CN113390890A - Electronic component outward appearance detection device based on multi-angle light path illumination - Google Patents
Electronic component outward appearance detection device based on multi-angle light path illumination Download PDFInfo
- Publication number
- CN113390890A CN113390890A CN202110678859.8A CN202110678859A CN113390890A CN 113390890 A CN113390890 A CN 113390890A CN 202110678859 A CN202110678859 A CN 202110678859A CN 113390890 A CN113390890 A CN 113390890A
- Authority
- CN
- China
- Prior art keywords
- included angle
- angle
- components
- blue light
- red light
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 238000005286 illumination Methods 0.000 title claims abstract description 43
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 21
- 238000000429 assembly Methods 0.000 claims description 21
- 230000007547 defect Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007373 indentation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
-
- 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
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8845—Multiple wavelengths of illumination or detection
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
本发明提供一种基于多角度光路照明的电子元件外观检测装置。一种基于多角度光路照明的电子元件外观检测装置，包括图像采集单元、照明单元和检测平台，图像采集单元和照明单元设于检测平台上方，所述照明单元包括若干照射方向与检测平台中轴线呈夹角α的蓝光组件和若干照射方向与检测平台中轴线呈夹角β的红光组件，所述夹角α小于夹角β。本发明通过特定特征照射角度组合的蓝光组件和红光组件，使得光路易于呈现电子元件尤其是被动元件的压痕、爆裂、露磁、划伤等外观缺陷信息，能够兼容检验不同规格的被动元件，过滤干扰信息，突出目标信息，提高电子元件尤其是被动元件表面细微缺陷的呈现效果。
The invention provides an electronic component appearance detection device based on multi-angle light path illumination. An electronic component appearance detection device based on multi-angle light path lighting, comprising an image acquisition unit, an illumination unit and a detection platform, the image acquisition unit and the illumination unit are arranged above the detection platform, and the illumination unit includes a plurality of irradiation directions and the central axis of the detection platform A blue light component with an included angle α and a number of red light components with an included angle β between the irradiation direction and the central axis of the detection platform, and the included angle α is smaller than the included angle β. Through the combination of blue light components and red light components with specific characteristic irradiation angles, the present invention makes the optical path easy to present the appearance defect information of electronic components, especially passive components, such as indentation, burst, magnetic exposure, scratches, etc., and can be compatible with passive components of different specifications. , filter interference information, highlight target information, and improve the presentation effect of subtle defects on the surface of electronic components, especially passive components.
Description
Technical Field
The invention relates to an electronic component appearance detection device, in particular to an electronic component appearance detection device based on multi-angle light path illumination.
Background
With the development of science and technology, electronic components are miniaturized, the detection of the appearance quality of the electronic components in production becomes more and more important, and the visual detection by using an industrial camera as an image acquisition unit and an illuminating lamp as an illuminating unit is an important means for the appearance detection of the electronic components.
In the detection process of electronic components, especially passive components (such as resistors, capacitors, inductors, etc.), the illumination effect of the lighting unit has a great influence on the detection accuracy. Especially for the appearance detection of the multilayer ceramic capacitor (MLCC), the prior art generally adopts a combination of multi-color illumination, and more uses a color combination of white light, red light and blue light, but the illumination angle and the light focusing point are lack of control, the light path is relatively distracted, and the purpose is not strong. The existing illumination system cannot be compatible with the detected materials with multiple capacitance values, can not well present the surface defects of the detected materials, has poor presentation effect on important tiny defects, and is very easy to cause the detection missing phenomenon in the detection process.
The chinese patent application No. 201410809877.5 discloses an appearance inspection device for a printed circuit board, which comprises an upper computer, an image acquisition device, a color illumination system and an inspection platform for placing the printed circuit board, wherein a red, green and blue illumination lamp is used to illuminate a welding surface of the printed circuit board from above, and the upper computer judges the welding state of the printed circuit board according to the color change, namely the hue shape, of the welding surface of the printed circuit board at different angles. This detection device adopts colored highlight mode to detect, has improved detection accuracy and detection efficiency, but this technical scheme mainly designs lighting system to printed circuit board, and lighting scheme is insensitive to the surface defect of the passive component that the volume is littleer, is not suitable for the outward appearance detection of passive component, and in addition, this detection device does not solve the problem of setting up to illumination angle and light focus point, does not solve the problem that compatible inspection different specifications received the material and how to improve the detection accuracy of slight defect yet.
Disclosure of Invention
The invention aims to provide an electronic component appearance detection device based on multi-angle light path illumination, which can compatibly detect passive components with different specifications, filter interference information, highlight target information, improve the presentation effect of fine defects on the surfaces of electronic components, particularly passive components, and solve the problems in the background.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides an electronic component outward appearance detection device based on multi-angle light path illumination, includes image acquisition unit, lighting unit and testing platform, and the testing platform top is located to image acquisition unit and lighting unit, lighting unit includes that a plurality of directions of shining are blue light subassembly and a plurality of directions of shining that are contained angle alpha and testing platform axis are the ruddiness subassembly of contained angle beta, contained angle alpha is less than contained angle beta.
