CN106383381B - Optical fiber beam expansion connector and its optical fiber beam expansion contact, optical fiber contact pins and casing - Google Patents
Optical fiber beam expansion connector and its optical fiber beam expansion contact, optical fiber contact pins and casing Download PDFInfo
- Publication number
- CN106383381B CN106383381B CN201610967064.8A CN201610967064A CN106383381B CN 106383381 B CN106383381 B CN 106383381B CN 201610967064 A CN201610967064 A CN 201610967064A CN 106383381 B CN106383381 B CN 106383381B
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- Prior art keywords
- contact pin
- optical fiber
- stopping surface
- contact
- casing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to optical fiber beam expansion connector and its optical fiber beam expansion contacts, optical fiber contact pins and casing, optical fiber beam expansion contact includes lens, optical fiber contact pins and casing with sleeve body, lens are set to the front end of described sleeve pipe ontology, the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial elastic valve, the contact pin ontology of optical fiber contact pins is provided with the contact pin stopping surface for cooperating with the casing stopping surface block in sleeve body of block direction backwards, it is provided on elastic valve for cooperating the casing stopping surface to prevent optical fiber contact pins from being deviate from from front to back by described sleeve pipe ontology rear end with the contact pin stopping surface block.The present invention provides optical fiber contact pins used in a kind of dismountable optical fiber beam expansion contact of optical fiber contact pins and the optical fiber beam expansion contact, casing and use the optical fiber beam expansion connector of the optical fiber beam expansion contact.
Description
Technical field
The present invention relates to for optical signal transmission optical fiber beam expansion connector and its optical fiber beam expansion contact, optical fiber contact pins and
Casing.
Background technique
Optical fiber beam expansion connector is a kind of high-end novel optical fiber connector, the difference of it and conventional contact optical fiber connector
It is that its contact is the optical contact using optical lens.Optical lens can effectively expand the size of transmitting beam,
And optical signal can be efficiently transmitted under contactless state.
Existing optical fiber beam expansion connector " optical fiber beam expansion contact and use as disclosed in Chinese patent CN201780391U
The optical fiber beam expansion connector of the contact ", the optical fiber beam expansion connector include optical fiber beam expansion contact, optical fiber beam expansion contact packet
Casing is included, the front end of casing is installed with lens, is bonded with optical fiber contact pins on rear side of lens in casing.Existing this optical fiber expands
Beam contact has problems in that: optical fiber contact pins integral structure Nian Jie with casing, optical fiber contact pins can not unloading, after being not easy to
Continuous maintenance replacement.
Summary of the invention
The purpose of the present invention is to provide a kind of dismountable optical fiber beam expansion contacts of optical fiber contact pins；The purpose of the present invention is also
It is to provide optical fiber contact pins used in one kind optical fiber beam expansion contact, casing and the light using the optical fiber beam expansion contact
Fine beam expansion connector.
To solve the above-mentioned problems, the present invention in optical fiber beam expansion contact technical solution are as follows:
Optical fiber beam expansion contact, including lens, optical fiber contact pins and with the casing of sleeve body, lens are set to the set
The front end of tube body, the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial elastic valve, light
The contact pin ontology of fine contact pin be provided with block direction backwards for in sleeve body casing stopping surface block cooperation insert
Needle stopping surface is provided on elastic valve for cooperating with the contact pin stopping surface block to prevent optical fiber contact pins from front to back by institute
State the casing stopping surface of sleeve body rear end abjection.
Contact pin body peripheral is provided with contact pin protrusion or contact pin groove, and contact pin stopping surface is by the rear end face of contact pin protrusion or slotting
The preceding cell wall of needle groove is formed.
It is provided with casing positioning region in sleeve body on rear side of the lens, contact pin stopping surface is gradually court from front to back
The inclined-plane that contact pin body central line direction extends, casing stopping surface are adapted to apply court to contact pin ontology with the contact pin stopping surface
Front direction active force and withstand on contact pin ontology front end on described sleeve pipe positioning region.
