CN111025493B - A light transmission device - Google Patents
A light transmission device Download PDFInfo
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- CN111025493B CN111025493B CN201911311882.2A CN201911311882A CN111025493B CN 111025493 B CN111025493 B CN 111025493B CN 201911311882 A CN201911311882 A CN 201911311882A CN 111025493 B CN111025493 B CN 111025493B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 78
- 238000012858 packaging process Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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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
- G02B6/4274—Electrical aspects
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
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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
- G02B6/4246—Bidirectionally operating package structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
本发明公开了一种光传输装置，所述光传输装置包括印刷电路板及设置在印刷电路板上的光接收器、光发射器及电子电路，光发射器和光接收器均与电子电路相连接，所述光传输装置还包括覆盖在印刷电路板上的光路径转折单元，所述光路径转折单元包括盖体和设置在盖体上的L型光导体，所述L型光导体的一部分垂直于印刷电路板，另一部分平行于印刷电路板，垂直于印刷电路板的L型光导体的一端与光发射器相耦合。本发明提供的光传输装置克服了传统光传输装置为达成射出平行光而封装不易的缺点。
The invention discloses an optical transmission device, which includes a printed circuit board, an optical receiver, an optical transmitter and an electronic circuit arranged on the printed circuit board, and the optical transmitter and the optical receiver are both connected to the electronic circuit , the optical transmission device also includes a light path turning unit covered on the printed circuit board, the light path turning unit includes a cover and an L-shaped photoconductor arranged on the cover, a part of the L-shaped photoconductor is vertical The other part is parallel to the printed circuit board, and one end of the L-shaped photoconductor perpendicular to the printed circuit board is coupled with the light emitter. The optical transmission device provided by the present invention overcomes the disadvantage that the traditional optical transmission device is not easy to package in order to emit parallel light.
Description
技术领域technical field
本发明属于光通信技术领域，特别涉及一种光传输装置。The invention belongs to the technical field of optical communication, and in particular relates to an optical transmission device.
背景技术Background technique
随着互联网的快速发展，人们对网络资源的需求急速增长，对速度及流量的要求，使得光通信技术高速的发展。在光通信领域中，光模块为用来将光电转换的重要装置。光模块因其传输速率高、体积小，且具有可热插的特性，在光通信系统中广泛的应用。光模块的作用是将发送端设备的电信号转换成光信号，通过传输信号到达目的地，再将光信号转换回电信号，供接收端设备使用。With the rapid development of the Internet, people's demand for network resources has increased rapidly, and the requirements for speed and traffic have led to the rapid development of optical communication technology. In the field of optical communication, an optical module is an important device for converting light into light. Optical modules are widely used in optical communication systems due to their high transmission rate, small size, and hot-swappable features. The function of the optical module is to convert the electrical signal of the sending end device into an optical signal, transmit the signal to the destination, and then convert the optical signal back to an electrical signal for use by the receiving end device.
光模块通常包括光接收器、光发射器及印刷电路板。光接收器及光发射器分别设置于该印刷电路板上，在印刷电路板上设置有电子电路，该光接收器及该光发射器均与该印刷电路板上的电子电路相连接。如说明书附图中的图1所示，传统光传输装置是在电路板30’上设置一雷射发射器10’，为了整体设备的体积设置，需使雷射光平行该电路板30’方向射出，因此，将该雷射光发射器10’垂直设置于电路板30’上，但这样的设置不利于该电路板的封装制程，并且，雷射光发射器10’亦易容易在晃动后产生位移，进而影响光讯号传输的精确性。如公开号为CN208109866U的中国专利文献公开了一种光电传感器，包括：光发射器，光接收器，印刷电路板，处理电路，所述光发射器、所述光接收器以及所述处理电路分别连接到所述印刷电路板，所述光发射器被配置为发射光信号；所述光接收器被配置为接收所述光发射器发射的光信号，并基于接收到的光信号向所述处理电路输出电信号；所述处理电路被配置为对所述电信号进行处理，并输出感测信号。该专利中的光发射器也垂直设置于印刷电路板上。An optical module usually includes an optical receiver, an optical transmitter, and a printed circuit board. The light receiver and the light emitter are respectively arranged on the printed circuit board, and the electronic circuit is arranged on the printed circuit board, and both the light receiver and the light emitter are connected with the electronic circuit on the printed circuit board. As shown in Figure 1 in the accompanying drawings, the traditional optical transmission device is to install a laser emitter 10' on the circuit board 30'. In order to set the volume of the overall equipment, the laser light needs to be emitted parallel to the direction of the circuit board 30' Therefore, the laser light emitter 10' is vertically arranged on the circuit board 30', but such an arrangement is not conducive to the packaging process of the circuit board, and the laser light emitter 10' is also prone to displacement after shaking, Thus affecting the accuracy of optical signal transmission. For example, the Chinese patent document with the publication number CN208109866U discloses a photoelectric sensor, including: an optical transmitter, an optical receiver, a printed circuit board, and a processing circuit. The optical transmitter, the optical receiver, and the processing circuit are respectively Connected to the printed circuit board, the optical transmitter is configured to emit an optical signal; the optical receiver is configured to receive the optical signal emitted by the optical transmitter, and send the processing information to the processing based on the received optical signal The circuit outputs an electrical signal; the processing circuit is configured to process the electrical signal and output a sensing signal. The light emitters in this patent are also arranged vertically on the printed circuit board.
