CN204924968U - AOI light source - Google Patents
AOI light source Download PDFInfo
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- CN204924968U CN204924968U CN201520620358.4U CN201520620358U CN204924968U CN 204924968 U CN204924968 U CN 204924968U CN 201520620358 U CN201520620358 U CN 201520620358U CN 204924968 U CN204924968 U CN 204924968U
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Abstract
The utility model discloses a AOI light source, including coaxial light source of non - and coaxial light source, coaxial light source sets up between coaxial light source of non - and camera, and coaxial light source is equipped with first through -hole along the camera direction, and the coaxial light source of non - is equipped with the second through -hole along the camera direction, and first through -hole sets up with the second through -hole is concentric. The utility model discloses can shoot diffuse reflection objects such as tin cream, components and parts really, coaxial light source sends coaxial light, because coaxial light source is the diffuse reflection light source, the light that sends does not have directive property and luminance lower, can be so that the picture of specular reflection object such as copper foil and hi -lite object is clearly shot to the camera. Is examining time measuring, is treating that detecting object places in shooing effective coverage, using through the cooperation of coaxial light source of non - and coaxial light source, the camera see through first through -hole can shoot really with the second through -hole diffuse reflection has, specular reflection or hi -lite characteristics treat detecting object, make the testing result more reliable, the dispatch from the factory yield of product of improvement.
Description
Technical field
The utility model relates to AOI detection technique field, particularly relates to a kind of AOI light source.
Background technology
The full name of AOI (AutomaticOpticInspection) is automatic optics inspection, is the equipment detected the common deficiency run in welding production based on optical principle.AOI is new a kind of novel test technology of rising, but development rapidly, and a lot of producer is all proposed AOI testing apparatus.Upon automatic detection, machine is by camera autoscan product to be measured, gather image, test solder joint and database in qualified parameter compare, through image procossing, check out the defect of product to be measured, and by display or Automatic Logos Flaw display/mark, repair for maintenance personal.
Existing AOI light source comprises two classes, a class is the light source only containing RGB multi-layer annular light, and such light source is the light source not having axis light, and as fruit product such as element, Copper Foil etc. exist mirror-reflection, so the image obtained taken by camera is exactly black; Another kind of is coaxial light source, can make pcb board and components and parts distortion, make retroreflective regions disorderly and unsystematic, have an impact to measurement.
Utility model content
The utility model provides a kind of AOI light source, can shoot the examined object with diffuse reflection, mirror-reflection or high brightness feature truly, makes testing result more reliable, improves the yield of the product that dispatches from the factory.
The utility model is by the following technical solutions:
First aspect, the utility model provides a kind of AOI light source, comprise non-coaxial light source and coaxial light source, described coaxial light source is arranged between described non-coaxial light source and camera, described coaxial light source is provided with the first through hole along camera shooting direction, described non-coaxial light source is provided with the second through hole along camera shooting direction, and described second through hole is greater than the first through hole and arranges with the first through hole is concentric.
Further, described coaxial light source comprises the shadow shield, light-conductive media and the even tabula rasa that are cascading, and the top of the contiguous described non-coaxial light source of described even tabula rasa, the sidewall of described light-conductive media is pasted with the first LED light source.
Further, described first LED light source comprises red LED lamp, green LED lamp and blue led lamp, and described red LED lamp, green LED lamp and blue led lamp interval are arranged.
Further, described coaxial light source is projected as square along camera shooting direction, and described first LED light source is arranged on four sidewalls of described light-conductive media respectively, and light emission direction is towards described sidewall.
Further, described non-coaxial light source comprises lampshade and the second LED light source, described lampshade is projected as circle along camera shooting direction, and the cross section along camera shooting direction is parabola shaped, and described second LED light source comprises red LED light source ring, green LED light source ring and blue led light source ring.
Further, described red LED light source ring, green LED light source ring and blue led light source ring are arranged from the top of described lampshade successively to openend.
