CN104423001A - Lens unit and optical communication module group - Google Patents
Lens unit and optical communication module group Download PDFInfo
- Publication number
- CN104423001A CN104423001A CN201310376863.4A CN201310376863A CN104423001A CN 104423001 A CN104423001 A CN 104423001A CN 201310376863 A CN201310376863 A CN 201310376863A CN 104423001 A CN104423001 A CN 104423001A
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- CN
- China
- Prior art keywords
- reflecting surface
- communication module
- lens unit
- degree
- optical communication
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
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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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to a lens unit comprising a first portion and a second portion. The first portion and the second portion have a common bottom surface and a common first side surface, wherein the bottom surface is perpendicular to the first side surface. The first portion has a first reflection surface that is intersected with the bottom surface and the first side surface; and the included angle is 45 degrees. The second portion has a second side surface parallel to the first side surface; a second reflection surface, a third reflection surface, and a fourth reflection surface are arranged between the first side surface and the second side surface, wherein the second reflection surface and the third reflection surface are perpendicular to and intersected with each other and the fourth reflection surface is parallel to the third reflection surface; the second reflection surface and the first side surface are intersected with each other with the included angel of 45 degrees; and the third reflection surface and the second side surface are intersected with each other with the included angle of 45 degrees. The first reflection surface, the second reflection surface, the third reflection surface, and the fourth reflection surface are used for realizing 90-degree conversion of an optical signal. In addition, the invention also relates to an optical communication module group having the lens unit.
Description
Technical field
The present invention is about a kind of lens unit and optical communication module.
Background technology
The optical communication module of tradition comprises optical fiber, photovoltaic element (comprising luminescence unit and light receiving unit) and lens unit, and lens unit is used for light signal is coupled between optical fiber with photovoltaic element.
The light that luminescence unit sends through the path of certain length, enters optical fiber in lens unit; And the light of Optical Fiber Transmission is same through the path of equal length in lens unit, received by light receiving unit, therefore lens unit generally can only a kind of path of length.
Summary of the invention
In view of this, be necessary to provide a kind of lens unit and the optical communication module with different length path.
A kind of lens unit, comprise first part and the second part, described first part and the second part have common bottom surface and the first side, described bottom surface and the first lateral vertical, described first part has the first reflecting surface, described first reflecting surface and bottom surface, between first side intersect and angle is 45 degree, described second part has second side parallel with described first side, there is between described first side and the second side the second reflecting surface and the 3rd reflecting surface and four reflecting surface parallel with described 3rd reflecting surface that intersect vertically, described second reflecting surface is crossing with described first side and angle is 45 degree, described 3rd reflecting surface is crossing with described second side and angle is 45 degree, described first reflecting surface, second reflecting surface, 3rd reflecting surface and the 4th reflecting surface are used for light signal conversion 90 degree.
A kind of optical communication module, comprise lens unit, optical fiber and photovoltaic element, described lens unit is used for realizing light signal described optical fiber and being coupled between photovoltaic element, described lens unit comprises first part and the second part, described first part and the second part have common bottom surface and the first side, described bottom surface and the first lateral vertical, described first part has the first reflecting surface, described first reflecting surface and bottom surface, between first side intersect and angle is 45 degree, described second part has second side parallel with described first side, there is between described first side and the second side the second reflecting surface and the 3rd reflecting surface and four reflecting surface parallel with described 3rd reflecting surface that intersect vertically, described second reflecting surface is crossing with described first side and angle is 45 degree, described 3rd reflecting surface is crossing with described second side and angle is 45 degree, described first reflecting surface, second reflecting surface, 3rd reflecting surface and the 4th reflecting surface are used for light signal conversion 90 degree.
Compared to prior art, embodiment of the present invention lens unit comprises first part and the second part, first part has the first reflecting surface to be reflected once by light, second part has the second reflecting surface, the 3rd reflecting surface and the 4th reflecting surface so that light is reflected three times, therefore, the light entering lens unit from same direction can be reflected different number of times to make light through different length path, then from the outgoing of same direction by first part and the second part.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment of the present invention optical communication module.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the exploded view of another angle of Fig. 1.
Fig. 4 is the side view of first direction in Fig. 2.
Fig. 5 is the side view of second direction contrary with first direction in Fig. 2.
