CN104122627A - Optical communication module - Google Patents
Optical communication module Download PDFInfo
- Publication number
- CN104122627A CN104122627A CN201310142149.9A CN201310142149A CN104122627A CN 104122627 A CN104122627 A CN 104122627A CN 201310142149 A CN201310142149 A CN 201310142149A CN 104122627 A CN104122627 A CN 104122627A
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- CN
- China
- Prior art keywords
- lens
- communication module
- circuit board
- optical communication
- support unit
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- Optical Couplings Of Light Guides (AREA)
Abstract
Disclosed is an optical communication module which includes electronic elements, a circuit board, a coupling lens and optical fibers. The electronic elements are located on the circuit board. The coupling lens is used to enable light signals to be coupled between the electronic elements and the optical fibers. The optical communication module also includes a support unit which is fixed on the circuit board. The support unit is provided with a step hole which includes a groove and a through hole. A position at which the groove is combined with the through hole is provided with first positioning parts. The coupling lens is provided with second positioning parts. The first positioning parts cooperate with the second positioning parts to enable the coupling lens to be positioned on the support unit. The electronic elements are located at an area of the circuit board, corresponding to the through hole.
Description
Technical field
The present invention is about a kind of optical communication module.
Background technology
Traditional optical communication module (comprising light transmitting terminal, optically-coupled lens and optical receiving end) all adopts passive type encapsulation on processing procedure, because passive type encapsulation cannot directly see through the situation of microscopic examination optically-coupled lens and light transmitting terminal or optical receiving end contraposition, make a relative position between light transmitting terminal, optically-coupled lens and the optical receiving end after invocation point adhesive curing have deviation, this contraposition deviation can make the coupling efficiency of optical communication module reduce.
Summary of the invention
In view of this, be necessary the optical communication module that provides a kind of light signal coupling efficiency high.
A kind of optical communication module, comprise electronic component, circuit board, coupled lens and optical fiber, described electronic component is positioned on described circuit board, described coupled lens is used for making light signal to be coupled between described optoelectronic component and described optical fiber, described optical communication module also comprises support unit, described support unit is fixed on described circuit board, described support unit has stepped hole, described stepped hole comprises groove and through hole, the junction of described groove and through hole has the first keeper, described coupled lens has the second keeper, described the first keeper and the second keeper match described coupled lens are positioned on described support unit, described electronic component is positioned at the region of the corresponding described through hole of described circuit board.
Compared to prior art, the coupled lens of the present embodiment has the second keeper, support unit has the first keeper, the first keeper and the second keeper match coupled lens are accurately being positioned on support unit, and then making photovoltaic element, support unit and coupled lens without bit errors, the transmission of light signal can reach the coupling efficiency of ideal.
Accompanying drawing explanation
Fig. 1 is the combination schematic diagram of embodiment of the present invention optical communication module.
Fig. 2 is the decomposing schematic representation of embodiment of the present invention optical communication module.
Fig. 3 is the decomposing schematic representation of another angle of embodiment of the present invention optical communication module.
Fig. 4 is the schematic cross-section of IV-IV in Fig. 1.
Main element symbol description
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the optical communication module 100 that the embodiment of the present invention provides comprises circuit board 10, light-emitting component 11, photoelectric detector 12, support unit 20, coupled lens 30 and optical fiber 40.Wherein, light-emitting component 11 and photoelectric detector 12 are electrically arranged on circuit board 10, support unit 20 be fixed on circuit board 10, be used for supporting and fixed coupling lens 30 so that coupled lens 30 with light-emitting component 11, photoelectric detector 12 and optical fiber 40 contrapositions to realize the transmission of light signal.
The light signal that the number of light-emitting component 11 and photoelectric detector 12 is transmitted according to optical communication module 100 is determined, for example, can be two, three, four etc., and in the present embodiment, the number of light-emitting component 11 and photoelectric detector 12 is two.In addition, light-emitting component 11 and photoelectric detector 12 can be referred to as electronic component.
Certainly, optical communication module 100 also can only include light-emitting component 11, to have merely the function of light-emitting device; Or, only include photoelectric detector 12, to there is merely the function of optical pickup apparatus.
