CN104656199B - There is the fiber adapter of shading piece - Google Patents
There is the fiber adapter of shading piece Download PDFInfo
- Publication number
- CN104656199B CN104656199B CN201310579057.7A CN201310579057A CN104656199B CN 104656199 B CN104656199 B CN 104656199B CN 201310579057 A CN201310579057 A CN 201310579057A CN 104656199 B CN104656199 B CN 104656199B
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- China
- Prior art keywords
- wall
- pothook
- fiber adapter
- opening
- passage
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Classifications
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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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Fiber adapter of the present invention includes the pars intermedia of body, the first pothook, the second pothook, hollow and has flexible shading piece. Two pothooks can be inserted in the passage of body by the opening that accesses from body the first wall. Each pothook includes two relative grabs and two the first relative walls and the second wall, and wherein the first wall of each pothook and the second wall and two grabs define passage jointly. The pars intermedia of hollow can be inserted in the passage of body by the opening that accesses from body the first wall. Having flexible shading piece comprises: fixed part, is arranged in the recess on first pothook the first wall; Light shielding part, is arranged in the passage of the first pothook, the propagation path in order to blocking by emitted light beam in this passage; And connecting portion, be connected with light shielding part and fixed part.
Description
Technical field
The present invention relates to a kind of fiber adapter, more particularly relate to a kind of fiber adapter with shading piece.
Background technology
Because optical fiber has high frequency range, low-loss advantage, in recent years extensively as the transmission medium of signal. For making signal can be sent to farther distance, high-power laser diode just arises, thereby the energy that is coupled to optical fiber is greatly increased. But when above-mentioned high-intensity infrared beam is penetrated by one end of optical fiber, human eye the existence that cannot judge light beam whether, if operator's eyes are directly exposed under light beam accidentally, often can cause the permanent injury of eyesight.
As shown in Figure 1, known fiber adapter (fiberadapter) 100 has body 110, body 110 be provided with by 160 of multiple sidewalls around passage 120, can be connected with the joints of optical fibre (fiberconnector) 190 of docking respectively. On sidewall 160, offer breach 130, by breach 130 can with projection 192 clampings on the connector 190 docking, there is the function of contraposition. In addition, the outside of two opposing sidewalls 160 is provided with recess 140, can install clamping shell fragment (not shown) on it, in order to help the location of adapter 100 in the time that assembling is used. In the time that the joints of optical fibre 190 insert the passage 120 of adapter 100, the high power-beam penetrating from sleeve pipe (ferrule) 196 end faces via the tail optical fiber (pigtail) 194 of connector 190, can be through the passage 120 of adapter 100 other ends, if without the obstruct of veil, likely direct irradiation, on eyes, causes the impaired of eyesight. In general, the passage 120 of not plugging connector 190 can clog with stopper 180, to prevent the pollution of dust and to cover light beam, in the time wanting to plug connector 190, then stopper 180 is taken off. But above-mentioned stopper 180 is easily lost and dropped, and in the process of taking off, human eye is also likely exposed under the light beam that connector 190 conducts.
As shown in Figure 2, a kind of known fiber adapter 200 with shaded effect, arranges and hides 250 at the openend of passage 120, and one side is articulated in body 110, utilize the elastic force of torque spring 260 to make to hide 250 openends that cover passage 120, to prevent the ejaculation of light beam. If wish is inserted the joints of optical fibre 190 in passage 120, need first covering 250 to be started, connector 190 could be inserted. The above-mentioned adapter 200 with covering 250, processes its body 110, just can make to hide 250 pivot joints thereon. Therefore, the making of adapter 200 is comparatively complicated, and cost is also relatively high.
As shown in Figure 3, a kind of known protector 300 that the is used in fiber adapter 100 therein openend of empty cover body 310 arranges and hides 350, hide a side of 350 and be articulated in cover body 310, utilize the elastic force of torque spring 360 to make to hide 350 openends that cover cover body 310. The cover body 310 of hollow can be enclosed within on the body 110 of adapter 100, to cover the opening of breach 130 and passage 120, prevents the ejaculation of light beam and avoids the pollution of dust. But, if only require to have the function of shading, above-mentioned protector 300 complex structure that also seems, manufacturing cost is also relatively high.