Preferably, the lighting unit further comprises a lighting shell, two ends of the lighting shell are provided with openings, a stepped hole is formed in the lighting shell, the plurality of blue light assemblies and the plurality of red light assemblies are arranged on the inner wall surface of the stepped hole in a stepped stacking mode, the plurality of blue light assemblies are adjacent to the openings at the top end of the lighting shell, the plurality of red light assemblies are adjacent to the openings at the bottom end of the lighting shell, and the openings at the bottom end of the lighting shell face the detection platform.
Preferably, the blue light assembly and the red light assembly are both annular bodies, the blue light assembly comprises a plurality of annularly arranged blue light LED light sources, the red light assembly comprises a plurality of annularly arranged red light LED light sources, the plurality of blue light assemblies and the plurality of red light assemblies are arranged in a stacked manner, and the caliber of the annular body on the upper layer is not larger than that of the annular body on the adjacent lower layer.
Preferably, the number of the blue light assemblies is three, and the irradiation direction of each blue light assembly forms an included angle alpha with the central axis of the detection platform respectively1Angle alpha2And an included angle alpha3。
Preferably, the included angle α1The value range of (a) is 23-27 DEG, and the included angle alpha is2Has a value range of 28-32 DEG, and the included angle alpha3The range of the angle is 33-37 degrees.
Preferably, the included angle α1Is 25 deg., said angle alpha is2Is 30 deg., said angle alpha3Is 35 deg.
Preferably, the number of the red light components is two, and the irradiation direction of each red light component forms an included angle beta with the central axis of the detection platform respectively1And angle of inclusion beta2。
Preferably, the included angle β1The value range of (1) is 53-57 DEG, and the included angle beta2The range of values is 58-62 degrees.
Preferably, the included angle β1Is 55 deg. and the included angle beta2Is 60 deg.
Preferably, the number of the blue light assemblies 21 is three, the irradiation directions of the three blue light assemblies 21 respectively form included angles of 25 degrees, 30 degrees and 35 degrees with the central axis of the detection platform 3, the number of the red light assemblies 22 is two, and the irradiation directions of the two red light assemblies 22 respectively form included angles of 55 degrees and 60 degrees with the central axis of the detection platform 3.
The invention has the beneficial effects that:
according to the electronic component appearance detection device based on multi-angle light path illumination, the blue light component and the red light component which are combined at specific characteristic illumination angles are adopted, so that the light path is easy to present appearance defect information such as indentation, burst, magnetism exposure, scratch and the like of an electronic component, particularly a passive component, the passive component with different specifications can be compatibly inspected, interference information is filtered, target information is highlighted, and the presentation effect of fine defects on the surface of the electronic component, particularly the passive component, is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a blue light module and a red light module in embodiment 2 of the present invention.
In the figure: 1. image acquisition unit, 2, lighting unit, 3, testing platform, 21, blue light subassembly, 22, ruddiness subassembly, 23, illumination casing, 211, blue light LED light source, 221, red light LED light source, 231, shoulder hole.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Example 1:
the electronic component appearance detection device based on multi-angle light path illumination as shown in fig. 1 comprises an image acquisition unit 1, an illumination unit 2 and a detection platform 3, wherein the image acquisition unit 1 and the illumination unit 2 are arranged above the detection platform 3.
The image acquisition unit 1 is used for converting an optical image of the detected object under the irradiation of the light of the illumination unit 2 into an analog/digital image, and in the embodiment, the image acquisition unit 1 is a CCD industrial camera.
The lighting unit 2 comprises a plurality of blue light assemblies 21 with included angles alpha between the irradiation directions and the central axis of the detection platform 3 and a plurality of red light assemblies 22 with included angles beta between the irradiation directions and the central axis of the detection platform 3, and the included angles alpha are smaller than the included angles beta.
The blue light source irradiates blue light with a wavelength range of 430-480 nm. The red light source irradiates red light, and the wavelength range of the red light is 600-720 nanometers.
Through above-mentioned technical scheme, consider passive component surface protection layer to the absorption effect and the reflection of light effect of light, adopt the easy scattered blue light to shine the position that is examined the piece and is inclined to the middle part and catch defect information, adopt red light to shine the external profile information that presents that is examined the piece and is inclined to the outside, with the light path of the different angles of blue light subassembly and the red light subassembly transmission of different angles, when light reachs examined the piece surface, if examined the piece surface is level and smooth, the information that corresponds the light path then can not be caught by CCD industrial camera, if examined the piece surface has defective disconnected section, then can be caught by CCD industrial camera with the disconnected section information that the light path angle is surplus, reach the effect of filtering interference information, outstanding target information.
