CN111025493B - Optical transmission device - Google Patents
Optical transmission device Download PDFInfo
- Publication number
- 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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- CN
- China
- Prior art keywords
- optical
- circuit board
- printed circuit
- light
- transmission device
- Prior art date
- 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
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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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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
The invention discloses an optical transmission device, which comprises a printed circuit board, and an optical receiver, an optical transmitter and an electronic circuit which are arranged on the printed circuit board, wherein the optical transmitter and the optical receiver are connected with the electronic circuit, the optical transmission device also comprises an optical path turning unit which is covered on the printed circuit board, the optical path turning unit comprises a cover body and an L-shaped optical conductor which is arranged on the cover body, one part of the L-shaped optical conductor is vertical to the printed circuit board, the other part of the L-shaped optical conductor is parallel to the printed circuit board, and one end of the L-shaped optical conductor which is vertical to the printed circuit board is coupled with the optical transmitter. The optical transmission device provided by the invention overcomes the defect that the traditional optical transmission device is not easy to package in order to emit parallel light.
Description
Technical Field
The invention belongs to the technical field of optical communication, and particularly relates to an optical transmission device.
Background
With the rapid development of the internet, demands of people for network resources are rapidly growing, and requirements for speed and flow are met, so that the optical communication technology is developed at a high speed. In the field of optical communications, an optical module is an important device for converting light into electricity. The optical module has high transmission rate, small volume and hot plug property, and is widely applied to optical communication systems. The optical module is used for converting the electric signal of the transmitting end equipment into an optical signal, reaching a destination through a transmission signal, and converting the optical signal back into an electric signal for the receiving end equipment.
The optical module typically 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, an electronic circuit is arranged on the printed circuit board, and the light receiver and the light emitter are both connected with the electronic circuit on the printed circuit board. As shown in fig. 1 of the drawings, in the conventional optical transmission device, a laser emitter 10 'is disposed on a circuit board 30', so that the laser light needs to be emitted parallel to the direction of the circuit board 30 'for the volume setting of the whole device, and therefore, the laser emitter 10' is vertically disposed on the circuit board 30', but such a disposition is not beneficial to the packaging process of the circuit board, and the laser emitter 10' is easy to displace after shaking, thereby affecting the accuracy of optical signal transmission. The chinese patent document with publication number CN208109866U discloses a photoelectric sensor comprising: an optical transmitter, an optical receiver, a printed circuit board, and a processing circuit, the optical transmitter, the optical receiver, and the processing circuit being respectively connected to the printed circuit board, the optical transmitter being configured to transmit an optical signal; the optical receiver is configured to receive an optical signal emitted by the optical emitter and output an electrical signal to the processing circuit based on the received optical 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.
In view of the foregoing, there is a need for an optical module (optical transmission device) that facilitates the packaging process of a circuit board.
Disclosure of Invention
The invention aims to provide an optical transmission device, which overcomes the defect that the traditional optical transmission device is not easy to package in order to emit parallel light.
The invention provides the following technical scheme:
the optical transmission device comprises a printed circuit board, and a light receiver, a light emitter and an electronic circuit which are arranged on the printed circuit board, wherein the light emitter and the light receiver are connected with the electronic circuit, and the light emitter is arranged on the printed circuit board in parallel; the light transmission device also comprises a light path turning unit covered on the printed circuit board, wherein the light path turning unit comprises a cover body and an L-shaped light conductor arranged on the cover body, one part of the L-shaped light conductor is perpendicular to the printed circuit board, the other part of the L-shaped light conductor is parallel to the printed circuit board, and one end of the L-shaped light conductor perpendicular to the printed circuit board is coupled with the light emitter.
The printed circuit board is provided with a plurality of light emitters, and the cover body is provided with L-shaped light conductors with corresponding quantity so as to realize one-to-one coupling of the light emitters and the L-shaped semiconductors.
The light emitters are arranged on the printed circuit board in parallel to generate optical signals perpendicular to the printed circuit board, and the optical signals are turned by the L-shaped light conductors to generate optical signals parallel to the printed circuit board. Therefore, by arranging the light path turning unit, the invention can enable the light generated by the light emitter to emit at an angle parallel to the substrate even if the light emitter is arranged in parallel behind the printed circuit board, thereby reducing the difficulty of packaging.
Preferably, the cover body is provided with an L-shaped groove, and the L-shaped groove is used for cutting in the L-shaped light conductor.
Preferably, the light emitter is a laser light emitter.
Preferably, the light emitter is a laser diode.
Preferably, the L-type semiconductor is an optical fiber.
In the optical transmission device provided by the invention, the printed circuit board is in telecommunication connection with an indication signal source for driving the light emitter to emit light signals, and the light emitting unit is driven by the indication signal source to provide information content represented by the light signals.
Compared with the prior art, the technical scheme provided by the invention has the advantages that the direction of the optical signal generated by the optical transmitter is turned by arranging the optical path turning unit, so that the defect of packaging process caused by vertically arranging the laser transmitter on the circuit board in the prior art can be overcome, and the stability of the optical transmitter can be increased.
