CN102889526A - LED (Light-Emitting Diode) rod-like light source for image reading device and manufacturing method - Google Patents
LED (Light-Emitting Diode) rod-like light source for image reading device and manufacturing method Download PDFInfo
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- CN102889526A CN102889526A CN201210398091XA CN201210398091A CN102889526A CN 102889526 A CN102889526 A CN 102889526A CN 201210398091X A CN201210398091X A CN 201210398091XA CN 201210398091 A CN201210398091 A CN 201210398091A CN 102889526 A CN102889526 A CN 102889526A
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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 light source that the present invention relates to use in the image read-out, specifically a kind of reading device easy to process LED rod type light source and manufacture method.
Background technology
Fig. 1 is the sectional view of conventional images reading device and LED rod type light source.1 is the LED rod type light source among the figure, the 2nd, and the light-passing board of lift-launch original copy, the 3rd, lens, the 4th, the framework of each parts of carrying image reading device, the 6th, the surface-mounted integrated circuit 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, see through light-passing board 2, be radiated on the original copy (not shown in FIG.), the black region light of literal is absorbed on the original copy, and in the former white undercolor region of doing other, light is almost by 100% total reflection, these reverberation pass light-passing board 2 again, collected by lens 3, shine in the photosensitive area of the photographic department 5 on the surface-mounted integrated circuit 6, photographic department 5 converts the optical signal that receives to the signal of telecommunication and exports by overdrive circuit, thereby 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 wherein is to adopt mold injection, one-time formed method to obtain the LED substrate that illuminating part needs, and then carry out emitting led mounting at the LED substrate, pressure welding and encapsulation finish.Fig. 2 is the structural representation of existing LED rod type light source.1 is the LED illuminating part among the figure, the 2nd, and light conductor, the 3rd, light conductor shell.
But the LED illuminating part of above-mentioned LED rod type light source, carry emitting led LED substrate and need to adopt mold injection, one-time formed method obtains, the dimensional accuracy that requires is very high, the inner copper coin that connects emitting led light path of LED substrate, processing method is the copper coin of the emitting led light path of first etching, again the copper coin of emitting led light path is placed on and fills injection moulding in the mold cavity, then carry out silver-plated processing 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 expensive always by obtaining from Japanese import.In recent years along with the development of domestic science and technology, although also attempt the die sinking injection molding, because size is little, precision prescribed is high, so die cost is also very high, and the moulding of LED substrate is also always bad with last silver-plated effect, discarded rate is very high, serious waste phenomenon etc.
And the LED illuminator of above-mentioned LED rod type light source, after in case the LED substrate is determined, the emitting led maximum numbers that not only can carry are 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 present LED substrate, can only use traditional light conductor and light conductor shell, appearance and size is larger, the improvement of the miniaturized structure that serious obstruction image read-out carries out in order to adapt to market demand, simultaneously the rising angle of LED rod type light source can not change as required, therefore can not satisfy on the industry such as finance about currency examine and false proof etc. discriminating need of work.And manufacturing cost is higher, is difficult for popularizing.
Summary of the invention
Technical problem to be solved by this invention is: by adjusting the Structural Tectonics of LED rod type light source illuminating part, improve the luminous power of LED rod type light source, can be suitable for flexibly new structure and the performance requirement of image read-out, change the design feature that traditional rod type light source was unalterable in the past and the problem that affects the image read-out architecture advances, satisfy the market demand that grows stronger day by day, and a kind of image read-out LED rod type light source and the manufacture method that propose.
The present invention can reach by following measure:
A kind of image read-out LED rod type light source, be provided with LED illuminating part, light conductor and light conductor shell three parts, it is characterized in that the LED illuminating part is comprised of LED substrate and LED cap two parts, the LED substrate is provided with emitting led, the LED calotte is covered with and emitting led and peripherally is connected with the LED substrate, the light conductor shell is connected with the LED cap, have the LED window on LED cap corresponding to light conductor, described LED substrate generally adopts the PCB wiring board, that described LED window can adopt is square, circular, polygon and drops shape, matches mutually with the shape with light conductor.
