laser locating apparatus and its calibration method
CN204758472U (en) High -melting -point material granule phase transition process high temperature spectrum radiation characteristic measurement system
JP2003095689A (en) Method for manufacturing optical fiber and device for manufacturing it
KR101341689B1 (en) Precise gas pressure/flow control device and method for gas analysers
JP4926165B2 (en) Optical fiber preform manufacturing method and apparatus using high frequency induction thermal plasma torch
FR2812288B1 (en) METHOD AND DEVICE FOR MANUFACTURING AN OPTICAL FIBER PREFORM
JP3968061B2 (en) Cooling device for ultra-high speed drawing
CN105954088B (en) Laser ablation sample room
KR20060057930A (en) Pressure automatic controlling apparatus for quartz tube
CN204803405U (en) Magnetic control plasma micropore plater
CN217585317U (en) Graphite furnace of multilayer porous injection formula protection gas input mode
US8297079B2 (en) Method of manufacturing porous glass base material used for optical fibers, and glass base material
CN218638819U (en) Cutting gas circuit guider and laser cutting head
Suda et al. Fine glass particle-deposition mechanism in the VAD process

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20170616

Address after: 430000 East Lake high tech Development Zone, Hubei Province, No. 6, No., high and new technology development zone, No. four

Applicant after: Fenghuo Communication Science &. Technology Co., Ltd.

Applicant after: Rui Light Communication Technology Co Ltd

Address before: 430074 East Lake Development Zone, Hubei, Optics Valley Venture Street, No. 67, No.

Applicant before: Fenghuo Communication Science &. Technology Co., Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170208