CN109975311A - A kind of multi-environment AOI detection device of cycle type and method - Google Patents
A kind of multi-environment AOI detection device of cycle type and method Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 178
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- 230000007547 defect Effects 0.000 claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims description 33
- 239000000428 dust Substances 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 238000009738 saturating Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 125000003367 polycyclic group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/88—Investigating the presence of flaws or contamination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
- G01N2021/945—Liquid or solid deposits of macroscopic size on surfaces, e.g. drops, films, or clustered contaminants
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Abstract
A kind of multi-environment AOI detection device of cycle type and method, the device includes multiple screen detection stations, detect light source, screen mobile device, image collecting device and data processing equipment, each screen detection station, which is configured, detects environment with the difference for being adapted to detect specific screen defect type, tested screen synch is moved to each screen detection station by screen mobile device, image collecting device carries out full work station Image Acquisition in respectively current screen detection station to tested screen, so that each image includes the multiple images region for respectively corresponding different screen detection station, it is every carried out an Image Acquisition after, tested screen is moved to respective next screen detection station by screen mobile device, the next round that image collecting device re-starts detects the Image Acquisition under environment more, until tested screen traverses different inspections Survey the detection of environment.The present invention substantially increases image acquisition areas utilization rate, and reduces the requirement to image capture environment.
Description
Technical field
The present invention relates to optical detective technologies, examine more particularly to the multi-environment automatic optics inspection of a kind of cycle type (AOI)
Survey device and method.
Background technique
One camera multistation mobile phone screen detection device is that the image capture environment of multiple stations is integrated into single image
Acquisition platform.Compared with polyphaser screen detection device, it has the following advantages: reducing camera quantity, it is possible to reduce equipment event
Barrier rate correspondinglys increase the robustness of integral device；The interactive process between camera is eliminated, whole testing process is reduced.
The disadvantage is that under bar shaped light environment, needing longer light due to needing to keep the image capture environment of each station identical
Source, moreover, the pressure as needed for each station is identical under press mold sealing state, so needing stronger leakproofness.Therefore,
Existing one camera multistation mobile phone screen detection device is more demanding to light source and press mold sealing effect, space utilization rate compared with
It is low.
Summary of the invention
It is a primary object of the present invention to overcome the deficiencies of the prior art and provide a kind of multi-environment AOI detection dress of cycle type
It sets and method, to solve under one camera multistation environment, image acquisition areas utilization rate is low and requires image capture environment high-leveled and difficult
To stablize the problem of realizing.
To achieve the above object, the invention adopts the following technical scheme:
A kind of multi-environment AOI detection device of cycle type, including multiple screen detection stations, detection light source, the mobile dress of screen
It sets, image collecting device and data processing equipment, wherein each screen detection station is configured and has that be adapted to detection specific
The different detection environment of screen defect type, the screen mobile device are used to muti-piece being moved to difference with being tested screen synch
Screen detection station, the detection light source, which is used to provide, carries out the required illumination item of screen detection under environment in corresponding detect
Part, described image acquisition device, which is used to be tested the muti-piece screen, carries out full work station figure in respectively current screen detection station
As acquisition, so that each image includes the multiple images area for respectively corresponding the different screen detection station under different detection environment
Domain, each image-region are used for the detection of different defect types, and described image acquisition device and the data processing equipment carry out
Data transmission, the data processing equipment handle acquired image, correspond to different detections for described image
The image-region of environment, detecting corresponding tested screen whether there is related defects, wherein it is every carried out an Image Acquisition it
Afterwards, the muti-piece is tested screen and is moved to respective next screen detection station by the screen mobile device, and described image is adopted
The next round that acquisition means re-starts detects the Image Acquisition under environment more, until every piece of tested screen traverses different detection environment
Detection.
Further:
Described image acquisition device is single camera.
The detection light source includes linear light source, and the linear light source is disposed therein in a screen detection station, with level
Angle polishing, for providing the optical environment configuration of detection scratch and dust.
