CN117269176A - Multi-view detection equipment - Google Patents
Multi-view detection equipment Download PDFInfo
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- CN117269176A CN117269176A CN202311501191.5A CN202311501191A CN117269176A CN 117269176 A CN117269176 A CN 117269176A CN 202311501191 A CN202311501191 A CN 202311501191A CN 117269176 A CN117269176 A CN 117269176A
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- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 230000003287 optical effect Effects 0.000 claims description 14
- 210000001624 hip Anatomy 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 7
- 230000000007 visual effect Effects 0.000 abstract description 7
- 238000011179 visual inspection Methods 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- 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
The invention relates to the technical field of visual inspection, and particularly discloses multi-view inspection equipment which comprises a reflection assembly, a first light source assembly and a lens assembly; the reflecting assembly comprises a supporting frame, a plurality of first reflecting mirrors and a plurality of second reflecting mirrors; the plurality of first reflectors are circumferentially arranged on one side of the supporting frame, and the mirror surfaces of the first reflectors are obliquely arranged away from the supporting frame along the vertical direction; an inner annular mirror seat is arranged on the other side of the supporting frame, a plurality of second reflectors are arranged on the annular inner wall of the inner annular mirror seat in a surrounding mode, and the mirror surfaces of the second reflectors are arranged in an extending mode along the vertical direction; the first mirrors are positioned between the second mirrors; the support frame is provided with a plurality of light path through holes. The visual angle detection device can meet the detection of the inner side walls of the holes with inclined visual angles, and meanwhile, the multi-visual angle detection device can meet the detection of the inner side walls of the holes with various cross-sectional shapes through the arrangement of the first reflectors and the second reflectors.
Description
Technical Field
The invention relates to the technical field of visual inspection, in particular to multi-view inspection equipment.
Background
With the continuous deep penetration of industrial automation and intellectualization, machine vision is increasingly widely used in the industrial field, and various aspects such as electronics, semiconductors, automobiles, packaging and the like are covered. Industrial lenses are important components in machine vision systems that can directly impact the overall performance of the system. The industrial lenses are of various types, the system design needs to select the lenses matched with the requirements of users, and in some scenes needing to detect the defects of the inner wall, 360-degree inner wall detection lenses are needed.
When the 360-degree inner wall detection lens is applied to an inner hole of a shooting object, a vertical inner wall and the like, the lens is not required to be placed in the hole, the inside can be detected from the outside, the space and the cost are greatly saved, and the detection efficiency is improved. However, the 360-degree inner wall detection lens in the prior art has higher hardware cost, and an imaging light path is equivalent to an ultra-wide angle lens, and is only compatible with detection of a small-range circular side wall and a side wall with insufficient visual angle inclination.
Disclosure of Invention
Based on this, it is necessary to provide a multi-view detection device for solving the problems that the 360 ° inner wall detection lens in the prior art has high hardware cost, the imaging light path is equivalent to the ultra-wide angle lens, and only the detection of the small-range circular side wall and the side wall with insufficient view angle is compatible.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the present invention provides a multi-view detection apparatus for detecting an observed piece, the multi-view detection apparatus including:
the reflecting assembly comprises a supporting frame, a plurality of first reflecting mirrors and a plurality of second reflecting mirrors; the plurality of first reflectors are circumferentially arranged on one side of the supporting frame, and the mirror surfaces of the first reflectors are obliquely arranged away from the supporting frame along the vertical direction; an inner annular mirror seat is arranged on the other side of the supporting frame, a plurality of second reflectors are arranged on the annular inner wall of the inner annular mirror seat in a surrounding mode, and the mirror surfaces of the second reflectors are arranged in an extending mode along the vertical direction; the first reflectors are positioned between the second reflectors; the supporting frame is provided with a plurality of light path through holes which are respectively corresponding to the first reflectors and the second reflectors uniformly;
a first light source module provided on a side of the support frame where the first reflecting mirror is provided;
the lens assembly is arranged on one side of the first light source assembly away from the supporting frame; the image of the observed object can be reflected by the second reflecting mirror and the first reflecting mirror in turn and enter the lens assembly.