Described sleeve pipe positioning region is land structure, and the front end of contact pin ontology is to match with the positioning of the centre bore of the land structure
The pyramidal structure of conjunction.
The technical solution of optical fiber contact pins in the present invention are as follows:
The optical fiber contact pins of optical fiber beam expansion contact are inserted into including the rear end that axis extends along the longitudinal direction for corresponding optical fiber
Contact pin ontology, be provided on contact pin ontology block direction backwards be used for and casing stopping surface block cooperation in sleeve body
Contact pin stopping surface.
Contact pin body peripheral is provided with contact pin protrusion or contact pin groove, and contact pin stopping surface is by the rear end face of contact pin protrusion or slotting
The preceding cell wall of needle groove is formed.
Contact pin stopping surface is the inclined-plane gradually extended from front to back towards contact pin body central line direction.
The technical solution of middle sleeve of the present invention are as follows:
The casing of optical fiber beam expansion contact is used to connect the casing sheet of lens including the front end that axis extends along the longitudinal direction
Body, the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial elastic valve, be arranged on elastic valve
After having for cooperating with the contact pin stopping surface block in contact pin protrusion to prevent optical fiber contact pins from front to back by described sleeve pipe ontology
Hold the casing stopping surface of abjection.
It is provided with casing positioning region in sleeve body, casing stopping surface is for being adapted to contact pin stopping surface with to contact pin sheet
Body applies direction active force facing forward and contact pin ontology front end is made to withstand on the inclined-plane on described sleeve pipe positioning region.
The technical solution of optical fiber beam expansion connector in the present invention are as follows:
Optical fiber beam expansion connector, including optical fiber beam expansion contact, optical fiber beam expansion contact include lens, optical fiber contact pins and tool
There is the casing of sleeve body, lens are set to the front end of described sleeve pipe ontology, and the rear end of sleeve body is at least two along week
To distribution can elastomeric radial elastic valve, the contact pin ontology of optical fiber contact pins be provided with block direction backwards be used for and set
The contact pin stopping surface of casing stopping surface block cooperation on tube body is provided on elastic valve for keeping off with the contact pin stopping surface
Only cooperate the casing stopping surface to prevent optical fiber contact pins from being deviate from from front to back by described sleeve pipe ontology rear end.
Contact pin body peripheral is provided with contact pin protrusion or contact pin groove, and contact pin stopping surface is by the rear end face of contact pin protrusion or slotting
The preceding cell wall of needle groove is formed.
It is provided with casing positioning region in sleeve body on rear side of the lens, contact pin stopping surface is gradually court from front to back
The inclined-plane that contact pin body central line direction extends, casing stopping surface are adapted to apply court to contact pin ontology with the contact pin stopping surface
Front direction active force and withstand on contact pin ontology front end on described sleeve pipe positioning region.
Described sleeve pipe positioning region is land structure, and the front end of contact pin ontology is to match with the positioning of the centre bore of the land structure
The pyramidal structure of conjunction.
The invention has the benefit that in use, the rear end for being inserted into casing of optical fiber contact pins from back to front, on elastic valve
Casing stopping surface with the contact pin stopping surface block cooperation on optical fiber contact pins to preventing optical fiber contact pins from being deviate from by casing rear end, with
This realizes the fixation to optical fiber contact pins, when needing to dismantle optical fiber contact pins, as long as radially expanding elastic valve, so that it may insert optical fiber
Needle is extracted, and the dismounting and change process of optical fiber contact pins is very convenient, furthermore realizes the detachable of optical fiber contact pins using elastic valve structure,
The radial dimension that not will increase optical fiber contact pins also, guarantees the normal use of optical fiber contact pins.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical fiber beam expansion contact in the embodiment 1 of optical fiber beam expansion connector in the present invention；
Fig. 2 is the perspective view of Fig. 1；
Fig. 3 be in Fig. 1 optical fiber contact pins and elastic valve match and schematic diagram；
Fig. 4 is the structural schematic diagram of Fig. 1 middle sleeve；
Fig. 5 is that optical fiber beam expansion connector expands schematic diagram in the present invention；
Fig. 6 is the structural schematic diagram of optical fiber beam expansion contact in the embodiment 2 of optical fiber beam expansion connector in the present invention；
Fig. 7 is the perspective view of Fig. 6；
Fig. 8 is the structural schematic diagram of Fig. 6 middle sleeve；
Fig. 9 is the structural schematic diagram of optical fiber contact pins in Fig. 6；
Figure 10 is the cooperation schematic diagram of Fig. 6 middle sleeve and elastic valve.