It further include film pressing device, the film pressing device is disposed therein in a screen detection station, which detects work
Detection task on position includes point defect detection, and the film pressing device is used to apply tested screen in detection point thoroughly and press
Power.
It further include rotating device, the rotating device is disposed therein at least one screen detection station, for will be by
It surveys screen to be rotated relative to the orientation of described image acquisition device, makes shape between tested screen and described image acquisition device
At scheduled angle.
It further include the multiple objective tables being arranged in correspondence in multiple screen detection stations, the screen mobile device is examined every time
Muti-piece is tested screen when survey to be moved respectively to detect on the objective table corresponding to different screen detection station, until making
Every piece of tested screen traverses the detection of the different detection environment on different objective tables.
Including by station sequence be successively set on first to fourth screen detection station first to fourth objective table and
Film pressing device and two rotating devices；
The detection light source includes linear light source, and the linear light source is set on first objective table, is beaten with level angle
Light, for providing the optical environment configuration of detection scratch and dust；
The film pressing device is set on the third objective table, and the Detection task on the third objective table includes saturating
Point defect detection, the film pressing device are used to apply pressure to tested screen in detection point thoroughly；
Described two rotating devices are respectively arranged on second objective table and the 4th objective table, for that will be tested
Screen is rotated relative to the orientation of described image acquisition device, makes to be formed between tested screen and described image acquisition device
Scheduled angle makes to form scheduled angle between tested screen and described image acquisition device；
Wherein first objective table and second objective table, the 4th objective table are spatially adjacent, and described
One objective table and the third objective table monoclinic phase pair.
First to fourth objective table successively forms a circle arranged for interval, described first and third objective table monoclinic phase to setting
Set, described second and the 4th objective table be tiltedly oppositely arranged.
A kind of multi-environment AOI detection method of cycle type, using the multi-environment AOI detection device of cycle type to muti-piece quilt
Screen is surveyed to be detected simultaneously.
The tested screen is mobile phone screen.
The invention has the following beneficial effects:
In the multi-environment AOI detection device of cycle type of the invention, each screen detection station is configured to have and is adapted to examine
The different detection environment of specific screen defect type are surveyed, muti-piece is moved to by the screen mobile device with being tested screen synch
Different screen detection stations, described image acquisition device are tested screen in respectively current screen detection station to the muti-piece
Full work station Image Acquisition is carried out, so that each image includes the different screen detection station respectively corresponded under different detection environment
Multiple images region, each image-region be used for different defect types detection, wherein it is every carried out an Image Acquisition it
Afterwards, muti-piece is moved to respective next screen detection station by screen mobile device with being tested screen synch, by image collector
The Image Acquisition re-started under next round mostly detection environment is set, until every piece of tested screen is made to traverse different detection environment
Detection.Single image is detected same type of defect and is changed to single image by the multi-environment AOI detection device of cycle type of the invention
Detection a variety of different defects under different detection environment, the present invention can reduce light source decay and press mold seal request as a result,
Room for promotion utilization rate.In detection process, screen is tested acquiring muti-piece simultaneously using image collecting device (such as single camera)
On the basis of image, the present invention not only greatly improves image acquisition areas utilization rate, but also is also greatly reduced and adopts to image
Collect the requirement of environment, so that the decay of the seal request of sealing space and linear light source requires to minimize.
Compared with prior art, the present invention its remarkable advantage are as follows:
1) present invention improves the utilization rate of multistation image acquisition areas, so that in same camera resolution,
Physical layer level improves detection accuracy.
