CN217236739U - Optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement - Google Patents
Optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement Download PDFInfo
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Abstract
The application relates to an optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement, which is characterized by comprising a front detection and measurement module, two projection modules, two multi-angle camera detection modules and a double-layer blue-green light source plate; the front detection measurement module is positioned right above the shooting product; the two projection modules and the two multi-angle camera detection modules are arranged above the shot product at intervals and uniformly; the double-layer blue-green light source plate is positioned between the shooting product and the front detection and measurement module; the front detection and measurement module comprises a black-and-white camera, a first telecentric lens and a red annular light source which are sequentially arranged from top to bottom. The utility model discloses a red green blue three-colour light that black and white camera cooperation corresponds shines, can realize the defect of various angle textures and shoot and the reduction of the true color of product to can combine the point cloud data of 3D to realize the three-dimensional morphology reduction of true color, contrast traditional monochromatic or single angle and shoot, the practicality is stronger and the data is more comprehensive true.
Description
Technical Field
The application relates to the technical field of optical devices, in particular to an optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement.
Background
At present, 2D detection and measurement technologies are commonly used in machine vision, and a special imaging scheme is designed basically according to product forms. Along with the continuous improvement of the product quality requirement, the detection requirement is also increased, more and more product detections and measurements increase the 3D detection requirement, so that the requirements of 2D surface quality detection and the quality requirement of 3D appearance size are met.
Chinese patent with patent application number CN213363683U discloses an optical device for multi-angle 2D/3D detection, which includes a plurality of camera detection modules inclined at a plurality of angles, two projection modules and a front camera detection module; the camera detection module of a plurality of angle inclinations sets up in the top of product, just camera detection module includes first camera, continuous laser three-dimensional scanning device and first camera lens based on schem's law hinge principle, and continuous laser three-dimensional scanning device based on schem's law hinge principle connects between first camera and first camera lens, and first camera lens is towards the direction setting of being close to the product, and two projection module symmetries set up in the both sides of positive camera detection module and are located the top of product, and positive camera detection module is located directly over the product. The design can shoot five faces of the product simultaneously, 2D and 3D imaging technologies with high frame rates can be fused, multi-angle detection is achieved, and detection is comprehensive. In addition, the front camera detection module camera increases a telecentric lens with high resolution force, so that high-precision 3D measurement and high-precision 2D measurement can be realized, and the X/Y direction measurement precision is higher.
However, the above-mentioned contents have disadvantages: the front camera detection module is generally a black-and-white camera, and cannot restore the color of a product to generate a three-dimensional image of a real color.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides an optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement, and aims to solve the technical problem that a front camera detection module in the related art cannot restore the color of a product to generate a three-dimensional image of real color.
The technical scheme of the utility model is realized like this: an optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement comprises a front detection measurement module, two projection modules, two multi-angle camera detection modules and a double-layer blue-green light source plate; the front detection measuring module is positioned right above the shooting product; the two projection modules and the two multi-angle camera detection modules are arranged above a shot product at intervals and uniformly; the double-layer blue-green light source plate is positioned between the shooting product and the front detection and measurement module; the front detection measurement module comprises a black-and-white camera, a first telecentric lens and a red annular light source which are sequentially arranged from top to bottom.
In some embodiments, the dual-layer blue-green light source plate includes an upper light source plate and a lower light source plate, one of green band beads or blue band beads is disposed around the upper light source plate, one of green band beads or blue band beads is disposed around the lower light source plate, and the upper light source plate and the lower light source plate have different colors.
In some embodiments, one of green band beads or blue band beads is arranged around the upper light source plate in a plug-in and/or paste manner, and one of green band beads or blue band beads is arranged around the lower light source plate in a plug-in and/or paste manner.
In some embodiments, the upper light source board body is inclined at an angle of 45 °, and the lower light source board body is inclined at an angle of 75 °.
In some embodiments, the double-layer blue-green light source plate further comprises a brightness adjuster, and the green band lamp beads and the blue band lamp beads are electrically connected with the brightness adjuster.
In some embodiments, the projection module includes a projection device, a second telecentric lens coupled to the projection device.
In some embodiments, the multi-angle camera detection module includes a second camera, a Samm device, and a macro lens, the second camera being connected to the Samm device, the Samm device being connected to the macro lens.