A kind of image read-out LED rod type light source manufacture method is characterized in that step is as follows:
Step 1, mount and pressure welding actual load technique at the LED substrate emitting led, the LED substrate adopts the PCB wiring board, emitting ledly carries out bonding die by die Bonder at the PCB wiring board and connects, and carries out hot setting after bonding die is finished, and then carry out pressure welding actual load technique by press welder
The present invention is owing to be provided with the LED cap; the LED number that the LED rod type light source can be held is greater than existing LED rod type light source; described LED cap can be according to the needs of LED rod type light source performance and changes shape; the Structural Tectonics of LED illuminating part can be changed as required and flexibly; simultaneously emitting led rising angle also can change flexibly according to the needs of image device; so the shape and structure of illuminator and illuminator shell also can change as required; such as the improvement to miniaturization; to satisfy finance; the fields such as security are to currency examine and false proof discriminating need of work; the LED cap can adopt mold injection to process; so easy to process; reduce processing charges; main is, and that the LED cap can be protected is emitting led not by outside destroy; can also block because emitting led too much; increased luminous intensity; also can be by the setting of LED window position; regulate the luminous excessively strong problem in LED rod type light source end; institute is so that the LED rod type light source has easily manufacturedly, and price is low and the manufacturing cycle short; flexibility is stronger; the advantages such as applicability is wide.
Description of drawings
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 invention 1.
Fig. 5 is the structural representation of the embodiment of the invention 2.
Fig. 6 is the structural representation of the embodiment of the invention 3.
Fig. 7 is LED window schematic diagram of the present invention.
Mark among the 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 substrate 101, LED cap 102, emitting led 103.
The specific embodiment
The invention will be further described with enforcement below in conjunction with accompanying drawing:
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, it is characterized in that LED illuminating part 10 is comprised of LED substrate 101 and LED cap 102 two parts, LED substrate 101 is provided with emitting led 103, LED cap 102 cover caps emitting led 103 and the periphery be connected with LED substrate 101, the light conductor shell is connected with LED cap 102, have the LED window on LED cap 102 corresponding to light conductor, the described LED substrate 101 general PCB wiring boards that adopt, described LED window can adopt square, circular, polygon and drops shape, match mutually with the shape with light conductor, it is characterized in that step is as follows:
Step 1, mount and pressure welding actual load technique at LED substrate 101 emitting led 103, LED substrate 101 adopts the PCB wiring board, emitting led 103 carry out bonding die by die Bonder at the PCB wiring board connects, after finishing, bonding die carries out hot setting, and then carry out pressure welding actual load technique by press welder
The present invention is owing to be provided with the LED cap; the LED number that the LED rod type light source can be held is greater than existing LED rod type light source; described LED cap can be according to the needs of LED rod type light source performance and changes shape; the Structural Tectonics of LED illuminating part can be changed as required and flexibly; simultaneously emitting led rising angle also can change flexibly according to the needs of image device; so the shape and structure of illuminator and illuminator shell also can change as required; such as the improvement to miniaturization; to satisfy finance; the fields such as security are to currency examine and false proof discriminating need of work; the LED cap can adopt mold injection to process; so easy to process; reduce processing charges; main is, and that the LED cap can be protected is emitting led not by outside destroy; can also block because emitting led too much; increased luminous intensity; also can be by the setting of LED window position; regulate the luminous excessively strong problem in LED rod type light source end; institute is so that the LED rod type light source has easily manufacturedly, and price is low and the manufacturing cycle 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 100 is the luminescence window of LED illuminating part among the figure, and 101 for carrying the LED substrate of luminescence unit, and 102 is the LED cap that connects together with LED substrate rivet welding.The characteristics of present embodiment are: adopt the light conductor of the LED rod type light source of present embodiment to compare with existing LED rod type light source with shell, be the contour structures of miniaturization, so the use of more convenient image read-out, the appearance and size of also greatly having dwindled 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 100 is the luminescence window of LED illuminating part among the figure, and 101 for carrying the LED substrate of luminescence unit, and 102 is the LED cap that connects together with LED substrate rivet welding.The characteristics of present embodiment are: the LED window on the LED cap 102 adopts drops, the light conductor contour structures of the LED rod type light source of present embodiment also is drops, so widened the scope of application to light conductor, also allow the LED rod type light source become more diversified, applicable wider, more flexible.
