CN205562413U - A optical detection device for product defects detects - Google Patents
A optical detection device for product defects detects Download PDFInfo
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- CN205562413U CN205562413U CN201620257158.1U CN201620257158U CN205562413U CN 205562413 U CN205562413 U CN 205562413U CN 201620257158 U CN201620257158 U CN 201620257158U CN 205562413 U CN205562413 U CN 205562413U
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Abstract
The utility model discloses an optical detection device for product defects detects. An optical detection device for product defects detects, includes two at least linear array cameras, it arranges the one side that is used for the conveying to be examined the transport mechanism of product in, wherein the line sensor angular separation of two linear array cameras is 85~95, just line sensor direction with contained angle between transport mechanism's the direction of motion is 40~50, this optical detection device is particularly useful for having the product mar defect detecting of directionality, need not to be examined all mar defects that once can accurately detect on the product again with examining the product rotation, has accelerated detection speed effectively, has promoted detection efficiency.
Description
Technical field
The utility model relates to a kind of optical detection apparatus for product defects detection.
Background technology
Flat-panel electronic product (includes smart mobile phone, panel computer, intelligence wearable electronic product etc.)
Having increasingly becomed best-selling product, in process of production, various reasons can cause defect to these products
Produce and exist.Major defect includes the cut of touch-screen, fingerprint, spot, breakage, foreign matter etc..
In order to save visual inspection manpower and improve efficiency, manufacturer can use automatic optical detection equipment.Product exists
Move on production line, when inductor detect product through out-of-date, software can trigger respective camera and adopt
Collection image, and send an image to computer and carry out image procossing, complete defects detection at the volley.
The most modal defect is cut.S is the narrowest and elongated for cut, has certain side
Tropism, as shown in Figure 1.So typically requiring when detecting this kind of defect, product is rotated once, more
Once, this can increase the detection time in detection, reduces efficiency.
Fast in order to improve detection speed, reduce error rate, especially more demonstrate production when a large amount of production
Efficiency, detection equipment needs have higher stability, repeatable and higher precision.
Utility model content
Main purpose of the present utility model is to overcome the deficiencies in the prior art, it is provided that a kind of for product
The optical detection apparatus of defects detection, while improving scratch defects detection precision, can reduce inspection
The survey time, improve detection efficiency.
For achieving the above object, the utility model is by the following technical solutions:
A kind of optical detection apparatus for product defects detection, including:
At least two linear array (line sensor) camera, it is placed in the conveyer for transmitting examined product
The side of structure；
The line sensor angular separation of two of which line-scan digital camera is 85 °～95 °, and described line sensor
Angle between the direction of motion of direction and described connecting gear is 40 °～50 °.
Further,
Described line-scan digital camera is placed in the upside of described connecting gear.
The line sensor direction of said two line-scan digital camera is mutually perpendicular to.
Angle between described line sensor direction and the direction of motion of described connecting gear is 45 °.
Described optical detection apparatus also includes:
Said two line-scan digital camera is each equipped with two line sources, and the light of described line source injection with
Angle between the optical axis of described line-scan digital camera is 10 °～15 °.
It is adjustable that described line source is arranged to lighting angle.
Further, the most each described line source includes:
One illuminator；
One cylindrical lens (Cylinder lens) and an aspherical cylindrical lens (Aspherical
Cylinder lens), the light being successively set on described illuminator sends on path；
Two speculums, before it is positioned at described aspherical cylindrical lens, the angle of said two speculum
It is configured so that the light beam sent from described aspherical cylindrical lens is gathered into a Line beam.
Further, described illuminator is LED light source array.
The beneficial effects of the utility model:
Optical detection apparatus of the present utility model is particularly suited for having the inspection of directive product scratch defects
Survey, can accurately check the scratch defects in various directions on examined product, it is not necessary to entered by examined product
Row rotates, ensures by the way of many inspections once the precision of testing result, the most effectively accelerates
Detection speed, improves detection efficiency.
Accompanying drawing explanation
Fig. 1 shows the various cuts on glass screen.
Fig. 2 A is line-scan digital camera group structural representation (top view) of the utility model embodiment.
Fig. 2 B is line-scan digital camera group and the outer lines light-source structure schematic diagram of the utility model embodiment.
Fig. 3 A shows traditional wire light-source structure.
Fig. 3 B shows the line source structure of the utility model embodiment.
Detailed description of the invention
Hereinafter embodiment of the present utility model is elaborated.It is emphasized that the description below
That be merely exemplary rather than in order to limit scope of the present utility model and application thereof.