2) measurement of the invention reduces the requirement of image capture environment, for example, making the length dimension of linear light source and bright
Degree decay requires to minimize and the pressure area of single film pressing device minimizes, and is conducive to improve the uniformity of pressure, from
And improve the accuracy of detection.Specifically, each work is necessarily required different from traditional one camera multistation single image acquisition
The image capture environment of position is identical, and in the present invention, multiple stations are respectively configured respectively different image capture environment, such as
The realization of one of linear light source irradiation environment and another station press mold environment, it is only necessary to need linear light source irradiation environment
Linear light source is arranged on station and configures film pressing device on the station for needing press mold environment, without original multiple works
Position requires setting linear light source and film pressing device, so that the requirement of length and brightness decay to linear light source is preferably minimized,
The pressure area of film pressing device is preferably minimized, the seal request of sealing space is also minimized, implementing more for device is made
Add simply and readily, and reduces costs.
Detailed description of the invention
Fig. 1 is a kind of overall structure figure of the multi-environment AOI detection device of one camera cycle type of an embodiment of the present invention；
Fig. 2 is the flow chart of the multi-environment AOI detection device operation of one camera cycle type of an embodiment of the present invention.
Specific embodiment
It elaborates below to embodiments of the present invention.It is emphasized that following the description is only exemplary,
The range and its application being not intended to be limiting of the invention.
Refering to fig. 1 to Fig. 2, in one embodiment, a kind of multi-environment AOI detection device of cycle type, including multiple screens
Detection station shows first to fourth station 1-4 in figure, further includes detection light source, screen mobile device 6, image collecting device 5
With data processing equipment 10, it is adapted to detect specific screen defect type wherein each screen detection station is configured to have
Difference detection environment, the screen mobile device 6 are used to for muti-piece being moved to being tested screen synch different screen detection works
Position, the detection light source are used to provide the illumination condition needed for carrying out screen detection under corresponding to detection environment, and described image is adopted
Acquisition means 5, which are used to be tested the muti-piece screen, carries out full work station Image Acquisition in respectively current screen detection station, so that
Each image includes the multiple images region for respectively corresponding the different screen detection station under different detection environment, each image
Region is used for the detection of different defect types, and described image acquisition device 5 carries out data transmission with the data processing equipment 10,
The data processing equipment 10 handles acquired image, for the figure for corresponding to different detection environment of described image
As region, detecting corresponding tested screen whether there is related defects, wherein it is every carried out an Image Acquisition after, it is described
The muti-piece is tested screen and is moved to respective next screen detection station, described image acquisition device 5 by screen mobile device 6
The Image Acquisition under next round mostly detection environment is re-started, until every piece of tested screen is made to traverse the different inspections for detecting environment
It surveys.
In a preferred embodiment, described image acquisition device 5 is single camera.
In a preferred embodiment, the detection light source includes linear light source 7, and the linear light source 7 is disposed therein a screen
In curtain detection station, drawn with level angle polishing for providing the optical environment configuration of detection scratch and dust to meet
The requirement of horizontal side light source is needed in the detection of the defects of trace and dust.
In a preferred embodiment, the multi-environment AOI detection device of the cycle type further includes film pressing device 8, the press mold
Device 8 is disposed therein in a screen detection station, and the Detection task in the screen detection station includes point defect detection,
The film pressing device 8 is used to apply pressure to tested screen in detection point thoroughly, to meet the needs in the detection of saturating point defect
Apply the requirement of fixation pressure to tested screen.
In a preferred embodiment, the multi-environment AOI detection device of the cycle type further includes rotating device, the rotating dress
It installs and is placed in one at least one screen detection station, for the side by tested screen relative to described image acquisition device 5
Position is rotated, and makes to form scheduled angle between tested screen and described image acquisition device 5, to meet in mura, point
Angle requirement required in defects detection between described image acquisition device 5.
In a preferred embodiment, the multi-environment AOI detection device of the cycle type further includes being arranged in correspondence in multiple screens
Multiple objective tables of curtain detection station, the screen mobile device 6 every time detection when muti-piece be tested screen be moved respectively to pair
It should be detected on the objective table of different screen detection station, until traversing every piece of tested screen on different objective tables
The detection of difference detection environment.