Embodiment 3:
Fig. 6 is the structural representation of another embodiment of LED rod type light source of the present invention, and 100 is the luminescence window of LED illuminating part among the figure, and 101 for carrying the LED substrate of luminescence unit, and 102 is the LED cap that connects together with LED substrate rivet welding.The characteristics of present embodiment are: adopt the rising angle of the LED rod type light source of present embodiment to be adjusted into 35 special degree and 50 degree light sources etc.
Embodiment 4:
In embodiment 1-3, the luminescence window 100 of LED illuminating part is interior can only put 1 emitting led 103, also can put 2,3,4,5 etc. a plurality of emitting led 103, in luminescence window 100 emitting led 103 in, as required, the light that can send out simultaneously color a kind of, also can send out simultaneously the light of different colours, as shown in Figure 7.
Claims (5)
1. image read-out LED rod type light source, be provided with LED illuminating part, light conductor and light conductor shell three parts, it is characterized in that the LED illuminating part is comprised of LED substrate and LED cap two parts, the LED substrate is provided with emitting led, the LED calotte is covered with and emitting led and peripherally is connected with the LED substrate, the light conductor shell is connected with the LED cap, has the LED window on LED cap corresponding to light conductor.
2. an image read-out is characterized in that step is as follows with LED rod type light source manufacture method:
Step 1, mount and pressure welding actual load technique at the LED substrate emitting led, the LED substrate adopts the PCB wiring board,
Step 2, according to the end shape of layout emitting led on the LED substrate and light conductor shell processing LED cap, corresponding light conductor place offers the LED window similar to the light conductor shape on the LED cap,
Step 3, LED cap openend cover cap emitting led and peripherally be connected with the LED substrate, the LED cap encapsulates and hot setting with the LED window of special glue to the rivet welding body after carrying out the rivet welding assembling by riveting welder again,
Step 4, the end of light conductor shell is connected with the LED cap, and makes light conductor corresponding with the LED window, the LED cap with encapsulate after LED substrate rivet welding is connected, encapsulation adopts special glue that the LED window of rivet welding body is encapsulated and hot setting.
3. described a kind of image read-out LED rod type light source according to claim 1 is characterized in that the LED substrate adopts the PCB wiring board.
4. described a kind of image read-out LED rod type light source according to claim 1 is characterized in that the LED window is square, circular, polygon or water-drop-shaped.
5. described a kind of image read-out according to claim 2 is with LED rod type light source manufacture method, it is characterized in that emitting ledly carrying out bonding die by die Bonder at the PCB wiring board and connecting, carry out hot setting after bonding die is finished, 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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| 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 true CN102889526A (en) | 2013-01-23 |
| CN102889526B CN102889526B (en) | 2015-04-01 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11134918A (en) * | 1997-03-04 | 1999-05-21 | Matsushita Electric Ind Co Ltd | Linear lighting system |
| CN1655346A (en) * | 2004-02-13 | 2005-08-17 | 上海三思科技发展有限公司 | A heat radiation needle arrangement for improving LED temperature rise |
| 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 |
| JP2008077888A (en) * | 2006-09-19 | 2008-04-03 | Sharp Corp | Illumination device |
| CN201739919U (en) * | 2010-08-20 | 2011-02-09 | 威海华菱光电有限公司 | Lighting source for image reading device |
| CN102097545A (en) * | 2010-11-19 | 2011-06-15 | 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 |
| 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 |
-
2012
- 2012-10-19 CN CN201210398091.XA patent/CN102889526B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11134918A (en) * | 1997-03-04 | 1999-05-21 | Matsushita Electric Ind Co Ltd | Linear lighting system |
| CN1655346A (en) * | 2004-02-13 | 2005-08-17 | 上海三思科技发展有限公司 | A heat radiation needle arrangement for improving LED temperature rise |
| 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 |
| JP2008077888A (en) * | 2006-09-19 | 2008-04-03 | Sharp Corp | Illumination device |
| CN201739919U (en) * | 2010-08-20 | 2011-02-09 | 威海华菱光电有限公司 | Lighting source for image reading device |
| CN102097545A (en) * | 2010-11-19 | 2011-06-15 | 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 李春茂: "《LED结构原理与应用技术》", 31 December 2010 * |
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