CN2522903Y - Photo adaptor with attenuation function - Google Patents
Photo adaptor with attenuation function Download PDFInfo
- Publication number
- CN2522903Y CN2522903Y CN 01258267 CN01258267U CN2522903Y CN 2522903 Y CN2522903 Y CN 2522903Y CN 01258267 CN01258267 CN 01258267 CN 01258267 U CN01258267 U CN 01258267U CN 2522903 Y CN2522903 Y CN 2522903Y
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- China
- Prior art keywords
- light
- movable sleeve
- tube stent
- sleeve tube
- attenuation function
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Abstract
A light adapter with the attenuation function consists of a fixed base, a movable coordination part, a movable sleeve stands, a collimation sleeve and an adjusting device. An optical fiber connector plug can be matched with the fixed base and the movable coordination part respectively; the adjusting device can coordinate with the movable sleeve stands thread and rotate so as to lead the movable coordination part and the optical fiber connector plug thereof to move towards the axial direction, meanwhile, the two optical fiber connector plug produces relative air gap in the collimation sleeve so as to form the attenuation of optical signal.
Description
[technical field]
The utility model is about a kind of smooth breakout box, particularly about a kind of light breakout box of tool adjustable damping function.
[background technology]
Optical attenuator is a kind of important optical passive component that occurs along with the optical communication career development, it is usually used in optical communication line, the system, to absorb or the reflecting part luminous energy realizes decay to light signal strength, with the demand of compliance with system, also or be used for loss, emulation and all kinds of optical communication experiment of evaluating system.
The optical attenuator kind is more, and the principle of work of dissimilar optical attenuators has nothing in common with each other.The displacement type optical attenuator promptly is wherein one type, and it is the dislocation that utilizes two butt joint optical fiber, makes the part light energy losses, to reach the purpose of control light decrement.Two butt joint optical fiber generally have two kinds of dislocation states, that is: transversion malposition and axially dislocation.For this kind displacement type optical attenuator is applied in the optical communication system, make the kenel of connector or breakout box, to be connected with general optical fiber connector formation in the system more.
As shown in Figure 1, light beam coupling synoptic diagram when being two butt joint optical fiber transversion malpositions, wherein, when light beam transfers to second optical fiber, 82 end faces by first optical fiber 81 through transversion malposition d, with respect to second fiber core, the field distribution of incident beam mould changes, and makes mould field mismatch and the loss that produces the light signal energy, and then realizes the decay to light signal.As United States Patent (USP) the 5th, 263, the prior art that is disclosed for No. 106 promptly is to utilize the design of this principle.
But the number of parameters level of optical fiber transversion malposition is-, so, be difficult to make adjustable optical attenuator, and only be used to make fixed optical attenuator usually with it.
As shown in Figure 2, be the light beam coupling synoptic diagram of two butt joint fiber axiss when dislocation, wherein, first optical fiber 91 and second optical fiber 92 form a gap S on axis direction, and light beam also can produce the loss of luminous energy by this gap S.According to Gaussian beam mismatch principle, can obtain the butt joint loss L between two butt joint single-mode fibers as shown in Figure 3
SWith the graph of relation of end play S, its end play can cause 0 to 26dB damping capacity 0 to 2.5mm the time.
Adopt when axially the dislocation principle is made optical attenuator, only need utilize mechanical system that two optical fiber are drawn back certain distance and also keep axially aligning, can realize the optical attenuation purpose.This kind principle is easy to realize the making of variable optical attenuator, and can match with the structure of the joints of optical fibre, forms plug-type or socket-type optical attenuator.
As shown in Figure 4, be United States Patent (USP) the 4th, 666, the socket-type optical attenuator that is disclosed for No. 243, it connects and collimates two optical fiber, 1,2, two termination sleeves 4,5 and can cooperate with the connector (dotted portion) of fixing optical fiber 1,2 respectively by a sleeve 3; And, termination sleeve 5 and termination sleeve 4 threaded engagement, when 1,2 of two optical fiber are adjusted to predetermined attenuation value apart from d, lock nut 6 screw in termination sleeves 4 and with termination sleeve 5 against, thereby the fixed light damping capacity.
The optical attenuator that this patent disclosed only mentions it being to regulate by termination sleeve 5, still to the adjusting of light decrement in its instructions, it does not disclose the regulative mode to this termination sleeve 5, and, when regulating this termination sleeve 5, drive the connector that is fitted thereon probably and rotate together.During as contact of two optical fiber, 1,2 end faces and relative rotation, very easily cause the wearing and tearing of two optical fiber, 1,2 end faces, and influence the angle of two optical fiber, 1,2 end faces butt joint, and then influence the optical attenuation precision.In conjunction with its global design, this patent is in implementation process, and operation is comparatively complicated, is difficult for the continuous adjusting of realization to light decrement.