Specific embodiment
The embodiment 1 of optical fiber beam expansion connector is as shown in Fig. 1 ~ 5: including connector shell (not shown) and being set to
Optical fiber beam expansion contact 20 in connector shell, optical fiber beam expansion contact 20 include lens 16, the light with contact pin ontology 13
Fine contact pin 10 and casing 6 with sleeve body 5, optical fiber contact pins are metal material, and lens are fixed on casing sheet by front end sleeve 2
The front end of body 5, lens 16 use hemispheric lens, and hemispheric lens have front end spherical surface 17 and back plan 15, and front end sleeve 2 has
There is the positioning land 1 for 17 location fit of front end spherical surface with lens, the front end of sleeve body 5 has and holds level with both hands after lens
The annular end face 3 of face location fit, the front end of sleeve body 5 are loaded on by force in front end sleeve 2, until the annular end face 3 of sleeve body
It withstands on the back plan 3 of lens 16, guarantees that the center line of sleeve body crosses the centre of sphere of lens and perpendicular to holding level with both hands after lens
Face.
The rear end tool of sleeve body 5 there are six it is circumferentially distributed can elastomeric radial elastic valve 7, contact pin ontology 13
5 rear end of slave sleeve body insertion from back to front, the periphery of contact pin ontology are provided with contact pin protrusion 11, and contact pin protrusion 11 is annular
Protrusion, the rear end of annular protrusion have the contact pin stopping surface 9 of block direction backwards, and contact pin stopping surface 9 is gradually court from front to back
The inclined-plane for the taper that contact pin body central line direction extends is provided with the holding tank for accommodating annular protrusion 11 on elastic valve 7
8, what the rear cell wall formation of holding tank 8 was adapted to contact pin stopping surface 9 is used to cooperate with contact pin stopping surface block to prevent optical fiber from inserting
The casing stopping surface 18 that needle is deviate from by sleeve body rear end from front to back, casing stopping surface 18 are also the inclined-plane of taper.Casing sheet
Be provided with casing positioning region on body 5 on rear side of lens, casing positioning region is land structure 14, the front end of contact pin ontology 13 be with
The pyramidal structure 4 of the centre bore location fit of land structure, because casing stopping surface 18 and contact pin stopping surface 9 are the pass on inclined-plane
System, elastic valve 7 can apply the active force in direction facing forward to contact pin ontology, so that the pyramidal structure 4 and land of contact pin ontology front end
The centre bore positioning of structure 14 contacts, and guarantees the positional relationship between optical fiber contact pins 10 and lens 16, it is ensured that in optical fiber contact pins
Optical fiber is coupled with lens 16.The front end face 12 of annular protrusion is gradually to extend from front to back towards far from contact pin body central line direction
Bevel structure, the gradient of the front end face of annular protrusion is less than the gradient of contact pin stopping surface, in this way can be in order to optical fiber contact pins
Insertion, the gradient of contact pin stopping surface is larger, make withdrawal force be greater than insertion force, guarantee product it is reliable and stable.
