CN104678510A - Method for assembling optical communication module - Google Patents
Method for assembling optical communication module Download PDFInfo
- Publication number
- CN104678510A CN104678510A CN201310608348.4A CN201310608348A CN104678510A CN 104678510 A CN104678510 A CN 104678510A CN 201310608348 A CN201310608348 A CN 201310608348A CN 104678510 A CN104678510 A CN 104678510A
- Authority
- CN
- China
- Prior art keywords
- substrate
- lens
- communication module
- optical communication
- lens unit
- 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.)
- Pending
Links
Classifications
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4221—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements involving a visual detection of the position of the elements, e.g. by using a microscope or a camera
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4244—Mounting of the optical elements
Abstract
An optical communication module comprises a substrate, electronic components, and a lens unit coupled to the electronic components. A surface, towards the substrate, of the lens unit is provided with lenses, and the lens unit is further provided with through holes. The central axis of the lenses and the central axis of the through holes are perpendicular to the substrate. A predetermined spacing is kept between a plane where the central axis of the through holes is located and a plane where the central axis of the lenses is located. A method for assembling the optical communication module comprises the following steps: fixing the substrate and arranging the electronic components on the substrate; acquiring first coordinates of the electronic components on the substrate by an image sensor; moving the lens unit to a position above the substrate; acquiring second coordinates of the through holes on the substrate by the image sensor; comparing the first coordinates and the second coordinates, and continuously adjusting the position of the lens unit to enable the predetermined spacing to be kept between the first coordinates and the second coordinates; and fixing the lens unit to the substrate.
Description
Technical field
The present invention is about a kind of assemble method of optical communication module.
Background technology
Current optical communication module comprises substrate, light-emitting component, light receiving element and lens unit, light-emitting component and light receiving element are electrically arranged on substrate, lens unit is fixed on substrate and is used for and light-emitting component and light receiving element optically-coupled, lens unit has the lens be coupled with light-emitting component, light receiving element in the one side of substrate, and light-emitting component, light receiving element need align with lens.
When lens unit is fixed on substrate, the alignment of lens and light-emitting component, light receiving element cannot be observed, now, need the coordinate obtaining lens and light-emitting component, light receiving element by two camera heads respectively, with analysis position relation, this kind of mode needs two camera heads, thus makes assembly cost higher; In addition, lens and light-emitting component, light receiving element are arranged in different coordinate systems, need by coordinate conversion in same coordinate system, thus make assembling process comparatively complicated.
Summary of the invention
In view of this, be necessary to provide a kind of cost low and the assemble method assembling simple optical communication module.
A kind of assemble method of optical communication module, described optical communication module comprises substrate, electronic component and lens unit, described electronic component is arranged on the substrate, described lens unit has at least one group of lens on the surface of described substrate, substrate described in the central axis of described lens, described lens unit is also provided with through hole, substrate described in the central axis of described through hole, between the plane at the plane at the central shaft place of described through hole and the central shaft place of described lens, there is a preset space length, described lens are coupled with described electronic component, described assemble method comprises the steps: fixing base, and described electronic component is arranged on the precalculated position of described substrate, an image sensor is utilized to obtain described electronic component the first coordinate on the substrate, mobile described lens unit is to described surface, described image sensor is utilized to obtain described through hole the second coordinate on the substrate, more described first coordinate and the second coordinate, and the position of the described lens unit of continuous adjustment is to make having described preset space length between described first coordinate and the second coordinate, described lens unit is fixed on the substrate.
Compared to prior art, lens unit of the present invention has through hole, between through hole and lens, there is certain intervals, just successively can obtain the coordinate of electronic component and through hole by a video camera from substrate-side, make cost lower; In addition, the coordinate of lens can be determined by the coordinate of through hole on substrate, and the coordinate of the coordinate of lens and electronic component is arranged in the same coordinate system, does not need to change between coordinate system, makes assembling process simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention optical communication module.
Fig. 2 is the exploded view of embodiment of the present invention optical communication module.
Fig. 3 is the schematic diagram of lens unit in Fig. 1.
Fig. 4 is the schematic diagram of the assemble method of embodiment of the present invention optical communication module.
Main element symbol description
| Optical communication module | 10 |
| Substrate | 11 |
| Lens unit | 12 |
| Light-emitting component | 13 |
| Light receiving element | 14 |
| First surface | 12a |
| Second surface | 12b |
| 3rd surface | 12c |
| First lens | 121 |
| Second lens | 122 |
| 3rd lens | 123 |
| 4th lens | 124 |
| Through hole | 125 |
| Reflecting surface | 126 |
| Image sensor | 20 |
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 10 that the embodiment of the present invention provides comprises substrate 11, lens unit 12, light-emitting component 13 and light receiving element 14, and lens unit 12 is used for realizing the optically-coupled between optical fiber (not shown) and light-emitting component 13, light receiving element 14.
