CN112147161A - Cambered surface detection device and cambered surface detection method - Google Patents
Cambered surface detection device and cambered surface detection method Download PDFInfo
- Publication number
- CN112147161A CN112147161A CN202011053890.4A CN202011053890A CN112147161A CN 112147161 A CN112147161 A CN 112147161A CN 202011053890 A CN202011053890 A CN 202011053890A CN 112147161 A CN112147161 A CN 112147161A
- Authority
- CN
- China
- Prior art keywords
- sub
- arc
- arc surface
- detection device
- light sources
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- 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
- G01N21/8806—Specially adapted optical and illumination features
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
Abstract
The invention provides an arc surface detection device which is used for detecting an arc surface area of a glass cover plate and comprises an arc surface light source, wherein the arc surface light source comprises a plurality of sub light sources which are sequentially arranged along the arc direction of the arc surface light source, the arc surface area of the glass cover plate is divided into a plurality of sub planes which are sequentially arranged along the arc direction of the arc surface light source, the plurality of sub light sources correspond to the plurality of sub planes one by one, and the sub light sources are used for detecting the sub planes. The cambered surface detection device can realize normal imaging of the cambered surface area of the glass cover plate, can achieve a micro bright field imaging effect, and solves the problem that fine concave-convex points cannot be imaged. Correspondingly, the invention further provides a cambered surface detection method.
Description
Technical Field
The invention relates to the field of optical detection, in particular to a cambered surface detection device and a cambered surface detection method.
Background
Due to the rapid development of machine vision technology, more and more industries have started to select machine vision technology to replace manual work for product quality detection.
The machine vision is applied to the detection of the mobile phone glass cover plate, and the current detection technology is mature for the imaging of the plane area of a product; for the cambered surface area, due to the diffusion effect of the cambered surface on light, the cambered surface cannot be normally imaged under the condition of a general polishing mode, so that the detection of the cambered surface area is a great detection difficulty in machine vision.
Disclosure of Invention
The invention aims to provide a cambered surface detection device which can realize normal imaging of a cambered surface area of a glass cover plate.
The invention also aims to provide an arc surface detection method which is applied to the arc surface detection device and can realize normal imaging of the arc surface area of the glass cover plate.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the invention provides an arc surface detection device, which is used for detecting an arc surface area of a glass cover plate and comprises an arc surface light source, wherein the arc surface light source comprises a plurality of sub light sources which are sequentially arranged along the arc direction of the arc surface light source, the arc surface area of the glass cover plate is divided into a plurality of sub planes which are sequentially arranged along the arc direction of the arc surface light source, the plurality of sub light sources correspond to the plurality of sub planes one by one, and the sub light sources are used for detecting the sub planes.
Preferably, each of the sub-light sources is controlled to emit light independently of each other.
Preferably, the cambered surface light source is in a 90-degree arc shape and can be used for detecting a cambered surface area with a radian of 0-90 degrees.
Preferably, the cambered surface detection device is internally kept away from one end of the cambered surface region of the glass cover plate is sequentially provided with a plurality of mounting grooves along the arc direction, the mounting grooves are in one-to-one correspondence with the sub-light sources, the sub-light sources are matched with the mounting grooves in shape, and the sub-light sources are arranged in the mounting grooves.
Preferably, the sub-light source is an LED lamp bead.
Preferably, the sub-light sources corresponding to each other are disposed non-parallel to the sub-plane.
Furthermore, a preset included angle is formed between the sub-light sources corresponding to each other and the sub-plane, so that a micro bright field formed by the residual light at the edge of the sub-light sources can reach the sub-plane for imaging.
Furthermore, the cambered surface detection device corresponds to the mounting groove and is provided with a diffusion film along the arc direction on the surface of a light emitting area at one end close to the cambered surface area of the glass cover plate, and the light emitted by the sub-light sources passes through the diffusion film to reach the sub-planes.