The technical scheme that the utility model provides brings following beneficial effect:
Non-coaxial light source in AOI light source sends non-coaxial light, can shoot the diffuse reflection such as tin cream, components and parts object truly; Coaxial light source sends axis light, and because coaxial light source is diffuse reflection light source, the light sent does not have directive property and brightness is lower, and camera can be made to know the picture of mirror-reflection objects such as shooting Copper Foil and high intensity object.When detecting, examined object is positioned in shooting effective coverage, by non-coaxial light source and coaxial light source with the use of, camera can shoot the examined object with diffuse reflection, mirror-reflection or high brightness feature truly through the first through hole and the second through hole, make testing result more reliable, improve the yield of the product that dispatches from the factory.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model, be briefly described to the accompanying drawing used required in the description of the utility model embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the utility model embodiment and these accompanying drawings.
Fig. 1 is the structural representation of the AOI light source that the utility model provides.
Fig. 2 is the schematic cross-section along direction of taking pictures of the coaxial light source that the utility model provides.
Fig. 3 is the vertical view of the coaxial light source that provides of the utility model along direction of taking pictures.
Fig. 4 is that the non-coaxial light source that provides of the utility model is from openend to the upward view on top.
Embodiment
The technical matters solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the AOI light source that the utility model provides.Shown in figure 1, this AOI light source, comprise non-coaxial light source 10 and coaxial light source 20, described coaxial light source 20 is arranged between described non-coaxial light source 10 and camera, described coaxial light source 20 is provided with the first through hole 200 along camera 30 shooting direction X, described non-coaxial light source 10 is provided with the second through hole 100, second through hole 100 along camera 30 shooting direction X and is greater than the first through hole 200 and arranges with the first through hole 200 is concentric.
Non-coaxial light source 10 in this AOI light source sends non-coaxial light, can shoot the diffuse reflection such as tin cream, components and parts object truly; Coaxial light source 20 sends axis light, and because coaxial light source 20 is diffuse reflection light sources, the light sent does not have directive property and brightness is lower, can make the clear picture shooting the mirror-reflection objects such as Copper Foil and high intensity object of camera 30.When detecting, examined object 40 is positioned in shooting effective coverage 50, the light that coaxial light source 20 sends is irradiated in examined object 40 by the second through hole 100, by non-coaxial light source 10 and coaxial light source 20 with the use of, camera 30 can shoot the examined object 40 with diffuse reflection, mirror-reflection or high brightness feature truly through the first through hole 200 and the second through hole 100, make testing result more reliable, improve the yield of the product that dispatches from the factory.
Fig. 2 is the schematic cross-section along direction of taking pictures of the coaxial light source that the utility model provides.Shown in composition graphs 2, in the present embodiment, coaxial light source 20 comprises the shadow shield 201, light-conductive media 202 and the even tabula rasa 203 that are cascading, and the top of the contiguous non-coaxial light source 10 of this even tabula rasa 203, the sidewall of light-conductive media 202 is pasted with the first LED light source 204.Shadow shield 201, light-conductive media 202 and even tabula rasa 203 all offer the first through hole 200.Shadow shield 201 prevent light directly enter camera 30 impact take pictures, even tabula rasa 203 is irradiated on circuit board with can making uniform light.In addition, in order to improve light extraction efficiency further, described shadow shield 201 can be preferably reflector.
Fig. 3 is the vertical view of the coaxial light source that provides of the utility model along direction of taking pictures.Shown in composition graphs 3, in the present embodiment, coaxial light source 20 is projected as square along camera 30 shooting direction X's, and the first LED light source 204 is arranged on four sidewalls of light-conductive media 202 respectively, and light emission direction is towards described sidewall.Light-conductive media 202 makes distribution of light more even, is conducive to the effect of taking pictures promoting camera 30.Certainly, in some other embodiment, the first LED light source 204 also can only be arranged in an opposing sidewalls of light-conductive media 202, and the projection of shape of coaxial light source 20 also can be circular, rectangle or other shapes, herein only as individual instances, conduct is not to restriction of the present utility model.
Particularly, in the present embodiment, the first LED light source 204 comprises red LED lamp, green LED lamp and blue led lamp, and described red LED lamp, green LED lamp and blue led lamp interval arrange (not shown).Because defect in different color light can be highlighted, such as in red light, examined object 40 surface imperfection is more clear, in bright sodium yellow, examined object 40 deep zone defect is more clear, in dark blue coloured light, examined object 40 heterochromia is more clear, therefore utilize RDB tri-coloured light combination principle to coordinate by three kinds of LED of the first LED light source 204 to form multiple coloured light, judge number of drawbacks when examined object 40 does not move.