综上所述，目前亟需一种利于电路板的封装制程的光模块(光传输装置)。To sum up, there is an urgent need for an optical module (optical transmission device) that facilitates the packaging process of circuit boards.
发明内容Contents of the invention
本发明的目的在于提供一种光传输装置，克服了传统光传输装置为达成射出平行光而封装不易的缺点。The object of the present invention is to provide an optical transmission device, which overcomes the disadvantage of difficult packaging of conventional optical transmission devices to achieve parallel light emission.
本发明提供如下技术方案：The present invention provides following technical scheme:
一种光传输装置，所述光传输装置包括印刷电路板及设置在印刷电路板上的光接收器、光发射器及电子电路，光发射器和光接收器均与电子电路相连接，所述光发射器平行设置在印刷电路板上；所述光传输装置还包括覆盖在印刷电路板上的光路径转折单元，所述光路径转折单元包括盖体和设置在盖体上的L型光导体，所述L型光导体的一部分垂直于印刷电路板，另一部分平行于印刷电路板，垂直于印刷电路板的L型光导体的一端与光发射器相耦合。An optical transmission device, the optical transmission device includes a printed circuit board and an optical receiver, an optical transmitter and an electronic circuit arranged on the printed circuit board, the optical transmitter and the optical receiver are all connected to the electronic circuit, and the optical The emitter is arranged in parallel on the printed circuit board; the optical transmission device also includes an optical path turning unit covered on the printed circuit board, and the light path turning unit includes a cover and an L-shaped photoconductor arranged on the cover, A part of the L-shaped photoconductor is perpendicular to the printed circuit board, another part is parallel to the printed circuit board, and one end of the L-shaped photoconductor perpendicular to the printed circuit board is coupled with the light emitter.
所述印刷电路板上设置有多个光发射器，盖体上设置有相应数量的L型光导体，以实现光发射器和L型半导体的一一相耦合。A plurality of light emitters are arranged on the printed circuit board, and a corresponding number of L-shaped photoconductors are arranged on the cover to realize one-to-one coupling between the light emitters and the L-shaped semiconductors.
光发射器平行设置在印刷电路板上，产生垂直于印刷电路板的光信号，经L型光导体转向后产生平行于印刷电路板的光信号。因此，本发明通过设置光路径转折单元，即使光发射器平行设置在印刷电路板后，仍可以使光发射器产生的光线以平行基板的角度发射，从而减少了封装的困难。The light emitter is arranged on the printed circuit board in parallel, generates an optical signal perpendicular to the printed circuit board, and generates an optical signal parallel to the printed circuit board after being turned by the L-shaped photoconductor. Therefore, by setting the light path turning unit in the present invention, even if the light emitter is arranged in parallel behind the printed circuit board, the light generated by the light emitter can still be emitted at an angle parallel to the substrate, thereby reducing the difficulty of packaging.
优选的，所述盖体上设有L型凹槽，所述L型凹槽用于堑入L型光导体。Preferably, an L-shaped groove is provided on the cover body, and the L-shaped groove is used for inserting an L-shaped photoconductor.
优选的，所述光发射器为雷射光发射器。Preferably, the light emitter is a laser light emitter.
优选的，所述光发射器为雷射光二极管。Preferably, the light emitter is a laser photodiode.
优选的，所述L型半导体为光导纤维。Preferably, the L-shaped semiconductor is an optical fiber.
在本发明提供的光传输装置中，印刷电路板电信链接有一驱动光发射器激发光信号的指示信号来源，通过指示信号来源进而驱动该光发射单元并提供光信号所代表的讯息内容。In the optical transmission device provided by the present invention, the telecommunication link of the printed circuit board has an indication signal source that drives the light emitter to excite the light signal, and then drives the light emitting unit through the indication signal source to provide the information content represented by the light signal.
与现有技术相比，本发明提供的技术方案通过设置光路径转折单元，对光发射器产生的光信号的方向进行转向，可以克服现有技术中将“雷射发射器垂直设置于电路板上”而带来封装制程的缺点，并且可以增加光发射器的稳定性。Compared with the prior art, the technical solution provided by the present invention can reverse the direction of the optical signal generated by the optical transmitter by setting the optical path turning unit, which can overcome the problem of "the laser transmitter is vertically arranged on the circuit board" in the prior art. "On" brings the disadvantages of the packaging process, and can increase the stability of the light emitter.
附图说明Description of drawings
图1为传统光传输装置的示意图。FIG. 1 is a schematic diagram of a conventional optical transmission device.