In some embodiments, the schemer device is a continuous laser three-dimensional scanning device based on the schemer's law hinge principle.
In some embodiments, the second camera is a pan-tilt camera.
In some embodiments, the double-layer blue-green light source plate is arranged in a polygonal or circular shape.
The beneficial effect that technical scheme that this application provided brought includes:
(1) the black and white camera is matched with corresponding red, green and blue light rays to irradiate, can realize defect shooting of textures of various angles and restoration of real colors of products, can combine 3D point cloud data to realize three-dimensional morphology restoration of real colors, and compared with traditional single color or single-angle shooting, the practicability is stronger, and data is more comprehensive and real.
(2) The light source of this application is double-deck blue-green light source, and low-level light source low angle is polished, can promote the information of the detection of shooing the product surface, and the three-dimensional detection demand of 2.5D luminosity can be realized to the polygon frequency division shooting of cooperation high frame rate camera, can further promote the detectability on product surface, compares the single channel low angle and shoots, and surface information is abundanter comprehensive.
(3) The system can directly meet the detection of 5 surfaces, has the detection and measurement capabilities of 2D, 2.5D and 3D, has comprehensive overall design functions compared with other 3D cameras and optical devices, covers the requirements of multi-dimensional and multi-angle detection, has compact structure and is beneficial to the application of online detection;
(4) the method and the device can realize shooting at the ultrahigh frame rate, greatly improve the detection efficiency, support the application of the ultrahigh frame rate of the second camera, and realize higher-precision 2D and 3D measurement compared with other 3D cameras;
(5) this application is through the nurse device, and the cooperation macro lens can promote the depth of field that the slope was shot, increases the nurse device and can make and shoot the focus more clear in the whole field of vision, and the promotion that the imaging effect is qualitative avoids appearing the condition of many virtual focuses in the picture field of vision.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic front view of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a schematic top view of the dual-layer blue-green light source plate of the present invention;
fig. 4 is the schematic view of the sectional structure of the double-layered blue-green light source board of the present invention.
In the figure: 1. a black and white camera; 2. a first telecentric lens; 3. a red ring light source; 4. a projection device; 5. a second telecentric lens; 6. a second camera; 7. a Sam device; 8. a macro lens; 9. a double-layer blue-green light source plate; 10. the product is photographed.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the present embodiment provides an optical device satisfying 5S high-precision 2D, 2.5D, and 3D fusion detection and measurement, including a front detection measurement module, two projection modules, two multi-angle camera detection modules, and a double-layer blue-green light source plate 9. The front detection measurement module is located right above the photographic product 10. The two projection modules and the two multi-angle camera detection modules are arranged above the shooting product 10 at intervals and uniformly. The double-layer blue-green light source plate 9 is positioned between the shooting product 10 and the front detection and measurement module. The front detection and measurement module comprises a black-and-white camera 1, a first telecentric lens 2 and a red annular light source 3 which are sequentially arranged from top to bottom. Wherein, the black and white camera 1 is an ultra high frame rate main camera, which is perpendicular to the photographic product 10. In the present embodiment, the monochrome camera 1 can capture an image in a monochrome high frame rate format.
The utility model provides a red green blue three-colour light that black and white camera cooperation corresponds shines, can realize the defect of various angle textures and the reduction of the true color of product to can combine 3D point cloud data to realize the three-dimensional appearance reduction of true color, contrast traditional monochromatic or single angle and shoot, the practicality is stronger and the data is more comprehensive true.
The number of the projection modules is two, the projection modules comprise a projection device 4 and a second telecentric lens 5, and the second telecentric lens 5 is connected with the projection device 4. The inclination angle of the projection device 4 is 10-45 degrees, so that the problem of virtual focus of large-angle inclined projection can be avoided, the installation space is saved, the installation space of the red annular light source 3 can be reserved, in addition, the problems of point cloud loss and blind areas caused by single-side projection reflection can be avoided through double projection arrangement, and the range of products shot by using the projection device is wider. The inclination angle of the projection device 4 is 30 deg..