As an alternative to the multi-view detecting apparatus, the first light source assembly is arranged to emit light obliquely so that the light emitted from the first light source assembly irradiates the observed member through the light path through hole.
As an alternative to the multi-view inspection apparatus, the first light source assembly includes a first annular seat and a first inner annular light source, and both sides of the first annular seat are respectively connected to the lens assembly and the support frame; the first inner annular light source is arranged in the first annular seat, and annular light emitted by the first inner annular light source can be gathered on the observed piece.
As an alternative to the multi-view detection apparatus, an angle between the light emitting surface of the first inner ring-shaped light source and a horizontal plane is in a range of 40 ° to 50 °.
As an alternative solution of the multi-view detection apparatus, the first reflecting mirror is a trapezoidal reflecting mirror, an upper bottom of the first reflecting mirror is disposed near the first light source assembly, a lower bottom of the first reflecting mirror is disposed far away from the first light source assembly, and waists of two adjacent first reflecting mirrors are in contact.
As an alternative to the multi-view detecting apparatus, the second mirror may be a rectangular mirror, and one of the plurality of second mirrors may correspond to the other in a horizontal direction.
As an alternative to the multi-view detecting apparatus, a plurality of the first reflecting mirrors are provided at a central position of the support frame.
As an alternative solution of the multi-view detection apparatus, the lens assembly includes an optical lens, a lens adapter ring, and a lens barrel, two ends of the lens adapter ring are detachably connected to the optical lens and the lens barrel, respectively, and the lens barrel is connected to the first light source assembly.
As an alternative to the multi-view inspection apparatus, the length of the lens barrel may be adjustable.
As an alternative to the multi-view inspection apparatus, the multi-view inspection apparatus further includes a second light source assembly including a second annular seat and a second inner annular light source, the second annular seat being connected to a side of the support frame away from the first light source assembly; the second inner annular light source is arranged in the second annular seat, and the second inner annular light source emits light along the horizontal direction.
The beneficial effects of the invention are as follows:
the multi-view detecting apparatus includes a reflection assembly, a first light source assembly, and a lens assembly. The reflection assembly comprises a supporting frame, a plurality of first reflectors and a plurality of second reflectors, wherein the first reflectors are circumferentially arranged on one side of the supporting frame, the mirror surface of the first reflectors is obliquely arranged along the vertical direction away from the supporting frame, meanwhile, an inner annular mirror seat is arranged on the other side of the supporting frame, the second reflectors are arranged on the annular inner wall of the inner annular mirror seat in a surrounding mode, the second reflectors extend along the vertical direction, the first reflectors are located among the second reflectors, a plurality of light path through holes are formed in the supporting frame, the light path through holes correspond to the first reflectors and the second reflectors uniformly, and therefore an imaging light path can change direction twice after being reflected by the first reflectors, and the observation visual angle can be adjusted, and the actual detection requirements can be met. The first light source component is arranged on one side of the support frame, which is far away from the support frame, and the image of the observed piece can sequentially enter the lens component through the reflection of the second reflector and the first reflector, so that when the observed piece is observed through the lens component, the first light source component can shine the observed piece, the observed piece can be imaged clearly, and the detection is convenient. When observing the piece of being surveyd through the camera lens subassembly, because the mirror surface slope setting of first speculum for first speculum can show the image on the second speculum that corresponds with it, and because the mirror surface of first speculum extends along vertical direction and sets up, thereby the second speculum can show the image of being surveyd a surface and hole inside wall, and this multi-view detection equipment satisfies the hole inside wall detection that the visual angle was inclined, simultaneously through the setting of a plurality of first speculum and a plurality of second speculum, can make this multi-view detection equipment satisfy the hole inside wall detection of multiple cross-section shape.
Drawings
Fig. 1 is a schematic structural diagram of a multi-view detection device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a multi-angle detection apparatus according to an embodiment of the present invention;
FIG. 3 is an exploded view of a multi-view inspection apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a reflective assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an imaging optical path of a multi-view detection device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an illumination light path of a first light source assembly according to an embodiment of the present invention.