Specifically, the diffusion barrier includes along incident layer, PET base plate and the diffusion barrier that diffusion barrier thickness direction set gradually, the light that the sub light source sent passes through in proper order the incident layer, the PET base plate reachs behind the diffusion barrier the sub-plane, so that the light that the sub light source sent can evenly shine on the sub-plane.
Correspondingly, the invention also provides an arc surface detection method which is applied to the arc surface detection device in any technical scheme and is used for detecting the arc surface area of the glass cover plate, and the method comprises the following steps:
setting the position relation between the cambered surface detection device and the cambered surface area of the glass cover plate;
determining a one-to-one correspondence relationship between the plurality of sub light sources and the plurality of sub planes;
and controlling the size of a light emitting area of the cambered surface detection device according to the corresponding relation so as to carry out overall or partial detection on the cambered surface area of the glass cover plate.
Compared with the prior art, the scheme of the invention has the following advantages:
according to the cambered surface detection device, the cambered surface light source is arranged to comprise a plurality of sub light sources which are sequentially arranged along the cambered surface direction, and each sub light source corresponds to a plurality of sub planes which are sequentially arranged along the cambered surface direction of the glass cover plate in the cambered surface area one by one. Therefore, normal imaging can be respectively realized on each sub-plane of the cambered surface area of the glass cover plate, so that normal imaging on the cambered surface area of the glass cover plate is realized, and the purpose of detecting the defects of the cambered surface area of the glass cover plate is realized.
The cambered surface detection method is applied to the cambered surface detection device, and comprises the following steps: setting the position relation between the cambered surface detection device and the cambered surface area of the glass cover plate; determining a one-to-one correspondence relationship between the plurality of sub light sources and the plurality of sub planes; and controlling the size of a light emitting area of the cambered surface detection device according to the corresponding relation so as to carry out overall or partial detection on the cambered surface area of the glass cover plate. The cambered surface detection method can realize normal imaging of each sub-plane of the cambered surface area of the glass cover plate respectively so as to realize normal imaging of the cambered surface area of the glass cover plate and further realize the purpose of detecting the defects of the cambered surface area of the glass cover plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an arc surface detection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the cambered surface detection device in FIG. 1, as viewed from a side;
FIG. 3 is a schematic structural view of a glass cover plate;
FIG. 4 is an optical schematic of a slightly bright field;
FIG. 5 is a schematic structural diagram of a diffusion film of the cambered surface detection device in FIG. 1;
fig. 6 is a flowchart of an arc surface detection method according to an embodiment of the present invention.
Reference numerals:
a cambered surface detecting device 100;
a sub-light source 11, a mounting groove 12, a diffusion film 13;
an incident layer 131, a PET substrate 132, a diffusion layer 133;
a glass substrate 200;
cambered surface area 21, and flat surface area 22.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.
The following disclosure provides many different embodiments or examples for implementing different structures or different functions of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Referring to fig. 1 to 5, an embodiment of the invention provides an arc surface detection apparatus 100. The arc surface detection device 100 is used for detecting an arc surface area 21 of the glass cover plate 200. The glass cover plate 200 is mainly used as a glass layer on the surface of a touch screen of an electronic product such as a mobile phone and a tablet computer, and mainly comprises two parts, namely an arc surface area 21 and a plane area 21. Before the electronic product is manufactured, the glass cover plate 200 needs to be detected, and if the defects of uneven density, concave and convex points and the like exist, the defects can be identified through detection, so that the problem that the electronic product cannot normally display is solved. In general, the imaging mechanisms of the arc area 21 and the flat area 22 of the glass cover plate 200 are different, so that different detection devices are required to detect the two parts respectively. The arc surface detection device 100 provided by the embodiment of the invention is used for detecting the arc surface area 21 of the glass cover plate 200.