The multi-angle camera detection modules comprise two multi-angle camera detection modules, each multi-angle camera detection module comprises a second camera 6, a Samm device 7 and a macro lens 8, the second cameras 6 are connected with the Samm devices 7, and the Samm devices 7 are connected with the macro lenses 8. The Sam device 7 is a continuous laser three-dimensional scanning device based on a Sam law hinge principle. The second camera 6 is a high resolution pan-tilt camera. In this embodiment, the second camera 6 can take a high-resolution photograph, and the second camera 6 can be moved. The inclination angle of the second camera 6 is 30-60 degrees, so that the detection requirements of five surfaces of a product can be met by the combined shooting of the two second cameras 6 and the black-and-white camera 1, and the 3D detection of binocular stereoscopic vision can also be met by the mutual calibration of the two second cameras 6. The inclination angle of the second camera 6 is preferably 45 °, and in this embodiment, the inclination angle of the second camera 6 is 45 °.
During the use, openly detect measuring module and multi-angle camera detection module and shoot five faces of shooing product 10, wherein projection module provides mole stripe illumination for 3D formation of image and shoots many fringe images with the cooperation openly detects measuring module, utilizes the synthetic 3D point cloud picture of phase method, and the blind area that shines that the single projection caused can be eliminated in two projection module's installation, red annular light source 3 can provide reasonable angle of polishing for shooing product 10, can also increase the depth of field that 6 shoots of second camera through the inclination of schem device 7, the product of the more size thickness of adaptation, and the structure is also more compact, the installation of being convenient for.
As shown in fig. 1, in the present embodiment, the respective apparatuses are installed such that the monochrome camera 1 is located at a first orientation of the photographic product 10, the projection device 4 is obliquely placed at a second orientation and a third orientation of the photographic product 10, respectively, the second camera 6 is obliquely placed at a fourth orientation and a fifth orientation of the photographic product 10, respectively, the height of the second camera 6 is lower than that of the projection device 4, the height of the projection device 4 is lower than that of the monochrome camera 1, the monochrome camera 1 is located at the center, the projection device 4 and the second camera 6 are located around the monochrome camera 1, the second camera 6 is located at a first diagonal of the monochrome camera 1, the projection device 4 is located at a second diagonal of the monochrome camera 1, respectively, and the photographic product 10 is located at the monochrome camera 1, The double-layer blue-green light source plate 9 is located below the shooting product 10, the black-and-white camera 1 is in the center position, the projection device 4 and the second camera 6 are installed at the diagonal positions of the visual field of the black-and-white camera 1, shooting and projection are carried out at an angle of 45 degrees relative to the visual field of the FOV of the black-and-white camera 1, the design mode can be compatible with more product types, the installation space is saved, and the point cloud quality is better.
As shown in fig. 1, 2, 3 and 4, the dual-layer blue-green light source plate includes an upper light source plate and a lower light source plate, one of green band beads or blue band beads is disposed around the upper light source plate, one of green band beads or blue band beads is disposed around the lower light source plate, and the upper light source plate and the lower light source plate have different light source colors. In this embodiment, the upper light source plate is provided with green-band lamp beads, and the lower light source plate is provided with blue-band lamp beads in a dark transition manner. The lamp pearl colour can suitably be changed, and the high school low angle that satisfies RGB cooperates can. The lamp beads are LED lamp beads.
One of green wave band lamp beads or blue wave band lamp beads is arranged on the periphery of the upper light source plate in a plug-in type and/or a paste type, and one of green wave band lamp beads or blue wave band lamp beads is arranged on the periphery of the lower light source plate in a plug-in type and/or a paste type.
The inclination angle of the upper light source plate body is 45 degrees, and the inclination angle of the lower light source plate body is 75 degrees. The light emitting angle of the lamp beads on the upper light source plate is 120 degrees. The light emitting angle of the lamp beads on the lower light source plate is 30 degrees, the low-layer light source is lightened at a low angle, and the information of the detection of the surface of the shot product can be improved.
The double-layer blue-green light source plate 9 is arranged in a polygonal or circular shape. When double-deck blue light source board 9 is the polygon setting, double-deck light source board 9 cooperation ultra high frame rate 1 polygon frequency division of black and white camera is shot, can realize the three-dimensional detection demand of 2.5D luminosity, can further promote the detectability on product surface, and the contrast single channel low angle is shot, and surface information is abundanter comprehensive. The light-emitting angle and the installation angle of the lamp bead can be properly adjusted according to the product form and the light source size, and the adjustment of various light source angles is supported.
As shown in fig. 1 and fig. 2, the lamb device 7 and the macro lens 8 are obliquely fixed on the side of the second camera 6, the lamb device 7 is located between the second camera 6 and the macro lens 8, and the lamb device 7 cooperates with the macro lens 8 to improve the depth of field of oblique shooting.