Drawings
Fig. 1 is a schematic view of a conventional optical transmission device.
Fig. 2 is a schematic structural diagram of an optical transmission device for transmitting information in the present invention.
Fig. 3 is a schematic diagram of a structure in which an L-shaped optical conductor is coupled to an optical transmitter in an optical transmission device according to the present invention.
Detailed Description
Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the present disclosure by describing embodiments of the present invention by way of specific examples. Furthermore, the invention is capable of other and different embodiments and of being practiced or being carried out in various modifications and alterations without departing from the spirit of the invention.
As shown in fig. 1, the conventional optical transmission apparatus is provided with a laser transmitter 10 'on a circuit board 30' to generate an optical signal parallel to the circuit board.
Referring to fig. 2 and 3, the optical transmission device 1 provided in this embodiment includes: the light source comprises a plurality of light emitters 10, a light path turning unit 20 and a printed circuit board 30, wherein an electronic circuit for electrically connecting the rain emitters 10 is arranged on the printed circuit board 30, and the light emitters 10 are arranged on the printed circuit board 30 in parallel. The optical path turning unit 10 includes a cover and a plurality of L-shaped light conductors 202 disposed on the cover, one portion of the L-shaped light conductors 202 being perpendicular to the printed circuit board, the other portion being parallel to the printed circuit board, one end of the L-shaped light conductors 202 perpendicular to the printed circuit board 30 being coupled with the light emitters 10.
The cover of the optical path turning unit 20 covers the light emitter 10 and the printed circuit board 30, and a plurality of L-shaped grooves 201 for cutting into the L-shaped light conductor 202 are formed in the cover of the optical path turning unit 20. The specific preparation may be to insert the molded L-shaped light conductor into the L-shaped groove 201, or to pour the molten light guiding material into the groove for molding, for example: glass, plastic, PC or PMMA material.
Wherein the light emitter 10 is a laser light emitter, such as a laser diode. The laser diode used in the optical fiber communication system is coherent light, which has high luminous efficiency and good reliability, and can optimize the wavelength.
The L-shaped optical conductor 202 is an optical fiber.
In the optical transmission device provided in this embodiment, although the optical transmitters 10 are disposed in parallel on the printed circuit board 30, the optical signals perpendicular to the printed circuit board 30 are generated and transmitted to the L-shaped optical conductors 202 coupled with the optical transmitters 10, the L-shaped optical conductors 202 transmit and turn the optical signals, and the optical signals perpendicular to the printed circuit board 30 are turned by the L-shaped optical conductors 202 to generate the optical signals parallel to the printed circuit board. Therefore, even if the light emitters 10 are arranged on the printed circuit board 30 in parallel, the light signals generated by the light emitters 10 can be emitted parallel to the printed circuit board 30 by the light path unit 20, so that the packaging process of the subsequent printed circuit board 30 is easier
The above embodiments are merely illustrative, and the claimed invention should not be limited to the above embodiments, but rather should be construed according to the claims.
Claims (4)
1. The light transmission device comprises a printed circuit board, and a light receiver, a light emitter and an electronic circuit which are arranged on the printed circuit board, wherein the light emitter and the light receiver are connected with the electronic circuit; the optical transmission device comprises an optical path turning unit covered on a printed circuit board, wherein the optical path turning unit comprises a cover body and a plurality of L-shaped optical conductors arranged on the cover body, one part of each L-shaped optical conductor is perpendicular to the printed circuit board, the other part of each L-shaped optical conductor is parallel to the printed circuit board, the two parts are communicated, and one end of each L-shaped optical conductor perpendicular to the printed circuit board is coupled with one optical transmitter, so that an optical signal emitted by the optical transmitter is turned to form an optical signal which is parallel to the printed circuit board after passing through the L-shaped optical conductor and is emitted;
the cover body is provided with an L-shaped groove, and the L-shaped groove is used for cutting into the whole L-shaped light guide body.
2. The light transmission device for the packaging process of a circuit board according to claim 1, wherein the light emitter is a laser light emitter.
3. The light transmission device for the packaging process of a circuit board according to claim 2, wherein the light emitter is a laser diode.
4. The optical transmission device for the packaging process of a circuit board according to claim 1, wherein the L-shaped optical conductor is an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311882.2A CN111025493B (en) | 2019-12-18 | 2019-12-18 | Optical transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311882.2A CN111025493B (en) | 2019-12-18 | 2019-12-18 | Optical transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111025493A CN111025493A (en) | 2020-04-17 |
| CN111025493B true CN111025493B (en) | 2023-05-23 |
Family
ID=70210648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911311882.2A Active CN111025493B (en) | 2019-12-18 | 2019-12-18 | Optical transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111025493B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 conversion body, optical path conversion structure, composite optical transmission substrate, and optical module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002090586A (en) * | 2000-09-13 | 2002-03-27 | Matsushita Electric Ind Co Ltd | Optical/electronic circuit module and method for 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 |
-
2019
- 2019-12-18 CN CN201911311882.2A patent/CN111025493B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 conversion body, optical path conversion structure, composite optical transmission substrate, and optical module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111025493A (en) | 2020-04-17 |
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