The combination of light-emitting component 13, light receiving element 14 and substrate 11 can be called that photoelectric conversion unit is used for electric signal being converted to light signal and light signal being converted to electric signal.
Light-emitting component 13 and light receiving element 14 are electrically arranged on the substrate 11, and the number of light-emitting component 13 and light receiving element 14 needs the light signal transmitted to determine by optical communication module 10, such as, can be one, two, four or six etc.Light-emitting component 13 is light emitting diode (LED) or laser diode (laser diode, LD), and light receiving element 14 is photodiode (photo diode, PD), and lens unit 12 is fixing on the substrate 11 by the resisting medium such as glue, adhesive tape.
Substrate 11 can be circuit board, and such as, hard circuit board or flexible circuit board, hard circuit board can be made effectively to give out by pottery heat that light-emitting component 13 and light receiving element 14 produce thus make photoelectric conversion unit have the temperature of a relative constancy.
Lens unit 12 has towards the second surface 12b of the first surface 12a of substrate 11, vertical substrate 11 and parallel with first surface 12a and away from the 3rd surperficial 12c of substrate 11.
Optical axis first surface 12a with the first lens 121 and the second lens 122, first lens 121 and the second lens 122 is parallel to each other, be positioned in same plane and vertical substrate 11.
Parallel to each other, the in the same plane and parallel substrate 11 of optical axis second surface 12b with the 3rd lens 123 and the 4th lens the 124, three lens 123 and the 4th lens 124.
3rd surperficial 12c is recessed to form two through holes 125 and a reflecting surface 126 to first surface 12a, the plane at parallel first lens 121 of plane at through hole 125 central shaft place and the optical axis place of the second lens 122 and have a predetermined space d between two planes.Predetermined space d can obtain from first surface 12a measurement.Reflecting surface 126 tilts to through hole 125 direction, and the angle between reflecting surface 126 and the optical axis of the first lens 121, second lens 122, the 3rd lens 123 and the 4th lens 124 is 45 degree, reflecting surface 126 is used for being reflected into and is mapped to light on it and by light conversion 90 degree.
When lens unit 12 is placed on substrate 11, according to predetermined space d, the position of the first lens 121 and the second lens 122 can be determined by the position of through hole 125.
First lens 121 are identical with arrangement mode with the number of arrangement mode and light-emitting component 13 with the number of the 3rd lens 123, and the second lens 122 are identical with arrangement mode with the number of arrangement mode and light receiving element 14 with the number of the 4th lens 124.
The light that light-emitting component 13 sends incides on reflecting surface 126 through the 3rd lens 123, after reflecting surface 126 reflects, through first lens 121 outgoing from lens unit 12; Enter the light of lens unit 12 through the second lens 122 on reflecting surface 126, reflecting surface 126 through the 4th lens 124 outgoing from lens unit 12, is then received by light receiving element 14 after reflecting.
See also Fig. 4, the assembling process of optical communication module 10 is as follows:
First fixing base 11, then light-emitting component 13 and light receiving element 14 are arranged on the precalculated position of substrate 11, image sensor 20 is utilized to take substrate 11, the image of light-emitting component 13 and light receiving element 14, and calculate light-emitting component 13 and light receiving element 14 coordinate on the substrate 11, again lens unit 12 is moved to the top of substrate 11, and utilize image sensor 20 to obtain the image of lens unit 12 and substrate 11, then lens unit 12 coordinate is on the substrate 11 calculated, the coordinate of scioptics unit 12 obtains through hole 125 coordinate on the substrate 11 further, the relatively coordinate of light-emitting component 13 and the coordinate of through hole 125, continuous adjustment lens unit 12 position is on the substrate 11 with the real-time coordinates utilizing image sensor 20 to obtain through hole 125, until the coordinate of the coordinate of light-emitting component 13 and through hole 125 have predetermined space d(or, the coordinate of light receiving element 14 and the coordinate of through hole 125 have predetermined space d), now, first lens 121 and the second lens 122 are aimed at light-emitting component 13 and light receiving element 14 respectively, utilize the resisting mediums such as glue by fixing for lens unit 12 on the substrate 11 to complete the assembling of optical communication module 10.
The lens unit 12 of optical communication module 10 has the through hole 125 between the first lens 121, second lens 122 with predetermined space, position by through hole 125 can draw the first lens 121, second lens 122 relative position on the substrate 11, the function making to utilize an image sensor 20 can realize lens unit 12 and light-emitting component 13, light receiving element 14 to aim at; In addition, the coordinate of the first lens 121 and the second lens 122 can be determined by through hole 125 coordinate on the substrate 11, and the first lens 121 and the coordinate of the second lens 122 and the coordinate of light-emitting component 13 and light receiving element 14 are arranged in the same coordinate system, do not need to change between coordinate system, make assembling process simple.