In addition, the black-and-white camera 1 can realize the detection and measurement of the front 2D of the object by matching with the telecentric lens 2 and the red annular light source 3. The black-and-white camera 1 is matched with the double-projection device 4 to realize high-precision 3D measurement, the double-projection design can ensure that the quality of the whole point cloud is not lost, and a projection blind area is avoided. The second camera 6 cooperates with the samm device 7, the macro lens 8 and the double-layer blue-green light source plate 9, the appearance detection of 4 sides of the side edge can be completed, and when the installation position of the second camera 6 is higher than the moving position of a shot product, the requirement of online rapid detection of the shot product can be supported, and meanwhile, the second camera 6 cooperates with the double-layer blue-green light source plate 9 to achieve 3D detection through a binocular stereo vision technology. The black-and-white camera 1 is matched with the double-layer blue-green light source plate 9 for frequency division shooting to meet the requirement of 2.5D detection of luminosity stereo, and is particularly suitable for detecting the surface fine defects and three-dimensional information of an object to be detected.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement is characterized by comprising a front detection and measurement module, two projection modules, two multi-angle camera detection modules and a double-layer blue-green light source plate (9); the front detection measuring module is positioned right above the shooting product (10); the two projection modules and the two multi-angle camera detection modules are arranged above a shot product (10) at intervals and uniformly; the double-layer blue-green light source plate (9) is positioned between the shooting product (10) and the front detection measuring module; the front detection measurement module comprises a black-and-white camera (1), a first telecentric lens (2) and a red annular light source (3) which are sequentially arranged from top to bottom.
2. The optical device meeting 5S high-precision 2D, 2.5D, 3D fusion detection and measurement requirements of claim 1, wherein the double-layer blue-green light source plate (9) comprises an upper light source plate and a lower light source plate, one of green band light beads or blue band light beads is arranged around the upper light source plate, one of green band light beads or blue band light beads is arranged around the lower light source plate, and the light source colors of the upper light source plate and the lower light source plate are different.
3. The optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement requirements of claim 2 is characterized in that one of green-band lamp beads and blue-band lamp beads is arranged around the upper light source plate in a plug-in and/or sticking mode, and one of green-band lamp beads and blue-band lamp beads is arranged around the lower light source plate in a plug-in and/or sticking mode.
4. The optical device meeting 5S high-precision 2D, 2.5D, 3D fusion detection and measurement of claim 2, wherein the upper light source board body inclination angle is 45 ° and the lower light source board body inclination angle is 75 °.
5. The optical device meeting 5S high-precision 2D, 2.5D and 3D fusion detection and measurement requirements of claim 2, wherein the double-layer blue-green light source plate (9) further comprises a brightness adjuster, and the green-band lamp beads and the blue-band lamp beads are electrically connected with the brightness adjuster.
6. Optical device satisfying 5S high precision 2D, 2.5D, 3D fusion detection and measurement according to claim 1 characterized in that said projection module comprises a projection device (4), a second telecentric lens (5), said second telecentric lens (5) being connected to said projection device (4).
7. The optical device satisfying 5S high precision 2D, 2.5D, 3D fusion detection and measurement according to claim 1, wherein the multi-angle camera detection module comprises a second camera (6), a Samm device (7) and a macro lens (8), the second camera (6) being connected with the Samm device (7), the Samm device (7) being connected with the macro lens (8).
8. The optical device satisfying 5S high precision 2D, 2.5D, 3D fusion detection and measurement according to claim 7, characterized in that said schem device (7) is a continuous laser three-dimensional scanning device based on the schem' S law hinge principle.
9. The optical device satisfying 5S high precision 2D, 2.5D, 3D fusion detection and measurement according to claim 7, characterized in that the second camera (6) is a tilt-shift camera.
10. The optical device satisfying 5S high precision 2D, 2.5D, 3D fusion detection and measurement as claimed in claim 1, wherein the double layer blue-green light source board (9) is arranged in a polygon or circle shape.
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| CN119935018A (en) * | 2025-01-09 | 2025-05-06 | 西安交通大学 | A multi-angle shift fringe projection three-dimensional measurement system and calibration method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119935018A (en) * | 2025-01-09 | 2025-05-06 | 西安交通大学 | A multi-angle shift fringe projection three-dimensional measurement system and calibration method |
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