Fig. 4 is that the non-coaxial light source that provides of the utility model is from openend to the upward view on top.Shown in composition graphs 1, Fig. 4, non-coaxial light source 10 comprises lampshade 101 and the second LED light source 102, this lampshade 101 is projected as circle along camera shooting direction X, tangent plane along camera shooting direction X is parabola shaped, second LED light source 102 comprises red LED light source ring 1020, green LED light source ring 1021 and blue led light source ring 1022, and red LED light source ring 1020, green LED light source ring 1021 and blue led light source ring 1022 are arranged from the top of lampshade 101 successively to openend.Because defect in different color light can be highlighted, such as in red light, examined object 40 surface imperfection is more clear, in bright sodium yellow, examined object 40 deep zone defect is more clear, in dark blue coloured light, examined object 40 heterochromia is more clear, therefore utilize RDB tri-coloured light combination principle to coordinate by three kinds of LED of the second LED light source 102 to form multiple coloured light, judge number of drawbacks when examined object 40 does not move.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (6)
1. an AOI light source, it is characterized in that, comprise non-coaxial light source and coaxial light source, described coaxial light source is arranged between described non-coaxial light source and camera, described coaxial light source is provided with the first through hole along camera shooting direction, described non-coaxial light source is provided with the second through hole along camera shooting direction, and described second through hole is greater than the first through hole and arranges with the first through hole is concentric.
2. AOI light source according to claim 1, it is characterized in that, described coaxial light source comprises the shadow shield, light-conductive media and the even tabula rasa that are cascading, and the top of the contiguous described non-coaxial light source of described even tabula rasa, the sidewall of described light-conductive media is pasted with the first LED light source.
3. AOI light source according to claim 2, is characterized in that, described first LED light source comprises red LED lamp, green LED lamp and blue led lamp, and described red LED lamp, green LED lamp and blue led lamp interval are arranged.
4. AOI light source according to claim 3, is characterized in that, described coaxial light source is projected as square along camera shooting direction, and described first LED light source is arranged on four sidewalls of described light-conductive media respectively, and light emission direction is towards described sidewall.
5. AOI light source according to claim 1, it is characterized in that, described non-coaxial light source comprises lampshade and the second LED light source, described lampshade is projected as circle along camera shooting direction, cross section along camera shooting direction is parabola shaped, and described second LED light source comprises red LED light source ring, green LED light source ring and blue led light source ring.
6. AOI light source according to claim 5, is characterized in that, described red LED light source ring, green LED light source ring and blue led light source ring are arranged from the top of described lampshade successively to openend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620358.4U CN204924968U (en) | 2015-08-17 | 2015-08-17 | AOI light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620358.4U CN204924968U (en) | 2015-08-17 | 2015-08-17 | AOI light source |
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| CN204924968U true CN204924968U (en) | 2015-12-30 |
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| CN201520620358.4U Active CN204924968U (en) | 2015-08-17 | 2015-08-17 | AOI light source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044118A (en) * | 2015-08-17 | 2015-11-11 | 东莞市神州视觉科技有限公司 | AOI light source |
| CN107187212A (en) * | 2017-06-28 | 2017-09-22 | 浙江华丽达包装有限公司 | Point horizontal and vertical parity check code security printing |
| CN109632812A (en) * | 2019-01-11 | 2019-04-16 | 英特尔产品（成都）有限公司 | Light irradiation apparatus for object inspection |
-
2015
- 2015-08-17 CN CN201520620358.4U patent/CN204924968U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044118A (en) * | 2015-08-17 | 2015-11-11 | 东莞市神州视觉科技有限公司 | AOI light source |
| CN105044118B (en) * | 2015-08-17 | 2018-01-02 | 东莞市神州视觉科技有限公司 | A kind of AOI light sources |
| CN107187212A (en) * | 2017-06-28 | 2017-09-22 | 浙江华丽达包装有限公司 | Point horizontal and vertical parity check code security printing |
| CN109632812A (en) * | 2019-01-11 | 2019-04-16 | 英特尔产品（成都）有限公司 | Light irradiation apparatus for object inspection |
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