CN209945275U - Shooting device based on reflection light path - Google Patents
Shooting device based on reflection light path Download PDFInfo
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- CN209945275U CN209945275U CN201920908851.4U CN201920908851U CN209945275U CN 209945275 U CN209945275 U CN 209945275U CN 201920908851 U CN201920908851 U CN 201920908851U CN 209945275 U CN209945275 U CN 209945275U
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- 238000003384 imaging method Methods 0.000 claims abstract description 20
- 238000005286 illumination Methods 0.000 claims description 13
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- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a shoot device based on reflection light path for shoot simultaneously to the side and the top of determinand, it includes light source, the camera and be used for the bottom speculum group of the image light beam reflection to the middle part speculum group of the different sides of determinand, a middle part speculum group for with the whole reflection of side image light beam to the upper portion speculum, an upper portion speculum for being radial formation of image in the charge-coupled device in the camera with the side image light beam, a top speculum group for being with the top image light beam reflection of determinand and imaging in the charge-coupled device in the camera. The utility model discloses only with a camera alright successfully shoot a plurality of sides and the top of determinand, but the high cost that the multiple camera of greatly reduced brought to the device's volume receives the determinand diameter to influence very little, can measure the determinand of great volume with the device of less volume, easy operation, practicality are strong, and also to a great extent has reduced the image processing degree of difficulty.
Description
Technical Field
The utility model relates to a machine vision and detection technical field, specifically speaking especially relates to a shoot device based on reflection light path.
Background
At present, in the field of machine vision and detection, in order to shoot the side and top of an object to be detected such as a cylinder or an approximate cylinder, at least four or two cameras are needed, namely: shooting the side surface of an object to be detected by using three cameras, and shooting the top of the object to be detected by using one camera; or, the side is horizontally reflected in one direction by a reflector, then the side is shot by a camera, and then the top is shot by a camera. The first scheme undoubtedly has high cost, is not beneficial to operation, has more cameras and is complex in wiring; although the second solution can reduce the cost to some extent, the volume of the device itself needs to be proportional to the diameter of the object to be measured due to the limitation of the optical path, which undoubtedly limits the diameter of the object to be measured.
Therefore, it is an urgent need to solve the problem of the art to design a device that can capture the side and top of a cylindrical or nearly cylindrical object to be measured at low cost and has a small volume affected by the diameter of the object to be measured.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to overcome the defects of the prior art, the present invention provides a camera device based on a reflective light path.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a shooting device based on reflection light path, which is used for shooting the side and the top of an object to be measured simultaneously and comprises a bottom reflector group, a middle reflector group, an upper reflector, a top reflector group, an illuminating light source and a camera; wherein,
the bottom reflector group is arranged around the object to be detected and used for receiving image light beams on different sides of the object to be detected and reflecting the image light beams on the sides to the middle reflector group;
the middle reflector group is arranged above the object to be detected and used for reflecting all the side image light beams reflected by the bottom reflector group to the upper reflector;
the upper reflector is positioned above the middle reflector set and used for radially imaging the side image light beams reflected by the middle reflector set on a charge coupled device in the camera;
the upper reflector is provided with an elliptical hole coaxial with the center of the object to be detected, and the top reflector group is positioned above the upper reflector and used for receiving the top image light beam of the object to be detected transmitted through the elliptical hole, reflecting the top image light beam through the elliptical hole and finally imaging the top image light beam on a charge coupled device in the camera;
the camera is positioned on one side of the upper reflector far away from the top reflector group, and a charge-coupled device of the camera is aligned with an elliptical hole on the upper reflector;
and the illumination light source is positioned above the bottom reflector group and used for providing illumination for the side surface and the top of the object to be detected.
The utility model discloses only with a camera alright successfully shoot a plurality of sides and the top of determinand, but the expensive that a plurality of cameras of greatly reduced brought.
On the basis of the technical scheme, the utility model discloses still can make following improvement:
preferably, the design angles of the bottom reflector group and the middle reflector group and the distances between the bottom reflector group and the object to be measured can be adjusted.