In view of this, just have and need to propose a kind of scheme, to address the above problem.
Summary of the invention
The object of the present invention is to provide a kind of fiber adapter, can cover the light beam emitted by passage, avoid thus light beam to injure eyes.
For reaching above-mentioned purpose, fiber adapter of the present invention includes the pars intermedia of body, the first pothook, the second pothook, hollow and has flexible shading piece. Body has axial passage, is to be defined and formed by the first wall, the second wall, the 3rd wall and wall, and wherein the first wall is relative with the 3rd wall, and is connected with the second wall and wall. Two axial ends of passage have respectively the first opening and the second opening, and are provided with and access opening on the first wall. The first pothook and the second pothook can be inserted in the passage of body by the opening that accesses from body the first wall. Each pothook includes two relative grabs and two the first relative walls and the second wall, and wherein grab is in order to be stuck on the recess of the joints of optical fibre, and the first wall of each pothook and the second wall and two grabs define passage jointly. On the first wall of the first pothook, be formed with recess. The pars intermedia of hollow can be inserted in the passage of body by the opening that accesses from body the first wall, and wherein, in the time that two pothooks and pars intermedia are inserted in the passage of body, middle part is between two pothooks. Having flexible shading piece comprises: fixed part, is arranged in the recess on first pothook the first wall; Light shielding part, is arranged in the passage of the first pothook, the propagation path in order to blocking by emitted light beam in this passage; And connecting portion, be connected with light shielding part and fixed part.
In order to allow above and other objects of the present invention, feature and the advantage can be more obvious, the embodiment of the present invention cited below particularly, and coordinate appended diagram, be described in detail below.
Brief description of the drawings
Fig. 1 is the stereogram of known fiber adapter and the joints of optical fibre.
Fig. 2 is the stereogram of the known fiber adapter with shaded effect.
Fig. 3 is the stereogram of the known protector that is used in fiber adapter.
Fig. 4 is the stereogram of the known MPO type joints of optical fibre.
Fig. 5 is the stereogram of the body of fiber adapter of the present invention.
Fig. 6 is the cover plate of fiber adapter of the present invention and the stereogram of pars intermedia.
Fig. 7 is a stereogram of the pothook of fiber adapter of the present invention.
Fig. 8 is another stereogram of the pothook of fiber adapter of the present invention.
Fig. 9 is the stereogram of the shading piece of fiber adapter of the present invention.
Figure 10 shows that the shading piece of fiber adapter of the present invention is installed in a stereogram of pothook.
Figure 11 shows that the shading piece of fiber adapter of the present invention is installed in another stereogram of pothook.
Figure 12 shows how to pack the shading piece of fiber adapter of the present invention and pothook into intrinsic stereogram.
Figure 13 is the stereogram of fiber adapter of the present invention.
Figure 14 to Figure 15 demonstration is inserted the joints of optical fibre in fiber adapter of the present invention.
Detailed description of the invention
As shown in Figure 4, the bare front end of the known MPO type joints of optical fibre 900 goes out to have multifiber 930, and on the upper surface of body 910, is formed with the projection 912 of strip. In addition, on the both sides of body 910, be respectively formed with recess 914.
As shown in Figure 5, the fiber adapter with shading piece of the present invention, for example, be that MPO type fiber adapter includes with Mold for Plastics appearance to become and rectangular body 500 haply. Body 510 has roof 511, diapire 512, right wall 513 and left wall 514, jointly define axial passage 515, it has two the first relative openings 517 and the second opening 518 at axial direction, can supply respectively the joints of optical fibre, for example that the MPO type joints of optical fibre 900 shown in Fig. 4 are from wherein inserting in passage 515, to dock with the joints of optical fibre on opposite. Body 500 outsides are provided with a pair of lug 501 and 503, wherein 501 of lugs on left wall 514, lug 503 position on right wall 513. Lug 501 and 503 is for fixing fiber adapter from the teeth outwards. In addition, on the roof 511 of body 500, offer and access opening 550.
