CN102889526B - Manufacturing method for LED (Light-Emitting Diode) rod-like light source for image reading device - Google Patents
Manufacturing method for LED (Light-Emitting Diode) rod-like light source for image reading device Download PDFInfo
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- CN102889526B CN102889526B CN201210398091.XA CN201210398091A CN102889526B CN 102889526 B CN102889526 B CN 102889526B CN 201210398091 A CN201210398091 A CN 201210398091A CN 102889526 B CN102889526 B CN 102889526B
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Abstract
The invention relates to an image reading device and particularly relates to an LED (Light-Emitting Diode) rod-like light source for the image reading device. The LED rod-like light source is provided with three parts including an LED light-emitting part, a light guide part and a light guide body, and is characterized in that the LED light-emitting part is formed by two parts including an LED substrate and an LED cap; the LED substrate is provided with a light-emitting LED; the LED cap covers the light-emitting LED and the periphery is connected with the LED substrate; the shell of the light guide body is connected with the LED cap; and an LED window is arranged on the light guide body corresponding to the LED cap. The method comprises the following steps of: carrying out surface mounting and pressing-welding mounting processes on the light-emitting LED on the LED substrate; machining the LED cap according to the overall arrangement of the light-emitting LED on the LED substrate and the shape of the end part of the shell of the light guide body; covering the light-emitting LED by the opening end of the LED cap and connecting the periphery with the LED substrate; and connecting the end part of the shell of the light guide body with the LED cap. The LED rod-like light source disclosed by the invention has the advantages of convenience for manufacturing, low price, short manufacturing period, stronger flexibility, long service life, wide applicability and the like.
Description
Technical field
The present invention relates to the light source used in image read-out, specifically a kind of reading device LED rod type light source manufacture method easy to process.
Background technology
Fig. 1 is the sectional view of conventional images reading device and LED rod type light source.In figure, 1 is LED rod type light source, and 2 is carry the light-passing board of original copy, and 3 is lens, and 4 is frameworks of each parts of carrying image reading device, and 6 is surface-mounted integrated circuits of carrying photographic department (photo-sensitive light electric transducer) 5.
In above-mentioned image read-out, the light that LED rod type light source 1 sends, through light-passing board 2, be radiated on original copy (not shown in FIG.), on original copy, the black region light of word is absorbed, and in former white-based color region of doing other, light is almost by 100% total reflection, these reverberation are again through light-passing board 2, collected by lens 3, be irradiated in the photosensitive area of the photographic department 5 on surface-mounted integrated circuit 6, photographic department 5 exports through overdrive circuit after the light signal received being converted to the signal of telecommunication, thus realizes image reading.
In above-mentioned image read-out, existing LED rod type light source is divided into LED illuminating part, light conductor and light conductor shell three parts.LED illuminator is wherein the LED-baseplate adopting mold injection, one-time formed method to obtain illuminating part to need, and then in LED-baseplate, carries out emitting led attachment, pressure welding and encapsulation complete.Fig. 2 is the structural representation of existing LED rod type light source.In figure, 10 is LED illuminating parts, and 20 is light conductors, and 30 is light conductor shells.
But the LED illuminating part of above-mentioned LED rod type light source, carry emitting led LED-baseplate to need to adopt mold injection, one-time formed method obtains, the dimensional accuracy required is very high, LED-baseplate inside connects the copper coin of emitting led light path, processing method is the copper coin first etching emitting led light path, again the copper coin of emitting led light path is placed in mold cavity and carries out filling injection moulding, then silver-plated processing is carried out in the emitting led bond pad surface of lift-launch, technological requirement is high and loaded down with trivial details, we were domestic does not in the past reach such technological requirement always, so this LED substrate is always by obtaining from Japanese import, expensive.In recent years along with the development of domestic science and technology, although also attempt die sinking injection molding, because size is little, precision prescribed is high, so die cost is also very high, and the shaping and finally silver-plated effect of LED-baseplate is also always bad, discarded rate is very high, serious waste phenomenon etc.