Circuit board 10 can be hard circuit board or flexible PCB, and hard circuit board can be ceramic circuit board.Light-emitting component 11 can be light emitting diode (LED) or laser diode (LD), and preferably, light-emitting component 11 is face type light-emitting component.Photoelectric detector 12 is photodiode (PD).
Support unit 20 structure that is square, geometric center has a stepped hole 21, stepped hole 21 comprises coaxial groove 211 and through hole 212, the size of through hole 212 is less than the size of groove 211, on the joint portion of groove 211 and through hole 212, have two the first keepers 210 and an annular Jiao road 213, glue road 213 is used for holding glue.
Coupled lens 30 is made for light-transmitting materials, there is first surface 31, second surface 32 and the 3rd surface 33, wherein, first surface 31 intersects vertically with second surface 32, and first surface 31 and second surface 32 are all and between the 3rd surface 33, have the angle of 45 degree, and the cross section of coupled lens 30 is the right-angle triangle of clipping acute angle.The size of the size of first surface 31 and groove 211 is suitable, so that first surface 31 can be contained in groove 211 completely.
On first surface 31, there are the second keeper 310, first lens 311 and the second lens 312, parallel and the vertical first surface 31 of the optical axis of first lens 311 and the second lens 312, the second keeper 310 matches coupled lens 30 is positioned on support unit 20 with the first keeper 210 of support unit 20, first lens 311 is identical and corresponding one by one with number, the arrangement mode of light-emitting component 11, and the second lens 312 are identical and corresponding one by one with number, the arrangement mode of photoelectric detector 12.When coupled lens 30 is positioned on support unit 20, first lens 311, the second lens 312 are positioned at the region of the corresponding through hole 212 of circuit board 10.
On second surface 32, there is the 3rd lens 321 and the 4th optical axis of lens 322, the three lens 321 and the optical axis of the 4th lens 322 is parallel and vertical second surface 32.The number of the 3rd lens 321 is identical and corresponding one by one with the number of first lens 311, and the optical axis of the 3rd corresponding lens 321 and the optical axis of first lens 311 are vertically intersected on the 3rd surface 33; The number of the 4th lens 322 is identical and corresponding one by one with the number of the second lens 312, and the optical axis of the 4th corresponding lens 322 and the optical axis of the second lens 312 are vertically intersected on the 3rd surface 33.
In the present embodiment, the second keeper 310 is cylindrical projection, and the first keeper 210 is circular hole.In other embodiments, the second keeper 310 can be taper shape, truncated cone-shaped, cuboid etc., the corresponding change of shape of corresponding second keeper 310 of shape of the first keeper 210.
The number of optical fiber 40 equals the number sum of the 3rd lens 321 and the 4th lens 322, to be used for and the 3rd lens 321 and the 4th lens 322 optically-coupled.
During assembling optical communication module 100, first light-emitting component 11 and photoelectric detector 12 are arranged on to the appropriate location of circuit board 10, then support unit 20 be placed on circuit board 10 and make light-emitting component 11 and photoelectric detector 12 is arranged in through hole 212, adjust the position of support unit 20 relative circuit boards 10 until light-emitting component 11 and photoelectric detector 12 are arranged in the appropriate location of through hole 212, then can be between support unit 20 and circuit board 10 resisting medium such as glue coating so that support unit 20 be fixed on circuit board 10, then in support unit 20Jiao road 213, click and enter glue, in glue Jiao road 213, flow to be covered with whole glue road 213, again the second keeper 310 of coupled lens 30 is aimed to the first keeper 210 of support unit 20, to circuit board 10 directions, press coupled lens 30 so that the second keeper 310 slips in the first keeper 210, after glue curing, coupled lens 30 is firmly fixed on support unit 20.