On the left wall 514 and right wall 513 of contiguous the second opening 518, be respectively arranged with one section of projection 562 and 566; And on the left wall 514 and right wall 513 of contiguous the first opening 517, be respectively arranged with one section of projection 564 and 568. In addition, on the roof 511 of contiguous the second opening 518, be formed with recess 522; And on the roof 511 of contiguous the first opening 517, be formed with recess (not shown). In addition,, on the diapire 512 of contiguous the second opening 518, be formed with two projections that are oppositely arranged 534. On left wall 514 and right wall 513, be formed with multiple perforates 508.
As shown in Figure 6, fiber adapter of the present invention also includes cover plate 600, is provided with the pars intermedia 610 of hollow on this cover plate 600, is integrally formed with cover plate 600. On the outer surface of pars intermedia 610, be formed with projection 612, and on the inner surface of pars intermedia 610, be formed with recess 614. In addition, be also provided with multiple projections 602 on cover plate 600, its position corresponds to the perforate 508 on body 500.
As shown in Figure 7 and Figure 8, fiber adapter of the present invention also includes two identical pothooks 710,720, and its mode plastics with ejection formation form. Two pothooks 710,720 respectively dispose two grabs 712 that are oppositely arranged, and are used for being stuck on the recess 914 of the joints of optical fibre 900. Grab 712 is extended by roughly orthogonal flange 750, on each flange 750, is respectively formed with roughly orthogonal opening 752, and position is between two grabs 712. In addition, on each flange 750, also extend and have two walls that are oppositely arranged 740 and 741, and jointly define roughly orthogonal passage 730 with grab 712. On the outside of the wall 740 of each flange 750, be formed with projection 742, its width is less than the spacing between width and the projection 534 of the recess 522 on body 500. On the inner side of the wall 740 of each flange 750, be formed with recess 744, its width is greater than the projection 912 on the joints of optical fibre 900 shown in Fig. 4. On the inner side of the wall 741 of each flange 750, be formed with recess 762, this recess 762 is rectangle haply, the lateral sidewalls 767 that has a pair of axial side wall paralleling 764 and be connected with sidewall 764. Extend and have roof 765 from the top of each sidewall 764, these two roofs 765 extend relatively, and are parallel to haply the diapire 763 of recess 762. That is to say, between diapire 763, sidewall 764 and affiliated roof 765, be formed with groove 766. In addition, in recess 762, be formed with at least one block 780. In addition, on each diapire 763, be formed with breach 745, be extended with cantilever 746 from diapire 763 to breach 745, it is parallel to sidewall 764 haply. On cantilever 746, be formed with projection 747, projection 747 is being formed with inclined-plane 748 away from the one side of sidewall 767.
As shown in Figure 9, fiber adapter of the present invention also includes one and has flexible shading piece 800, and it is integrally formed by metal. The connecting portion 873 that shading piece 800 has light shielding part 872, fixed part 871 and is connected with light shielding part 872 and fixed part 871. Connecting portion 873 is U font haply, and it has breach 876. Fixed part 871 is rectangular haply, is formed with opening 874 on it, is used for holding the projection 747 on pothook 710,720. Fixed part 871 has a pair of axial side 882 and a pair of horizontal side 881, and wherein transverse sides 881 is connected to connecting portion 873, and protrudes from connecting portion 873. And light shielding part 872 can be connected to form by a slice flat board or by the dull and stereotyped institute of multi-disc, this light shielding part 872 can move with respect to fixed part 871. In the time that light shielding part 872 is subject to thrust, it can press close to fixed part 871; And after thrust disappears, light shielding part 872 can be because the elastic returning of self be to original position.