And the LED illuminator of above-mentioned LED rod type light source, once after LED-baseplate determines, the emitting led maximum number not only can carried is just fixing, and the structure of the light conductor of LED rod type light source and light conductor shell also must remain unchanged, so limitation is very strong, with regard to current LED-baseplate, traditional light conductor and light conductor shell can only be used, overall dimension is larger, the improvement of miniaturized structure of serious obstruction image read-out in order to adapt to market demand and carry out, the rising angle of LED rod type light source can not change as required simultaneously, therefore finance etc. can not have been met in industry about currency examine and false proof etc. discriminating need of work.And manufacturing cost is higher, not easily popularize.
Summary of the invention
Technical problem to be solved by this invention is: by the structure structure of adjustment LED rod type light source illuminating part, improve the luminous power of LED rod type light source, new structure and the performance requirement of image read-out can be suitable for flexibly, change the design feature that Conventional stick light source was unalterable in the past and the problem affecting image read-out architecture advances, meet the market demand grown stronger day by day, and a kind of image read-out LED rod type light source manufacture method proposed.
The present invention can be reached by following measure:
A kind of image read-out LED rod type light source manufacture method, it is characterized in that step is as follows: step one, in LED-baseplate, attachment and pressure welding actual load technique is carried out by emitting led, LED-baseplate adopts PCB wiring board, step 2, end shape according to layout emitting led in LED-baseplate and light conductor shell processes LED cap, on LED cap, corresponding light conductor place offers the LED window similar to light conductor shape, step 3, LED cap openend cover cap emitting led and periphery to be connected with LED-baseplate, after LED cap carries out rivet welding assembling by riveting welder, encapsulate and hot setting with the LED window of glue to rivet welding body again, step 4, the end of light conductor shell is connected with LED cap, and make light conductor corresponding with LED window.Preferably, emitting ledly in PCB, carry out bonding die connection by die Bonder, carry out hot setting after bonding die completes, and then carry out pressure welding actual load technique by press welder.
The present invention is owing to being provided with LED cap, the LED number that LED rod type light source can be held is greater than existing LED rod type light source, described LED cap can according to the needs of LED rod type light source performance changes shape, the structure of LED illuminating part is constructed can change as required and flexibly, emitting led rising angle also can change according to the needs of image device flexibly simultaneously, so the shape and structure of luminous element and luminous element shell also can change as required, as the improvement to miniaturization, with satisfied finance, the fields such as security are to currency examine and false proof discriminating need of work, LED cap can adopt mold injection to process, so easy to process, reduce processing charges, more importantly LED cap can be protected emitting led not by outside destroy, can also block due to too much emitting led, add luminous intensity, also by the setting of LED window position, regulate the luminous excessively strong problem in LED rod type light source end, so it is easily manufactured to make LED rod type light source have, price is low and the manufacturing cycle is short, flexibility is stronger, the advantages such as applicability is wide.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of conventional images reading device and light source.
Fig. 2 is the structural representation of existing LED rod type light source.
Fig. 3 is the structural representation of LED rod type light source of the present invention.
Fig. 4 is the structural representation of the embodiment of the present invention 1.
Fig. 5 is the structural representation of the embodiment of the present invention 2.
Fig. 6 is the structural representation of the embodiment of the present invention 3.
Fig. 7 is LED window schematic diagram of the present invention.