Main element symbol description
| Optical communication module | 100 |
| Lens unit | 10 |
| First optical fiber | 20 |
| Second optical fiber | 30 |
| Circuit board | 40 |
| First photovoltaic element | 50 |
| Second photovoltaic element | 60 |
| First part | 11 |
| Second part | 12 |
| Bottom surface | 101 |
| First side | 102 |
| Second side | 103 |
| First reflecting surface | 110 |
| First lens | 111 |
| Second lens | 112 |
| Second reflecting surface | 120 |
| 3rd reflecting surface | 121 |
| 4th reflecting surface | 122 |
| 3rd lens | 123 |
| 4th lens | 124 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, Fig. 2 and Fig. 3, the optical communication module 100 of the embodiment of the present invention comprises lens unit 10, first optical fiber 20, second optical fiber 30, circuit board 40, first photovoltaic element 50 and the second photovoltaic element 60.
Wherein, circuit board 40 is hardboard or soft board, first photovoltaic element 50 and the second photovoltaic element 60 are electrically arranged on circuit board 40, first photovoltaic element 50 and the second photovoltaic element 60 can be luminescence unit (such as, light emitting diode or laser diode), also can be light receiving unit (such as, photoelectric detector); Lens unit 10 is used for realizing the optically-coupled between the first optical fiber 20 and the first photovoltaic element 50 and the optically-coupled between the second optical fiber 30 and the second photovoltaic element 60.
Lens unit 10 comprises first part 11 and the second part 12, and first part 11 is used for realizing being coupled between the first optical fiber 20 with the first photovoltaic element 50, and the second part 12 realizes being coupled between the second optical fiber 30 with the second photovoltaic element 60.
See also Fig. 4 and Fig. 5, first part 11 and the second part 12 have common bottom surface 101 and the first side, side 102, first 102 intersects vertically with bottom surface 101.First side 102 have the first lens 111 and the 3rd lens 123, first lens 111 and vertical first side 102 parallel with the optical axis of the 3rd lens 123, bottom surface 101 have the second lens 112 and the 4th lens 124, second lens 112 and vertical bottom face 101 parallel with the optical axis of the 4th lens 124, first lens 111 and the second lens 112 are positioned on first part 11, and the 3rd lens 123 and the 4th lens 124 are positioned in the second part 12.
First part 11 also comprises the first reflecting surface 110, first reflecting surface 110 between bottom surface 101 and the first side 102 and bottom surface 101 and the first side 102 is crossing and angle is 45 degree.
Second part 12 also comprises second side 103 parallel with the first side 102 and the second reflecting surface 120 between the first side 102 and the second side 103, 3rd reflecting surface 121 and the 4th reflecting surface 122, second reflecting surface 120 and the 3rd reflecting surface 121 intersect vertically, second reflecting surface 120 is crossing with the second side 103 and angle is 45 degree, 3rd reflecting surface 121 is crossing with the first side 102 and angle is 45 degree, parallel 3rd reflecting surface 121 of 4th reflecting surface 122 and for bottom surface 101 part form to lens unit 10 inner recess, angle between 4th reflecting surface 122 and bottom surface 101 is 45 degree.
When the first photovoltaic element 50 is light receiving unit, the light signal that first optical fiber 20 transmits enters in the first part 11 of lens unit 10 by the first lens 111 on the first side 102, and incide on the first reflecting surface 110, after reflection through the second lens 112 from first part 11 outgoing, rear receive by the first photovoltaic element 50.
When the second photovoltaic element 60 is light receiving unit, the light signal that second optical fiber 30 transmits enters in the second part 12 of lens unit 10 by the 3rd lens 123 on the first side 102, and incide on the 4th reflecting surface 122, light signal reflexes on the 3rd reflecting surface 121 by the 4th reflecting surface 122, light signal successively after the reflection of the 3rd reflecting surface 121, second reflecting surface 120 through the 4th lens 124 from second part 12 outgoing, finally receive by the second photovoltaic element 60.
From the light path of light signal in first part 11 and the second part 12, the light signal that first optical fiber 20 transmits is received by the first photovoltaic element 50 through primary event in first part 11, then received by the second photovoltaic element 60 through triple reflection in the second part 12, therefore, lens unit 10 make through the first optical fiber 20 and the second optical fiber 30 transmission light signal through the path of different length respectively by the first photovoltaic element 50 and the second photovoltaic element 60 receive.
When the first photovoltaic element 50 and the second photovoltaic element 60 are luminescence unit, the light that first photovoltaic element 50 sends enters in first part 11 through the second lens 112, and incide on the first reflecting surface 110, from the first lens 111 outgoing after reflection, to be coupled into the first optical fiber 20; And the light that the second photovoltaic element 60 sends enters in the second part 12 through the 4th lens, and successively through the reflection of the second reflecting surface 120, the 3rd reflecting surface 121 and the 4th reflecting surface 122, then through the 3rd lens 123 from the second part 12 outgoing be coupled into the second optical fiber 30.As can be seen here, the light that first photovoltaic element 50 sends enters the first optical fiber 20 through primary event, the light that second photovoltaic element 60 sends enters the second optical fiber 30 through triple reflection, therefore lens unit 10 makes the first photovoltaic element 50 and the second photovoltaic element 60 send equally and enters the first optical fiber 20 and the second optical fiber 30 respectively through different paths.
Be understandable that, those skilled in the art also can do other change etc. and be used in design of the present invention, as long as it does not depart from technique effect of the present invention in spirit of the present invention.These changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (8)
1. a lens unit, comprise first part and the second part, described first part and the second part have common bottom surface and the first side, described bottom surface and the first lateral vertical, described first part has the first reflecting surface, described first reflecting surface and bottom surface, first side is intersected and angle is 45 degree, described second part has second side parallel with described first side, there is between described first side and the second side the second reflecting surface and the 3rd reflecting surface and four reflecting surface parallel with described 3rd reflecting surface that intersect vertically, described second reflecting surface is crossing with described first side and angle is 45 degree, described 3rd reflecting surface is crossing with described second side and angle is 45 degree, described first reflecting surface, second reflecting surface, 3rd reflecting surface and the 4th reflecting surface are used for light signal conversion 90 degree.
2. lens unit as claimed in claim 1, is characterized in that all there are lens described bottom surface and the first side.
3. an optical communication module, comprise lens unit, optical fiber and photovoltaic element, described lens unit is used for realizing light signal described optical fiber and being coupled between photovoltaic element, its improvement is, described lens unit comprises first part and the second part, described first part and the second part have common bottom surface and the first side, described bottom surface and the first lateral vertical, described first part has the first reflecting surface, described first reflecting surface and bottom surface, first side is intersected and angle is 45 degree, described second part has second side parallel with described first side, there is between described first side and the second side the second reflecting surface and the 3rd reflecting surface and four reflecting surface parallel with described 3rd reflecting surface that intersect vertically, described second reflecting surface is crossing with described first side and angle is 45 degree, described 3rd reflecting surface is crossing with described second side and angle is 45 degree, described first reflecting surface, second reflecting surface, 3rd reflecting surface and the 4th reflecting surface are used for light signal conversion 90 degree.
4. optical communication module as claimed in claim 3, it is characterized in that, described optical communication module comprises circuit board further, and described photovoltaic element is electrically arranged on described circuit board.
5. optical communication module as claimed in claim 3, it is characterized in that, described circuit board is hardboard or soft board.
6. optical communication module as claimed in claim 3, it is characterized in that, described photovoltaic element is luminescence unit or photodetector unit.
7. optical communication module as claimed in claim 6, it is characterized in that, described luminescence unit is light emitting diode or laser diode, and described photodetector unit is photodiode.
8. optical communication module as claimed in claim 3, is characterized in that all there are lens described bottom surface and the first side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376863.4A CN104423001A (en) | 2013-08-27 | 2013-08-27 | Lens unit and optical communication module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376863.4A CN104423001A (en) | 2013-08-27 | 2013-08-27 | Lens unit and optical communication module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104423001A true CN104423001A (en) | 2015-03-18 |
Family
ID=52972530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310376863.4A Pending CN104423001A (en) | 2013-08-27 | 2013-08-27 | Lens unit and optical communication module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104423001A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2896309Y (en) * | 2006-03-28 | 2007-05-02 | 达方电子股份有限公司 | Light-guide module |
| CN101506708A (en) * | 2006-08-22 | 2009-08-12 | 日本电气株式会社 | Optical connector and optical coupling structure |
| CN101877454A (en) * | 2010-04-16 | 2010-11-03 | 北京工业大学 | Multi-pass laser amplification method and gain module thereof |
| CN102692680A (en) * | 2011-03-25 | 2012-09-26 | 富士通株式会社 | Optical waveguide device and optical hybrid circuit |
| CN103185932A (en) * | 2011-12-30 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber connector |
-
2013
- 2013-08-27 CN CN201310376863.4A patent/CN104423001A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2896309Y (en) * | 2006-03-28 | 2007-05-02 | 达方电子股份有限公司 | Light-guide module |
| CN101506708A (en) * | 2006-08-22 | 2009-08-12 | 日本电气株式会社 | Optical connector and optical coupling structure |
| CN101877454A (en) * | 2010-04-16 | 2010-11-03 | 北京工业大学 | Multi-pass laser amplification method and gain module thereof |
| CN102692680A (en) * | 2011-03-25 | 2012-09-26 | 富士通株式会社 | Optical waveguide device and optical hybrid circuit |
| CN103185932A (en) * | 2011-12-30 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber connector |
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Application publication date: 20150318 |
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