In the figure:
1. a reflective assembly; 11. a support frame; 111. a conical lens base; 112. an inner annular lens base; 113. a light path through hole; 12. a first mirror; 13. a second mirror; 2. a first light source assembly; 21. a first annular seat; 22. a first inner annular light source; 3. a lens assembly; 31. an optical lens; 32. a lens transfer ring; 33. a lens barrel; 4. a second light source assembly; 41. a second annular seat; 42. a second inner annular light source; 5. an observed piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The present embodiment provides a viewing angle detecting apparatus for detecting an observed piece 5.
As shown in fig. 1 to 6, the multi-view detecting apparatus includes a reflection assembly 1, a first light source assembly 2, and a lens assembly 3. The reflection assembly 1 comprises a supporting frame 11, a plurality of first reflecting mirrors 12 and a plurality of second reflecting mirrors 13, wherein the first reflecting mirrors 12 are circumferentially arranged on one side of the supporting frame 11, the mirror surfaces of the first reflecting mirrors 12 are obliquely arranged along the vertical direction away from the supporting frame 11, meanwhile, an inner annular mirror seat 112 is arranged on the other side of the supporting frame 11, the second reflecting mirrors 13 are arranged on the annular inner wall of the inner annular mirror seat 112 in a surrounding mode, the second reflecting mirrors 13 are arranged in an extending mode along the vertical direction, the first reflecting mirrors 12 are located among the second reflecting mirrors 13, a plurality of light path through holes 113 are formed in the supporting frame 11, the light path through holes 113 are respectively corresponding to the first reflecting mirrors 12 and the second reflecting mirrors 13 uniformly, and therefore the direction of an imaging light path can be changed twice after passing through the first reflecting mirrors 12 and the reflecting mirrors 13, and the observation visual angle can be adjusted, and the actual detection requirements can be met. Alternatively, a plurality of first reflecting mirrors 12 are provided at the center position of the supporting frame 11, whereby imaging accuracy can be improved, and an imaging shift can be prevented. Further alternatively, a conical mirror base 111 is provided on one side of the support frame 11, and a plurality of first mirrors 12 are provided around the conical mirror base 111.
The first light source component 2 is arranged on one side of the supporting frame 11, where the first reflecting mirror 12 is arranged, the lens component 3 is arranged on one side of the first light source component 2, which is far away from the supporting frame 11, and the image of the observed piece 5 can sequentially enter the lens component through the reflection of the second reflecting mirror 13 and the first reflecting mirror 12, so that when the observed piece 5 is observed through the lens component 3, the first light source component 2 can shine the observed piece 5, the observed piece 5 can be imaged clearly, and the detection is convenient. When the observed piece 5 is observed through the lens assembly 3, the first mirror 12 can display the image on the second mirror 13 corresponding to the first mirror 12 due to the inclined arrangement of the mirror surface of the first mirror 12, and the second mirror 13 can display the image of the outer surface of the observed piece 5 and the inner side wall of the hole due to the vertical extending arrangement of the mirror surface of the first mirror 12, and the multi-view detection device can meet the detection of the inner side wall of the hole with inclined view angles, and meanwhile, the multi-view detection device can meet the detection of the inner side wall of the hole with various cross-section shapes due to the arrangement of the plurality of first mirrors 12 and the plurality of second mirrors 13.
As shown in fig. 2, 3, 4 and 6, the first light source assembly 2 is arranged in an inclined and luminous manner, so that the light emitted by the first light source assembly 2 irradiates the observed piece 5 through the light path through hole 113, and the influence of the shielding of the light emitted by the first light source assembly 2 by the support frame 11 on the lighting effect is avoided. Specifically, the first light source assembly 2 includes a first annular seat 21 and a first inner annular light source 22, two sides of the first annular seat 21 are respectively connected to the lens assembly 3 and the supporting frame 11, the first inner annular light source 22 is disposed in the first annular seat 21, and annular light emitted by the first inner annular light source 22 can be collected on the observed piece 5, so that the first inner annular light source 22 has concentrated light efficiency and comprehensive coverage, and can be compatible with polishing at medium and low angles and polishing inside and outside a hole of the observed piece 5. The angle range between the light emitting surface of the first inner annular light source 22 and the horizontal plane is 40 ° to 50 °, so that the influence of the irradiation light path on the irradiation effect due to the limited outline of the multi-view detection device and the detected piece is avoided by switching the irradiation angles. Optionally, the first inner annular light source 22 is detached and replaced according to actual requirements, or the light emitting part of the first inner annular light source 22 is subjected to angle adjustment, so that the switching of the lighting angle can be realized.
