CN208303273U - A kind of automatic luminance of light guide plate based on machine vision measures and its loading and unloading sorting device - Google Patents
A kind of automatic luminance of light guide plate based on machine vision measures and its loading and unloading sorting device Download PDFInfo
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- CN208303273U CN208303273U CN201820186486.6U CN201820186486U CN208303273U CN 208303273 U CN208303273 U CN 208303273U CN 201820186486 U CN201820186486 U CN 201820186486U CN 208303273 U CN208303273 U CN 208303273U
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- guide plate
- light guide
- guide rail
- luminance
- feeding
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Abstract
The utility model discloses a kind of automatic luminance of the light guide plate based on machine vision and measures and its loading and unloading sorting device, including feeding module, luminance measurement module, cutting module and device framework, the feeding module includes feeding manipulator and feeding device, the luminance measurement module includes industrial camera, second motion guide rail, toter and light source, the industrial camera includes the second camera for controlling light guide plate positional deviation correction and the first camera for the measurement of light guide plate luminance, the toter is moved along the second motion guide rail horizontal direction, the light source is fixed on device framework by trapezoidal connection sheet, the light source is located at the top of the second motion guide rail, the cutting module includes blanking mechanical hand and blanking device, the full-automatic operation of feeding and discharging of guide-lighting panel products may be implemented, the equipment can replace artificial progress light guide plate The loading and unloading operation of product, while light guide plate luminance measurement can be effectively carried out, the reliability of detection efficiency height and testing result is big.
Description
[technical field]
The utility model relates to the technical fields that light guide plate detects ancillary equipment automatically, especially a kind of to be based on machine vision
The automatic luminance of light guide plate measure and its technical field of loading and unloading sorting device.
[background technique]
Light guide plate is acrylic, PMMA, MS, the PC plate material using optical grade, then with high reflectivity and not inhaling
The hitech materials of light stamp light guiding points with UV screen printing technology in the acryl plates bottom surface of optical grade.Light guide plate can be with
Required size is arbitrarily cut into, use can also be spliced；In the case of homalographic light emission luminance, luminous efficiency is high, power consumption
It is low.Single side micro structure array light guide plate generally uses the manufacture craft of ejection formation.
Light guide plate design principle is derived from the liquid crystal display of laptop, is the high-tech that linear light source is changed into area source
Skill product.Optical grade acryl PC is substrate, with the back light model setting technology of LCD display and laptop, through leaded light
The high light line of point passes to rate, calculates through computer light guiding points, is manufactured the refraction of light guide plate optical fiber at the equal light state of area source.
Product is combined with number UV printing technology and is made under constant temperature, constant humidity, dustless environmental condition using spectrophotometry
It forms.With ultra-thin, superbright, it is guide-lighting uniformly, energy-saving and environmental protection, no dark space, durable, to be not easy yellow, installation and maintenance simple and fast etc.
Distinguishing feature.
With the progress of society and science and technology, requirement of the people to product quality is higher and higher.And produce the enterprise of light guide plate
It carrying out luminance context of detection is detected using human eye, it, will be inevitable using traditional artificial detection method
Face that low efficiency, of poor quality, labor intensity of workers is big, the problem of detection reliability depends on many subjective factors, therefore mention
A kind of automatic luminance measurement of light guide plate based on machine vision and its loading and unloading sorting device out.
[utility model content]
The purpose of this utility model is exactly to solve to observe using human eye in the prior art, and this mode is not only required
Artificial quantity is more, and long working will will appear with asthenopia, large labor intensity, longevity of service, and be highly prone to people's
The influence of subjective factor, proposes a kind of automatic brightness of the light guide plate based on machine vision at the problem of influencing the quality of production of light guide plate
Measurement is surveyed and its loading and unloading sorting device, the automatic loading/unloading operation of guide-lighting panel products may be implemented, while by increasing luminance
Measurement module rationally and effectively determines the brightness value of guide-lighting panel products, can replace the artificial progress automatic luminance amount of light guide plate
Operation is surveyed, the quality of production of guide-lighting panel products can be effectively improved.
To achieve the above object, measure the utility model proposes a kind of automatic luminance of light guide plate based on machine vision and
Its loading and unloading sorting device, including feeding module, luminance measurement module, cutting module and device framework, the feeding module packet
Feeding manipulator and feeding device are included, the feeding manipulator is movably arranged on feeding device, the luminance measurement module packet
Industrial camera, the second motion guide rail, toter and light source are included, the industrial camera includes first camera and second camera, institute
It states second camera and is measured for controlling the positional deviation correction of light guide plate, luminance of the first camera for light guide plate, the delivery
Device is moved along the second motion guide rail horizontal direction, and the light source is fixed on device framework by trapezoidal connection sheet, the light
Source is located at the top of the second motion guide rail, and the cutting module includes blanking mechanical hand and blanking device, the blanking mechanical hand
It is movably arranged on blanking device.
Preferably, the field-of-view angle of the first camera is 1 °, operating distance w is 45~65cm, the first camera
The acquisition for completing the image of guide-lighting panel products is chosen 13 regions that light guide plate luminance measures by computer processing system, is utilized
Algorithm calculates the Density Distribution of each region automatically, and the second camera carries out light guide plate Surface scan, main completion light guide plate
Positional deviation correction correction is placed on the toter of light guide plate using feeding manipulator by light guide plate is accurate.
Preferably, 13rd area that the light guide plate luminance measures region include, a length of W wide of light guide plate is set at the 1st~13 point
For H, the 1st point is central luminance point, and coordinate is (h/2, w/2)；2nd, 5 point, respectively away from adjacent long axis h/4, apart from adjacent short
Axis w/4, and the horizontal symmetrical arrangement of the 2nd and 3,4 and 5, the vertically symmetrical arrangement in 2 and 4,3 and 5；6th, 8,11,13 point respectively away from
It is 10mm at a distance from adjacent short axle from adjacent long axis, and the 6th and 8,11 and 13 horizontal symmetricals arrange, the 6th and 11,8 and 13
Vertically symmetrical arrangement；7th and 12 points respectively apart from adjacent long axis 10mm, respectively apart from adjacent short axle w/2；9th and 10 points difference
Apart from adjacent long axis h/2, respectively apart from adjacent short axle 10mm.
Preferably, the blanking device includes third motion guide rail, third slide unit and drive shaft, the third slide unit
It is movably arranged on third motion guide rail, the blanking device is equipped with drive shaft, and the blanking mechanical hand is 3DOF；
The rotation of one shaft body, two axis move up and down, and three axis side-to-side movements, the blanking mechanical hand includes blanking sucker, cylinder and rack,
One end of the rack is fixed in drive shaft, and the other end of the rack is equipped with cylinder, the cylinder and blanking sucker phase
Even, the absorption of guide-lighting panel products may be implemented from external vacuum pump apparatus in the power of the blanking sucker.
Preferably, the feeding manipulator is 3DOF, shaft body rotation, the up and down motion of two axis, three axis front and back fortune
Dynamic, the feeding device includes the first motion guide rail and first motor, and first motion guide rail is led including the first guide rail, second
Rail, the feeding manipulator are equipped with the first slide unit, and first slide unit is described by the movement of the second guide rail along the x axis
First guide rail is movably arranged on the second guide rail, the feeding manipulator by the movement of the first guide rail along the y axis, it is described on
Material manipulator is plane formula, and the feeding manipulator is driven by outer inside casing, realizes grabbing for product by air-breathing and deflation
It takes, by controlling vacuum generator, realizes moving up and down for push rod, and then can control shifting of the feeding manipulator along Z-direction
It is dynamic.
Preferably, the upper surface of the toter is equipped with the groove for placing light guide plate to be detected, the fortune
It carries to set and be moved horizontally under the driving of the second motor, second motion guide rail is equipped with the mobile limit of control toter
Device.
The utility model has the beneficial effects that the utility model is by feeding module, luminance measurement module, cutting module and sets
The reasonable cooperation of standby frame etc., wherein second camera carries out light guide plate Surface scan, and the main positional deviation correction for completing light guide plate corrects,
It is placed on the toter of light guide plate using feeding manipulator by light guide plate is accurate；First camera cooperation delivery dress
It sets, first camera carries out the line scanning of light guide plate, obtains the image information of light guide plate, and by computer processing system in leaded light
13 regions are reasonably selected on plate, and obtain the brightness value in 13 regions, can effectively determine the luminance index of light guide plate,
Cooperate feeding module and cutting module simultaneously, the full-automatic operation of feeding and discharging of guide-lighting panel products may be implemented, which can take
The generation artificial loading and unloading operation for carrying out guide-lighting panel products, while light guide plate luminance measurement can be effectively carried out, detection efficiency is high
And the reliability of testing result is big.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of automatic luminance measurement of light guide plate based on machine vision of the utility model and its loading and unloading sorting device
Structural schematic diagram；
Fig. 2 is a kind of automatic luminance measurement of light guide plate based on machine vision of the utility model and its loading and unloading sorting device
Feeding module structure schematic diagram；
Fig. 3 is a kind of automatic luminance measurement of light guide plate based on machine vision of the utility model and its loading and unloading sorting device
Luminance measurement module schematic diagram；
Fig. 4 is a kind of automatic luminance measurement of light guide plate based on machine vision of the utility model and its loading and unloading sorting device
Toter schematic diagram；
Fig. 5 is a kind of automatic luminance measurement of light guide plate based on machine vision of the utility model and its loading and unloading sorting device
Cutting module schematic diagram；
Fig. 6 is a kind of automatic luminance measurement of light guide plate based on machine vision of the utility model and its loading and unloading sorting device
Light guide plate luminance selection of measuring point region schematic diagram.
[specific embodiment]
Refering to fig. 1 to Fig. 6, a kind of automatic luminance of light guide plate based on machine vision of the utility model measures and its loading and unloading
Sorting device, including feeding module, luminance measurement module, cutting module and device framework 6, the feeding module include feeder
Tool hand 1 and feeding device 2, the feeding manipulator 1 are movably arranged on feeding device 2, and the luminance measurement module includes work
Industry camera 3, the second motion guide rail 7, toter 10 and light source 8, the industrial camera 3 include first camera 3.1 and the second phase
Machine 3.2, the second camera 3.2 are used to control the positional deviation correction of light guide plate, and the first camera 3.1 is used for the brightness of light guide plate
Measurement is surveyed, and the toter 10 is moved along 7 horizontal direction of the second motion guide rail, and the light source 8 is fixed by trapezoidal connection sheet
On device framework 6, the light source 8 is located at the top of the second motion guide rail 7, and the cutting module includes 4 He of blanking mechanical hand
Blanking device 5, the blanking mechanical hand 4 are movably arranged on blanking device 5.The field-of-view angle of the first camera 3.1 is 1 °,
Operating distance w is 45~65cm, and it is 13rd area that light guide plate luminance, which measures region, calculates the density point of each region automatically using algorithm
Cloth.13rd area that the light guide plate luminance measures region include the 1st~13 point, set a length of W wide of light guide plate as H, be center at the 1st point
Luminance point, coordinate are (h/2, w/2)；2nd, 5 point, respectively away from adjacent long axis h/4, apart from adjacent short axle w/4, and the 2nd and 3,
4 and the arrangement of 5 horizontal symmetricals, the vertically symmetrical arrangement in 2 and 4,3 and 5；6th, 8,11,13 point respectively apart from adjacent long axis with it is adjacent
The distance of short axle is 10mm, and the 6th and 8,11 and 13 horizontal symmetricals arrange, the vertically symmetrical arrangement in the 6th and 11,8 and 13；7th
With 12 points respectively apart from adjacent long axis 10mm, respectively apart from adjacent short axle w/2；9th and 10 points respectively apart from adjacent long axis h/2,
Respectively apart from adjacent short axle 10mm.The blanking device 5 includes third motion guide rail 5.1, third slide unit 5.2 and drive shaft
5.3, the third slide unit 5.2 is movably arranged on third motion guide rail 5.1, and the blanking device 5 is equipped with drive shaft
5.3, the blanking mechanical hand 4 is 3DOF；The rotation of one shaft body, two axis move up and down, three axis side-to-side movements, the blanking
Manipulator 4 includes blanking sucker 4.1, cylinder 4.2 and rack 4.3, and one end of the rack 4.3 is fixed in drive shaft 5.3,
The other end of the rack 4.3 is equipped with cylinder 4.2, and the cylinder 4.2 is connected with blanking sucker 4.1, the blanking sucker 4.1
The absorption of guide-lighting panel products may be implemented from external vacuum pump apparatus in power.The feeding manipulator 1 is 3DOF,
The rotation of one shaft body, two axis move up and down, and three axis move forward and backward, and the feeding device 2 includes the first motion guide rail 2.1 and the
One motor 2.2, first motion guide rail 2.1 include the first guide rail, the second guide rail, and the feeding manipulator 1 is equipped with first
One end of slide unit 2.3, first slide unit 2.3 is fixedly installed with plastics crawler belt, can be with sliding shoe 2.3 in the horizontal direction
Upper movement, plastics crawler belt are then placed in rectangular channel 2.4, and first slide unit 2.3 passes through the shifting of the second guide rail along the x axis
Dynamic, first guide rail is movably arranged on the second guide rail, and the feeding manipulator 1 is mounted on the second slide unit 1.4, and described the
For two slide units 1.4 by the movement of the first guide rail along the y axis, the feeding manipulator 1 is plane formula, the feeding manipulator 1
Upper end be fixedly installed with third motor 1.2, by control third motor 1.2 rotation, plane formula sucker 1.1 may be implemented
Rotation；The feeding manipulator 1 is driven by outer inside casing, by the crawl of air-breathing and realization product of deflating, passes through control
Vacuum generator 1.3 realizes moving up and down for push rod, and then can control the moving along Z-direction of feeding manipulator 1.It is described
The upper surface of toter 10 is equipped with the groove for placing light guide plate to be detected, and the toter 10 is in the second motor 12
Driving under move horizontally, second motion guide rail 7 is equipped with the mobile limiting device 11 of control toter 10.
Utility model works process:
A kind of automatic luminance of light guide plate based on machine vision of the utility model measures and its loading and unloading sorting device is in work
During work:
The principle of feeding module: the upper end of feeding manipulator 1 is fixedly installed with third motor 1.2, passes through control third electricity
The rotation of plane formula sucker 1.1 may be implemented in the rotation of machine 1.2；Vacuum generator is installed on feeding manipulator 1 simultaneously
Device 1.3 is transported up and down using the air-breathing and realization feeding manipulator of deflating of vacuum generator 1.3 in the movement of Z-direction
It is dynamic；Vacuum generator 1.3 is fixedly mounted on the second slide unit 1.4, driving effect of second slide unit 1.4 in first motor 2.2
Under, it can be moved along the first guide rail direction, i.e. movement of the realization feeding manipulator in Y direction；First guide rail is fixedly mounted on
On first slide unit 2.3, under the action of motor 2.2, movement of the entire feeding device in the second guide rail direction may be implemented, i.e.,
The movement of X-direction；One end of the first slide unit 2.3 is fixedly installed with plastics crawler belt simultaneously, can be with the first slide unit 2.3
It moves in the horizontal direction, plastics crawler belt is then placed in rectangular channel 2.4.
The principle of luminance measurement module: second camera 3.2 carries out Surface scan, obtains the guide-lighting panel products on toter 10
Image judges whether guide-lighting panel products are accurately placed on toter 10 using relevant image procossing, and utilizes feeding
Manipulator 1 is corrected；Simultaneously toter 10 under the control of the second motor 12, can along 7 direction of the second motion guide rail into
Guide-lighting panel products are transported to discharging end from feeding end by row movement；When toter 10 is by light source position, first camera
3.1 into line scan, extracts the brightness value in 13 region set on guide-lighting panel products respectively；13 set regions:
13rd area that light guide plate luminance measures region include the 1st~13 point, set a length of W wide of light guide plate as H, and the 1st point is
Luminance point is entreated, coordinate is (h/2, w/2)；2nd, 5 point, respectively away from adjacent long axis h/4, apart from adjacent short axle w/4, and the 2nd He
3,4 and the arrangement of 5 horizontal symmetricals, the vertically symmetrical arrangement in 2 and 4,3 and 5；6th, 8,11,13 point respectively apart from adjacent long axis and phase
The distance of adjacent short axle is 10mm, and the 6th and 8,11 and 13 horizontal symmetricals arrange, the vertically symmetrical arrangement in the 6th and 11,8 and 13；
7th and 12 points respectively apart from adjacent long axis 10mm, respectively apart from adjacent short axle w/2；9th and 10 points respectively apart from adjacent long axis
H/2, respectively apart from adjacent short axle 10mm.