When assembly, optical fiber contact pins being inserted into the inner hole of casing from back to front, each bullet of front end face pushing tow of annular protrusion
Property valve and open elastic valve, after annular protrusion submerges holding tank, elastic valve rebound, casing stopping surface on elastic valve is to inserting
Optical fiber contact pins are applied the active force in a direction facing forward by needle stopping surface pressure, guarantee that the front end of optical fiber contact pins is contradicted in casing
On positioning region, guarantee the positional relationship between optical fiber contact pins and lens, guarantees that lens can be coupled with optical fiber contact pins.It is specifically coupled
Principle is as shown in Figure 5: Fig. 5 middle term 21 indicates the adaptation optical fiber beam expansion contact being adapted to the optical fiber beam expansion contact, the two
Structure is identical, and optical path is realized after the lens of optical fiber beam expansion contact project and expanded, and is then adapted optical fiber beam expansion contact
Lens pack realizes the transmission of optical signal.When needing to dismantle optical fiber contact pins, optical fiber contact pins, contact pin stopping surface pushing tow are pulled out backward
Casing stopping surface opens each elastic valve, can take out optical fiber contact pins.The dismounting of optical fiber contact pins is all more convenient in the present invention, together
When elasticity flap-type structure will not increase the radial dimension of optical fiber beam expansion contact, guarantee that optical fiber beam expansion contact can be normal
Use；Casing stopping surface applies active force to contact pin stopping surface, it is ensured that the exact position of optical fiber contact pins, it is ensured that optical fiber is inserted
Optical fiber and Lens Coupling in needle.In other embodiments of the invention: contact pin stopping surface and casing stopping surface may not be
The inclined-plane of taper, but the inclined-plane of planar structure；The front end of optical fiber contact pins is also possible to flush configuration；Contact pin stopping surface and set
Pipe stopping surface can also not be bevel structure, such as contact pin stopping surface and casing stopping surface are perpendicular in the front-back direction
It faces directly, at this time when dismantling optical fiber contact pins, needs to open each elastic valve, then optical fiber contact pins are pulled out
Out；Front end sleeve can also be connected on casing by bonding or threaded form；Front end sleeve can not also be set, such as lens
It can directly be adhered in the inner hole of casing；The number of elastic valve, which can according to need, to be configured, such as two, three
Or other numbers；Contact pin protrusion may not be annular protrusion, such as the circumferentially spaced arrangement of contact pin protrusion, contact pin protrusion
Number is corresponding with the elastic number of valve, and feather key, guide key groove structure can be arranged between optical fiber contact pins and casing at this time, comes
Guarantee the circumferential angular relationship between optical fiber contact pins and casing, to guarantee that each contact pin protrusion can cooperate with corresponding elastic valve；
Optical fiber contact pins can also be with ceramic material.
The embodiment 2 of optical fiber beam expansion connector is as shown in Fig. 6 ~ 10: embodiment 2 unlike the first embodiment, contact pin ontology
Contact pin protrusion is not provided on 13, but the contact pin groove 25 being arranged, contact pin stopping surface 9 are formed by the preceding cell wall of contact pin groove,
It is provided with casing protrusion 26 on corresponding elasticity valve 7, casing stopping surface 18 is formed by the front end face of casing protrusion 26.Figure middle term 5
Indicate sleeve body.
The implementation of optical fiber beam expansion contact is for example shown in Fig. 1 ~ 10: the specific structure of optical fiber beam expansion contact and above-mentioned each light
Fine beam expansion connector optical fiber beam expansion contact as described in the examples is identical, and this will not be detailed here.
The implementation of optical fiber contact pins is for example shown in Fig. 1 ~ 10: the specific structure of optical fiber contact pins and above-mentioned each optical fiber beam expansion connector
Optical fiber contact pins as described in the examples are identical, and this will not be detailed here.
The implementation of casing is for example shown in Fig. 1 ~ 10: in the specific structure of casing and above-mentioned each optical fiber beam expansion connector embodiment
The casing is identical, and this will not be detailed here.