Further, the first reflecting mirrors 12 are trapezoid reflecting mirrors, the upper bottoms of the first reflecting mirrors 12 are close to the first light source assembly 2, the lower bottoms of the first reflecting mirrors 12 are far away from the first light source assembly 2, the waists of two adjacent first reflecting mirrors 12 are contacted, and therefore after the plurality of first reflecting mirrors 12 are arranged around, detection of all angles of the inner side walls of the holes of the observed piece 5 can be met, and observation dead angles are avoided. Meanwhile, the second reflecting mirror 13 is a rectangular reflecting mirror, and one of the plurality of second reflecting mirrors 13 and the other can correspond to each other along the horizontal direction, so that two second reflecting mirrors 13 which are oppositely arranged along the horizontal direction can observe the inner side wall of the hole of the observed piece 5 from opposite visual angles, and the identification and comparison are convenient. Alternatively, the first mirror 12 and the second mirror 13 may each be circular or triangular. Of course, the first mirror 12 and the second mirror 13 may be other shapes, and the present embodiment is not particularly limited.
Meanwhile, the multi-view detection device further comprises a second light source assembly 4, the second light source assembly 4 comprises a second annular seat 41 and a second inner annular light source 42, the second annular seat 41 is connected to one side, far away from the first light source assembly 2, of the supporting frame 11, the second inner annular light source 42 is arranged in the second annular seat 41, and the second inner annular light source 42 is arranged in a horizontal direction in a luminous mode, so that the second inner annular light source 42 can shine the outer surface of an observed piece 5, illumination brightness is improved, meanwhile, the second inner annular light source 42 and the first inner annular light source 22 can be matched with each other to improve illumination coverage rate, and illumination dead angles are prevented from being generated to influence detection of the detected piece.
Further, the lens assembly 3 includes an optical lens 31, a lens transfer ring 32 and a lens barrel 33, wherein both ends of the lens transfer ring 32 are detachably connected with the optical lens 31 and the lens barrel 33 respectively, and the lens barrel 33 is connected with the first light source assembly 2, so that the types of the optical lens 31 can be replaced by using the lens transfer ring 32, and compatible use of various optical lenses 31 is realized. Optionally, the length of the lens barrel 33 is adjustable, so that the adjustment requirement of the optical lens 31 is met by adjusting the length of the lens barrel 33 to change the distance between the optical lens 31 and the first reflecting mirror 12.