[summary of the invention]
The purpose of this utility model is to provide a kind of light breakout box that two butt joint optical fiber rotate and prevent the tool variable attenuation function of two butt joint fiber end face wearing and tearing relatively that limits.
For realizing the utility model purpose, the light breakout box of the utility model tool attenuation function comprises fixed pedestal, movable counterpart, movable sleeve tube stent, collimation sleeve and regulating device.The fixed pedestal of this light breakout box and movable counterpart respectively cooperate an optical fiber connector plug, and this regulating device and this movable sleeve tube stent threaded engagement have stop collar to cooperate with the movable sleeve tube stent simultaneously.When this regulating device is rotated with respect to the movable sleeve tube stent, this stop collar restriction movable sleeve tube stent rotates with regulating device, to guarantee that movable counterpart and the optical fiber connector plug that is fitted thereon only axially move forward and backward, and make two relative optical fiber connector plugs in the collimation sleeve, produce relative clearance, thereby form decay to the luminous energy transmission.The light breakout box of the utility model tool attenuation function is tool two gib screws in addition, it is assemblied in light breakout box fixed pedestal, and can cooperate with regulating device, when regulating device is regulated light decrement, one screw can make regulating device only transfer outwards not come off in the fixed pedestal inward turning, another screw then is used for when regulating device rotates to required pad value the locking to regulating device, and is stable to keep pad value.
Compared to prior art, the utlity model has and have following advantage: because of the light breakout box of the utility model tool attenuation function is regulated the end play of an optical fiber connector plug end face with respect to another plug end face continuously by regulating device, limit the relative rotation of two fiber end faces simultaneously, so can prevent the wearing and tearing of two fiber end faces, guarantee the angle and the optical attenuation precision of two fiber end faces butt joints simultaneously, have advantages such as damping capacity is adjustable, stable.
[description of drawings]
Fig. 1 is the light beam coupling synoptic diagram of two butt joint optical fiber when transversion malposition.
Fig. 2 is the light beam coupling synoptic diagram of two butt joint optical fiber when axially misplacing.
Fig. 3 is two butt joint single-mode fibers butt joint loss L when axially misplacing
SGraph of relation with end play S.
Fig. 4 is that prior art adopts axially dislocation to carry out the cut-open view of the optical attenuator device of luminous energy adjusting.
Fig. 5 is the three-dimensional exploded view of the light breakout box of the utility model tool attenuation function.
Fig. 6 is the light breakout box movable sleeve tube stent of the utility model tool attenuation function and the three-dimensional combination figure of movable counterpart.
Fig. 7 is the sectional view of Fig. 6 along the A-A direction.
Fig. 8 is the light breakout box regulating device of the utility model tool attenuation function and the three-dimensional combination figure of movable sleeve tube stent, movable counterpart, stop collar and snap ring.
Fig. 9 is the sectional view of Fig. 8 along the B-B direction.
Figure 10 is the light breakout box fixed pedestal of the utility model tool attenuation function and the three-dimensional combination figure of collimation sleeve and fixed muffle support.
Figure 11 is the sectional view of Figure 10 along the C-C direction.
Figure 12 is the three-dimensional combination figure of the light breakout box of the utility model tool attenuation function.
Figure 13 is the sectional view of Figure 12 along the D-D direction.
[embodiment]
As shown in Figure 5, the light breakout box 100 of the utility model tool attenuation function comprises fixed pedestal 10, collimation sleeve 20, fixed muffle support 30, movable sleeve tube stent 40, movable counterpart 50, regulating device 60 and stop collar 70 and snap ring 80, and the light breakout box 100 of the utility model tool attenuation function comprises four screws 91,92,93,94 in addition.
Wherein, this fixed pedestal 10 comprises a square body 11 and a secure fit end 12 again, and four screws 13,13 ', 14,14 ' are set on this square body 11.This fixed pedestal 10 can be fixed on the panel component (figure does not show) by screw 93,94, and these secure fit end 12 front openings are in order to cooperate a FC type optical fiber connector plug (figure does not show).
This movable counterpart 50 is fixed as one by pin 95 with movable sleeve tube stent 40, and collimation sleeve 20 is contained by fixed muffle support 30 and movable sleeve tube stent 40 holds and be installed on this light breakout box 100 inside.Regulating device 60 cooperates with movable sleeve tube stent 40 threads, and can rotate relatively, move forward and backward vertically in order to another FC type optical fiber connector plug (figure does not show) that drives this movable sleeve tube stent 40, movable counterpart 50 and be fitted thereon, make two optical fiber connector plugs in collimation sleeve 20, produce relative clearance, thereby form decay the optical signal transmission energy.