The principle of work of optical communication module 100 is as follows: the light that light-emitting component 11 sends incides on first lens 311 through through hole 212, from first lens 311 outgoing, project on the 3rd surface 33, light is reflected and incides on the 3rd lens 321 on second surface 32 by the 3rd surface 33, from the 3rd lens 321 outgoing, by optical fiber 40, is received; Otherwise the light of optical fiber 40 transmission enters into coupled lens 30 through the 4th lens 322, by the 3rd surface 33 reflections by the second lens 312 outgoing, after the photoelectric detector 12 that is arranged on circuit board 10 receive.
On coupled lens 30, there is the second keeper 310, first keeper 210 on support unit 20 with corresponding the second keeper 310, the second keeper 310 and the first keeper 210 cooperatively interact coupled lens 30 are accurately being positioned on support unit 20, and then making light-emitting component 11, photoelectric detector 12, support unit 20 and coupled lens 30 without bit errors, the transmission of light signal can reach the coupling efficiency of ideal.
Be understandable that, those skilled in the art also can do other variation etc. and be used in design of the present invention in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.The variation that these are done according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (9)
1. an optical communication module, comprise electronic component, circuit board, coupled lens and optical fiber, described electronic component is positioned on described circuit board, described coupled lens is used for making light signal to be coupled between described electronic component and described optical fiber, it is characterized in that, described optical communication module also comprises support unit, described support unit is fixed on described circuit board, described support unit has stepped hole, described stepped hole comprises groove and through hole, the junction of described groove and through hole has the first keeper, described coupled lens has the second keeper, described the first keeper and the second keeper match described coupled lens are positioned on described support unit, described electronic component is positioned at the region of the corresponding described through hole of described circuit board.
2. optical communication module as claimed in claim 1, is characterized in that, described junction further has Jiao Dao, and described Jiao Dao is used for holding resisting medium so that described coupled lens is fixed on described support unit around described through hole.
3. optical communication module as claimed in claim 1, it is characterized in that, described coupled lens has first surface, second surface and the 3rd surface, the vertical described second surface of described first surface, and described first surface and second surface all have the angle of 45 degree with described the 3rd surface.
4. optical communication module as claimed in claim 3, is characterized in that, described the 3rd surface is used for reflecting and enters the light in described coupled lens.
5. optical communication module as claimed in claim 3, it is characterized in that, on described first surface, there are some first lens and some the second lens, the optical axis of parallel described second lens of optical axis of described first lens, on described second surface, there are some the 3rd lens and some the 4th lens, the optical axis of parallel described the 4th lens of optical axis of described the 3rd lens, described first lens and described the 3rd lens one by one corresponding and optical axis are vertically intersected on described the 3rd surface, described the second lens and described the 4th lens one by one corresponding and optical axis are vertically intersected on described the 3rd surface.
6. optical communication module as claimed in claim 1, is characterized in that, described electronic component comprises light-emitting component and photoelectric detector.
7. optical communication module as claimed in claim 6, is characterized in that, described light-emitting component is light emitting diode or laser diode, and described photoelectric detector is photodiode.
8. optical communication module as claimed in claim 1, is characterized in that, described circuit board is hard circuit board or flexible PCB.
9. optical communication module as claimed in claim 1, is characterized in that, described circuit board is ceramic circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142149.9A CN104122627A (en) | 2013-04-23 | 2013-04-23 | Optical communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142149.9A CN104122627A (en) | 2013-04-23 | 2013-04-23 | Optical communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104122627A true CN104122627A (en) | 2014-10-29 |
Family
ID=51768105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310142149.9A Pending CN104122627A (en) | 2013-04-23 | 2013-04-23 | Optical communication module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104122627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108513425A (en) * | 2018-03-29 | 2018-09-07 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
| CN111338088A (en) * | 2018-12-18 | 2020-06-26 | 夏普株式会社 | Light source module and light source device with same |
-
2013
- 2013-04-23 CN CN201310142149.9A patent/CN104122627A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108513425A (en) * | 2018-03-29 | 2018-09-07 | 青岛海信宽带多媒体技术有限公司 | A kind of optical module |
| CN108513425B (en) * | 2018-03-29 | 2020-11-24 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN111338088A (en) * | 2018-12-18 | 2020-06-26 | 夏普株式会社 | Light source module and light source device with same |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141029 |