Claims (4)
1. optical fiber beam expansion contact, including lens, optical fiber contact pins and with the casing of sleeve body, lens are set to described sleeve pipe
The front end of ontology, it is characterised in that: the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial
Elastic valve, the contact pin ontology of optical fiber contact pins be provided with block direction backwards be used for and the casing stopping surface block in sleeve body
The contact pin stopping surface of cooperation, contact pin body peripheral are provided with contact pin protrusion or contact pin groove, and contact pin stopping surface is by contact pin protrusion
The preceding cell wall of rear end face or contact pin groove is formed, and is provided with casing positioning region, contact pin in sleeve body on rear side of the lens
Stopping surface is the inclined-plane gradually extended from front to back towards contact pin body central line direction, casing stopping surface and the contact pin stopping surface
Adaptation withstands on contact pin ontology front end on described sleeve pipe positioning region to apply direction active force facing forward to contact pin ontology, the set
Pipe positioning region is land structure, and the front end of contact pin ontology is the pyramidal structure with the centre bore location fit of the land structure,
Contact pin protrusion is annular protrusion, and the holding tank for accommodating annular protrusion is provided on elastic valve, and the rear cell wall of holding tank is formed
After what is be adapted to contact pin stopping surface is used to cooperate with contact pin stopping surface block to prevent optical fiber contact pins from front to back by sleeve body
The casing stopping surface of abjection is held, casing stopping surface is the inclined-plane of taper, because casing stopping surface and contact pin stopping surface are inclined-plane
Relationship, elastic valve can apply the active force in direction facing forward to contact pin ontology, so that the pyramidal structure and ring of contact pin ontology front end
The centre bore positioning of platform structure contacts, and guarantees the positional relationship between optical fiber contact pins and lens, it is ensured that the optical fiber in optical fiber contact pins
With Lens Coupling, the front end face of annular protrusion is the inclined-plane knot for being gradually distance from the extension of contact pin body central line direction from the front to the back
Structure, the gradient of the front end face of annular protrusion are less than the gradient of contact pin stopping surface.
2. the optical fiber contact pins of optical fiber beam expansion contact, rear end the inserting for the insertion of corresponding optical fiber extended along the longitudinal direction including axis
Needle ontology, it is characterised in that: be provided on contact pin ontology block direction backwards be used for and the casing stopping surface in sleeve body
The contact pin stopping surface of block cooperation, contact pin body peripheral is provided with contact pin protrusion or contact pin groove, contact pin stopping surface are convex by contact pin
The preceding cell wall of the rear end face or contact pin groove that rise is formed, and contact pin stopping surface is from front to back gradually towards contact pin body central line direction
The inclined-plane of extension, contact pin protrusion are annular protrusion, and the front end face of annular protrusion is to be gradually distance from contact pin body central from the front to the back
The bevel structure that line direction extends, the gradient of the front end face of annular protrusion are less than the gradient of contact pin stopping surface.
3. the casing of optical fiber beam expansion contact is used to connect the casing sheet of lens including the front end that axis extends along the longitudinal direction
Body, it is characterised in that: the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial elastic valve, bullet
Property valve on be provided with for contact pin protrusion on contact pin stopping surface block cooperate to prevent optical fiber contact pins from front to back by described
The casing stopping surface of sleeve body rear end abjection, contact pin protrusion are annular protrusion, are provided on elastic valve for accommodating convex annular
The holding tank risen, what the rear cell wall formation of holding tank was adapted to contact pin stopping surface is used to cooperate with contact pin stopping surface block to prevent
The casing stopping surface that optical fiber contact pins are deviate from by sleeve body rear end from front to back is provided with casing positioning region in sleeve body, covers
Pipe stopping surface is to make contact pin ontology front end for being adapted to contact pin stopping surface to apply direction active force facing forward to contact pin ontology
The inclined-plane on described sleeve pipe positioning region is withstood on, described sleeve pipe positioning region is land structure, and the front end of contact pin ontology is and the ring
The pyramidal structure of the centre bore location fit of platform structure, because casing stopping surface and contact pin stopping surface are oblique relation of plane, bullet
Property valve can apply the active force in direction facing forward to contact pin ontology, the front end face of annular protrusion is to be gradually distance from contact pin sheet from the front to the back
The bevel structure that body centerline direction extends, the gradient of the front end face of annular protrusion are less than the gradient of contact pin stopping surface.