Because of the utility model discloses a reflection light path design in the slant, bottom speculum group and middle part speculum group are through being certain angular arrangement to wherein the design angle and each speculum of each speculum and distance between the determinand is all adjustable, so can realize with the whole reflection of light to corresponding middle part speculum group of determinand side, then through the upper portion speculum with the whole reflection of light to the camera, finally with radial formation of image to camera ccd (charge coupled device), so the device's volume receives the determinand diameter to influence very little, can measure the determinand of great volume with the device of less volume.
Preferably, the top reflector group comprises two reflectors, and the two reflectors are fixed by taking the centers of the elliptical holes as vertexes to form an isosceles right triangle, so that the top light of the object to be detected can be totally reflected to the camera.
Preferably, the positions of the two reflectors are adjustable to ensure that the distances from the top and the side of the object to be measured to the camera are the same, namely, the two reflectors are designed for working distance compensation and can reflect the light rays on the side and the top of the object to be measured to the camera at the same distance.
Preferably, the two reflectors are common reflectors or pentagonal prisms with the same optical path as the common reflectors.
Preferably, the object to be measured is arranged in the middle of the bottom reflector set, so that light rays on each side surface of the object to be measured can be further ensured to be completely reflected by the bottom reflector set.
Preferably, the bottom reflector group comprises a first reflector, a second reflector and a third reflector, the first reflector, the second reflector and the third reflector mutually form an angle of 120 degrees and are arranged around the object to be detected, and the first reflector, the second reflector and the third reflector can reflect all the side light of the object to be detected.
The first reflector, the second reflector and the third reflector can be adjusted in a certain range according to the height and the diameter of the object to be measured by reasonably adjusting the included angle between the first reflector, the second reflector and the third reflector and the vertical direction and the distance between the first reflector, the second reflector and the third reflector and the object to be measured, so that the side light of the object to be measured is totally reflected finally.
Preferably, the middle reflector group comprises a fourth reflector, a fifth reflector and a sixth reflector, the fourth reflector, the fifth reflector and the sixth reflector are arranged at an angle of 120 degrees as the axis of the center of the object to be detected and are respectively fixed on the upper sides of the first reflector, the second reflector and the third reflector, and the fourth reflector, the fifth reflector and the sixth reflector can reflect all the light reflected by the first reflector, the second reflector and the third reflector onto the upper reflector.
The fourth reflector, the fifth reflector and the sixth reflector are placed at an angle from top to bottom on the different side of the object to be detected by reasonably adjusting the included angles between the fourth reflector, the fifth reflector and the sixth reflector and the distance between the fourth reflector, the fifth reflector and the sixth reflector and the object to be detected, so that the first reflector, the second reflector and the third reflector can completely reflect the side surface of the object to be detected on the same side to the fourth reflector, the fifth reflector and the sixth reflector respectively.
Preferably, the upper reflector includes a seventh reflector, and the seventh reflector is located except the elliptical hole and is configured to receive all image beams reflected by the fourth reflector, the fifth reflector and the sixth reflector.
That is, the fourth mirror, the fifth mirror and the sixth mirror need to ensure that the light beams cannot be emitted from the elliptical holes of the seventh mirror, in addition to adjusting the angle and distance to enable the light beams to reflect all the side image light beams to the seventh mirror.
Preferably, the top reflector group comprises a reflector eight and a reflector nine, and the reflector eight is positioned right above the elliptical hole; and the reflector nine is positioned on one side of the seven elliptical holes of the reflector, which is far away from the camera, and is used for reflecting and imaging the top image light beam reflected by the reflector eight to the charge coupled device in the camera through the elliptical holes.
Preferably, the illumination light source is a low-angle annular shadowless light source, so that the phenomenon of over-bright reflection points is avoided while illumination and supplementary lighting for the object to be detected are ensured.
Preferably, each of the mirrors is a mirror made of an arbitrary material having a high reflectance.
Preferably, the camera is of modular design as a whole.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a shooting device based on reflection light path has following beneficial effect:
(1) the utility model discloses the inside design of device has illumination source, need not redesign to polish.
(2) The utility model discloses when shooing the determinand, especially cylinder or approximate columniform determinand, only with a camera alright successfully shoot determinand side and top, but the expensive that many cameras of greatly reduced brought.
(3) The utility model discloses the volume is influenced by determinand diameter very little, can measure the determinand in the great volume range.
