CN2793722Y - Imager - Google Patents
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- CN2793722Y CN2793722Y CN 200520019323 CN200520019323U CN2793722Y CN 2793722 Y CN2793722 Y CN 2793722Y CN 200520019323 CN200520019323 CN 200520019323 CN 200520019323 U CN200520019323 U CN 200520019323U CN 2793722 Y CN2793722 Y CN 2793722Y
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- Prior art keywords
- light
- emitting component
- image
- determinand
- image morphology
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Abstract
The utility model relates to an image appearance device used for viewing the image appearance of the surface of an object to be measured, which comprises a light source module and more than one image picking up module for picking up the image appearance. The light source module comprises more than one base plate, a plurality of luminous components parallel to the base plate and a light concentrating device which is arranged between the luminous components and the object to be measured and enables parallel rays generated by the luminous components to concentrate on the object to be measured. The parallel rays generated by the luminous components can project and focuses on a measuring zone by using the light concentrating device; the utility model not only can adjust a light source, but also has the advantages of simple construction and low cost.
Description
[technical field]
The utility model relates to a kind of image morphology device, particularly relates to a kind of with low cost, simple structure, and the image morphology device of adjustable light source.
[background technology]
Indispensable technology in the manufacture process of automatic optical detecting system by printed circuit board (PCB) or other determinand.In the flow process that install on the robotization surface, whether automatic optical detecting system after electronic component is being adorned and welded two steps, is used for the detected electrons part and is adorning correct mostly.General automatic optical detecting system comprises is located at the relative top of printed circuit board (PCB), and the conveying device that described image morphology device is moved to image morphology device, of each zone picked-up image of printed circuit board (PCB) relative to printed circuit board (PCB), and one be used to control described conveying device, and the described image morphology device of receiving and analyzing read the computer controller of image.Described image morphology device comprises a light source module and an image acquisition module, and the two cooperatively interacts to obtain the image morphology of printed circuit board (PCB) or other determinand.Described computer controller by the described image morphology device of scanning read image, to verify whether a specific region produces a desired effect on the printed circuit board (PCB).
With printed circuit board (PCB), it detects the pad that content focuses on electronic component edge, circuit board arrangement and electronic component.Therefore, have only and illuminate printed circuit board (PCB) with special angle and could be totally these be detected contents and catch simultaneously to an image.For instance, if bright of a certain electronic component can be with the irradiation reflection from described image acquisition module, make described image acquisition module can't receive the reflected light of described electronic component, then read to such an extent that the relative position of image will only a black region can occur, and described computer controller can't be verified at described image morphology device.
So, in order to make whole automatic testing process reach certain appreciation ability, at printed circuit board (PCB) one specific region, described light source module usually need be to printed circuit board (PCB) with different irradiation angles, or different combination of angles irradiations is to obtain complete image information.
As Fig. 1 and shown in Figure 2, be the disclosed a kind of image morphology device 1 of world patent publication number WO 02/01210 A1.Past moves by an X-Y translation stage in order to the image morphology device 1 that automated optical detects, and comprises one in order to the image acquisition module 2 of light source module 3 and in order to read image morphology to the determinand irradiation.Described light source module 3 comprises a base portion 31, and a plurality of light-emitting components 32 of being located at described base portion 31.Described base portion 31 has one and is positioned at a surveyed area 33 top relatively, and the receipts light district 311 that supplies described image acquisition module 2 to be provided with.Described light-emitting component 32 is the have splendid luminous directive property light emitting diode of (Beam Radiation Pattern), and the main luminous sensing of described light-emitting component 32 all is to point to described surveyed area 33.In addition, compared to the light-emitting component 32 of being located at contiguous described surveyed area 33, be located at away from the dispersion angle of the luminous directive property of the light-emitting component 32 of described surveyed area 33 less, so that the irradiation that the light-emitting component 32 of each diverse location provides zone range size unanimity, and the irradiation intensity equalization that provides.So, described light source module 3 can provide different irradiation angles to described surveyed area 33, or different combination of angles irradiations is to obtain complete image information.