图2为本发明中用于传输信息的光传输装置的结构示意图。FIG. 2 is a schematic structural diagram of an optical transmission device for transmitting information in the present invention.
图3为本发明中光传输装置中L型光导体与光发射器相耦合的结构示意图。Fig. 3 is a schematic diagram of the structure of the L-shaped photoconductor coupled with the light transmitter in the light transmission device of the present invention.
具体实施方式Detailed ways
以下藉由具体实施例说明本发明之实施方式，熟习此技艺之人士可由本说明书所揭示之内容轻易地了解本发明之其他优点与功效。此外，本发明亦可藉由其他不同具体实施例加以施行或应用，在不悖离本发明之精神下进行各种修饰与变更。The implementation of the present invention will be described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. In addition, the present invention can also be implemented or applied through other different specific embodiments, and various modifications and changes can be made without departing from the spirit of the present invention.
如图1所示，传统传统光传输装置是在电路板30’上设置一雷射发射器10’，产生平行于电路板的光信号。As shown in FIG. 1 , the conventional optical transmission device is to install a laser emitter 10' on a circuit board 30' to generate an optical signal parallel to the circuit board.
请参考图2和图3，本实施例提供的光传输装置1包括：多个光发射器10、一个光路路径转折单元20、印刷电路板30，印刷电路板30上设置有雨光发射器10电性连接的电子电路，光发射器10平行设置在印刷电路板30上。光路径转折单元10包括盖体和设置在盖体上的多个L型光导体202，L型光导体202的一部分垂直于印刷电路板，另一部分平行于印刷电路板，垂直于印刷电路板30的L型光导体202的一端与光发射器10相耦合。Please refer to Fig. 2 and Fig. 3, the
其中，光路径转折单元20的盖体盖在光发射器10和印刷电路板30之上，并且光路径转折单元20的盖体上设有多个用于堑入L型光导体202的L型凹槽201。具体制备可以为将成型的L型光导体堑入到L型凹槽201，或者将熔融光导材料倒入后成型，例如：玻璃、塑料、PC或PMMA材料。Wherein, the cover body of the light
其中，光发射器10为雷射光发射器，如雷射光二极管。在光纤通讯系统中所使用的雷射二极管为同调性的光，其发光效率高、可靠度佳，且可将波长优化。Wherein, the
其中，L型光导体202为光导纤维。Wherein, the L-shaped
本实施例提供的光传输装置，虽然光发射器10平行设置于印刷电路板30上，产生垂直于印刷电路板30的光信号传输到与光发射器10相耦合的L型光导体202，L型光导体202对光信号进行传输并进行转向，垂直于印刷电路板30的光信号经L型光导体202转向后产生平行于印刷电路板的光信号。因此，即使将光发射器10平行设置于印刷电路板30上，通过光路径单元20可以实现光发射器10产生的光信号平行于印刷电路板30发出，从而使后续印刷电路板30的封装制程更为简易In the optical transmission device provided by this embodiment, although the
上述实施例仅为了方便说明而举例而已，本发明所主张之权利范围自应以申请专利范围所述为准，而非仅限于上述实施例。The above-mentioned embodiments are only examples for convenience of description, and the scope of rights claimed by the present invention should be based on the scope of the patent application, rather than limited to the above-mentioned embodiments.
Claims (4)
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| JP2002090586A (en) * | 2000-09-13 | 2002-03-27 | Matsushita Electric Ind Co Ltd | Opto-electronic circuit module and method of manufacturing the same |
| JP2006284781A (en) * | 2005-03-31 | 2006-10-19 | Furukawa Electric Co Ltd:The | Circuit board |
| JP2007094193A (en) * | 2005-09-29 | 2007-04-12 | Rohm Co Ltd | Optical communication module |
| JP2007212567A (en) * | 2006-02-07 | 2007-08-23 | Fuji Xerox Co Ltd | Optical connector and method for manufacturing optical connector |
| EP2581776A1 (en) * | 2011-10-13 | 2013-04-17 | Tyco Electronics Svenska Holdings AB | Optical connector with alignment element, optical unit and assembly method |
| CN103487898B (en) * | 2012-06-13 | 2016-09-28 | 鸿富锦精密工业（深圳）有限公司 | Optical path switching module and optical-fiber coupling connector |
| CN104864363B (en) * | 2014-02-25 | 2018-11-13 | 南宁富桂精密工业有限公司 | The light-guiding pillar of multiple LED light sources can be conducted |
| CN205301622U (en) * | 2016-01-15 | 2016-06-08 | 锐达互动科技股份有限公司 | Change light -directing structure of light path |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2697670Y (en) * | 2002-02-15 | 2005-05-04 | 欧姆龙株式会社 | Optics element and device |
| JP2007212899A (en) * | 2006-02-10 | 2007-08-23 | Omron Corp | Optical transmission line, optical transmission module, and electronic equipment |
| JP2008275770A (en) * | 2007-04-26 | 2008-11-13 | Kyocera Corp | Optical path changer, optical path change structure, composite optical transmission board and optical module |
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