In the time of assembling fiber adapter of the present invention, towards one of them pothook, for example, be that the recess 762 of pothook 710 pushes by shading piece 800. In push-on process, connecting portion 873 can first be encountered the projection 747 on cantilever 746. Because cantilever 746 can press down, the connecting portion 873 of shading piece 800 and fixed part 871 can successively slide on the inclined-plane 748 of projection 747, and projection 747 is pressed down. At the same time, two of fixed part 871 axial sides 882 can push respectively in two grooves 766. Finally, the projection 747 on cantilever 746 can rebound and penetrate in the opening 874 of fixed part 871, forms structure as shown in Figures 10 and 11.
Then in mode as shown in figure 12, the pothook with shading piece 800 710 and another pothook 720 are inserted in the passage 515 of body 500 by the opening 550 that accesses on body 500, make to insert the recess of position on the roof 511 at contiguous the first opening 517 places with the projection 742 on the pothook 710 of shading piece 800, the projection 742 on another pothook 720 is inserted between two projections 534. Then pars intermedia 610 is inserted in the passage 515 of body 500 by accessing opening 550, and be arranged between the flange 750 of two pothooks 710,720. When pars intermedia 610 is inserted after passage 515, can contact with the flange 750 of two pothooks 710,720, and two pothooks 710,720 are pushed towards the first opening 517 and second opening 518 of body 500 respectively, be resisted against in the projection 564 and 568 of body 500 with the flange 750 of the pothook 710 of shading piece 800 making, the flange 750 of another pothook 720 is resisted against in projection 562 and 566. So, two pothooks 710,720 and pars intermedia 610 can firmly be fixed in passage 515 and can not rock.
When pars intermedia 610 is inserted in passage 515, cover plate 600 can cover and access opening 550, and mode that can ultrasonic welding is fixed on body 500. For more firmly being covered, cover plate 600 accesses opening 550, the projection 602 on cover plate 600. When cover plate 600 covers while accessing on opening 550, projection 602 can embed and be formed on left wall 514 and corresponding perforate 508 on right wall 513. Figure 13 is the fiber adapter that shows that the present invention assembles.
As shown in Figure 14 and Figure 15, in the time that the joints of optical fibre 900 dock with fiber adapter of the present invention, do not need first shading piece 800 to be taken off, directly the joints of optical fibre 900 are inserted in the passage 515 of body 500, at this moment light shielding part 872 can be taken advantage of a situation and be clamp-oned in the space between the joints of optical fibre 900 and body diapire 512. If by the joints of optical fibre 900 drawn optical fiber adapters, 872 of light shielding parts can be because the back stretch of self returns back to original position, has again the function of blocking light beam.
According to fiber adapter of the present invention, in the time that shading piece 800 arrives location, light shielding part 872 can block passage 515, can therefore interdict by wherein emitted light beam, avoids thus light beam to injure eyes.
According to fiber adapter of the present invention, because 747 of projections on pothook 710 are in the opening 874 of shading piece 800, in the time that the joints of optical fibre insert body 500, after can stopping that shading piece 800 is pushed to. And the effect of block 780 is in the time that shading piece 800 pulls, the side 881 of its fixed part 871 can arrive to block 780, prevents that thus shading piece 800 from pulling out body 510 from the first opening 517. In addition, the effect of the sidewall 767 of recess 762 is as one revetment, prevents that the unmatched joints of optical fibre from inserting body 500 when interior, directly strikes and damages the connecting portion 873 of shading piece 800. In addition,, below 882 roofs 765 at pothook 710 of two sides of fixed part 871, therefore can prevent that shading piece 800 from upwards pulling.
Though the present invention does example explanation with the fiber adapter of MPO type, persond having ordinary knowledge in the technical field of the present invention should be appreciated that, still can be the fiber adapter of other pattern according to fiber adapter of the present invention.
Although the present invention discloses with previous embodiment, it is not in order to limit the present invention, any persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when doing various changes and amendment. Therefore protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.