The multi-view detection equipment sequentially comprises a lens assembly 3, a first light source assembly 2, a reflection assembly 1 and a second light source assembly 4 from top to bottom, when an observed piece 5 is observed through the lens assembly 3, the reflection assembly 1 is used for adjusting an imaging light path so as to meet detection of the inner side wall of a hole of the observed piece 5, meanwhile, the first light source assembly 2 can be used for polishing the inner side wall of the hole of the observed piece 5 by means of inclined light emission, and the second light source assembly 4 can be used for polishing the outer surface of the observed piece 5 by means of horizontal light emission. Specifically, the image of the observed piece 5 is reflected by the second mirror 13 and the first mirror 12 in order into the lens group 3, thereby forming an imaging optical path, as shown in fig. 5. The annular light emitted from the first inner annular light source 22 of the first light source assembly 2 can be collected on the observed piece 5 after passing through the plurality of light path through holes 113, as shown in fig. 6.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A multi-view detection apparatus for detecting an observed piece (5), characterized in that the multi-view detection apparatus comprises:
-a reflecting assembly (1), the reflecting assembly (1) comprising a supporting frame (11), a plurality of first mirrors (12) and a plurality of second mirrors (13); a plurality of first reflectors (12) are circumferentially arranged on one side of the support frame (11), and the mirror surfaces of the first reflectors (12) are obliquely arranged away from the support frame (11) in the vertical direction; an inner annular mirror seat (112) is arranged on the other side of the supporting frame (11), a plurality of second reflectors (13) are arranged on the annular inner wall of the inner annular mirror seat (112) in a surrounding mode, and the mirror surfaces of the second reflectors (13) are arranged in an extending mode along the vertical direction; a plurality of said first mirrors (12) are located between a plurality of said second mirrors (13); the supporting frame (11) is provided with a plurality of light path through holes (113), and the light path through holes (113) respectively correspond to the first reflectors (12) and the second reflectors (13) uniformly;
a first light source assembly (2), wherein the first light source assembly (2) is arranged on one side of the supporting frame (11) where the first reflecting mirror (12) is arranged;
the lens assembly (3) is arranged on one side, far away from the supporting frame (11), of the first light source assembly (2); the image of the observed piece (5) can enter the lens assembly (3) through the reflection of the second reflecting mirror (13) and the first reflecting mirror (12) in sequence.
2. The multi-view detection apparatus according to claim 1, wherein the first light source assembly (2) is arranged to emit light obliquely so that light emitted from the first light source assembly (2) is irradiated onto the observed piece (5) through the optical path through hole (113).
3. The multi-view detection apparatus according to claim 2, wherein the first light source assembly (2) comprises a first annular seat (21) and a first inner annular light source (22), both sides of the first annular seat (21) being connected to the lens assembly (3) and the support frame (11), respectively; the first inner annular light source (22) is arranged in the first annular seat (21), and annular light emitted by the first inner annular light source (22) can be gathered on the observed piece (5).
4. A multi-view detection apparatus according to claim 3, characterized in that the angle of the light emitting surface of the first inner annular light source (22) to the horizontal is in the range of 40 ° to 50 °.
5. The multi-view detection apparatus according to claim 1, wherein the first reflecting mirror (12) is a trapezoidal reflecting mirror, an upper bottom of the first reflecting mirror (12) is disposed close to the first light source assembly (2), a lower bottom of the first reflecting mirror (12) is disposed away from the first light source assembly (2), and waists of two adjacent first reflecting mirrors (12) are in contact.
6. The multi-view detection apparatus according to claim 1, wherein the second mirror (13) is a rectangular mirror, and one of the plurality of second mirrors (13) is capable of corresponding to the other in a horizontal direction.
7. The multi-view detection apparatus according to claim 1, wherein a plurality of the first reflecting mirrors (12) are provided at a central position of the support frame (11).
8. The multi-angle detection apparatus according to claim 1, wherein the lens assembly (3) includes an optical lens (31), a lens transfer ring (32), and a lens barrel (33), both ends of the lens transfer ring (32) are detachably connected to the optical lens (31) and the lens barrel (33), respectively, and the lens barrel (33) is connected to the first light source assembly (2).
9. The multi-angle detection apparatus according to claim 8, wherein the length of the lens barrel (33) is adjustable.
10. The multi-view detection apparatus according to any one of claims 1 to 9, further comprising a second light source assembly (4), the second light source assembly (4) comprising a second annular seat (41) and a second inner annular light source (42), the second annular seat (41) being connected to a side of the support frame (11) remote from the first light source assembly (2); the second inner annular light source (42) is arranged in the second annular seat (41), and the second inner annular light source (42) is arranged in a horizontal direction in a luminous manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311501191.5A CN117269176A (en) | 2023-11-13 | 2023-11-13 | Multi-view detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311501191.5A CN117269176A (en) | 2023-11-13 | 2023-11-13 | Multi-view detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117269176A true CN117269176A (en) | 2023-12-22 |
Family
ID=89202789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311501191.5A Pending CN117269176A (en) | 2023-11-13 | 2023-11-13 | Multi-view detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117269176A (en) |
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2023
- 2023-11-13 CN CN202311501191.5A patent/CN117269176A/en active Pending
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