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. the assemble method of an optical communication module, described optical communication module comprises substrate, electronic component and lens unit, described electronic component is arranged on the substrate, described lens unit has at least one group of lens on the surface of described substrate, the vertical described substrate of optical axis of described at least one group of lens, described lens unit is also provided with through hole, substrate described in the central axis of described through hole, described through hole has a preset space length relative to described at least one group of lens, described lens are used for and described electronic component optically-coupled, the assemble method of described optical communication module comprises the steps:
Fixing described substrate, and described electronic component is arranged on the precalculated position of described substrate;
An image sensor is utilized to obtain described electronic component the first coordinate on the substrate;
Mobile described lens unit is to described surface;
Described image sensor is utilized to obtain described through hole the second coordinate on the substrate;
More described first coordinate and the second coordinate, and the position of the described lens unit of continuous adjustment is to make having described preset space length between described first coordinate and the second coordinate;
When keeping this preset space length, described lens unit is fixed on the substrate.
2. the assemble method of optical communication module as claimed in claim 1, it is characterized in that, described electronic component comprises light-emitting component and light receiving element.
3. the assemble method of optical communication module as claimed in claim 2, it is characterized in that, described light-emitting component is light emitting diode or laser diode.
4. the assemble method of optical communication module as claimed in claim 2, it is characterized in that, described light receiving element is photodiode.
5. the assemble method of optical communication module as claimed in claim 1, it is characterized in that, described image sensor comprises CCD or CMOS.
6. the assemble method of optical communication module as claimed in claim 5, it is characterized in that, described substrate is ceramic circuit board.
7. the assemble method of optical communication module as claimed in claim 1, it is characterized in that, described lens unit comprises reflecting surface further, has the angle of 45 degree between the optical axis of described reflecting surface and described at least one group of lens.
8. the assemble method of optical communication module as claimed in claim 1, is characterized in that, is fixed on the substrate by described lens unit by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608348.4A CN104678510A (en) | 2013-11-27 | 2013-11-27 | Method for assembling optical communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608348.4A CN104678510A (en) | 2013-11-27 | 2013-11-27 | Method for assembling optical communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104678510A true CN104678510A (en) | 2015-06-03 |
Family
ID=53313816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310608348.4A Pending CN104678510A (en) | 2013-11-27 | 2013-11-27 | Method for assembling optical communication module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104678510A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802922A (en) * | 2018-07-11 | 2018-11-13 | 大连藏龙光电子科技有限公司 | A kind of laser emitter assemble method and laser emitter |
| CN110764197A (en) * | 2019-08-14 | 2020-02-07 | 英属维京群岛商祥茂光电科技股份有限公司 | Optical element jointing method for optical transceiver |
| CN113671634A (en) * | 2020-05-13 | 2021-11-19 | 先进科技新加坡有限公司 | System and method for aligning multiple lens elements |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5883988A (en) * | 1996-05-13 | 1999-03-16 | Fujitsu Limited | Optical module including a photoreception device |
| JP2004117699A (en) * | 2002-09-25 | 2004-04-15 | Mitsui High Tec Inc | Tool for assembling connector for optical communication and its assembling method |
| WO2005029658A1 (en) * | 2003-09-22 | 2005-03-31 | Murata Manufacturing Co., Ltd. | Method and device for installing light emitting element |
| US20080298818A1 (en) * | 2007-03-05 | 2008-12-04 | Aprius, Inc. | Optical Receiver for Computing Applications |
-
2013
- 2013-11-27 CN CN201310608348.4A patent/CN104678510A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5883988A (en) * | 1996-05-13 | 1999-03-16 | Fujitsu Limited | Optical module including a photoreception device |
| JP2004117699A (en) * | 2002-09-25 | 2004-04-15 | Mitsui High Tec Inc | Tool for assembling connector for optical communication and its assembling method |
| WO2005029658A1 (en) * | 2003-09-22 | 2005-03-31 | Murata Manufacturing Co., Ltd. | Method and device for installing light emitting element |
| US20080298818A1 (en) * | 2007-03-05 | 2008-12-04 | Aprius, Inc. | Optical Receiver for Computing Applications |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802922A (en) * | 2018-07-11 | 2018-11-13 | 大连藏龙光电子科技有限公司 | A kind of laser emitter assemble method and laser emitter |
| CN110764197A (en) * | 2019-08-14 | 2020-02-07 | 英属维京群岛商祥茂光电科技股份有限公司 | Optical element jointing method for optical transceiver |
| CN113671634A (en) * | 2020-05-13 | 2021-11-19 | 先进科技新加坡有限公司 | System and method for aligning multiple lens elements |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |
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| WD01 | Invention patent application deemed withdrawn after publication |