Mark in figure: LED rod type light source 1, light-passing board 2, lens 3, framework 4, photographic department 5, surface-mounted integrated circuit 6, LED illuminating part 10, light conductor 20 and light conductor shell 30, LED window 100, LED-baseplate 101, LED cap 102, emitting led 103.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described with enforcement: as described in Figure, a kind of image read-out LED rod type light source, be provided with LED illuminating part 10, light conductor 20 and light conductor shell 30 three parts, LED illuminating part 10 is made up of LED-baseplate 101 and LED cap 102 two parts, LED-baseplate 101 is provided with emitting led 103, LED cap 102 cover cap emitting led 103 and periphery is connected with LED-baseplate 101, light conductor shell is connected with LED cap 102, the LED cap 102 that light conductor is corresponding has LED window, described LED-baseplate 101 generally adopts PCB, described LED window can adopt square, circular, polygon and drops shape, with the matching form with light conductor, it is characterized in that step is as follows: step one, in LED-baseplate 101, attachment and pressure welding actual load technique is carried out by emitting led 103, LED-baseplate 101 adopts PCB, emitting led 103 carry out bonding die connection by die Bonder in PCB, hot setting is carried out after bonding die completes, and then carry out pressure welding actual load technique by press welder, step 2, according to the layout of emitting led 103 in LED-baseplate 101 and the end shape processing LED cap 102 of light conductor shell, on LED cap 102, corresponding light conductor place offers the LED window similar to light conductor shape, step 3, LED cap 102 openend cover cap emitting led 103 and periphery is connected with LED-baseplate 101, after LED cap 102 carries out rivet welding assembling by riveting welder, encapsulate and hot setting with the LED window of glue to rivet welding body again, step 4, the end of light conductor shell is connected with LED cap 102, and make light conductor corresponding with LED window.
The present invention is owing to being provided with LED cap, the LED number that LED rod type light source can be held is greater than existing LED rod type light source, described LED cap can according to the needs of LED rod type light source performance changes shape, the structure of LED illuminating part is constructed can change as required and flexibly, emitting led rising angle also can change according to the needs of image device flexibly simultaneously, so the shape and structure of luminous element and luminous element shell also can change as required, as the improvement to miniaturization, with satisfied finance, the fields such as security are to currency examine and false proof discriminating need of work, LED cap can adopt mold injection to process, so easy to process, reduce processing charges, more importantly LED cap can be protected emitting led not by outside destroy, can also block due to too much emitting led, add luminous intensity, also by the setting of LED window position, regulate the luminous excessively strong problem in LED rod type light source end, so it is easily manufactured to make LED rod type light source have, price is low and the manufacturing cycle is short, flexibility is stronger, the advantages such as applicability is wide.
Embodiment 1: Fig. 4 is the structural representation of an embodiment of LED rod type light source of the present invention, and in figure, 100 is the luminescence window of LED illuminating part, and 101 is the LED-baseplate of carrying luminescence unit, and 102 is the LED cap connected together with LED-baseplate rivet welding.The feature of the present embodiment is: adopt the light conductor of LED rod type light source of the present embodiment with shell compared with existing LED rod type light source, be miniaturized contour structures, so the use of more convenient image read-out, also greatly reduce the overall dimension of image read-out simultaneously.
Embodiment 2: Fig. 5 is the structural representation of another embodiment of LED rod type light source of the present invention, and in figure, 100 is the luminescence window of LED illuminating part, and 101 is the LED-baseplate of carrying luminescence unit, and 102 is the LED cap connected together with LED-baseplate rivet welding.The feature of the present embodiment is: the LED window on LED cap 102 adopts drops, the light conductor contour structures of the LED rod type light source of the present embodiment is also drops, so widened the scope of application to light conductor, also allowed LED rod type light source become more diversified, be suitable for more extensively, more flexible.
Embodiment 3: Fig. 6 is the structural representation of another embodiment of LED rod type light source of the present invention, and in figure, 100 is the luminescence window of LED illuminating part, and 101 is the LED-baseplate of carrying luminescence unit, and 102 is the LED cap connected together with LED-baseplate rivet welding.The feature of the present embodiment is: adopt the rising angle of LED rod type light source of the present embodiment to be adjusted to special 35 degree and 50 degree of light sources etc.