Refering to fig. 1, in the especially preferred embodiments, the multi-environment AOI detection device of the cycle type is suitable including pressing station
Sequence is successively set on first to fourth objective table on first to fourth station 1-4 and film pressing device 8 and two rotating dress
It sets；
The detection light source includes linear light source 7, and the linear light source 7 is set on first objective table, with level angle
Polishing, for providing the optical environment configuration of detection scratch and dust, to meet the needs in the defects of scratch and dust is detected
The requirement of horizontal side light source；
The film pressing device 8 is set on the third objective table, and the Detection task on the third objective table includes
Saturating point defect detection, the film pressing device 8 is used to apply pressure to tested screen in detection point thoroughly, to meet in saturating point defect
Need to apply tested screen the requirement of fixation pressure in detection；
Described two rotating devices are respectively arranged on second objective table and the 4th objective table, for that will be tested
Screen is rotated relative to the orientation of described image acquisition device 5, makes shape between tested screen and described image acquisition device
At scheduled angle, wanted with meeting the required angle between described image acquisition device 5 in mura, point defect detection
It asks；
Wherein first objective table and second objective table, the 4th objective table are spatially adjacent, and described
One objective table and the third objective table monoclinic phase pair.
As shown in Figure 1, the light of the linear light source on the first objective table is parallel since the first station 1 is linear light source environment
Transmitting, when linear light source lights, if the objective table of its adjacent stations is aligned with the table-surface level of the first objective table, it will to adjacent
Detection environment impact, in the preferred embodiment of the present invention by the second objective table of second station 2, the 4th station 4 the 4th
Objective table is arranged in the position adjacent with the first objective table, and is respectively arranged with rotating device, second objective table and described
The rotating device of 4th objective table tilts the second objective table and the 4th objective table, therefore can avoid on the first objective table
Linear light source interference.After second objective table and the 4th objective table are tilted by rotating device, additionally provides and be able to detect mura
Environment is tilted required for defect.And the third objective table of 3rd station 3 and linear light source station position are in monoclinic phase pair, due to line
The light of light source is parallel launch, therefore third objective table can avoid the interference of the linear light source on the first objective table.
In a more preferred embodiment, first to fourth objective table successively forms a circle and arranged for interval, wherein the
One and third objective table be tiltedly oppositely arranged, described second and the 4th objective table be tiltedly oppositely arranged.
In another embodiment, the multi-environment AOI detection method of a kind of cycle type, it is polycyclic using aforementioned any cycle type
Border AOI detection device is tested screen to muti-piece while detecting.
In certain embodiments, the multi-environment AOI detection device of one camera cycle type, including objective table, film pressing device
8, screen mobile device 6, image collecting device 5, data processing equipment 10, linear light source 7, wherein film pressing device 8 and linear light source 7 divide
It is not assembled on objective table and objective table, wherein linear light source 7 is horizontal positioned, and film pressing device 8 is placed on objective table, mobile with screen
Device 6 controls the common multiple environmental conditions for completing AOI equipment by PLC 9 together.Image collecting device 5 and data processing equipment
10 are connected, the common processing part for completing image.The multi-environment AOI detection device of one camera cycle type can be realized Mobile phone screen and draw
The detection of the number of drawbacks such as trace, dust, abnormal point and mura.Muti-piece is tested screen and is respectively placed on each objective table, linear light
Source 7 and film pressing device 8 are separately fixed on corresponding objective table, and camera is carried by screen mobile device 6 is being located at objective table just
Top, film pressing device 8, screen mobile device 6 and linear light source 7 control its switch and corresponding movement by PLC, PLC with it is upper
Machine image processing apparatus is connected, and image collecting device 5 acquires image, transfers to data processing equipment 10 to collected figure later
As being handled, to detect whether determinand has defect.In detection process, is meeting single camera while acquiring four pieces of hands
On the basis of machine screen picture, image acquisition areas utilization rate is greatly improved, so that the seal request and linear light of sealing space
The decay in source 7 requires to minimize.