Refering to Fig. 2 A and Fig. 2 B, in one embodiment, optical detection apparatus includes being positioned at conveyer
Two line-scan digital cameras 11,33 of the side of structure (not shown), each line-scan digital camera is equipped with two outsides
Line source, referred to as one line-scan digital camera group.Line-scan digital camera 11 bilateral symmetry ground or asymmetricly pacify
Fill the outer lines light source 1,2 of two adjustable angle, the bilateral symmetry ground or asymmetric of line-scan digital camera 33
The outer lines light source 3,4 of two adjustable angle is installed on ground.The line of two of which line-scan digital camera 11,33
Sensor (identifying a line sensor 110 in Fig. 2 A) angular separation is 85 °～95 °, and line passes
Angle between direction of motion A of sensor direction and described connecting gear is 40 °～50 °.
In a preferred embodiment, the angle between light and the line-scan digital camera optical axis of line source injection is big
Cause is 10 °～15 °.
In a preferred embodiment, two line-scan digital camera groups are positioned at the upside (i.e. top) of connecting gear.
In a preferred embodiment, two line-scan digital camera group Relative vertical are placed, i.e. two line sensors
Direction is mutually perpendicular to.The direction of the line sensor in line-scan digital camera dotted line as shown in Figure 2 A.And
The direction of line sensor becomes about 45 ° with the direction of motion of connecting gear.
Connecting gear each camera during transmitting product can adopt figure in turn.By being mutually perpendicular to peace
The two groups of line-scan digital camera groups put, go for having the detection of directive scratch defects, it is not necessary to will be by
Inspection product rotates to be examined once again, improves detection speed, increases efficiency.
In a kind of preferred embodiment, the outer lines light source that the utility model uses and traditional wire light source
Different.Fig. 3 A shows and includes LED light source 41 and the traditional wire of rod-shaped lens (rod lens) 5
Light-source structure.The light dispersion of distribution that this traditional wire light source is radiated on object is about about 10mm.
Fig. 3 B shows the line source structure of the utility model preferred embodiment, and it includes LED light source array
6, cylindrical lens (Cylinder lens) 7 and aspherical cylindrical lens (Aspherical Cylinder lens)
8 and two speculums 91,92, the light-ray condensing of collection is become a line by two speculums 91,92
Light beam, thus form a line source.The light dispersion of distribution that this line source is radiated on object is little to greatly
About about 3mm.
Such linear light source design structure has higher optical density, improves light efficiency, contributes to reducing
Time for exposure, accelerate detection speed.
Above content be combine concrete/preferred embodiment the utility model is made the most in detail
Describe in detail bright, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this practicality
For novel person of an ordinary skill in the technical field, in the premise conceived without departing from the utility model
Under, these embodiments having described that can also be made some replacements or modification by it, and these substitute
Or variant all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. the optical detection apparatus for product defects detection, it is characterised in that including:
At least two line-scan digital camera, it is placed in the side of the connecting gear for transmitting examined product；
The line sensor angular separation of two of which line-scan digital camera be the angle between 85 °～95 °, and described line sensor direction and the direction of motion of described connecting gear be 40 °～50 °.
Optical detection apparatus the most according to claim 1, it is characterised in that described line-scan digital camera is placed in the upside of described connecting gear.
Optical detection apparatus the most according to claim 1, it is characterised in that the line sensor direction of said two line-scan digital camera is mutually perpendicular to.
Optical detection apparatus the most according to claim 3, it is characterised in that the angle between described line sensor direction and the direction of motion of described connecting gear is 45 °.
Optical detection apparatus the most according to claim 1, it is characterised in that the angle that said two line-scan digital camera is each equipped with between two line sources, and light and the optical axis of described line-scan digital camera of described line source injection is 10 °～15 °.
Optical detection apparatus the most according to claim 5, it is characterised in that it is adjustable that described line source is arranged to lighting angle.
7. according to the optical detection apparatus described in any one of claim 5 to 6, it is characterised in that each described line source includes:
One illuminator；
One cylindrical lens and an aspherical cylindrical lens, the light being successively set on described illuminator sends on path；
Two speculums, before it is positioned at described aspherical cylindrical lens, the angle of said two speculum is configured so that the light beam sent from described aspherical cylindrical lens is gathered into a Line beam.
Optical detection apparatus the most according to claim 7, it is characterised in that described illuminator is LED light source array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620257158.1U CN205562413U (en) | 2016-03-30 | 2016-03-30 | A optical detection device for product defects detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620257158.1U CN205562413U (en) | 2016-03-30 | 2016-03-30 | A optical detection device for product defects detects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562413U true CN205562413U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620257158.1U Active CN205562413U (en) | 2016-03-30 | 2016-03-30 | A optical detection device for product defects detects |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210576A1 (en) * | 2018-05-03 | 2019-11-07 | 深圳精创视觉科技有限公司 | Automatic detection apparatus for glass internal stress defects |
-
2016
- 2016-03-30 CN CN201620257158.1U patent/CN205562413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210576A1 (en) * | 2018-05-03 | 2019-11-07 | 深圳精创视觉科技有限公司 | Automatic detection apparatus for glass internal stress defects |
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| GR01 | Patent grant |