Description of reference numerals
100 fiber adapter
110 bodies
120 rooms
130 breach
140 recesses
160 sidewalls
170 grooves
180 stoppers
190 joints of optical fibre
192 projections
194 tail optical fibers
196 sleeve pipes
200 fiber adapter
250 hide
260 torque springs
300 protectors
310 cover bodies
350 hide
360 torque springs
500 bodies
501 lugs
503 lugs
508 perforates
511 roofs
512 diapires
513 right walls
514 left walls
515 passages
517 first openings
518 second openings
522 recesses
534 projections
550 access opening
562 projections
564 projections
566 projections
568 projections
600 cover plates
602 projections
610 pars intermedias
612 projections
614 recesses
710 pothooks
720 pothooks
712 grabs
730 passages
740 walls
741 walls
742 projections
744 recesses
745 breach
746 cantilevers
747 projections
748 inclined-planes
750 flanges
752 openings
762 recesses
763 diapires
764 sidewalls
765 roofs
766 grooves
767 sidewalls
780 blocks
800 shading pieces
871 fixed parts
872 light shielding parts
873 connecting portions
874 openings
876 breach
881 sides
882 sides
900 joints of optical fibre
910 bodies
912 projections
914 recesses
930 optical fiber
Claims (10)
1. a fiber adapter, uses so that two joints of optical fibre dock each these joints of optical fibreComprise two recesses, described fiber adapter comprises:
Body, has axial passage, and this body comprises the first wall, the second wall, the 3rd wall and wall,Wherein said the first wall is relative with described the 3rd wall, and is connected with described the second wall and wall, described logicalTwo axial ends in road have respectively the first opening and the second opening, and the described joints of optical fibre can be by describedOne opening or the second opening insert in described passage, and described the first wall is provided with and accesses opening;
Two pothooks, are defined as respectively the first pothook and the second pothook, described two pothook energyEnough openings that accesses from the first wall of this body are inserted in the passage of this body, pothook bag described in eachDraw together two relative grabs and two the first relative walls and the second wall, wherein said grab is in order to cardAt the recess of the described joints of optical fibre, and the first wall and the second wall and two grabs of pothook described in eachJointly define passage, on the first wall of wherein said the first pothook, be formed with recess; And
Have flexible shading piece, this shading piece comprises:
Fixed part, this fixed part is arranged in the recess on described first pothook the first wall;
Light shielding part, this light shielding part is arranged in the passage of described the first pothook, in order to blocking by institute whereinThe propagation path of outgoing beam; And
Connecting portion, this connecting portion is connected with described light shielding part and described fixed part;
It is characterized in that, described fiber adapter also comprises: the pars intermedia of hollow, and can be from described bodyThe first wall on the opening that accesses insert in the passage of described body, wherein when described two pothooks and instituteWhen stating pars intermedia and inserting in the passage of described body, described middle part is between described two pothooks.
2. fiber adapter according to claim 1, shape on the fixed part of wherein said shading pieceBecome to have opening, in the recess on the first wall of described the first pothook, be formed with projection, position is described fixingIn the opening of portion.
3. fiber adapter according to claim 2, the first wall of wherein said the first pothookOn extend and have cantilever, the projection of position in described fixed part opening is arranged on described cantilever.
4. fiber adapter according to claim 3, wherein this cantilever is from this first pothookBreach on the first wall extends.
5. fiber adapter according to claim 1, the first wall of wherein said the first pothookOn be formed with two grooves, two relative sides of described fixed part respectively position in described two grooves.
6. fiber adapter according to claim 1, on wherein said first pothook the first wallRecess in be formed with block, open towards first of described body in order to the fixed part that limits described shading pieceMouth is mobile.
7. fiber adapter according to claim 1, is wherein positioned at described fixed part openingIn projection, be formed with inclined-plane.
8. fiber adapter according to claim 1, wherein described in each, pothook also comprises protrudingEdge, described in each, the first wall of pothook and the second wall and grab are extended by its flange, and described in eachOn flange, be formed with opening, between described grab.