In certain embodiments, single image of the multi-environment AOI detection device of one camera cycle type in one acquisition
In detect four pieces of screens altogether, the defect type of every piece of screen detection is had nothing in common with each other, and four pieces of regions of image include required detection
All defect image capture environment, wherein four kinds of environment are as follows: region one is that linear light and objective table parallel, horizontal are placed, two He of region
Region four is that objective table rotates to certain angle, and region three is that film pressing device 8 presses to screen.
In certain embodiments, a kind of multi-environment Image-capturing platform of four stations, including four stations, linear light source 7,
Film pressing device 8, the objective table of corresponding four station 1-4 setting, image collecting device 5, screen mobile device 6, data processing dress
Set 10.Linear light source 7 is placed in station one, and with level angle polishing, the optical environment for detecting scratch and dust is configured.Press mold
Device 8 is placed in station three, for applying pressure when detecting.The objective table slant setting of station two and station four, is used for
The objective table of angle demand when satisfaction detection scratch and mura defect, station one and station three assembles linear light source 7 and pressure respectively
Film device 8, for meeting detection scratch, dust and point defect requirement.Image collecting device 5 is used to carry out image to tested screen
Acquisition, and carry out data transmission with data processing equipment 10.Screen mobile device 6 is used to carry out translation fortune with tested screen
It is dynamic, to complete the moving process of screen on four stations.Data processing equipment 10 is for controlling telecontrol equipment and and image collector
It sets 5 to be communicated, and carries out the processing to acquired image, the conclusion with the presence or absence of defect is provided after image procossing.
Referring to Fig.2, in certain embodiments, a kind of four station Mobile phone screen defect detecting device detection methods include with
Lower step:
(1) internal reference of 10 calibration for cameras of data processing equipment and outer ginseng, refer specifically to camera system in space coordinates
In position and focal length, pixel dimension, the degree of distortion of camera etc.；
(2) four pieces of Mobile phone screens are placed on four specific regions, film pressing device pressure to fixation pressure by screen mobile device 6
Threshold value, rotating device rotate to fixed angle, acquire the image under four kinds of environment, data processing by image collecting device 5 later
Device 10, which detects four kinds of environment sub-screens, whether there is defect；
(3) film pressing device in region three returns to initialized location, and four pieces of screens are moved to by screen mobile device 6 clockwise
Next station, presses again, and image collecting device 5 resurveys image, and data processing equipment 10 detects again, so recycles four
Secondary, so that every piece of screen is output to subsequent processing after traversing four kinds of detection environment, detection is finished.
In certain embodiments, the multi-environment AOI detection device of one camera cycle type includes:
Linear light source 7, for meeting the requirement for needing horizontal side light source in the defects of scratch dust is detected；
Two turntables, for meeting the requirement for needing fixed angle between camera in mura, point defect detection
Film pressing device 8, for meeting the requirement needed in the detection of saturating point defect to screen application fixation pressure
Image collecting device 5 for carrying out Image Acquisition to tested screen, and carries out data biography with data processing equipment
It is defeated；
Screen mobile device 6, for being moved to next station clockwise with screen, to complete monolithic screen in different rings
Image acquisition request under border；
Data processing equipment 10, handles acquired image, detects corresponding screen with the presence or absence of defect.
The above content is combine it is specific/further detailed description of the invention for preferred embodiment, cannot recognize
Fixed specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, some replacements or modifications can also be made to the embodiment that these have been described,
And these substitutions or variant all shall be regarded as belonging to protection scope of the present invention.