(4) The utility model discloses a modular design, the customer need not the secondary dismouting, can avoid speculum angle or position to change easily, influences the shooting effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 diagram illustrating a structure of one embodiment of the present invention.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
Fig. 3 is a schematic diagram of an imaging effect according to an embodiment of the present invention.
Wherein, in the figure,
the system comprises a first reflector, a second reflector, a third reflector, a fourth reflector, a fifth reflector, a sixth reflector, a seventh reflector, an eighth reflector, a ninth reflector, a 10 illumination light source, a camera and an object to be measured, wherein the first reflector is 1, the second reflector is 2, the third reflector is 3, the fourth reflector is 4, the fifth reflector is 5, the sixth reflector is 6, the seventh reflector is 7, the eighth reflector is 8, the ninth reflector is 9, the ninth.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1-3, the embodiment of the utility model discloses a shooting device based on reflection light path for shoot simultaneously the side and the top of determinand 12, including bottom speculum group, middle part speculum group, upper portion speculum, top speculum group, light source 10 and camera 11. The bottom reflector set, the middle reflector set, the upper reflector set and the top reflector set can be made of any material with high reflectivity. Wherein,
the bottom reflector set is disposed around the object 12 for receiving image beams from different sides of the object 12 and reflecting the image beams to the middle reflector set. In this embodiment, the bottom reflector group includes a first reflector 1, a second reflector 2, and a third reflector 3, the first reflector 1, the second reflector 2, and the third reflector 3 form an angle of 120 ° with each other and are disposed around the object 12 to be measured, and the first reflector 1, the second reflector 2, and the third reflector 3 can all reflect the side light of the object 12 to be measured. The design angles of the first reflector 1, the second reflector 2 and the third reflector 3 and the distance between the first reflector and the object to be measured 12 can be adjusted, for example, the 360mm annular track of the diameter of the object to be measured 12 is taken as an example, the included angles of the first reflector 1, the second reflector 2 and the third reflector 3 and the vertical downward direction can be adjusted within the range of 100 degrees to 120 degrees according to the height and the diameter of the object to be measured 12, the horizontal distance between the first reflector 1 and the second reflector 2 and the object to be measured 12 can also be adjusted according to the sampling track, and the object to be measured 12 is prevented from colliding with the device.
The middle reflector set is disposed above the object 12 to be measured, and is used for reflecting all the side image light beams reflected by the bottom reflector set to the upper reflector. In this embodiment, the middle reflector group includes a fourth reflector 4, a fifth reflector 5, and a sixth reflector 6, and the fourth reflector 4, the fifth reflector 5, and the sixth reflector 6 are also arranged at an angle of 120 ° with the center of the object 12 as an axis and are respectively fixed on the upper sides of the first reflector 1, the second reflector 2, and the third reflector 3. The design angles of the fourth reflector 4, the fifth reflector 5 and the sixth reflector 6 and the distance between the fourth reflector and the object to be measured 12 can be adjusted, and the first reflector 1, the second reflector 2 and the third reflector 3 can be ensured to completely reflect the side surfaces of the object to be measured 12 on the same side to the corresponding fourth reflector 4, the fifth reflector 5 and the sixth reflector 6 respectively by adjusting the proper angles and distances.
The upper reflector is located above the middle reflector set and is used for radially imaging the side image light beams reflected by the middle reflector set on a charge coupled device (ccd) in the camera 11. The upper reflector is provided with an elliptical hole coaxial with the center of the object to be measured 12, in the embodiment, the upper reflector comprises a seventh reflector 7, the position of the seventh reflector 7 except the elliptical hole is used for receiving all image light beams reflected by a fourth reflector 4, a fifth reflector 5 and a sixth reflector 6, namely the fourth reflector 4, the fifth reflector 5 and the sixth reflector 6 can reflect all reflected light beams to the seventh reflector 7 through adjusting proper angles and distances, but the light beams cannot be emitted from the elliptical hole of the seventh reflector 7.
In this embodiment, the mirror seven 7 may be placed at 45 ° to the horizontal plane to facilitate horizontal mounting of the camera 11.