4. optical fiber beam expansion connector, it is characterised in that: including optical fiber beam expansion contact as described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610967064.8A CN106383381B (en) | 2016-10-28 | 2016-10-28 | Optical fiber beam expansion connector and its optical fiber beam expansion contact, optical fiber contact pins and casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610967064.8A CN106383381B (en) | 2016-10-28 | 2016-10-28 | Optical fiber beam expansion connector and its optical fiber beam expansion contact, optical fiber contact pins and casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106383381A CN106383381A (en) | 2017-02-08 |
| CN106383381B true CN106383381B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610967064.8A Active CN106383381B (en) | 2016-10-28 | 2016-10-28 | Optical fiber beam expansion connector and its optical fiber beam expansion contact, optical fiber contact pins and casing |
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| Country | Link |
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| CN (1) | CN106383381B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6775783B2 (en) * | 2017-09-21 | 2020-10-28 | 矢崎総業株式会社 | Optical connector device |
| CN109932781A (en) * | 2017-12-19 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of optical fiber connector and its eccentric contact is expanded in parallel |
| WO2020245867A1 (en) * | 2019-06-03 | 2020-12-10 | 日本電信電話株式会社 | Optical fiber connection structure |
| US20220236488A1 (en) * | 2019-06-03 | 2022-07-28 | Nippon Telegraph And Telephone Corporation | Optical Fiber Guide Structure and Optical Fiber Connecting Structure |
| CN110927892B (en) * | 2019-12-19 | 2021-12-07 | 武汉邮埃服光电科技有限公司 | Optical fiber connector assembly |
| CN112122769B (en) * | 2020-09-23 | 2024-06-25 | 苏州万智新能源科技有限公司 | Coping ware, coping device and friction stir welding system |
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|---|---|---|---|---|
| US4807958A (en) * | 1986-05-19 | 1989-02-28 | Societa' Cavi Pirelli S.P.A. | Method of interconnecting optical fiber cables and connector therefor |
| US5579423A (en) * | 1994-08-03 | 1996-11-26 | Lederle (Japan), Ltd. | Optical fiber laser device |
| CN101241211A (en) * | 2007-02-08 | 2008-08-13 | 中航光电科技股份有限公司 | Rear jacket stationary type fiber optic cable connector contact member |
| EP2270561B1 (en) * | 2009-06-30 | 2012-07-25 | Fibreco Limited | Optical fibre connector with stub and lens for beam expanding and method of manufacturing |
| CN105044853A (en) * | 2015-06-28 | 2015-11-11 | 中航光电科技股份有限公司 | Optical fiber contact member part |
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2016
- 2016-10-28 CN CN201610967064.8A patent/CN106383381B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4807958A (en) * | 1986-05-19 | 1989-02-28 | Societa' Cavi Pirelli S.P.A. | Method of interconnecting optical fiber cables and connector therefor |
| US5579423A (en) * | 1994-08-03 | 1996-11-26 | Lederle (Japan), Ltd. | Optical fiber laser device |
| CN101241211A (en) * | 2007-02-08 | 2008-08-13 | 中航光电科技股份有限公司 | Rear jacket stationary type fiber optic cable connector contact member |
| EP2270561B1 (en) * | 2009-06-30 | 2012-07-25 | Fibreco Limited | Optical fibre connector with stub and lens for beam expanding and method of manufacturing |
| CN105044853A (en) * | 2015-06-28 | 2015-11-11 | 中航光电科技股份有限公司 | Optical fiber contact member part |
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| Publication number | Publication date |
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| CN106383381A (en) | 2017-02-08 |
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