Yet described light source module 3 must utilize the substrate 31 of a surperficial indentation just can reach the purpose that described light-emitting component 32 all points to described surveyed area 33.In the making flow process of described substrate 31, need on the material of making printed circuit board (PCB), to draw earlier the zigzag lines, the precision machined mode of cooperative mechanical again, wash out the zigzag conduit that is provided with for described light-emitting component 32 along described lines, just a plurality of conduits of making are combined into described substrate 31 at last.It makes not only very complicated of flow process, and is different from the production method of general printed circuit board (PCB), must cooperate extra mechanical facility to reach.Make the cost of described light source module 3 higher relatively, Production Time is longer, and is and more nonelastic in the change of structural arrangements.
[utility model content]
The purpose of this utility model is to provide a kind of image morphology device, and it can be adjusted light source, and has simple structure, advantage with low cost.
In order to achieve the above object, a kind of image morphology device of the present utility model is used to inspect the image morphology on a determinand surface, and described image morphology device comprises a light source module and at least one image acquisition module, it is characterized in that:
Described light source module comprises at least one substrate, a plurality of light-emitting component that is parallel to described substrate, and a beam condensing unit between described light-emitting component and described determinand.
Described image morphology device is characterized in that: described beam condensing unit is a Fresnel lens.
Described image morphology device is characterized in that: described beam condensing unit is a lens combination.
Described image morphology device is characterized in that: each light-emitting component has a glow color, and described light-emitting component can produce multiple glow color altogether, and arranges according to the glow color of each light-emitting component
Described image morphology device is characterized in that: described light source module comprises a plurality of with respect to the different angle degree of the described determinand substrate in the face of described determinand, and each substrate is provided with a plurality of light-emitting components.
Described image morphology device is characterized in that: each light-emitting component has a glow color, and the light-emitting component of being located at same substrate has same glow color, and the light-emitting component of being located at different substrate then has different glow colors.
Described image morphology device is characterized in that: also comprise a plurality of respectively with different angle degree with respect to described determinand, in the face of the image acquisition module of described determinand.
Described image morphology device is characterized in that: described light-emitting component is a light emitting diode.
Described image morphology device is characterized in that: described substrate is a printed circuit board (PCB).
In sum, image morphology device of the present utility model mainly comprises: a light source module and at least one image acquisition module that is used for the pick-up image pattern; Described light source module comprises at least one substrate, a plurality of light-emitting component that is parallel to described substrate, reach one between described light-emitting component and described determinand, use so that the parallel rays that described light-emitting component sends comes together in the Fresnel lens of described determinand.Utilize said elements, this image morphology device not only can be adjusted light source, also has simple structure, advantage with low cost simultaneously.
[description of drawings]
Below in conjunction with drawings and Examples the utility model storage shelf is elaborated:
Fig. 1 is the three-dimensional combination figure of past image morphology device;
Fig. 2 is the existing illumination arrangement figure that is used for the image morphology device;
Fig. 3 is the side-looking cut away view of the utility model image morphology device first preferred embodiment;
Fig. 4 is the illumination arrangement figure of described first preferred embodiment;
Fig. 5 is the illumination arrangement figure of the utility model image morphology device second preferred embodiment;
Fig. 6 is the relevant position synoptic diagram of described second preferred embodiment, one image acquisition module and a plurality of light source modules; And
Fig. 7 is the relevant position synoptic diagram of the utility model image morphology device the 3rd preferred embodiment three image acquisition modules and a plurality of light source modules;
Fig. 8 is the side-looking cut away view of the utility model image morphology device the 4th preferred embodiment.
[embodiment]
For convenience of description, following embodiment, components identical is represented with same numeral.
As shown in Figure 3, first preferred embodiment of the utility model image morphology device is used to inspect determinand 8 surfaces with two-dimentional shape characteristic, and described determinand 8 surfaces also uprightly are provided with respect to a baseline X.For example, described determinand 8 can be a printed circuit board (PCB) (PCB), and has a plurality of electronic components 81 of being located at described determinand 8 surfaces.Described electronic component 81 can be electric capacity, resistance or integrated circuit.Described first preferred embodiment then comprises a mobile module 4, a main control module 5, a light source module 6, and an image acquisition module 7.