Assembly relation for light breakout box 100 each element of sets forth in detail the utility model tool attenuation function please cooperate with reference to Fig. 6 to Fig. 13.Wherein, Fig. 6 and Fig. 7 are the constitutional diagrams of movable sleeve tube stent 40 and movable counterpart 50 of the light breakout box 100 of the utility model tool attenuation function, wherein, and movable counterpart 50 tool internal screw threads 53, movable sleeve tube stent 40 tool external screw teeths 42.After this movable counterpart 50 passed through threaded engagement with movable sleeve tube stent 40, pin 95 was inserted in the perforate 43 of movable sleeve tube stent 40 by the through hole 52 of movable counterpart 50, and should be one with 40 lockings of movable sleeve tube stent by movable counterpart 50.
Fig. 8 and Fig. 9 are light breakout box 100 regulating devices 60 of the utility model tool attenuation function and the constitutional diagram of movable sleeve tube stent 40, movable counterpart 50 and stop collar 70, snap ring 80.Wherein, the external screw teeth 42 of this movable sleeve tube stent 40 cooperates with the internal screw thread 63 of regulating device 60, and the flange 51 of movable counterpart 50 can lean with the inward flange 62 of regulating device 60.Stop collar 70 is placed on this movable sleeve tube stent 40, and the projection 71 of this stop collar 70 is stuck in the fluting 41 of movable sleeve tube stent 40.Snap ring 80 is a C shape ring, and its tool elasticity also comprises two projectioies 81.In two projectioies, the 81 overlapping draw-in grooves 44 that are stuck in movable sleeve tube stent 40 ends of this snap ring 80, can realize closely cooperating of snap ring 80 and movable sleeve tube stent 40 ends, and then keep movable sleeve tube stent 40 in adjustment process, to move terminal point, and be unlikely to break away from regulating device 60.
Figure 10 and Figure 11 are light breakout box 100 fixed pedestals 10 of the utility model tool attenuation function and the constitutional diagram of collimation sleeve 20 and fixed muffle support 30.Wherein, these fixed muffle support 30 ends are respectively equipped with external screw teeth 31 and slot 32, regulate fluting 32 with assembly tool, and drive fixed muffle support 30 rotations, so that the internal screw thread 17 of this fixed pedestal 10 cooperates with the external screw teeth 31 of these fixed muffle support 30 ends, and realize the fixing of fixed muffle support 30 and fixed pedestal 10.One end of collimation sleeve 20 is then inserted by fixed pedestal 10 1 sides, and is contained by fixed muffle support 30 and to hold.
Figure 12 and Figure 13 are the constitutional diagrams of the light breakout box 100 of the utility model tool attenuation function.Wherein, this movable sleeve tube stent 40 that is equipped with stop collar 70, snap ring 80 and regulating device 60 contains the other end of holding collimation sleeve 20, and matches with this fixed pedestal 10.Please cooperate with reference to Figure 10, these fixed pedestal 10 square body 11 set grooves 15 are accommodated stop collar 70, and two card keys 72 of this stop collar 70 also snap into two keyways 151 of groove 15 peripheries.61 of the outward flanges of this regulating device 60 are contained in the set groove 16 of this square body 11.
The adjusting of 100 pairs of luminous energies of light breakout box of the utility model tool attenuation function is to finish with the relative rotation of movable sleeve tube stent 40 by regulating device 60.Wherein, in adjustment process, regulating device 60 is rotated relatively in external screw teeth 42 parts of movable sleeve tube stent 40, be fixed in because of stop collar 70 in the groove 15 of fixed pedestal 10 square bodies 11, and the projection 71 of this stop collar 70 is stuck in the fluting 41 of movable sleeve tube stent 40, and two card keys 72 of this stop collar 70 snap into two keyways 151 of square body 11, this design can limit movable sleeve tube stent 40 and rotate with this regulating device 60, thereby this movable sleeve tube stent 40 and movable counterpart 50 are only moved forward and backward vertically.So, the FC type optical fiber connector plug (figure does not show) that is assemblied in the light breakout box two ends of the utility model tool attenuation function respectively can produce relative clearance, and forms the adjustable damping to luminous energy.
Please refer to shown in Figure 5ly again, two screws 91,92 that are arranged on the square body 11 are the locked instrument of the light breakout box 100 of tool attenuation function of the present utility model, and it is used for fixing this regulating device 60 in the square body 11 of fixed pedestal 10.Wherein, the outward flange 61 of the flange of screw 91 ends (indicate) and this regulating device 60 against, to keep this regulating device 60 in groove 16 inward turnings of fixed pedestal 10 square bodies 11 then outwards do not come off; 92 on screw is when this regulating device 60 rotates to required pad value, be locked in the screw 13 ' of square body 11, and the flange by its end (indicating) compresses the outward flange 61 of this regulating device 60, thereby this regulating device 60 lock fully, stablizes to keep pad value.