Embodiment 4: in embodiment 1-3,1 emitting led 103 only can be put in the luminescence window 100 of LED illuminating part, also 2 can be put, 3,4,5 etc. multiple emitting led 103, in in luminescence window 100 emitting led 103, as required, the light can simultaneously sending out color a kind of, also can send out the light of different colours, as shown in Figure 7 simultaneously.
Claims (2)
1. an image read-out LED rod type light source manufacture method, it is characterized in that step is as follows: step one, in LED-baseplate, attachment and pressure welding actual load technique is carried out by emitting led, LED-baseplate adopts PCB wiring board, step 2, end shape according to layout emitting led in LED-baseplate and light conductor shell processes LED cap, on LED cap, corresponding light conductor place offers the LED window similar to light conductor shape, step 3, LED cap openend cover cap emitting led and periphery to be connected with LED-baseplate, after LED cap carries out rivet welding assembling by riveting welder, encapsulate and hot setting with the LED window of glue to rivet welding body again, step 4, the end of light conductor shell is connected with LED cap, and make light conductor corresponding with LED window.
2. image read-out LED rod type light source manufacture method according to claim 1, it is characterized in that emitting ledly in PCB, carrying out bonding die connection by die Bonder, carry out hot setting after bonding die completes, and then carry out pressure welding actual load technique by press welder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210398091.XA CN102889526B (en) | 2012-10-19 | 2012-10-19 | Manufacturing method for LED (Light-Emitting Diode) rod-like light source for image reading device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210398091.XA CN102889526B (en) | 2012-10-19 | 2012-10-19 | Manufacturing method for LED (Light-Emitting Diode) rod-like light source for image reading device |
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| CN102889526A CN102889526A (en) | 2013-01-23 |
| CN102889526B true CN102889526B (en) | 2015-04-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801876A (en) * | 2004-12-08 | 2006-07-12 | 日本板硝子株式会社 | Illumination device and image scanning device |
| CN2898591Y (en) * | 2006-04-20 | 2007-05-09 | 比乐达国际有限公司 | Light-source mould set |
| CN201739919U (en) * | 2010-08-20 | 2011-02-09 | 威海华菱光电有限公司 | Lighting source for image reading device |
| CN202813110U (en) * | 2012-10-19 | 2013-03-20 | 威海华菱光电股份有限公司 | Light-emitting diode (LED) rodlike light source used on image reading device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11134918A (en) * | 1997-03-04 | 1999-05-21 | Matsushita Electric Ind Co Ltd | Linear lighting system |
| CN1316608C (en) * | 2004-02-13 | 2007-05-16 | 上海三思科技发展有限公司 | A heat radiation needle arrangement for improving LED temperature rise |
| JP4718405B2 (en) * | 2006-09-19 | 2011-07-06 | シャープ株式会社 | Lighting equipment |
| CN102097545B (en) * | 2010-11-19 | 2012-10-24 | 东南大学 | Method for packaging glass-silicon wafer-grade chiponboard (COB) of light emitting diode (LED) |
| CN102738365A (en) * | 2012-06-05 | 2012-10-17 | 华天科技（西安）有限公司 | Novel LED (Light Emitting Diode) packaging piece based on DFN (Double Flat No-lead package) and QFN (Quad Flat No-lead Package), and manufacturing method of packaging piece |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801876A (en) * | 2004-12-08 | 2006-07-12 | 日本板硝子株式会社 | Illumination device and image scanning device |
| CN2898591Y (en) * | 2006-04-20 | 2007-05-09 | 比乐达国际有限公司 | Light-source mould set |
| CN201739919U (en) * | 2010-08-20 | 2011-02-09 | 威海华菱光电有限公司 | Lighting source for image reading device |
| CN202813110U (en) * | 2012-10-19 | 2013-03-20 | 威海华菱光电股份有限公司 | Light-emitting diode (LED) rodlike light source used on image reading device |
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