CN103433176A - Novel dispenser with fluorescent powder thickness visual detection device - Google Patents
Novel dispenser with fluorescent powder thickness visual detection device Download PDFInfo
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- CN103433176A CN103433176A CN2013103616665A CN201310361666A CN103433176A CN 103433176 A CN103433176 A CN 103433176A CN 2013103616665 A CN2013103616665 A CN 2013103616665A CN 201310361666 A CN201310361666 A CN 201310361666A CN 103433176 A CN103433176 A CN 103433176A
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- material thickness
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Abstract
A novel dispenser with a fluorescent powder thickness visual detection device comprises a dispenser, a laser transmitter, a camera with an image processing function and a mechanical fixing device, can be used for calculating the thickness of the fluorescent powder by collecting images formed on the camera by light reflected by the surface of an LED chip surface before and after dispensing, and can be used for judging whether the dispensing thickness is qualified or not. According to the invention, the automation program of LED dispensing can be improved, the production efficiency is improved, and the dispensing quality can be detected.
Description
Technical field
The present invention relates to the point gum machine in the LED encapsulation process, particularly relate to a kind of novel spot gluing machine with fluorescent material thickness vision inspection apparatus.
Background technology
LED is Light-Emitting Diode (Light Emitting Diode), is a kind ofly electric energy conversion to be become to the semiconductor devices of visible ray.In applications such as illumination and demonstrations, LED possesses the characteristics such as low-power consumption, long-life, and market prospects are boundless.In LED illumination, mainly by excitated fluorescent powder, transform and obtain white light at present, obtain white light after the yellow light mix obtained after the blue light sent as blue-light LED chip and blue-light excited fluorescent material.The white light colour rendering that this method cost is low, manufacture craft simple, form is good, and most white light LEDs all adopt this mode to make.
At present this method for preparing white light LEDs mainly adopts traditional gluing process, and the colloid that is about to be mixed with fluorescent material is used the point gum machine of syringe-shaped to drop on LED chip, and the isocolloid volatilization, stay LED fluorescent material and cover on LED chip.This method is simple to operate, and a lot of relatively ripe point gum machines are also arranged on the market, but is not easy to control the thickness of phosphor powder layer.If the thickness of fluorescent material is defective, the light that corresponding LED final products send is not pure white, becomes substandard products and eliminate after the color-division meter detects.If there is no the checkout gear of fluorescent material thickness, the underproof LED product of the thickness of fluorescent material needs the same operations such as injecting glue through back, can waste a lot of productivity resources.
Summary of the invention
For above-mentioned technical problem, the present invention is intended to solve the problems of the technologies described above at least to a certain extent, and a kind of simple in structure, precision good, automaticity is high novel spot gluing machine with fluorescent material thickness vision inspection apparatus is provided.
The present invention adopts following technical scheme to realize:
A kind of novel spot gluing machine with fluorescent material thickness vision inspection apparatus, comprise point gum machine, also comprises the vision inspection apparatus for detection of fluorescent material thickness be arranged on the LED point gum machine.
Further, described vision inspection apparatus comprises generating laser on the mechanical fastening system that is arranged on point gum machine one side, be arranged on the video camera with image processing function on the mechanical fastening system of point gum machine opposite side, and described video camera is connected with the PC circuit.
Further, generating laser and video camera are fixed by mechanical device, make the laser of launching be mapped to the surface of LED chip with the fixed angle necessarily tilted, and the ray cast that makes the LED chip surface reflection is to video camera.
Further, the relative distance of described generating laser and video camera, setting angle are adjustable.
Compared with prior art, advantage applies of the present invention exists: the thickness that calculates fluorescent material by light formed image on video camera of LED chip surface reflection before and after the glue of collection point, whether qualified for judging point glue thickness, the present invention can effectively improve the automated procedures of LED point glue, enhance productivity, test point colloid amount.
The accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram for the embodiment of the present invention.
Fig. 2 is the image that camera acquisition arrives.
Shown in figure, be: the 1-generating laser; The 2-point gum machine; The 3-video camera; The 4-PC machine; The 5-hot spot; The 6-barycenter.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention, but embodiments of the present invention are not limited to this.
As shown in Figure 1, a kind of novel spot gluing machine with fluorescent material thickness vision inspection apparatus, comprise point gum machine 2, also comprises the vision inspection apparatus for detection of fluorescent material thickness be arranged on LED point gum machine 2.
Further, described vision inspection apparatus comprises generating laser 1 on the mechanical fastening system that is arranged on point gum machine 2 one sides, be arranged on the video camera with image processing function 3 on the mechanical fastening system of point gum machine 2 opposite sides, and described video camera is connected with PC 4 circuit.
Further, generating laser 1 and video camera 3 are fixed by mechanical device, make the laser of launching be mapped to the surface of LED chip with the fixed angle necessarily tilted, and the ray cast that makes the LED chip surface reflection is to video camera 3.
Further, relative distance, the setting angle of described generating laser 1 and video camera 3 is adjustable, and LASER Light Source and video camera are mounted on guide rail, can adjust distance.Simultaneously, LASER Light Source and video camera can also be adjusted setting angle, to guarantee image quality.