Example 2:
an electronic component appearance detection device based on multi-angle light path illumination as shown in fig. 2 comprises an image acquisition unit 1, an illumination unit 2 and a detection platform 3, wherein the image acquisition unit 1 and the illumination unit 2 are arranged above the detection platform 3.
The image acquisition unit 1 is used for converting an optical image of the detected object under the irradiation of the light of the illumination unit 2 into an analog/digital image, and in the embodiment, the image acquisition unit 1 is a CCD industrial camera.
The lighting unit 2 comprises a plurality of blue light assemblies 21 with the irradiation directions forming included angles alpha with the central axis of the detection platform 3 and a plurality of red light assemblies 22 with the irradiation directions forming included angles beta with the central axis of the detection platform 3, and the included angles alpha are smaller than the included angles beta.
The lighting unit further comprises a lighting shell 23, two ends of the lighting shell 23 are opened, a stepped hole 231 is formed in the lighting shell 23, the plurality of blue light assemblies 21 and the plurality of red light assemblies 22 are stacked on the inner wall surface of the stepped hole 231 in a stepped mode, the blue light assemblies 21 are adjacent to openings at the top end of the lighting shell 23, the red light assemblies 22 are adjacent to openings at the bottom end of the lighting shell 23, and the openings at the bottom end of the lighting shell 23 face the detection platform 3.
As shown in fig. 3, the blue light module 21 and the red light module 22 are both ring-shaped bodies, the blue light module 21 includes a plurality of annularly arranged blue light LED light sources 211, and the red light module 22 includes a plurality of annularly arranged red light LED light sources 221. In the ring-shaped body formed by the group of blue LED light sources 211 constituting the blue light module 21, the irradiation direction included angle formed between the light source and the plane formed by the central axis of the detection platform for any one blue LED light source 211 in the ring-shaped body is consistent with the irradiation direction included angle formed between the other light sources in the same ring-shaped body and the plane formed by the central axis of the detection platform, and the red light module 22 is the same as the above-mentioned characteristic expression. The blue light assembly 21 and the red light assembly 22 are stacked, and the caliber of the ring-shaped body positioned on the upper layer is not larger than that of the ring-shaped body positioned on the adjacent lower layer.
The number of the blue light components 21 is three, and the irradiation directions of the three blue light components 21 respectively form included angles alpha with the central axis of the detection platform 31Angle alpha2And an included angle alpha3. Included angle alpha1The value range of (a) is 23-27 DEG, and the included angle alpha is2The value range of (a) is 28-32 DEG, and the included angle alpha is3The range of the angle is 33-37 degrees. To achieve the best optical path effect, the angle α is selected in this embodiment1Is 25 DEG, the included angle alpha2Is 30 DEG, the included angle alpha3Is 35 deg.
The number of the red light components 22 is two, and the irradiation directions of the two red light components 22 respectively form included angles beta with the central axis of the detection platform 31And angle of inclusion beta2. Angle of inclusion beta1The value range of (1) is 53-57 DEG, and the included angle beta2The range of values is 58-62 degrees. To achieve the best optical path effect, the present embodiment selects the included angle β1Is 55 DEG, and an included angle beta2Is 60 deg.
The irradiation light paths of the blue light component 21 and the red light component 22 at various angles are collected on the surface of the detected object.