Referring to fig. 1 to fig. 3, an arc surface detection apparatus 100 provided in the embodiment of the present invention includes an arc surface light source. Due to the diffusion effect of the cambered surface area 21 of the glass cover plate 200 on light, normal imaging cannot be performed on the cambered surface area 21 in a general polishing mode. In order to solve the diffusion effect of the arc surface region 21 of the glass cover plate 200 on light, the arc surface region 21 needs to be divided into a plurality of sequentially arranged planar regions along the arc direction, so that the arc surface region 21 can be seen as being composed of a plurality of sub-planes. Based on this, the arc light source is configured to include a plurality of sub light sources 11 arranged in sequence along the arc direction of the arc light source, and the plurality of sub light sources 11 correspond to the plurality of sub planes one to one, that is, one sub light source 11 matches one sub plane.
Thus, the light emitted by one of the sub-light sources 11 can reach the matching sub-plane, so that the sub-plane can be imaged normally. Furthermore, each sub-plane can be normally imaged through the corresponding relationship between each sub-light source 1 and each sub-plane, so that the normal imaging of the arc surface area 21 can be realized, and the purpose of detecting whether the arc surface area 21 has defects is achieved, if the arc surface area 21 has defects, the defects of the arc surface area 21 can be accurately positioned on one or more sub-planes according to the one-to-one corresponding relationship between the sub-light sources 11 and the sub-planes, and the detection accuracy is improved.
With continued reference to fig. 1, in a preferred embodiment, each of the sub-light sources 11 is controlled to emit light independently, i.e. the light emitting state of one of the sub-light sources 11 is not affected by the light emitting state of any other one of the sub-light sources 11. Based on the light emitting mode, when the radian of the arc surface area 21 to be detected is smaller than that of the arc surface light source, or when only a part of the area on the arc surface area 21 needs to be detected, only part of the sub light sources 11 on the arc surface light source need to be controlled to emit light, and the purpose of detection can be achieved. Therefore, on the one hand, the convenience of detection can be improved, and on the other hand, the energy consumption of the arc surface detection device 100 can be reduced.
In a preferred embodiment, the arc light source is in the shape of a 90 ° arc, and the arc detection device 100 is also designed to have a similar shape, and can be used to detect an arc area with an arc of 0 to 90 °. Because the radian of the arc surface area 21 of most of the glass cover plates 200 is not greater than 90 °, the glass cover plates 200 can meet the detection requirement of the arc surface area 21 of most of the glass cover plates 200. Of course, the radian of the arc-shaped light source is not limited to this, and may be adjusted according to the detection object as long as the arc-shaped area 21 of the glass cover plate 200 can be detected comprehensively.
Similarly, for most of the arc regions 21 of the glass cover 200, the dimensions of the arc detection apparatus 100, such as the length L, the height h, the width w, and the light emitting region width d, are generally fixed or respectively maintained within a relatively stable range. Of course, for a specific size of the glass cover plate 200, a corresponding size of the arc detection device 100 may be designed.
In a preferred embodiment, a plurality of installation grooves 12 are sequentially arranged in an arc direction at one end of the interior of the arc surface detection device 100, which is far away from the arc surface area 21 of the glass cover plate 100, and the shape of the sub-light sources 11 is adapted to the shape of the installation grooves 12, so that one sub-light source 11 can be installed in each installation groove 12. Therefore, by providing the mounting groove 12 and disposing the sub light source 11 in the mounting groove 1, the stability of the sub light source 11 is enhanced.
In a preferred embodiment, the sub-light sources 11 are LED light beads.
Referring to fig. 4, there may be some fine concave-convex points in the arc surface region 21, and there are three light fields, i.e., bright field, dark field, etc., in the light emitted from the light source. In particular, fine concave and convex points are difficult to image under bright field or dark field conditions. And because the light of the micro bright field is positioned between the bright field and the dark field, half of the concave-convex substances can be in a bright field form, and the other half of the concave-convex substances can be in a dark field form, so that the concave-convex substances are in a three-dimensional sense, and the micro bright field has a good effect on imaging of the concave-convex substances. Therefore, the slightly bright field can be clearly imaged for some fine concave-convex points in the cambered surface area 21.