Claims (10)
1. a kind of multi-environment AOI detection device of cycle type, which is characterized in that including multiple screen detection stations, detection light source, screen
Curtain mobile device, image collecting device and data processing equipment are adapted to examine wherein each screen detection station is configured to have
The different detection environment of specific screen defect type are surveyed, the screen mobile device for moving muti-piece with being tested screen synch
Different screen detection stations is moved, the detection light source is used to provide to be detected under environment needed for the detection of progress screen corresponding
Illumination condition, described image acquisition device are used to be tested the muti-piece screen and carry out entirely in respectively current screen detection station
Station Image Acquisition so that each image include respectively correspond it is different detection environment under different screen detection station it is multiple
Image-region, each image-region are used for the detection of different defect types, and described image acquisition device and the data processing fill
It sets and carries out data transmission, the data processing equipment handles acquired image, for corresponding to not for described image
With the image-region of detection environment, detecting corresponding tested screen whether there is related defects, wherein every to have carried out an image
After acquisition, the muti-piece is tested screen and is moved to respective next screen detection station by the screen mobile device, described
The next round that image collecting device re-starts detects the Image Acquisition under environment more, until every piece of tested screen traverses different detections
The detection of environment.
2. the multi-environment AOI detection device of cycle type as described in claim 1, which is characterized in that described image acquisition device is
Single camera.
3. the multi-environment AOI detection device of cycle type as claimed in claim 1 or 2, which is characterized in that the detection light source includes
Linear light source, the linear light source are disposed therein in a screen detection station, with level angle polishing, for providing detection scratch
It is configured with the optical environment of dust.
4. the multi-environment AOI detection device of cycle type as described in any one of claims 1 to 3, which is characterized in that further include press mold
Device, the film pressing device are disposed therein in a screen detection station, and the Detection task in the screen detection station includes
Saturating point defect detection, the film pressing device are used to apply pressure to tested screen in detection point thoroughly.
5. such as the multi-environment AOI detection device of the described in any item cycle types of Claims 1-4, which is characterized in that further include rotation
Device, the rotating device are disposed therein at least one screen detection station, are used for tested screen relative to the figure
As the orientation of acquisition device is rotated, make to form scheduled angle between tested screen and described image acquisition device.
6. such as the multi-environment AOI detection device of cycle type described in any one of claim 1 to 5, which is characterized in that further include corresponding to
Multiple objective tables of multiple screen detection stations are arranged in ground, and muti-piece is tested screen when the screen mobile device detects every time
It is moved respectively to be detected on the objective table corresponding to different screen detection station, until making every piece of tested screen traversal not
With the detection of the different detection environment on objective table.
7. the multi-environment AOI detection device of cycle type as claimed in claim 6, which is characterized in that including pressing station sequence successively
First to fourth objective table and film pressing device and two rotating devices of first to fourth screen detection station are set；
The detection light source includes linear light source, and the linear light source is set on first objective table, with level angle polishing, is used
It is configured in the optical environment for providing detection scratch and dust；
The film pressing device is set on the third objective table, and the Detection task on the third objective table includes putting to lack thoroughly
Detection is fallen into, the film pressing device is used to apply pressure to tested screen in detection point thoroughly；
Described two rotating devices are respectively arranged on second objective table and the 4th objective table, are used for tested screen
Orientation relative to described image acquisition device is rotated, and makes to be formed between tested screen and described image acquisition device predetermined
Angle；
Wherein first objective table and second objective table, the 4th objective table are spatially adjacent, and described first carries
Object platform and the third objective table monoclinic phase pair.
8. the multi-environment AOI detection device of cycle type as claimed in claim 7, which is characterized in that first to fourth loading
Platform successively forms a circle arranged for interval, and described first and third objective table are tiltedly oppositely arranged, described second and the 4th objective table it is oblique
It is oppositely arranged.
9. a kind of multi-environment AOI detection method of cycle type, which is characterized in that use wheel as claimed in any one of claims 1 to 8
Rotatable multi-environment AOI detection device is tested screen to muti-piece while detecting.
10. the multi-environment AOI detection device of cycle type as claimed in claim 9, which is characterized in that the tested screen is mobile phone
Screen.
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