The prior art uses red, green, blue, white, or mixed red, blue, white, etc. colors to better distinguish the desired portions of the captured image features. The embodiment of the invention only needs the red and blue lamps and combines the lamps at different angles to realize better detection effect. In the technical scheme of the embodiment, the blue light component 21 and the red light component 22 are matched with each other at three illumination angles to form an illumination scheme, the combination of the light color and the illumination angles makes the illumination scheme susceptible to defect information such as indentation, burst, magnetism exposure, scratch and the like on the surface of a detected element, the defects of the detected element are easily presented, passive elements with different specifications can be compatibly inspected, interference information is filtered, target information is highlighted, and the presentation effect of fine defects on the surface of an electronic element, particularly the passive element, is improved.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110678859.8A CN113390890A (en) | 2021-06-18 | 2021-06-18 | Electronic component outward appearance detection device based on multi-angle light path illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110678859.8A CN113390890A (en) | 2021-06-18 | 2021-06-18 | Electronic component outward appearance detection device based on multi-angle light path illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113390890A true CN113390890A (en) | 2021-09-14 |
Family
ID=77622990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110678859.8A Pending CN113390890A (en) | 2021-06-18 | 2021-06-18 | Electronic component outward appearance detection device based on multi-angle light path illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113390890A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624246A (en) * | 2022-04-22 | 2022-06-14 | 广东利元亨智能装备股份有限公司 | Appearance inspection equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020114505A1 (en) * | 1999-10-18 | 2002-08-22 | James Mahon | Machine vision |
| JP2007064801A (en) * | 2005-08-31 | 2007-03-15 | Daiichi Jitsugyo Viswill Co Ltd | Lighting system and appearance inspection device equipped with it |
| JP2009036710A (en) * | 2007-08-03 | 2009-02-19 | Daiichi Jitsugyo Viswill Co Ltd | Inspection device |
| CN201364311Y (en) * | 2009-03-02 | 2009-12-16 | 王锦峰 | Element detection device based on LED light source |
| CN102033072A (en) * | 2010-10-30 | 2011-04-27 | 华南理工大学 | Light source for optical automatic detector |
| CN102725625A (en) * | 2009-11-04 | 2012-10-10 | 伊莫拉Sacmi机械合作公司 | Apparatus, system and method for detecting defects of metallic lids |
| CN214844874U (en) * | 2021-06-18 | 2021-11-23 | 杭州思元智能科技有限公司 | Electronic component detection device based on angle combination illumination |
-
2021
- 2021-06-18 CN CN202110678859.8A patent/CN113390890A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020114505A1 (en) * | 1999-10-18 | 2002-08-22 | James Mahon | Machine vision |
| JP2007064801A (en) * | 2005-08-31 | 2007-03-15 | Daiichi Jitsugyo Viswill Co Ltd | Lighting system and appearance inspection device equipped with it |
| JP2009036710A (en) * | 2007-08-03 | 2009-02-19 | Daiichi Jitsugyo Viswill Co Ltd | Inspection device |
| CN201364311Y (en) * | 2009-03-02 | 2009-12-16 | 王锦峰 | Element detection device based on LED light source |
| CN102725625A (en) * | 2009-11-04 | 2012-10-10 | 伊莫拉Sacmi机械合作公司 | Apparatus, system and method for detecting defects of metallic lids |
| CN102033072A (en) * | 2010-10-30 | 2011-04-27 | 华南理工大学 | Light source for optical automatic detector |
| CN214844874U (en) * | 2021-06-18 | 2021-11-23 | 杭州思元智能科技有限公司 | Electronic component detection device based on angle combination illumination |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624246A (en) * | 2022-04-22 | 2022-06-14 | 广东利元亨智能装备股份有限公司 | Appearance inspection equipment |
| CN114624246B (en) * | 2022-04-22 | 2023-11-07 | 广东利元亨智能装备股份有限公司 | Appearance detection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100587473C (en) | Automated inspection system and method | |
| CN105181135B (en) | It is a kind of suitable for the collection of textile high spectrum image and the illumination system and application method of digital colour examining | |
| CN102033072A (en) | Light source for optical automatic detector | |
| US20170292831A1 (en) | System and method for improved visual detection of protective coatings | |
| JP2002535687A (en) | Method and apparatus for optically inspecting a patterned surface of an object | |
| CN113390890A (en) | Electronic component outward appearance detection device based on multi-angle light path illumination | |
| JPS609708Y2 (en) | Integrating sphere standard light source device | |
| CN201173397Y (en) | Automatic optical detection equipment light source for printed circuit board | |
| CN214844874U (en) | Electronic component detection device based on angle combination illumination | |
| CN102435610B (en) | The manufacture method of testing fixture and wired circuit board | |
| CN109791231A (en) | Laminated light-shielding film, light-shielding ring for optical device using same, lens unit, and camera module | |
| CN103697422A (en) | Coaxial lighting AOI (automatic optic inspection) light source device | |
| CN103630153A (en) | Low-angle annular infrared LED (light emitting diode) array sensor | |
| Gao et al. | Visual Recognition of Volatile Organic Compounds by Photonic Nose Integrated with Multiple Metal‐Organic Frameworks | |
| CN202472017U (en) | 7350-nm Band-pass infrared filter | |
| CN206627438U (en) | A kind of new Transmissivity measurement instrument | |
| CN111896501A (en) | A kind of spectral measurement system and method based on cross polarization | |
| CN112362312B (en) | Fixing device, testing system and fixing method for LED surface-mounted lamp beads | |
| CN206331597U (en) | A kind of parking stall of optical, mechanical and electronic integration whether there is car and wheel alignment detection device | |
| CN107782533A (en) | Detection method and detection device of camera eccentricity value | |
| CN202267535U (en) | Color detector optical head based on LED light source | |
| CN109870790A (en) | Telecentric lens | |
| CN113865709A (en) | Intelligent lamp color testing device and method based on prism color separation | |
| CN201892101U (en) | Light source for automatic optical detector | |
| CN209416283U (en) | A kind of equipment using reflector detection terminal needle |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210914 |
|
| RJ01 | Rejection of invention patent application after publication |