Based on the above limitation, in a preferred embodiment, a matched sub-light source 11 and a sub-plane are arranged in a non-parallel manner. Furthermore, a preset included angle is formed between one of the matched sub-light sources 11 and one of the sub-planes, so that a micro bright field formed by residual light at the edge of the sub-light source 11 can reach the sub-planes, and clear imaging is realized. Because the arc surface detection device 100 and the arc surface region 21 both have a radian, preset included angles between the sub-light sources 11 at different positions and the sub-planes corresponding to the sub-light sources may be different as long as it is satisfied that the residual light at the edges of the sub-light sources 11 can reach the corresponding sub-planes.
Referring to fig. 1 and 5, in a preferred embodiment, the arc surface detection device 100 corresponds to the mounting groove 12 and a diffusion film 13 is disposed along an arc direction on a surface of a light emitting region near one end of the arc surface region 21 of the glass cover 200, and all light emitted by the sub-light sources 11 reaches the plurality of sub-planes through the diffusion film 13.
Specifically, the diffusion film 13 includes an incident layer 131, a PET substrate 132, and a diffusion layer 133 sequentially arranged along the thickness direction of the diffusion film 13, and the light emitted from the sub-light sources 11 sequentially passes through the incident layer 131, the PET substrate 132, and the diffusion layer 133 and then reaches the sub-plane.
Without the diffusion film 13, the residual light emitted from the edge of the sub-light sources 11 cannot be guaranteed to be uniformly irradiated onto the sub-plane. And through setting up diffusion barrier 13, it can be with gathering in light of a department and diffusing all around to make every residual light that the edge of sub light source 11 sent can be even shine on the sub-plane that corresponds, effectively avoided appearing the uneven problem of luminance.
In summary, the arc surface detection device 100 provided by the embodiment of the invention not only solves the problem that the arc surface region of the glass cover plate cannot be normally imaged, but also can achieve the imaging effect of a bright field, and solves the problem that fine concave-convex points cannot be imaged.
Referring to fig. 6, the present invention further provides a method for detecting an arc surface, which is applied to the arc surface detecting apparatus 100 for detecting the arc surface area 21 of the glass cover plate 200. The specific steps of the arc detection method will be described in detail below.
Step S1: the position relationship between the arc surface detection device 100 and the arc surface area 21 of the glass cover plate 200 is set.
Since the curvature of the arc surface region 21 of different glass cover plates 200 may be different, and the curvature of the arc surface region 21 of the glass cover plate 200 may not be consistent with the curvature of the arc surface detection device 100, the position relationship between the arc surface detection device 100 and the arc surface region 21 of the glass cover plate 200 needs to be set before detection. Generally, the glass cover plate 200 is fixed, and then the arc detection device 100 is moved to align the arc light source with the arc area 21. Alternatively, the position of the arc detection device 100 is kept unchanged, and the arc area 21 of the glass cover plate 200 is aligned with the arc light source by moving the glass cover plate.
Step S2: a one-to-one correspondence of a plurality of said sub-light sources 11 to a plurality of said sub-planes is determined.
After the arc area 21 is aligned with the arc light source, further calibration is performed. Because the arc surface region 21 is divided into a plurality of sub-planes sequentially arranged along the arc direction, and the arc surface light source includes a plurality of sub-light sources 11 sequentially arranged along the arc direction, fine adjustment is required, so that one sub-light source 11 corresponds to one sub-plane. Therefore, the one-to-one correspondence relationship between the plurality of sub light sources 11 and the plurality of sub planes is realized, and the normal imaging of each sub plane is realized, so that the purpose of normal imaging of the arc surface area 21 is achieved.
Step S3: and controlling the size of a light-emitting area of the arc surface detection device 100 according to the corresponding relation so as to perform overall or partial detection on the arc surface area 21 of the glass cover plate 200.
The size of the light emitting area of the arc surface detection device 100 is related to the number and the distribution position of the sub light sources 11 emitting light. When all the sub-light sources 11 emit light, all the sub-planes can be detected, that is, the whole arc surface area 21 can be detected; when each of the sub-light sources 11 is independently controlled to emit light, if all the sub-light sources 11 are controlled to emit light, all the sub-planes can be detected, and if one or a part of the sub-light sources 11 are controlled to emit light, one or a part of the sub-planes can be detected, so that the detection accuracy can be improved.