Described mobile module 4 is used to make described main control module 5, light source module 6, and described image acquisition module 7 is with described relatively determinand 8 translations of a level altitude, described translation module 4 also comprises one in order to move described main control module 5, light source module 6, and the translation stage 41 of described image acquisition module 7, and the conveying microscope carrier 42 of the described determinand 8 of a conveying.In this preferred embodiment, described light source module 6 to the distance of described conveying microscope carrier 42 is about 20 to 30 centimetres.
Described light source module 6 comprises one along described baseline directions X and described determinand 8 opposing substrates 61, a plurality of light-emitting component 62 that is parallel to described substrate 61, reach one between described light-emitting component 62 and described determinand 8, use so that the parallel rays that described light-emitting component 62 sends comes together in the beam condensing unit 63 of described determinand 8.Described substrate 61 is one to be provided with the printed circuit board (PCB) of a perforation 611 in this first preferred embodiment.Each light-emitting component 62 is located at the light emitting diode of described substrate 61 for vertical cutting always in this first preferred embodiment.Because at present general light emitting diode all has splendid luminous directive property, therefore the equal summary of main light that is sent by described light-emitting component 62 is perpendicular to described substrate 61.
As shown in Figure 3 and Figure 4, each light-emitting component 62 has a glow color, and described light-emitting component is the light-emitting component 62 by the light-emitting component 62 ' of sending out first coloured light, second coloured light ", reach light-emitting component 62 that send out the 3rd coloured light and form, to produce multiple glow color.Send out the described light-emitting component 62 ', 62 of different color light ", 62 , and be that center ring is located at described substrate 61 with described substrate 61 geometric centers respectively.In this preferable enforcement, described first, second, and described the 3rd coloured light is respectively red, green, blue, the three is mutual mix after, can produce full-color projection light.
Described beam condensing unit 63 is a Fresnel lens in this preferable enforcement, and comprises that a resin sheet 631 and is located at the Fresnel figure line 632 of described resin sheet.According to diffraction theory, described Fresnel figure line 632 can make the deflection of light bending of passing, and produces the diffraction phenomenon.The characteristics of Fresnel lens are than general condenser lens penetrability height, and are in light weight, and irradiated area is big, so be used for searchlight in the past to replace condenser lens more.Fresnel lens then is used in the household electrical appliances projection field mostly at present, utilizes Fresnel lens to converge projection ray, and makes projection ray focus to screen to produce the characteristic of projection, increases penetrating and diffusion of projection ray.Beam condensing unit 63 in this preferred embodiment promptly is to use the characteristic of Fresnel lens, makes the parallel rays projection of being sent from described light-emitting component 62 and focuses on a detection zone 64.So, can get rid of the puzzlement that must plug described light-emitting component 62 at present with different angles.
Described image acquisition module 7 is a colour camera of being produced by CIS Corp. in this preferred embodiment.Described image acquisition module 7 is resent to described main control module 5 to analyze or to store institute's picked image after borrowing an image control circuit to be converted to the colour video information signal (NTSC) of standard picked image.
Described main control module 5 in this preferred embodiment be one respectively with described translation stage 41, light source module 6, and the microprocessor that is electrically connected of described image acquisition module 7.Described main control module 5 is used to control the start of described translation stage 41 and described light-emitting component 62, making described light source module 6 make two dimension with a fixed range relative to described determinand 8 moves, and by the start of controlling described light-emitting component 62, make described light source module 6 send described first, second, third coloured light, or the mixing of these coloured light.Simultaneously, described main control module 5 also is used for storing and analyzing 7 picked image information of described image acquisition module.Yet on reality is used, described main control module 5 also can only be used to control the start of described translation stage 41 and described light-emitting component 62, and 7 picked image information of described image acquisition module are transferred to the microprocessor that other is used to analyze or store 7 picked image information of described image acquisition module.
To detect printed circuit board (PCB) is example, and the mode of analyzing image can be 7 picked image of the described image acquisition module of comparison, and a setup parameter that is stored in position of components on the standard printed circuit board of described main control module 5 in advance.When described light source module 6 illuminates described determinand 8 with monochromatic projection light, described main control module 5 can detect described determinand 8 and whether have the dislocation or the electronic component 81 of failure welding, and whether the electronic component 81 that also can detect described determinand 8 is lost or be misplaced.When described light source module 6 illuminated described determinand 8 with the different colours projection light repeatedly, described main control module 5 can further obtain the information of described determinand 8 relevant colors.
As Fig. 5 and shown in Figure 6, second preferred embodiment of the utility model image morphology device, similar with described first preferred embodiment, also be to be used to inspect determinand 8 surfaces with two-dimentional shape characteristic.And difference be in, described light source module 6 comprises a plurality of substrates 61, a plurality of light-emitting component 62 that is parallel to described substrate 61 respectively, and the corresponding described substrate 61 of a plurality of difference, and the beam condensing unit 63 between described light-emitting component 62 and described determinand 8.Described light-emitting component 62 also can be divided into and send out first, second, third, and the light-emitting component 62 ', 62 of mixed-color light ", 62 , 62 " ", and 61 of described substrates are provided with a light-emitting component 62 of sending out with a shade.
In addition, described substrate 61 is faced described determinand 8 with the different angle degree with respect to described baseline directions X respectively, and therefore, this preferred embodiment also has angle and the different irradiation color that provides different, but or the ability of same irradiation color different angles combination.
As shown in Figure 7, the 3rd preferred embodiment of the utility model image morphology device, similar with described second preferred embodiment, and difference be in, this preferred embodiment also comprises two respectively with the different angle degree with respect to described baseline directions X, in the face of the image acquisition module 7 ', 7 of described determinand 8 ".Image acquisition module 7,7 ', 7 by a plurality of different angle degree ", with image to the different watching angles of described determinand 8 picked-ups.In the analytic process of described main control module 5, can judge the height of each electronic component 81 (see figure 3) simultaneously by a plurality of images with different watching angles.Because electronic component can produce many errors in welding process, can't be from overlooking or detection is made in single side-looking, as set up a monument (Tombstom) element end perk and empty weldering; When and for example decreasing breach on part (Damaged Part) element or thickness and surpassing certain proportion, these all must see through highly judgement as discriminating element whether on appropriate position; Increase the width of cloth number of capture, provide more information parts to judge for detecting, erroneous judgement part rate just can reduce.
In addition, because the light emitting diode that is easy to obtain on the market at present has the reaction rate of about 50 microseconds, but the monochrome or the colour camera that are easy to obtain only have about 1/30 second reaction rate, just the standard specification of NTSC: about 30 times of per second frame update.In other words, even if described light source module 6 can provide the irradiation combination of different angles in 1/30 second and different colours, described monochrome or colour camera also can only capture a monochrome or chromatic image in 1/30 second.
Therefore be subject to described image acquisition module 7,7 ', 7 for solving above-mentioned detection speed " problem, in this preferred embodiment, also can separate described image acquisition module 7,7 ', 7 by described main control module 5 " opportunity of acquisition monochrome or chromatic image.For example, the described main control module 5 described light source module 6 of operation earlier illuminates described determinand 8 with an angle and a shade, and indicate described image acquisition module 7 to capture one first monochrome or chromatic image, at interval after 50 microseconds, operate described light source module 6 again and illuminate described determinand 8 with another angle and another coloured light, and indicate described image acquisition module 7 to capture one second monochrome or chromatic image, at interval after 50 microseconds, operate described light source module 6 and illuminate described determinand 8 with another angle and another coloured light, and indicate described image acquisition module 7 to capture one the 3rd monochrome or chromatic image, after 1/30 second, operate the speed that detects to accelerate in regular turn with same circulation more at interval.
Certainly,, increase the quantity of described image acquisition module 7, can increase the watching angle and the speed of detection just as being familiar with described the simple association that skill person did.So described image acquisition module 7,7 ', 7 " be this preferred embodiment only, the quantity on actual the use should be as limit.