During use, by the generating laser Emission Lasers, to the LED chip surface, laser reflexes to video camera 3 at chip surface, after video camera 3 imagings, image is sent to PC 4 and carries out analytical calculation.
At first gather an image before a glue, as Fig. 2, position in the barycenter 6 place images of calculating hot spot 5, then put glue, isocolloid volatilization is complete stay fluorescent material after, gather again an image and calculate the position in the barycenter 6 place images of hot spot 5, contrast the difference of two positions, by algorithm, calculate thickness.Thereby judge that whether thickness is up to standard.
The above embodiment of the present invention is only for example of the present invention clearly is described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.
Claims (4)
1. the novel spot gluing machine with fluorescent material thickness vision inspection apparatus, comprise point gum machine (2), and its characteristics are: also comprise the vision inspection apparatus for detection of fluorescent material thickness be arranged on LED point gum machine (2).
2. the novel spot gluing machine with fluorescent material thickness vision inspection apparatus according to claim 1, it is characterized in that: described vision inspection apparatus comprises generating laser (1) on the mechanical fastening system that is arranged on point gum machine (2) one sides, be arranged on the video camera with image processing function (3) on the mechanical fastening system of point gum machine (2) opposite side, and described video camera is connected with PC (4) circuit.
3. the novel spot gluing machine with fluorescent material thickness vision inspection apparatus according to claim 2, it is characterized in that: generating laser (1) and video camera (3) are fixed by mechanical device, make the laser of launching be mapped to the surface of LED chip with the fixed angle necessarily tilted, and the ray cast of LED chip surface reflection is arrived on video camera (3).
4. the novel spot gluing machine with fluorescent material thickness vision inspection apparatus according to claim 3, it is characterized in that: relative distance, the setting angle of described generating laser (1) and video camera (3) are adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103616665A CN103433176A (en) | 2013-08-20 | 2013-08-20 | Novel dispenser with fluorescent powder thickness visual detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103616665A CN103433176A (en) | 2013-08-20 | 2013-08-20 | Novel dispenser with fluorescent powder thickness visual detection device |
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| CN103433176A true CN103433176A (en) | 2013-12-11 |
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| CN2013103616665A Pending CN103433176A (en) | 2013-08-20 | 2013-08-20 | Novel dispenser with fluorescent powder thickness visual detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060823A (en) * | 2018-08-03 | 2018-12-21 | 珠海格力智能装备有限公司 | The thermal grease coating quality detection method and device of radiator |
| CN113507830A (en) * | 2021-06-30 | 2021-10-15 | 武汉飞恩微电子有限公司 | Chip mounter online detection method, device, equipment and storage medium |
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| US20030146701A1 (en) * | 1998-07-08 | 2003-08-07 | Hiroyuki Kawamura | Plasma display panel manufacturing method for manufacturing a plasma display panel with superior picture quality, a manufacturing apparatus, and a phosphor ink |
| JP4232979B2 (en) * | 2005-07-28 | 2009-03-04 | Ｔｄｋ株式会社 | Image processing method and apparatus for liquid coating material, and liquid coating apparatus |
| CN101699638A (en) * | 2009-10-30 | 2010-04-28 | 中山大学 | Phosphor powder film making method and obtained phosphor powder film encapsulating method |
| CN103128041A (en) * | 2013-02-07 | 2013-06-05 | 华南理工大学 | Full automatic fluorescent powder coating process and device |
| CN103143484A (en) * | 2013-02-07 | 2013-06-12 | 华南理工大学 | Method for controlling phosphor powder coating thickness |
| CN203425993U (en) * | 2013-08-20 | 2014-02-12 | 华南理工大学 | Novel dispenser with fluorescent powder thickness vision detector |
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2013
- 2013-08-20 CN CN2013103616665A patent/CN103433176A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030146701A1 (en) * | 1998-07-08 | 2003-08-07 | Hiroyuki Kawamura | Plasma display panel manufacturing method for manufacturing a plasma display panel with superior picture quality, a manufacturing apparatus, and a phosphor ink |
| JP4232979B2 (en) * | 2005-07-28 | 2009-03-04 | Ｔｄｋ株式会社 | Image processing method and apparatus for liquid coating material, and liquid coating apparatus |
| CN101699638A (en) * | 2009-10-30 | 2010-04-28 | 中山大学 | Phosphor powder film making method and obtained phosphor powder film encapsulating method |
| CN103128041A (en) * | 2013-02-07 | 2013-06-05 | 华南理工大学 | Full automatic fluorescent powder coating process and device |
| CN103143484A (en) * | 2013-02-07 | 2013-06-12 | 华南理工大学 | Method for controlling phosphor powder coating thickness |
| CN203425993U (en) * | 2013-08-20 | 2014-02-12 | 华南理工大学 | Novel dispenser with fluorescent powder thickness vision detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060823A (en) * | 2018-08-03 | 2018-12-21 | 珠海格力智能装备有限公司 | The thermal grease coating quality detection method and device of radiator |
| CN113507830A (en) * | 2021-06-30 | 2021-10-15 | 武汉飞恩微电子有限公司 | Chip mounter online detection method, device, equipment and storage medium |
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Application publication date: 20131211 |