Therefore, by using the cambered surface detection method provided by the embodiment of the invention, normal imaging of the cambered surface region 21 of the glass cover plate 200 can be realized, so that the purpose of detecting the defect of the cambered surface region 21 is realized.
It should be noted that, in the description of the present invention, if there is an orientation or positional relationship indicated by the terms "upper", "lower", etc. based on the orientation or positional relationship shown in the drawings, the description is only for the convenience of simplifying the present invention, and the indication or implication that the indicated device or element must have a specific orientation, configuration and operation is not to be interpreted as limiting the present invention.
In the description herein, reference to the terms "one embodiment," "some embodiments," "preferred embodiments," "an example" or the like, if any, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, characteristics, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of various embodiments or examples described in this specification can be combined or combined by those skilled in the art without contradiction.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an cambered surface detection device for detect cambered surface region (21) of glass apron (200), its characterized in that, including an cambered surface light source, the cambered surface light source includes a plurality of sub-light sources (11) of arranging in proper order along its arc, the cambered surface region of glass apron is divided into a plurality of sub-planes of arranging in proper order along its arc, and is a plurality of sub-light sources (11) and a plurality of sub-plane one-to-one, sub-light source (11) are used for detecting the sub-plane.
2. Arc surface detection device according to claim 1, characterized in that each of said sub-light sources (11) is controlled to emit light independently of each other.
3. The arc surface detection device of claim 1, wherein the arc surface light source is in a shape of a 90 ° arc and can be used for detecting an arc surface region with an arc degree of 0 to 90 °.
4. The arc surface detection device according to any one of claims 1 to 3, wherein a plurality of installation grooves (12) are sequentially arranged in an arc direction at one end of the arc surface area (21) far away from the glass cover plate (200) in the arc surface detection device (100), the installation grooves (12) are in one-to-one correspondence with the sub light sources (11), the sub light sources (11) are matched with the installation grooves (12) in shape, and the sub light sources (11) are arranged in the installation grooves (12).
5. The arc surface detection device according to claim 4, wherein the sub-light source (11) is an LED lamp bead.
6. Cambered surface detecting device according to claim 4, characterized in that the sub-light sources (11) corresponding to each other are arranged non-parallel to the sub-plane.
7. The arc surface detection device according to claim 6, wherein the sub-light sources (11) corresponding to each other form a predetermined included angle with the sub-plane, so that a bright field formed by the residual light at the edge of the sub-light sources (11) can reach the sub-plane for imaging.
8. The arc surface detection device according to claim 4, wherein the arc surface detection device (100) corresponds to the installation groove (12) and a diffusion film (13) is arranged on the surface of a light emitting region close to one end of the arc surface region (21) of the glass cover plate (200) along the arc direction, and light emitted by the sub light sources (11) passes through the diffusion film (13) and reaches the sub planes.
9. The arc surface detection device according to claim 8, wherein the diffuser film (13) comprises an incident layer (131), a PET substrate (132) and a diffuser layer (133) sequentially arranged along the thickness direction of the diffuser film (13), and the light emitted by the sub-light sources (11) sequentially passes through the incident layer (131), the PET substrate (132) and the diffuser layer (133) and then reaches the sub-plane, so that the light emitted by the sub-light sources (11) can be uniformly irradiated onto the sub-plane.
10. An arc surface detection method applied to the arc surface detection device (100) of any one of claims 1 to 9 for detecting an arc surface region (21) of a glass cover plate (200), comprising:
setting the position relation between the cambered surface detection device (100) and a cambered surface area (21) of the glass cover plate (200);
determining a one-to-one correspondence of a plurality of said sub-light sources (11) to a plurality of said sub-planes;
and controlling the size of a light-emitting area of the cambered surface detection device (100) according to the corresponding relation so as to carry out overall or partial detection on the cambered surface area (21) of the glass cover plate (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053890.4A CN112147161B (en) | 2020-09-29 | 2020-09-29 | Cambered surface detection device and cambered surface detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053890.4A CN112147161B (en) | 2020-09-29 | 2020-09-29 | Cambered surface detection device and cambered surface detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112147161A true CN112147161A (en) | 2020-12-29 |
| CN112147161B CN112147161B (en) | 2021-10-29 |
Family
ID=73894439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011053890.4A Active CN112147161B (en) | 2020-09-29 | 2020-09-29 | Cambered surface detection device and cambered surface detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112147161B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8242477B2 (en) * | 2007-01-12 | 2012-08-14 | Synergx Technologies Inc. | Bright field and dark field channels, used for automotive glass inspection systems |
| US20120287072A1 (en) * | 1995-06-29 | 2012-11-15 | Pryor Timothy R | Method for providing human input to a computer |
| CN103257392A (en) * | 2010-11-23 | 2013-08-21 | 吴明番 | Light guiding body covered with diffusion barrier layer |
| CN203453801U (en) * | 2013-03-19 | 2014-02-26 | 上海广中电子电器配件有限公司 | Curved surface lamp |
| CN107328789A (en) * | 2017-06-23 | 2017-11-07 | 宁波韵升智能技术有限公司 | A kind of arc surface and surface defect detecting system |
| CN108802873A (en) * | 2018-06-06 | 2018-11-13 | 曹立军 | A kind of diffusion barrier and preparation method thereof |
| CN109001937A (en) * | 2018-01-23 | 2018-12-14 | 苏州东山新材料科技有限公司 | A kind of economical direct type backlight assembly |
| CN109387510A (en) * | 2017-08-10 | 2019-02-26 | 欧姆龙株式会社 | Image processing system, device for assisting in setting and computer readable recording medium |
| CN209028015U (en) * | 2018-10-29 | 2019-06-25 | 合刃科技（武汉）有限公司 | A kind of detection device of line scanning imagery |
| KR20190114872A (en) * | 2018-03-30 | 2019-10-10 | 케이와 인코포레이티드 | Light-diffusing laminate, backlight unit, and liquid crystal display device |
| CN210005461U (en) * | 2019-05-27 | 2020-01-31 | 征图新视(江苏)科技股份有限公司 | Online detection illumination light source for appearance defects of glass with cambered surface |
| CN210920988U (en) * | 2019-12-25 | 2020-07-03 | 东莞华明灯具有限公司 | Indoor lighting lamp |
| CN111399287A (en) * | 2020-05-28 | 2020-07-10 | 马鞍山东毅新材料科技有限公司 | Arc-shaped diffusion film for L CD backlight source and preparation method thereof |
-
2020
- 2020-09-29 CN CN202011053890.4A patent/CN112147161B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120287072A1 (en) * | 1995-06-29 | 2012-11-15 | Pryor Timothy R | Method for providing human input to a computer |
| US8242477B2 (en) * | 2007-01-12 | 2012-08-14 | Synergx Technologies Inc. | Bright field and dark field channels, used for automotive glass inspection systems |
| CN103257392A (en) * | 2010-11-23 | 2013-08-21 | 吴明番 | Light guiding body covered with diffusion barrier layer |
| CN203453801U (en) * | 2013-03-19 | 2014-02-26 | 上海广中电子电器配件有限公司 | Curved surface lamp |
| CN107328789A (en) * | 2017-06-23 | 2017-11-07 | 宁波韵升智能技术有限公司 | A kind of arc surface and surface defect detecting system |
| CN109387510A (en) * | 2017-08-10 | 2019-02-26 | 欧姆龙株式会社 | Image processing system, device for assisting in setting and computer readable recording medium |
| CN109001937A (en) * | 2018-01-23 | 2018-12-14 | 苏州东山新材料科技有限公司 | A kind of economical direct type backlight assembly |
| KR20190114872A (en) * | 2018-03-30 | 2019-10-10 | 케이와 인코포레이티드 | Light-diffusing laminate, backlight unit, and liquid crystal display device |
| CN108802873A (en) * | 2018-06-06 | 2018-11-13 | 曹立军 | A kind of diffusion barrier and preparation method thereof |
| CN209028015U (en) * | 2018-10-29 | 2019-06-25 | 合刃科技（武汉）有限公司 | A kind of detection device of line scanning imagery |
| CN210005461U (en) * | 2019-05-27 | 2020-01-31 | 征图新视(江苏)科技股份有限公司 | Online detection illumination light source for appearance defects of glass with cambered surface |
| CN210920988U (en) * | 2019-12-25 | 2020-07-03 | 东莞华明灯具有限公司 | Indoor lighting lamp |
| CN111399287A (en) * | 2020-05-28 | 2020-07-10 | 马鞍山东毅新材料科技有限公司 | Arc-shaped diffusion film for L CD backlight source and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| KWANG-SEONG CHOI, ET AL.: ""Interconnection Process using Laser and Hybrid Underfill for LED Array Module on PET Substrate "", 《2018 IEEE 68TH ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE》 * |
| 朱继承: ""掺杂型微结构光扩散膜的研究"", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112147161B (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110441982B (en) | Screen housing and image display system | |
| CN102822867B (en) | Optical defect in detection transparent substance | |
| US9864122B2 (en) | Diffusing of direct backlight for a display panel | |
| CN100402974C (en) | Inspection apparatus and inspection method | |
| JP4575202B2 (en) | Defect inspection method and defect inspection apparatus for transparent plate-like body | |
| JP2010118240A (en) | Optical member, backlight unit, and display device | |
| CN104570470A (en) | Display device | |
| CN112147161B (en) | Cambered surface detection device and cambered surface detection method | |
| CN104763937A (en) | Backlight backing plate, backlight module and display device | |
| CN109342443A (en) | Vision-based detection backlight and its vision inspection apparatus | |
| KR101605000B1 (en) | Apparatus for inspecting substrate | |
| WO2020007233A1 (en) | Design method for composite membrane and composite membrane | |
| CN209296575U (en) | Detect mould group and detection device | |
| JPH11108844A (en) | Light source apparatus for inspection of mirror face material and transmission material | |
| JP2008033217A (en) | Reflection type screen and front projection type display system | |
| KR101795792B1 (en) | light distribution testing machine for head lamp of car | |
| CN209311346U (en) | Vision-based detection backlight and its vision inspection apparatus | |
| KR101379817B1 (en) | Apparatus for inspecting back light assembly and apparatus for inspecting display device | |
| CN207096624U (en) | A kind of backlight tool for display screen detection | |
| KR101157081B1 (en) | Illumination device and substrate inspection apparatus including the same | |
| CN112683493A (en) | Light-transmitting device detection system | |
| CN219608735U (en) | Detection light source and detection device | |
| CN109426012A (en) | A kind of backlight jig for display screen detection | |
| CN117041712B (en) | Light source integrated camera and detection method | |
| TWI582444B (en) | Multi - unit Test Probe Card with Illumination Adjustment Mechanism and Its Illumination Adjustment Method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215163 rooms 101, 102, 901 and 902, floor 1, building 11, 198 Jialingjiang Road, high tech Zone, Suzhou City, Jiangsu Province Applicant after: Gaoshi Technology (Suzhou) Co.,Ltd. Address before: 516000 West Side of the 4th Floor of CD Building, No. 2 South Road, Huatai Road, Huiao Avenue, Huizhou City, Guangdong Province Applicant before: HUIZHOU GOVION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215129 Rooms 101, 102, 901, 902, Floor 9, Building 11, No. 198, Jialing River Road, High tech Zone, Suzhou City, Jiangsu Province Patentee after: Gaoshi Technology (Suzhou) Co.,Ltd. Address before: 215163 rooms 101, 102, 901 and 902, floor 1, building 11, 198 Jialingjiang Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: Gaoshi Technology (Suzhou) Co.,Ltd. |