As shown in Figure 8, the 4th preferred embodiment of the utility model image morphology device, similar with described first preferred embodiment, also be to be used to inspect determinand 8 surfaces with two-dimentional shape characteristic.And difference to be in, described beam condensing unit 63 be a lens combination in this preferable enforcement, its composition material can be optical plastic or glass.Described beam condensing unit 63 can make the parallel rays that is sent from described light-emitting component 62 equally, throws and focus on this detection zone 64.In addition, can understand just as knowing this skill person,, can adjust the range size of this detection zone 64 by changing the optical element of described beam condensing unit 63, and described beam condensing unit 63 can additionally provide suitable imaging calibration, to get rid of the problem of projection light brightness disproportionation.
The utility model image morphology device utilizes the characteristic of described beam condensing unit 63, makes the parallel rays projection of being sent from described light-emitting component 62 and focuses on described detection zone 64.So not only whole composition member is more simplified, and can reach the effect that is equal to existing apparatus.Therefore, can reach the purpose of this utility model really.
Claims (9)
1. image morphology device is used to inspect the image morphology on a determinand surface, and described image morphology device comprises a light source module and at least one image acquisition module, it is characterized in that:
Described light source module comprises at least one substrate, a plurality of light-emitting component that is parallel to described substrate, and a beam condensing unit between described light-emitting component and described determinand.
2. image morphology device as claimed in claim 1 is characterized in that: described beam condensing unit is a Fresnel lens.
3. image morphology device as claimed in claim 1 is characterized in that: described beam condensing unit is a lens combination.
4. image morphology device as claimed in claim 1 is characterized in that: each light-emitting component has a glow color, and the living multiple glow color of described light-emitting component common property, and arranges according to the glow color of each light-emitting component.
5. image morphology device as claimed in claim 1 is characterized in that: described light source module comprises a plurality of with respect to the different angle degree of the described determinand substrate in the face of described determinand, and each substrate is provided with a plurality of light-emitting components.
6. image morphology device as claimed in claim 5 is characterized in that: each light-emitting component has a glow color, and the light-emitting component of being located at same substrate has same glow color, and the light-emitting component of being located at different substrate then has different glow colors.
7. image morphology device as claimed in claim 1 is characterized in that: also comprise a plurality of respectively with different angle degree with respect to described determinand, in the face of the image acquisition module of described determinand.
8. image morphology device as claimed in claim 1 is characterized in that: described light-emitting component is a light emitting diode.
9. image morphology device as claimed in claim 1 is characterized in that: described substrate is a printed circuit board (PCB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019323 CN2793722Y (en) | 2005-05-09 | 2005-05-09 | Imager |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019323 CN2793722Y (en) | 2005-05-09 | 2005-05-09 | Imager |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793722Y true CN2793722Y (en) | 2006-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520019323 Expired - Fee Related CN2793722Y (en) | 2005-05-09 | 2005-05-09 | Imager |
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| CN (1) | CN2793722Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140154A (en) * | 2015-06-12 | 2015-12-09 | 深圳市晶导电子有限公司 | Annular light source for die bonders and die bonder |
| CN106353317A (en) * | 2015-07-13 | 2017-01-25 | 德律科技股份有限公司 | Inspecting device and method for inspecting inspection target |
-
2005
- 2005-05-09 CN CN 200520019323 patent/CN2793722Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140154A (en) * | 2015-06-12 | 2015-12-09 | 深圳市晶导电子有限公司 | Annular light source for die bonders and die bonder |
| CN105140154B (en) * | 2015-06-12 | 2018-12-11 | 深圳市晶导电子有限公司 | The annular light source and die Bonder of die Bonder |
| CN106353317A (en) * | 2015-07-13 | 2017-01-25 | 德律科技股份有限公司 | Inspecting device and method for inspecting inspection target |
| CN106353317B (en) * | 2015-07-13 | 2019-10-11 | 德律科技股份有限公司 | Detect the detection device and method of target to be measured |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060705 Termination date: 20110509 |