The top reflector group is located above the upper reflector, and is configured to receive the top image beam of the object 12 to be measured transmitted through the elliptical hole, reflect the top image beam through the elliptical hole, and finally image the top image beam on the charge coupled device in the camera 11. In this embodiment, the top mirror group includes eight mirrors 8 and nine mirrors 9, and the eight mirrors 8 are located right above the elliptical holes; and the nine 9 reflector is positioned on the side of the seven 7 elliptical hole of the reflector, which is far away from the camera 11, and is used for reflecting and imaging the top image light beam reflected by the eight 8 reflector to the charge coupled device in the camera 11 through the elliptical hole. Eight 8 and nine 9 uses the elliptical hole center to become isosceles right triangle with the summit fixed, guarantees that the whole reflection of 12 top light of determinand to camera 11, and simultaneously, eight 8 and nine 9 positions of speculum are all adjustable to guarantee that the distance that 12 top and side of determinand to camera 11 is the same.
More specifically, as shown in fig. 1 and 2, in this embodiment, the eight reflector 8 is fixed directly above the elliptical hole of the seven reflector 7 and is placed at an angle of 22.5 ° with respect to the direction of the horizontal plane away from the camera 11, the nine reflector 9 is fixed on the left side of the elliptical hole of the seven reflector 7 and is placed at an angle of 67.5 ° with respect to the direction of the horizontal plane away from the camera 11, and the eight reflector 8 and the nine reflector 9 are fixed in an isosceles right triangle with the center of the elliptical hole as the vertex.
The eight 8 and nine 9 mirrors can also be replaced by a pentagonal prism with the same optical path.
In this embodiment, the camera 11 is located on the side of the mirror seven 7 away from the mirror eight 8 and the mirror nine 9, the charge-coupled device of the camera 11 faces the center of the elliptical hole of the mirror seven 7, and the camera 11 is horizontally placed.
In this embodiment, the illumination light source 10 is a low-angle annular shadowless light source, and is located above the first reflector 1, the second reflector 2, and the third reflector 3, and is configured to provide illumination for the side and the top of the object 12 to be measured. The height of the illumination source 10 is determined to illuminate the side and top of the object 12 without causing reflection by the reflector.
The utility model discloses a concrete working process does:
firstly, placing an object to be measured 12 among a first reflector 1, a second reflector 2 and a third reflector 3, adjusting the angles of the first reflector 1, the second reflector 2, the third reflector 3, a fourth reflector 4, a fifth reflector 5 and a sixth reflector 6 and the distance between the angles and the object to be measured 12 according to the height and the diameter of the object to be measured 12, reflecting the side light rays of the object to be measured 12 at three angles in an inclined upward direction, respectively reflecting the side light rays to the fourth reflector 4, the fifth reflector 5 and the sixth reflector 6 by the first reflector 1, the second reflector 2 and the third reflector 3, reflecting the side light rays to a camera 11 at 90 degrees by a seventh reflector 7, and radially imaging the side light rays to a camera ccd (charge coupled device) in a triangular shape as shown in fig. 3; the top light of the object to be measured 12 passes through the elliptical hole in the seven 7 reflector to reach the eight 8 reflector, and then is reflected to the camera 11 through the nine 9 reflector at 90 degrees, and the working distance compensation design is carried out on the eight 8 reflector and the nine 9 reflector by adjusting the positions thereof, so that the side light and the top light of the object to be measured 12 can be reflected to the camera at the same distance, and thus, the side light and the top light of the object to be measured 12 can be shot completely by using only one camera.
The utility model is simple in operation, the practicality is strong, but the high cost that a plurality of cameras of greatly reduced brought, also to a great extent has reduced the image processing degree of difficulty.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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. A shooting device based on a reflection light path is used for shooting the side surface and the top of an object to be detected (12) simultaneously, and is characterized by comprising a bottom reflector group, a middle reflector group, an upper reflector, a top reflector group, an illumination light source (10) and a camera (11); wherein,
the bottom reflector group is arranged around the object to be detected (12) and is used for receiving image light beams on different side surfaces of the object to be detected (12) and reflecting the image light beams on the side surfaces to the middle reflector group;
the middle reflector group is arranged above the object to be detected (12) and is used for reflecting all the side image light beams reflected by the bottom reflector group to the upper reflector;
the upper reflector is positioned above the middle reflector group and is used for radially imaging the side image light beams reflected by the middle reflector group on a charge coupled device in the camera (11);
the upper reflector is provided with an elliptical hole coaxial with the center of the object to be measured (12), and the top reflector group is positioned above the upper reflector and used for receiving the top image light beam of the object to be measured (12) transmitted through the elliptical hole, reflecting the top image light beam through the elliptical hole and finally imaging on a charge coupled device in the camera (11);
the camera (11) is positioned at one side of the upper reflector far away from the top reflector group and a charge coupled device of the camera is aligned with an elliptical hole on the upper reflector;
the illumination light source (10) is positioned above the bottom reflector group and used for providing illumination for the side surface and the top of the object to be measured (12).