9. fiber adapter according to claim 8, the second wall of wherein said body and the 4thOn wall, be respectively formed with two projections, when described two pothooks and described pars intermedia are inserted the logical of described bodyIn road time, the flange of described two pothooks is resisted against prominent on the second wall of described body and wallRise.
10. fiber adapter according to claim 1, wherein this fiber adapter is MPO typeFiber adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310579057.7A CN104656199B (en) | 2013-11-15 | 2013-11-15 | There is the fiber adapter of shading piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310579057.7A CN104656199B (en) | 2013-11-15 | 2013-11-15 | There is the fiber adapter of shading piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104656199A CN104656199A (en) | 2015-05-27 |
| CN104656199B true CN104656199B (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310579057.7A Active CN104656199B (en) | 2013-11-15 | 2013-11-15 | There is the fiber adapter of shading piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104656199B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI600935B (en) * | 2016-03-18 | 2017-10-01 | 普泰光電股份有限公司 | Optical fiber adapter with shutter member |
| CN111133350A (en) | 2017-09-20 | 2020-05-08 | 莫列斯有限公司 | Light blocking shutter for fiber optic adapter |
| CN110488423B (en) * | 2018-05-14 | 2021-11-05 | 杨沐晨 | Optical fiber adapter and optical fiber connector |
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| TW200736683A (en) * | 2006-03-20 | 2007-10-01 | Enmart Productsco Ltd | Fiber adapter and shutter member thereof |
| CN202025110U (en) * | 2011-03-18 | 2011-11-02 | 上海宽岱电讯科技发展有限公司 | Protective SC interface optical fiber adapter |
| CN102879866A (en) * | 2011-07-11 | 2013-01-16 | 东侑光电股份有限公司 | Fiber adapter |
| CN103018841A (en) * | 2011-09-21 | 2013-04-03 | 普泰光电股份有限公司 | Optical fiber adapter with shading piece |
| CN103018842A (en) * | 2011-09-21 | 2013-04-03 | 普泰光电股份有限公司 | Optical fiber adapter with shading piece |
| CN103389544A (en) * | 2012-05-09 | 2013-11-13 | 东侑光电股份有限公司 | One-piece type optical fiber adaptor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688780B2 (en) * | 2002-02-07 | 2004-02-10 | Amphenol Corporation | Cantilevered shutter for optical adapter |
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2013
- 2013-11-15 CN CN201310579057.7A patent/CN104656199B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200736683A (en) * | 2006-03-20 | 2007-10-01 | Enmart Productsco Ltd | Fiber adapter and shutter member thereof |
| CN202025110U (en) * | 2011-03-18 | 2011-11-02 | 上海宽岱电讯科技发展有限公司 | Protective SC interface optical fiber adapter |
| CN102879866A (en) * | 2011-07-11 | 2013-01-16 | 东侑光电股份有限公司 | Fiber adapter |
| CN103018841A (en) * | 2011-09-21 | 2013-04-03 | 普泰光电股份有限公司 | Optical fiber adapter with shading piece |
| CN103018842A (en) * | 2011-09-21 | 2013-04-03 | 普泰光电股份有限公司 | Optical fiber adapter with shading piece |
| CN103389544A (en) * | 2012-05-09 | 2013-11-13 | 东侑光电股份有限公司 | One-piece type optical fiber adaptor |
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| Publication number | Publication date |
|---|---|
| CN104656199A (en) | 2015-05-27 |
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Effective date of registration: 20211129 Address after: The way Chinese Taiwan New Taipei City in Xinzhuang District No. 8 Lane 46 Patentee after: PROTAI PHOTONIC Co.,Ltd. Address before: The way Chinese Taiwan New Taipei City in Xinzhuang District No. 8 Lane 46 Patentee before: PROTAI PHOTONIC Co.,Ltd. Patentee before: Fan Hong Kong dollar device Co., Ltd |
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