The above person is the embodiment that the light breakout box 100 of the utility model tool attenuation function cooperates with two FC type optical fiber connector plugs, but, governor motion of the present utility model also can be implemented in conjunction with the joints of optical fibre of other type, as: FC to ST, FC to SC, SC to SC, ST to ST and SC to ST etc.It in implementation process, only needs be designed to and can get final product with the structure that SC or ST type optical fiber connector plug cooperate secure fit end 12 of the present utility model and/or movable counterpart 50 separately.
Claims (8)
1. the light breakout box of a tool attenuation function, it is in order to regulate the end play between two butt joint optical fiber connector plugs, and realization is to the decay of luminous energy, it is characterized in that: it comprises one in order to cooperate and to have the fixed pedestal of draw-in groove with an optical fiber connector plug, one movable sleeve tube stent, surely straight sleeve, be contained in this fixed pedestal and this movable sleeve tube stent, one cooperates with the draw-in groove and the movable sleeve tube stent of this fixed pedestal, and prevent the stop collar of this movable sleeve tube stent rotation, and one in order to regulate the regulating device that this movable sleeve tube stent and movable counterpart move vertically.
2. the light breakout box of tool attenuation function according to claim 1 is characterized in that: it further comprises a movable counterpart in order to cooperate with another optical fiber connector plug, is to match together with this movable sleeve tube stent.
3. the light breakout box of tool attenuation function according to claim 1 is characterized in that: wherein this fixed pedestal further comprises a square body and a secure fit end.
4. the light breakout box of tool attenuation function according to claim 1 is characterized in that: wherein this movable sleeve tube stent further comprises an external screw teeth and axially grooved.
5. the light breakout box of tool attenuation function according to claim 4, it is characterized in that: wherein this stop collar further comprises several projections, this several projections is located at the inner and outer portions of this stop motion mechanism respectively, and cooperates with the draw-in groove of this fixed pedestal and the fluting of this movable sleeve tube stent respectively.
6. the light breakout box of tool attenuation function according to claim 4 is characterized in that: wherein this regulating device further comprises an inward flange, and this inward flange is provided with internal screw thread, and this internal screw thread cooperates with the external screw teeth of this movable sleeve tube stent.
7. the light breakout box of tool attenuation function according to claim 1 is characterized in that: it further comprises a locking device.
8. the light breakout box of tool attenuation function according to claim 7 is characterized in that: this locking device is two screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258267 CN2522903Y (en) | 2001-11-23 | 2001-11-23 | Photo adaptor with attenuation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258267 CN2522903Y (en) | 2001-11-23 | 2001-11-23 | Photo adaptor with attenuation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522903Y true CN2522903Y (en) | 2002-11-27 |
Family
ID=33666873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01258267 Expired - Fee Related CN2522903Y (en) | 2001-11-23 | 2001-11-23 | Photo adaptor with attenuation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522903Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006376B (en) * | 2004-08-24 | 2011-01-26 | 康宁光缆系统有限责任公司 | Fiber optic receptacle and plug assemblies with alignment and keying features |
| CN104076452A (en) * | 2013-03-29 | 2014-10-01 | 曹晨 | Optical fiber controller |
| CN116381861A (en) * | 2023-04-04 | 2023-07-04 | 星晧网络科技(佛冈)有限公司 | Optical fiber attenuator with continuously adjustable light intensity |
| CN116520505A (en) * | 2023-07-04 | 2023-08-01 | 浙江浙能能源服务有限公司 | Optical fiber connector for virtual power plant communication terminal construction |
-
2001
- 2001-11-23 CN CN 01258267 patent/CN2522903Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006376B (en) * | 2004-08-24 | 2011-01-26 | 康宁光缆系统有限责任公司 | Fiber optic receptacle and plug assemblies with alignment and keying features |
| CN104076452A (en) * | 2013-03-29 | 2014-10-01 | 曹晨 | Optical fiber controller |
| CN116381861A (en) * | 2023-04-04 | 2023-07-04 | 星晧网络科技(佛冈)有限公司 | Optical fiber attenuator with continuously adjustable light intensity |
| CN116381861B (en) * | 2023-04-04 | 2024-04-30 | 江西山水光电科技股份有限公司 | Optical fiber attenuator with continuously adjustable light intensity |
| CN116520505A (en) * | 2023-07-04 | 2023-08-01 | 浙江浙能能源服务有限公司 | Optical fiber connector for virtual power plant communication terminal construction |
| CN116520505B (en) * | 2023-07-04 | 2023-09-12 | 浙江浙能能源服务有限公司 | Optical fiber connector for virtual power plant communication terminal construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |