CN103323917A - Photoelectric transducer - Google Patents
Photoelectric transducer Download PDFInfo
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- CN103323917A CN103323917A CN2012100791348A CN201210079134A CN103323917A CN 103323917 A CN103323917 A CN 103323917A CN 2012100791348 A CN2012100791348 A CN 2012100791348A CN 201210079134 A CN201210079134 A CN 201210079134A CN 103323917 A CN103323917 A CN 103323917A
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- lens
- side wall
- photoelectric commutator
- main body
- lenses
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Abstract
A photoelectric transducer comprises a support frame, an optic transmission body connected with the support frame, a plurality of first lenses and a plurality of second lenses. The optical transmission body comprises a first surface connected with the support frame and a second surface opposite to the first surface, wherein the first lenses are arranged on the first surface in a convex mode, an accommodating hole is formed in the end, connected with the first surface, of the optical transmission body, the accommodating hole comprises a bottom wall, the second lenses are arranged on the bottom wall in a convex mode, a reflection groove is formed in the second surface and corresponds to the first lenses, the reflection groove comprises a first side wall, and a reflection film is plated on the first side wall. Optical signals pass through the fires lenses, are reflected by the reflection film and then are transmitted to the second lenses. The optical transmission efficiency of the photoelectric transducer is high.
Description
Technical field
The present invention relates to the opto-electronic conversion field, relate in particular to a kind of photoelectric commutator.
Background technology
Photoelectric commutator its generally comprise laser diode (Laser Diode), the first smooth transport part, with the second smooth transport part and the photodiode (Photo Diode) of the first smooth transport part coupling.After laser diode was launched light signal, this light signal entered the first smooth transport part, and by the second smooth transport part transmission, finally entered photodiode, and light signal becomes electric signal by photodiode converts, thereby reaches the purpose of opto-electronic conversion.
The first smooth transport part generally comprises the first lens that is arranged at the bottom surface and is arranged at the second lens of the side of intersecting with the bottom surface, inside, the first smooth transport part has the reflecting surface of one 45 degree, when light signal enters the first smooth transport part through the first lens collimation, penetrate the first smooth transport part through this reflecting surface reflection and through the second collimated again.The first smooth transport part and the second smooth transport part generally are of coupled connections by the second lens and the optical fiber that is installed on the second smooth transport part.
According to total reflection principle, when the incident angle of light signal during greater than critical angle, light is all reflections on reflecting surface, light signal with miter angle incident, can make the turnover of light signal generating 90 degree with the emergence angle outgoing of 45 degree, the application of this principle in the ideal situation, except interface loss, light can all be delivered to the second lens.But in fact have many factors can cause light in the energy loss in when turnover, except angular deflection, the roughness of the reflectings surface of 45 degree often the Energy Transfer rate affect key element.Especially silicon etching or die plastic injection spare, 45 degree reflectings surface have certain roughness and complete minute surface, so tend to cause light energy losses.
Summary of the invention
In view of above-mentioned condition, be necessary to provide a kind of photoelectric commutator with high light effectiveness.
A kind of photoelectric commutator, the light that comprise bracing frame, links to each other with this bracing frame transmission main body, a plurality of first lens and a plurality of the second lens; This light transmission main body comprises that the first surface that connects with this bracing frame reaches the second surface relative with this first surface, these a plurality of first lens are convexly set on this first surface, the end that this light transmission main body is connected with this first surface offers accommodation hole, this accommodation hole comprises a diapire, these a plurality of second lens are convexly set on this diapire, this second surface offers reflection groove with this a plurality of first lens corresponding section, this reflection groove comprises the first side wall, be coated with reflectance coating on this first side wall, these a plurality of first lens of optical signals transfer to this a plurality of the second lens after this transmitting film reflection.
With respect to prior art, photoelectric commutator of the present invention is coated with reflectance coating by the first side wall at reflection groove, thereby has promoted the transfer efficiency of light signal.
Description of drawings
Fig. 1 is the schematic diagram of the photoelectric commutator of embodiment of the present invention.
Fig. 2 is the cut-open view of the photoelectric commutator of embodiment of the present invention.
Fig. 3 is that photoelectric commutator shown in Figure 2 is along the cut-open view of III-III direction.
The main element symbol description
| Photoelectric commutator | 100 |
| Bracing frame | 10 |
| Light transmission main body | 20 |
| First lens | 21 |
| The second lens | 22 |
| First surface | 201 |
| Second surface | 202 |
| Reflection groove | 23 |
| The first side wall | 231 |
| The second sidewall | 232 |
| Reflectance coating | 233 |
| Accommodation hole | 25 |
| Diapire | 251 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
The below also is described in further detail photoelectricity module provided by the invention by reference to the accompanying drawings with embodiment.
See also Fig. 1, Fig. 2 and Fig. 3, the photoelectric commutator 100 of embodiment of the present invention comprises bracing frame 10, light transmission main body 20, a plurality of first lens 21 and a plurality of the second lens 22.A plurality of first lens 21 and a plurality of the second lens 22 embed and are arranged on the light transmission main body 20.Bracing frame 10 rectangular frame shapes, and bracing frame 10 is arranged at the bottom of light transmission main body 20, is arranged at laser diode (not shown) top to support light transmission main body 20 receive light transmission main body 20 and the light signal of transmission laser diode outgoing.Photoelectric commutator 100 is used for transmission and transmitting photo-signal, it comprises that various functional modules are used for realizing various corresponding functions, as comprise be used to the laser diode that converts the electrical signal to light signal and for the photodiode that light signal is converted to electric signal, yet, in order to save space, do not give detailed description in the present embodiment.
Light transmission main body 20 comprises the first surface 201 that connects with bracing frame 10 and the second surface 202 relative with first surface 201.A plurality of first lens 21 intervals are convexly set on the first surface 201 and are located in the bracing frame 10, are used for light signal is collimated incident light transmission main body 20.
Offer reflection groove 23 on the second surface 202, reflection groove 23 is corresponding with a plurality of first lens 21, makes the light signal by a plurality of first lens 21 transmission on reflection groove 23 total reflection occur.Reflection groove 23 is positioned at second surface 202 middle parts, and the xsect of reflection groove 23 is triangle.
Reflection groove 23 comprises the first side wall 231 and the second sidewall 232 that links to each other with the first side wall 231.In the present embodiment, the second sidewall 232 extends along the direction of vertical first surface 201, and the first side wall 231 is 45 ° direction extension along the angle with the second sidewall 232.
Light transmission main body 20 offers accommodation hole 25 in the end face towards the second sidewall 232.Accommodation hole 25 is square blind hole, and it comprises diapire 251.In the present embodiment, diapire 251 is parallel with the second sidewall 232.A plurality of the second lens 22 intervals are convexly set on the diapire 251, are used for light signal is collimated emergent light transmission main body 20.
In the present embodiment, first lens 21 and the second lens 22 are single protruding sphere collector lens, and the number of first lens 21 and the second lens 22 is corresponding, and present embodiment is 4.
When photoelectric commutator 100 uses, light signal transfers to light transmission main body 20 behind first lens 21 optically focused, until optical signal transmission is to the first side wall 231, light signal in the first side wall 231 places through total reflection, and transfer to the second lens 22, light signal transfers to other functional module of photoelectric commutator 100 behind the second lens 22 collimations, to realize follow-up opto-electronic conversion.
But because the surface of the first side wall 231 is ejection formation, surfaceness is higher, therefore has part optical signals loss via the uneven surface scattering.In the present embodiment, loss when transferring to the first side wall 231 in order to reduce light by first lens 21, take to plate one deck reflectance coating 233 at the first side wall 231 of photoelectric commutator 100, this reflectance coating 233 is comprised of the material of high reflectance, and the material of this high reflectance can be gold, silver, copper or aluminium.The material of this high reflectance is sputtered to the surface of the first side wall 231 to fill up the finedraw on the first side wall 231 surfaces.Implement there is no the problem of uniformity coefficient with the way of plated film, only need surface with the first side wall 231 be paved with and get final product, be not difficult in engineering, but can reduce the loss of light signal in the first side wall 231 scatterings, the light transmissioning efficiency of lifting photoelectric commutator 100.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included in the present invention's scope required for protection.
Claims (4)
1. photoelectric commutator, the light that comprise bracing frame, links to each other with this bracing frame transmission main body, a plurality of first lens and a plurality of the second lens;
This light transmission main body comprises that the first surface that connects with this bracing frame reaches the second surface relative with this first surface, these a plurality of first lens are convexly set on this first surface, the end that this light transmission main body is connected with this first surface offers accommodation hole, this accommodation hole comprises a diapire, these a plurality of second lens are convexly set on this diapire, it is characterized in that: this second surface offers reflection groove with this a plurality of first lens corresponding section, this reflection groove comprises the first side wall, be coated with reflectance coating on this first side wall, these a plurality of first lens of optical signals transfer to this a plurality of the second lens after this transmitting film reflection.
2. photoelectric commutator as claimed in claim 1, it is characterized in that: this reflection groove also comprises the second sidewall that links to each other with the first side wall, this second sidewall extends along the direction vertical with this first surface, and this first side wall edge is that 45 ° of directions are extended with this second sidewall angle.
3. photoelectric commutator as claimed in claim 1 is characterized in that: the reflecting material of institute's sputter is a kind of in gold, silver, copper, the aluminium on this reflectance coating.
4. photoelectric commutator as claimed in claim 1 is characterized in that: this first lens and this second lens are single protruding sphere collector lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100791348A CN103323917A (en) | 2012-03-23 | 2012-03-23 | Photoelectric transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100791348A CN103323917A (en) | 2012-03-23 | 2012-03-23 | Photoelectric transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103323917A true CN103323917A (en) | 2013-09-25 |
Family
ID=49192761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100791348A Pending CN103323917A (en) | 2012-03-23 | 2012-03-23 | Photoelectric transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103323917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109964159A (en) * | 2016-11-15 | 2019-07-02 | 恩普乐斯股份有限公司 | Optical component, the injection moulding mold of optical component and the ejection forming method of optical component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080035484A (en) * | 2006-10-19 | 2008-04-23 | 스미토모 덴키 고교 가부시키가이샤 | Photoelectric coupling assembly and manufacturing method thereof |
| CN101266325A (en) * | 2007-03-15 | 2008-09-17 | 日立电线株式会社 | Optical system connection structure, optical component, and optical communication module |
| US20110097037A1 (en) * | 2008-11-11 | 2011-04-28 | Ultra Communications, Inc. | Fiber optic bi-directional coupling lens |
| WO2011077723A1 (en) * | 2009-12-22 | 2011-06-30 | 株式会社エンプラス | Lens array and optical module provided therewith |
| CN103176248A (en) * | 2011-12-26 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Photoelectric converter |
-
2012
- 2012-03-23 CN CN2012100791348A patent/CN103323917A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080035484A (en) * | 2006-10-19 | 2008-04-23 | 스미토모 덴키 고교 가부시키가이샤 | Photoelectric coupling assembly and manufacturing method thereof |
| CN101266325A (en) * | 2007-03-15 | 2008-09-17 | 日立电线株式会社 | Optical system connection structure, optical component, and optical communication module |
| US20110097037A1 (en) * | 2008-11-11 | 2011-04-28 | Ultra Communications, Inc. | Fiber optic bi-directional coupling lens |
| WO2011077723A1 (en) * | 2009-12-22 | 2011-06-30 | 株式会社エンプラス | Lens array and optical module provided therewith |
| CN103176248A (en) * | 2011-12-26 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Photoelectric converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109964159A (en) * | 2016-11-15 | 2019-07-02 | 恩普乐斯股份有限公司 | Optical component, the injection moulding mold of optical component and the ejection forming method of optical component |
| CN109964159B (en) * | 2016-11-15 | 2021-04-20 | 恩普乐斯股份有限公司 | Optical component, injection molding die for optical component, and injection molding method for optical component |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |