CN114441550B - Device for inspecting defects of light guide plate by laser - Google Patents
Device for inspecting defects of light guide plate by laser Download PDFInfo
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- CN114441550B CN114441550B CN202210119030.9A CN202210119030A CN114441550B CN 114441550 B CN114441550 B CN 114441550B CN 202210119030 A CN202210119030 A CN 202210119030A CN 114441550 B CN114441550 B CN 114441550B
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- light guide
- guide plate
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- plate
- supporting table
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- 230000007547 defect Effects 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000007689 inspection Methods 0.000 claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims description 46
- 230000002457 bidirectional effect Effects 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention is suitable for the technical field of light guide plate detection, and provides a device for inspecting defects of a light guide plate by laser, which comprises: a movable support; the laser inspection mechanism is arranged on the movable supporting table and is used for providing line laser irradiation; the second mounting seat is arranged on the movable supporting table and positioned in front of the output end of the laser inspection mechanism; the clamping and fixing mechanism is arranged on the second mounting seat and used for clamping and fixing the upper side and the lower side of the light guide plate; and the side fixing mechanism is arranged on the clamping fixing mechanism and used for clamping and fixing two sides of the light guide plate, so that the light guide plate can be effectively inspected, image background noise is eliminated, and misjudgment is reduced.
Description
Technical Field
The invention belongs to the technical field of light guide plate detection, and particularly relates to a device for inspecting defects of a light guide plate by laser.
Background
At present, a mobile phone light guide plate visual detection system uses side-in illumination. When light rays are incident from the saw tooth surface of the light guide plate and encounter uneven media such as flaws, stronger scattering can occur, the flaws and other defects are displayed with higher contrast, and the image recognition system can automatically detect.
However, in the above prior art, when LED is used for illumination, the light emitting surface of the light source is hemispherical, so that the light is more overflowed, and the light is uncontrollable, the reflection of the light on the inner wall of the device and the reflection of the light guide plate lower part carrier table form certain noise on the image background, and the image recognition will be misjudged, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a device for inspecting defects of a light guide plate by laser, which aims to solve the problems in the background technology.
The present invention is achieved by a device for inspecting defects of a light guide plate by laser, comprising:
a movable support;
the laser inspection mechanism is arranged on the movable supporting table and is used for providing line laser irradiation;
the second mounting seat is arranged on the movable supporting table and positioned in front of the output end of the laser inspection mechanism;
The clamping and fixing mechanism is arranged on the second mounting seat and used for clamping and fixing the upper side and the lower side of the light guide plate; and the side position fixing mechanism is arranged on the clamping and fixing mechanism and is used for clamping and fixing the two sides of the light guide plate.
Preferably, the laser inspection mechanism includes:
The first mounting seat is fixed on the movable supporting table;
The line laser transmitter is arranged on the first mounting seat; and the transmitting end is arranged on the line laser transmitter, and the front of the output end is flush with the center of the clamping and fixing mechanism.
Preferably, the clamping and fixing mechanism comprises:
The fixing frame is fixed on the second mounting seat;
The bidirectional screw rod is rotationally arranged on the second mounting seat, and one end of the bidirectional screw rod is rotationally connected with the fixing frame;
the guide seats are attached to the fixing frame, are in threaded connection with the bidirectional screw rod, and are symmetrically distributed;
The first clamping plate is fixed on the guide seat; and the driving unit is arranged on the second mounting seat and used for driving the bidirectional screw rod to rotate.
Preferably, the driving unit includes:
The turntable is arranged at one end of the bidirectional screw rod;
one end of the elastic rope is wound on the bidirectional screw rod; the fixing piece is fixed on the second mounting seat and fixedly connected with one end of the elastic rope far away from the bidirectional screw rod;
The turntable is connected with a limiting piece for limiting the rotation of the turntable.
Preferably, the side fixing mechanism includes:
one end of the connecting rod is hinged to the side face of the guide seat and is obliquely arranged;
The second clamping plates are positioned at the middle positions of the two guide seats, are hinged with one end of the connecting rod, which is far away from the guide seats, and are respectively positioned at two sides of the light guide plate; the second limiting sliding piece is fixed on one side of the second clamping plate, which is far away from the light guide plate, and is attached to the side face of the first clamping plate for sliding;
And one side of the second clamping plate, which is close to the light guide plate, is provided with an extrusion inclined plane.
Preferably, a buffer fixing component is arranged in the second clamping plate and is used for reinforcing and fixing the light guide plate.
Preferably, the buffering fixing assembly includes:
the elastic extrusion plate is arranged on the second clamping plate in a sliding manner, and a sliding cavity matched with the elastic extrusion plate is formed in the second clamping plate;
the extrusion rod is arranged in the second clamping plate in a sliding manner, and one end of the extrusion rod is fixed with one side, away from the light guide plate, of the elastic extrusion plate;
The limiting block is fixed at one end of the extrusion rod, which is far away from the elastic extrusion plate, and is in sliding connection with the second clamping plate, and the outer diameter of the limiting block is larger than that of the elastic extrusion plate; the elastic piece is sleeved on the extrusion rod and is positioned between the elastic extrusion plate and the inner wall of the sliding cavity;
the elastic extrusion plate is connected with a fastening bolt for limiting the movement of the elastic extrusion plate.
Preferably, the apparatus further comprises:
the fixed supporting table is arranged below the movable supporting table; and the lifting mechanism is arranged on the fixed supporting table and used for adjusting the height of the movable supporting table.
Preferably, the lifting mechanism comprises:
The first limiting sliding piece is arranged on the fixed supporting table in a sliding manner;
One end of the screw rod is fixed on the first limit sliding piece, and the other end of the screw rod extends to the upper part of the fixed supporting table and is fixed with the movable supporting table;
the rotary screw sleeve is rotationally arranged on the fixed supporting table and is in threaded connection with the screw rod; and the power assembly is arranged on the fixed supporting table and used for driving the rotary screw sleeve to rotate.
Preferably, the power assembly comprises:
The driving motor is arranged on the fixed supporting table;
The second cylindrical spur gear is arranged at the output end of the driving motor; and the first cylindrical spur gear is arranged on the rotary screw sleeve and is meshed with the second cylindrical spur gear.
The device for inspecting the defects of the light guide plate by the laser provided by the embodiment of the invention comprises a movable supporting table, a laser inspection mechanism, a second mounting seat, a clamping fixing mechanism and a side fixing mechanism, wherein when the device is in actual use, the laser inspection mechanism is controlled to modulate a laser point into line laser with a uniform line segment, the line laser has only one-dimensional divergence angle, the light guide plate is fixed by the clamping fixing mechanism, the plane of the line laser divergence angle is parallel to the surface of the light guide plate and aligned with the saw tooth surface (side surface) of the light guide plate, then the two sides of the light guide plate are fixed by the side fixing mechanism, and the distance between the laser and the saw tooth surface of the light guide plate is adjusted, so that the divergence width of the line laser in one-dimensional divergence angle is equal to the width of the light guide plate.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for inspecting defects of a light guide plate by using laser according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second mounting base, a clamping and fixing mechanism, a side fixing mechanism, and a light guide plate in a device for inspecting defects of a light guide plate by using laser according to an embodiment of the present invention.
Fig. 3 is a schematic top view of a second clamping plate in an apparatus for inspecting defects of a light guide plate by using a laser according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of an extrusion rod in an apparatus for inspecting defects of a light guide plate by using laser according to an embodiment of the present invention.
Fig. 5 shows a detection method of a light guide plate in the prior art.
In the accompanying drawings: 1-fixing a supporting table; 2-a lifting mechanism; 201-a first limit slide; 202-a screw; 203-rotating the screw sleeve; 204-a first spur gear; 205-a second spur gear; 206-driving a motor; 3-a movable supporting table; 4-a laser inspection mechanism; 401-a first mount; 402-line laser emitters; 403-transmitting end; 5-a second mounting seat; 6-clamping and fixing mechanisms; 601-fixing frame; 602-a bi-directional screw; 603-a guide seat; 604-a first clamping plate; 605-a turntable; 606-elastic cord; 607-a fixing member; 7-a side fixing mechanism; 701-connecting rod; 702-a second clamping plate 703-a second limit slide; 8-a light guide plate; 9-a buffer fixing assembly; 901-an elastic extrusion plate; 902-extrusion rod; 903-limiting block; 904-elastic member; 10-fastening bolts; 11-pressing the inclined plane; 100-fixing plates; 200-a light source; 300-reflection light; 400-stage.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 5, in the prior art, by installing the light source 200 on the fixing plate 100 and installing the light guide plate 8 on the carrier 400, the light source 200 faces the side surface of the light guide plate 8, and at this time, the light source 200 emits the reflected light 300, which causes the reflection of the inner wall and the reflection of the carrier at the lower part of the light guide plate, and forms a certain noise to the image background, so that the image recognition will be misjudged.
Referring to fig. 1, a schematic structural diagram of an apparatus for inspecting defects of a light guide plate by using a laser according to an embodiment of the present invention includes:
A movable support table 3;
a laser inspection mechanism 4 mounted on the movable support 3 for providing line laser irradiation;
the second mounting seat 5 is mounted on the movable supporting table 3 and positioned in front of the output end of the laser inspection mechanism 4;
The clamping and fixing mechanism 6 is arranged on the second mounting seat 5 and used for clamping and fixing the upper side and the lower side of the light guide plate 8; and a lateral fixing mechanism 7, which is disposed on the clamping and fixing mechanism 6 and is used for clamping and fixing two sides of the light guide plate 8.
In the embodiment of the invention, when in actual use, the laser inspection mechanism 4 is controlled to modulate the laser point into a line laser with a uniform line segment, the line laser has only one-dimensional divergence angle, the light guide plate 8 is fixed through the clamping and fixing mechanism 6, so that the plane of the divergence angle of the line laser is parallel to the surface of the light guide plate 8 and aligned with the saw tooth surface (side surface) of the light guide plate 8, then the two sides of the light guide plate 8 are fixed through the side fixing mechanism 7, and then the distance between the laser and the saw tooth surface of the light guide plate is adjusted, so that the divergence width of the one-dimensional divergence angle of the line laser is equal to the width of the light guide plate 8, and under the condition, the laser completely enters the light guide plate 8 without overflowing, thereby eliminating image background noise and reducing erroneous judgment.
As shown in fig. 1, as a preferred embodiment of the present invention, the laser inspection mechanism 4 includes:
a first mounting seat 401 fixed on the movable supporting table 3;
a line laser emitter 402 mounted on the first mount 401; and a transmitting end 403 mounted on the line laser transmitter 402, the front of the output end being flush with the center of the clamping fixture 6.
As shown in fig. 2, as a preferred embodiment of the present invention, the clamping and fixing mechanism 6 includes:
The fixing frame 601 is fixed on the second mounting seat 5;
the bidirectional screw 602 is rotatably arranged on the second mounting seat 5, and one end of the bidirectional screw is rotatably connected with the fixing frame 601;
The guide seats 603 are attached to the fixing frame 601, are in threaded connection with the bidirectional screw 602, and are symmetrically distributed;
a first clamping plate 604 fixed on the guide seat 603; and a driving unit disposed on the second mounting seat 5 for driving the bidirectional screw 602 to rotate.
In the embodiment of the present invention, the driving unit drives the bi-directional screw 602 to rotate, the bi-directional screw 602 drives the guide seat 603 to move along the fixing frame 601, and the guide seat 603 drives the first clamping plate 604 to clamp and fix the light guide plate 8.
In one case of the present embodiment, the driving unit includes:
A turntable 605 mounted on one end of the bi-directional screw 602;
An elastic rope 606, one end of which is wound around the bi-directional screw 602; the fixing piece 607 is fixed on the second mounting seat 5 and fixedly connected with one end of the elastic rope 606 far away from the bidirectional screw 602;
the turntable 605 has a restriction attached thereto to restrict rotation thereof.
Specifically, the limiting piece is released, then the bidirectional screw 602 is driven to rotate by the rotary table 605, and the bidirectional screw 602 is wound around the elastic rope 606 during rotation, so that after the light guide plate 8 is inspected later, the bidirectional screw 602 is driven to reset by the elastic force of the elastic rope 606, and the labor and time are saved.
It should be noted that the limiting member may be a limiting block, a fixing pin, or the like.
As shown in fig. 2 and 3, as another preferred embodiment of the present invention, the side fixing mechanism 7 includes:
One end of a connecting rod 701 is hinged on the side surface of the guide seat 603 and is obliquely arranged;
the second clamping plates 702 are positioned at the middle positions of the two guide seats 603, are hinged with one end of the connecting rod 701, which is far away from the guide seats 603, and are respectively positioned at two sides of the light guide plate 8; the second limiting sliding piece 703 is fixed on one side of the second clamping plate 702 away from the light guide plate 8 and slides in a bonding way with the side surface of the first clamping plate 604;
the second clamping plate 702 is provided with an extrusion inclined surface 11 at one side close to the light guide plate 8.
In the embodiment of the present invention, when the guide seat 603 drives the first clamping plate 604 to move, so as to clamp and fix the light guide plate 8, the guide seat 603 drives the connecting rods 701 to move, the two connecting rods 701 drive the second clamping plates 702 to move towards the lowering of the laser inspection mechanism 4, and the two second clamping plates 702 guide and clamp the light guide plate 8 by using the extrusion inclined plane 11.
As shown in fig. 3 and 4, as another preferred embodiment of the present invention, a buffer fixing assembly 9 is disposed in the second clamping plate 702, the buffer fixing assembly 9 is used for reinforcing and fixing the light guide plate 8, and the buffer fixing assembly 9 includes:
the elastic extrusion plate 901 is arranged on the second clamping plate 702 in a sliding manner, and the second clamping plate 702 is provided with a sliding cavity matched with the elastic extrusion plate 901;
The extrusion rod 902 is slidably arranged in the second clamping plate 702, and one end of the extrusion rod is fixed with one side of the elastic extrusion plate 901, which is far away from the light guide plate 8;
The limiting block 903 is fixed at one end of the extrusion rod 902 far away from the elastic extrusion plate 901, is in sliding connection with the second clamping plate 702, and has an outer diameter larger than that of the elastic extrusion plate 901; the elastic piece 904 is sleeved on the extrusion rod 902 and is positioned between the elastic extrusion plate 901 and the inner wall of the sliding cavity;
The elastic pressing plate 901 is connected with a fastening bolt 10 restricting its movement.
In the embodiment of the invention, when the elastic extrusion plate 901 is fixed by the fastening bolt 10 and cannot move in a non-use state, when the elastic extrusion plate is required to be fixed, the fastening bolt 10 is loosened, the elastic extrusion plate 901 is driven to move by the elastic force of the elastic piece 904 when the extrusion inclined surface 11 contacts the light guide plate 8, and the side surface of the light guide plate 8 is further reinforced and fixed by the elastic extrusion plate 901.
It should be noted that the elastic piece 904 may be not only a spring as shown in fig. 3, but also other elastic articles such as an elastic rubber sleeve.
As shown in fig. 1, as another preferred embodiment of the present invention, the apparatus further includes:
The fixed supporting table 1 is arranged below the movable supporting table 3; the lifting mechanism 2 is arranged on the fixed supporting table 1 and is used for adjusting the height of the movable supporting table 3;
The lifting mechanism 2 includes:
the first limit sliding piece 201 is arranged on the fixed supporting table 1 in a sliding manner;
one end of a screw rod 202 is fixed on the first limit sliding piece 201, and the other end of the screw rod extends to the upper part of the fixed supporting table 1 and is fixed with the movable supporting table 3;
the rotary screw sleeve 203 is rotatably arranged on the fixed supporting table 1 and is in threaded connection with the screw 202; and a power assembly, which is disposed on the fixed support table 1 and is used for driving the rotary screw sleeve 203 to rotate.
In one aspect of this embodiment, the power assembly includes:
A driving motor 206 mounted on the fixed support table 1;
A second spur gear 205 mounted on the output end of the drive motor 206; and a first spur gear 204 mounted on the rotary screw sleeve 203 and engaged with and connected to a second spur gear 205.
In the above embodiment of the invention, the movable supporting table 3, the laser inspection mechanism 4, the second mounting seat 5, the clamping and fixing mechanism 6 and the lateral fixing mechanism 7 are provided, when in actual use, the laser inspection mechanism 4 is controlled to modulate the laser point into a line laser with a uniform line segment, the line laser has only one-dimensional divergence angle, the light guide plate 8 is fixed by the clamping and fixing mechanism 6, the plane of the line laser divergence angle is parallel to the surface of the light guide plate 8 and aligned with the serrated surface (side surface) of the light guide plate 8, then the lateral fixing mechanism 7 is used for fixing the two sides of the light guide plate 8, and then the distance between the laser and the serrated surface of the light guide plate is adjusted, so that the one-dimensional divergence angle of the line laser is equal to the width of the light guide plate 8, and under the condition, the laser completely enters the light guide plate 8 and does not overflow, thereby eliminating the background noise of images and reducing erroneous judgment.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. An apparatus for laser inspection of a light guide plate for defects, comprising: a movable support; the laser inspection mechanism is arranged on the movable supporting table and is used for providing line laser irradiation; the second mounting seat is arranged on the movable supporting table and positioned in front of the output end of the laser inspection mechanism; the clamping and fixing mechanism is arranged on the second mounting seat and used for clamping and fixing the upper side and the lower side of the light guide plate; and a side position fixing mechanism arranged on the clamping and fixing mechanism and used for clamping and fixing two sides of the light guide plate, wherein the laser inspection mechanism comprises: the first mounting seat is fixed on the movable supporting table; the line laser transmitter is arranged on the first mounting seat; the transmitting end is arranged on the line laser transmitter, and the front of the output end is flush with the center of the clamping and fixing mechanism;
The clamping and fixing mechanism comprises: the fixing frame is fixed on the second mounting seat; the bidirectional screw rod is rotationally arranged on the second mounting seat, and one end of the bidirectional screw rod is rotationally connected with the fixing frame; the guide seats are attached to the fixing frame, are in threaded connection with the bidirectional screw rod, and are symmetrically distributed; the first clamping plate is fixed on the guide seat; the driving unit is arranged on the second mounting seat and used for driving the bidirectional screw rod to rotate, the bidirectional screw rod drives the guide seat to move along the fixing frame, and the guide seat drives the first clamping plate to clamp and fix the light guide plate;
The driving unit includes: the turntable is arranged at one end of the bidirectional screw rod; one end of the elastic rope is wound on the bidirectional screw rod; the fixing piece is fixed on the second mounting seat and fixedly connected with one end of the elastic rope far away from the bidirectional screw rod; the turnplate is connected with a limiting piece for limiting the rotation of the turnplate;
the side position fixing mechanism comprises: one end of the connecting rod is hinged to the side face of the guide seat and is obliquely arranged; the second clamping plates are positioned at the middle positions of the two guide seats, are hinged with one end of the connecting rod, which is far away from the guide seats, and are respectively positioned at two sides of the light guide plate; the second limiting sliding piece is fixed on one side, far away from the light guide plate, of the second clamping plate and is attached to the side face of the first clamping plate to slide; an extrusion inclined plane is arranged on one side, close to the light guide plate, of the second clamping plate;
a buffer fixing assembly is arranged in the second clamping plate and used for reinforcing and fixing the light guide plate;
The buffering fixing assembly includes: the elastic extrusion plate is arranged on the second clamping plate in a sliding manner, and a sliding cavity matched with the elastic extrusion plate is formed in the second clamping plate; the extrusion rod is arranged in the second clamping plate in a sliding manner, and one end of the extrusion rod is fixed with one side, away from the light guide plate, of the elastic extrusion plate; the limiting block is fixed at one end of the extrusion rod, which is far away from the elastic extrusion plate, and is in sliding connection with the second clamping plate, and the outer diameter of the limiting block is larger than that of the elastic extrusion plate; the elastic piece is sleeved on the extrusion rod and is positioned between the elastic extrusion plate and the inner wall of the sliding cavity; the elastic extrusion plate is connected with a fastening bolt for limiting the movement of the elastic extrusion plate.
2. The apparatus for laser inspection of defects of a light guide plate according to claim 1, further comprising: the fixed supporting table is arranged below the movable supporting table; and the lifting mechanism is arranged on the fixed supporting table and used for adjusting the height of the movable supporting table.
3. The apparatus for laser inspection of defects of a light guide plate according to claim 2, wherein the elevating mechanism comprises: the first limiting sliding piece is arranged on the fixed supporting table in a sliding manner; one end of the screw rod is fixed on the first limit sliding piece, and the other end of the screw rod extends to the upper part of the fixed supporting table and is fixed with the movable supporting table; the rotary screw sleeve is rotationally arranged on the fixed supporting table and is in threaded connection with the screw rod; and the power assembly is arranged on the fixed supporting table and used for driving the rotary screw sleeve to rotate.
4. A device for laser inspection of a light guide plate defect according to claim 3, wherein the power assembly comprises: the driving motor is arranged on the fixed supporting table; the second cylindrical spur gear is arranged at the output end of the driving motor; and the first cylindrical spur gear is arranged on the rotary screw sleeve and is in meshed connection with the second cylindrical spur gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119030.9A CN114441550B (en) | 2022-02-08 | Device for inspecting defects of light guide plate by laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119030.9A CN114441550B (en) | 2022-02-08 | Device for inspecting defects of light guide plate by laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114441550A CN114441550A (en) | 2022-05-06 |
| CN114441550B true CN114441550B (en) | 2024-06-11 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140100127A (en) * | 2013-02-05 | 2014-08-14 | 유진인스텍 주식회사 | Detecting apparatus of defect in rolling state of roll |
| CN206618695U (en) * | 2017-03-15 | 2017-11-07 | 湖南远见视觉科技有限责任公司 | A kind of guide-lighting board checking device |
| CN212586231U (en) * | 2020-06-12 | 2021-02-23 | 深圳一鑫新材料有限公司 | Light-transmitting product detection device and detection equipment |
| CN113281334A (en) * | 2021-04-21 | 2021-08-20 | 南京未拓智能科技有限公司 | Experimental device for industrial vision sensor detection and use method thereof |
| CN214953129U (en) * | 2021-07-19 | 2021-11-30 | 深圳市鑫创想光电有限公司 | Machine vision detection equipment for defects of light guide plate |
| CN215493250U (en) * | 2021-09-10 | 2022-01-11 | 苏州双象光学材料有限公司 | Optical-level light guide plate crystal point observation device |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140100127A (en) * | 2013-02-05 | 2014-08-14 | 유진인스텍 주식회사 | Detecting apparatus of defect in rolling state of roll |
| CN206618695U (en) * | 2017-03-15 | 2017-11-07 | 湖南远见视觉科技有限责任公司 | A kind of guide-lighting board checking device |
| CN212586231U (en) * | 2020-06-12 | 2021-02-23 | 深圳一鑫新材料有限公司 | Light-transmitting product detection device and detection equipment |
| CN113281334A (en) * | 2021-04-21 | 2021-08-20 | 南京未拓智能科技有限公司 | Experimental device for industrial vision sensor detection and use method thereof |
| CN214953129U (en) * | 2021-07-19 | 2021-11-30 | 深圳市鑫创想光电有限公司 | Machine vision detection equipment for defects of light guide plate |
| CN215493250U (en) * | 2021-09-10 | 2022-01-11 | 苏州双象光学材料有限公司 | Optical-level light guide plate crystal point observation device |
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