Wherein, toter 10 prevents conveyer from two sides during mobile on guide rail using limiting device 11
Guide rail is removed, moves it smoothly along guide rail direction, first camera 3.1 completes the scanning of guide-lighting panel products, and to corresponding 13
A region obtains its brightness value, calculates separately out the density in each area, brightness value corresponding to 13 areas of acquisition, and carry out brightness
Spend statistical comparison；
The working principle of cutting module: it is measured to guide-lighting panel products luminance after completing, toter 10 transports product
To discharging end.Cutting module mainly includes blanking mechanical hand 4 and blanking device 5；For the ease of grabbing guide-lighting panel products, blanking machine
Tool hand is designed as plane formula sucker 4.1, and the suction of guide-lighting panel products may be implemented from external vacuum pump apparatus in power
It takes；The upper end of blanking mechanical hand 4 is equipped with cylinder, and the upper of blanking mechanical hand may be implemented with deflation in the air-breathing by controlling cylinder
The movement of Z-direction is realized in lower movement；Organic frame 4.3, the other end of rack 4.3 is fixedly mounted in the upper end of blanking mechanical hand
It is fixed in drive shaft 5.3, entire blanking mechanical hand can be rotated with shaft, and rotation angle control is clockwise
0 °~180 °；Drive shaft 5.3 and third slide unit 5.2 are fixedly mounted, and third slide unit 5.2 under the drive of the motor, can be along the
It is moved in three guide rails, 5.1 direction；If it is detected that light guide plate be certified products, blanking mechanical hand 4 under the action of vacuum generator, into
The crawl of row product is moved along 5.1 direction of third guide rail under the control of motor, when being moved to other end, is passed through
The vacuum breaker of cylinder adsorbs, and realizes the placement of product, certified products is placed on the assembly line of certified products；If it is detected that result be secondary
Product, blanking mechanical hand 4 in the presence of cylinder, carry out the crawl of product, using the control of drive shaft 5.3, realize blanking machine
The rotation of the Z axis of tool hand, rotation angle is 180 °, while vacuum generator vacuum breaker adsorbs, and realizes the placement of product, will
Substandard products are placed on the lining-up machine of substandard products, realize certified products, the sorting of substandard products arranges.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, and any pair of sheet is practical new
Scheme after type simple transformation belongs to the protection scope of the utility model.
Claims (6)
1. a kind of automatic luminance of light guide plate based on machine vision measures and its loading and unloading sorting device, it is characterised in that: including
Feeding module, luminance measurement module, cutting module and device framework (6), the feeding module include feeding manipulator (1) and upper
Expect device (2), the feeding manipulator (1) is movably arranged on feeding device (2), and the luminance measurement module includes industrial phase
Machine (3), the second motion guide rail (7), toter (10) and light source (8), the industrial camera (3) include first camera (3.1)
With second camera (3.2), the second camera (3.2) is used to control the positional deviation correction of light guide plate, and the first camera (3.1) is used
It is measured in the luminance of light guide plate, the toter (10) is mobile along the second motion guide rail (7) horizontal direction, the light source (8)
It is fixed on device framework (6) by trapezoidal connection sheet, the light source (8) is located at the top of the second motion guide rail (7), under described
Expect that module includes blanking mechanical hand (4) and blanking device (5), the blanking mechanical hand (4) is movably arranged on blanking device (5)
On.
2. the automatic luminance of a kind of light guide plate based on machine vision as described in claim 1 measures and its loading and unloading sorting is set
It is standby, it is characterised in that: the field-of-view angle of the first camera (3.1) is 1 °, and operating distance w is 45~65cm, light guide plate luminance
Measurement region is 13rd area, calculates the Density Distribution of each region automatically using algorithm.
3. the automatic luminance of a kind of light guide plate based on machine vision as claimed in claim 2 measures and its loading and unloading sorting is set
It is standby, it is characterised in that: 13rd area that the light guide plate luminance measures region include the 1st~13 point, set a length of W wide of light guide plate as H,
1st point is central luminance point, and coordinate is (h/2, w/2)；2nd, 5 point, respectively away from adjacent long axis h/4, apart from adjacent short axle w/
4, and the horizontal symmetrical arrangement of the 2nd and 3,4 and 5, the vertically symmetrical arrangement in 2 and 4,3 and 5；6th, 8,11,13 point respectively apart from adjacent
Long axis is 10mm at a distance from adjacent short axle, and the 6th and 8,11 and 13 horizontal symmetricals arrange, and the 6th and 11,8 and 13 is vertical right
Claim arrangement；7th and 12 points respectively apart from adjacent long axis 10mm, respectively apart from adjacent short axle w/2；9th and 10 points respectively apart from phase
Adjacent long axis h/2, respectively apart from adjacent short axle 10mm.
4. the automatic luminance of a kind of light guide plate based on machine vision as described in claim 1 measures and its loading and unloading sorting is set
It is standby, it is characterised in that: the blanking device (5) includes third motion guide rail (5.1), third slide unit (5.2) and drive shaft
(5.3), the third slide unit (5.2) is movably arranged on third motion guide rail (5.1), and the blanking device (5), which is equipped with, drives
Turn axis (5.3), the blanking mechanical hand (4) are 3DOF；The rotation of one shaft body, two axis move up and down, three axis or so fortune
Dynamic, the blanking mechanical hand (4) includes blanking sucker (4.1), cylinder (4.2) and rack (4.3), and the one of the rack (4.3)
End is fixed on drive shaft (5.3), and the other end of the rack (4.3) is equipped with cylinder (4.2), and the cylinder (4.2) is under
Expect that sucker (4.1) are connected, light guide plate may be implemented from external vacuum pump apparatus in the power of the blanking sucker (4.1)
The absorption of product.
5. the automatic luminance of a kind of light guide plate based on machine vision as described in claim 1 measures and its loading and unloading sorting is set
It is standby, it is characterised in that: the feeding manipulator (1) is 3DOF, shaft body rotation, the up and down motion of two axis, three axis front and back fortune
Dynamic, the feeding device (2) includes the first motion guide rail (2.1) and first motor (2.2), first motion guide rail (2.1)
Including the first guide rail, the second guide rail, the feeding manipulator (1) is equipped with the first slide unit (2.3), first slide unit (2.3)
By the movement of the second guide rail along the x axis, first guide rail is movably arranged on the second guide rail, the feeding manipulator 1
It is mounted on the second slide unit (1.4), second slide unit (1.4) passes through the movement of the first guide rail along the y axis, the feeder
Tool hand (1) is plane formula, and the feeding manipulator (1) is driven by outer inside casing, passes through air-breathing and realization product of deflating
Crawl realizes moving up and down for push rod, and then can control feeding manipulator (1) along Z by controlling vacuum generator (1.3)
The movement of axis direction.
6. the automatic luminance of a kind of light guide plate based on machine vision as described in claim 1 measures and its loading and unloading sorting is set
It is standby, it is characterised in that: the upper surface of the toter (10) is equipped with the groove for placing light guide plate to be detected, the fortune
It carries and sets (10) and moved horizontally under the driving of the second motor (12), second motion guide rail (7) is equipped with control delivery dress
Set (10) mobile limiting device (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820186486.6U CN208303273U (en) | 2018-02-02 | 2018-02-02 | A kind of automatic luminance of light guide plate based on machine vision measures and its loading and unloading sorting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820186486.6U CN208303273U (en) | 2018-02-02 | 2018-02-02 | A kind of automatic luminance of light guide plate based on machine vision measures and its loading and unloading sorting device |
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| CN208303273U true CN208303273U (en) | 2019-01-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380521A (en) * | 2018-02-02 | 2018-08-10 | 嵊州市东浩电子科技有限公司 | A kind of automatic briliancy of light guide plate based on machine vision measures and its loading and unloading sorting device |
| CN111272770A (en) * | 2020-02-18 | 2020-06-12 | 长沙师范学院 | Product detection device based on machine vision |
-
2018
- 2018-02-02 CN CN201820186486.6U patent/CN208303273U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380521A (en) * | 2018-02-02 | 2018-08-10 | 嵊州市东浩电子科技有限公司 | A kind of automatic briliancy of light guide plate based on machine vision measures and its loading and unloading sorting device |
| CN111272770A (en) * | 2020-02-18 | 2020-06-12 | 长沙师范学院 | Product detection device based on machine vision |
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