2. The imaging device according to claim 1, wherein: the design angles of all the reflectors in the bottom reflector group and the middle reflector group and the distances between the reflectors and the object to be measured (12) can be adjusted.
3. The imaging device according to claim 1, wherein: the top reflector group consists of two reflectors, and the two reflectors are fixed in an isosceles right triangle by taking the center of the elliptical hole as a vertex.
4. The imaging device according to claim 3, wherein: the positions of both said mirrors are adjustable.
5. The imaging device according to claim 3, wherein: the two reflectors are ordinary reflectors or pentagonal prisms with the optical distances equal to those of the ordinary reflectors.
6. The imaging apparatus according to any one of claims 1 to 5, wherein: bottom speculum group includes speculum (1), speculum two (2) and speculum three (3), speculum one (1), speculum two (2) and speculum three (3) each other become 120 jiaos and arrange in around determinand (12) just speculum one (1), speculum two (2) and speculum three (3) homoenergetic can with the side light total reflection of determinand (12).
7. The imaging device according to claim 6, wherein: middle part speculum group includes speculum four (4), speculum five (5) and speculum six (6), speculum four (4), speculum five (5) and speculum six (6) with the center of determinand (12) is arranged and is fixed respectively for the axle center becomes 120 jiaos the different side upside of speculum one (1), speculum two (2) and speculum three (3), speculum four (4), speculum five (5) and speculum six (6) can with the light that speculum one (1), speculum two (2) and speculum three (3) reflection come is whole to reflect on the speculum of upper portion.
8. The imaging device according to claim 7, wherein: the upper reflector comprises a seventh reflector (7), and the seventh reflector (7) is used for receiving all image light beams reflected by the fourth reflector (4), the fifth reflector (5) and the sixth reflector (6) except the elliptical hole.
9. The imaging device according to claim 8, wherein: the top reflector group comprises eight (8) and nine (9) reflectors, and the eight (8) reflectors are positioned right above the elliptical holes; and the nine (9) reflector is positioned on one side of the seven (7) elliptical hole of the reflector, which is far away from the camera (11), and is used for reflecting and imaging the top image light beam reflected by the eight (8) reflector to the charge coupled device in the camera (11) through the elliptical hole.
10. The imaging apparatus based on the reflected light path according to any one of claims 1 to 5 and 7 to 9, wherein: the illumination light source (10) is a low-angle annular shadowless light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920908851.4U CN209945275U (en) | 2019-06-17 | 2019-06-17 | Shooting device based on reflection light path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920908851.4U CN209945275U (en) | 2019-06-17 | 2019-06-17 | Shooting device based on reflection light path |
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| CN209945275U true CN209945275U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920908851.4U Withdrawn - After Issue CN209945275U (en) | 2019-06-17 | 2019-06-17 | Shooting device based on reflection light path |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207616A (en) * | 2019-06-17 | 2019-09-06 | 德州深华光电科技有限公司 | A kind of filming apparatus based on reflected light path |
| CN114485393A (en) * | 2021-12-30 | 2022-05-13 | 歌尔光学科技有限公司 | Graphic card tool and calibration method |
-
2019
- 2019-06-17 CN CN201920908851.4U patent/CN209945275U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207616A (en) * | 2019-06-17 | 2019-09-06 | 德州深华光电科技有限公司 | A kind of filming apparatus based on reflected light path |
| CN110207616B (en) * | 2019-06-17 | 2024-02-20 | 德州深华光电科技有限公司 | Shooting device based on reflection light path |
| CN114485393A (en) * | 2021-12-30 | 2022-05-13 | 歌尔光学科技有限公司 | Graphic card tool and calibration method |
| CN114485393B (en) * | 2021-12-30 | 2024-03-12 | 歌尔光学科技有限公司 | Picture card tool and calibration method |
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