CN209764029U - Detection device for detecting three-dimensional shape of object - Google Patents
Detection device for detecting three-dimensional shape of object Download PDFInfo
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- CN209764029U CN209764029U CN201920487902.0U CN201920487902U CN209764029U CN 209764029 U CN209764029 U CN 209764029U CN 201920487902 U CN201920487902 U CN 201920487902U CN 209764029 U CN209764029 U CN 209764029U
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Abstract
The utility model discloses a detection apparatus for be used for detecting three-dimensional shape of object belongs to optical imaging technical field. The detection device comprises a projection unit and an imaging acquisition unit, wherein the imaging acquisition unit comprises a camera and a telecentric lens arranged on the camera, and the telecentric lens is arranged right above an object; the projection unit comprises at least three projection light machines; the at least three projection light machines are circumferentially and uniformly distributed on the periphery of the telecentric lens by taking the optical axis of the telecentric lens as a central axis; the reflector assembly is arranged below the light-emitting surface of each projection light machine; and the grating stripes generated by the projection light machine are reflected by the reflecting mirror assembly to reach an object. The utility model discloses a to the multidirectional projection of object to get rid of because the shadow region that the object shape is complicated to cause, improve the integrality of object three-dimensional formation of image.
Description
Technical Field
The utility model relates to an optical imaging technical field especially relates to a detection device for detecting three-dimensional shape of object.
background
In the electronic manufacturing industry, it is often necessary to detect the three-dimensional shapes of circuit boards, components and solder paste for fixing the components, check whether the dimensions meet the standards, and improve the yield. A commonly used method for detecting a three-dimensional shape is a phase measurement method, namely, a sine grating is projected on an object to be detected through a projection optical machine, a lens is used for image acquisition, then the phase 1/4 period of the grating is moved, and then an image is acquired; and by analogy, image acquisition under different phases is carried out for four times in total, and the acquired image data is transmitted to related software for processing, so that complete imaging of the three-dimensional shape of the object is completed.
When a projection optical machine of the existing detection device is used for projecting an object, for a three-dimensional object with a complex shape structure, shadow areas are easily generated on the object, and the object is influenced to present a complete three-dimensional image.
Therefore, it is desirable to provide a detection apparatus for detecting a three-dimensional shape of an object to solve the above problems.
SUMMERY OF THE UTILITY MODEL
an object of the utility model is to provide a detection device for detecting three-dimensional shape of object can be followed a plurality of directions and projected the object, effectively gets rid of because the shadow region that the object shape complicacy caused.
In order to realize the purpose, the following technical scheme is provided:
A detection device for detecting the three-dimensional shape of an object comprises a projection unit and an imaging acquisition unit, wherein the imaging acquisition unit comprises a camera and a telecentric lens arranged on the camera, and the telecentric lens is arranged right above an object;
The projection unit comprises at least three projection light machines; at least three projection ray apparatus use the optical axis of telecentric mirror head is the center pin telecentric mirror head's periphery is circumference evenly distributed.
Further, the projection unit further comprises an optical path switching mechanism; the light path conversion mechanism comprises at least three reflector assemblies, and one reflector assembly is arranged below the light emitting surface of each projection light machine; and the grating stripes generated by the projection light machine are reflected by the reflecting mirror assembly to the light path until reaching the object.
Further, the reflector assembly comprises a first reflector and a second reflector, the first reflector is arranged close to the optical axis of the telecentric lens, and the second reflector is arranged far away from the optical axis of the telecentric lens;
the plane of reflection of first speculum deviates from the optical axis setting of telecentric mirror, the plane of reflection of second mirror is towards the optical axis setting of telecentric mirror, the projection ray apparatus the grating stripe in proper order through the plane of reflection of first speculum with the reflection of the plane of reflection of second mirror, throw extremely on the object thing.
furthermore, the included angle range between the reflecting surface of the first reflector and the optical axis of the telecentric lens is [68 degrees ] and 72 degrees ]; the included angle range between the reflecting surface of the second reflecting mirror and the optical axis of the telecentric lens is [43 degrees ] and [ 47 degrees ].
Furthermore, the projection unit further comprises an adjusting frame, each projection optical machine is arranged on the upper portion of the adjusting frame through an optical machine support, and each reflector assembly is arranged on the lower portion of the adjusting frame through a reflector support.
Further, the position of the optical machine bracket relative to the adjusting frame is adjustable.
Furthermore, the reflector bracket comprises a first sub bracket and a second sub bracket, the first reflector is arranged on the first sub bracket, and the second reflector is arranged on the second sub bracket; the first sub-bracket is fixedly arranged at the lower part of the adjusting bracket;
The position of the second sub bracket relative to the adjusting bracket is adjustable.
Furthermore, the reflector bracket also comprises a connecting rod, and the connecting rod is fixedly connected with the first sub bracket and the second sub bracket; the connecting rod is provided with two, two the connecting rod set up symmetrically in first branch support with the both sides of second branch support.
Further, the position of the connecting rod relative to the second sub bracket is adjustable to accommodate changes in the position of the second sub bracket at the adjustment bracket.
Further, a two-dimensional light source is arranged between the telecentric lens and the object; the two-dimensional light source comprises an upper overhead light source and a lower ring light source, which is used in cooperation with the overhead light source for acquiring a color two-dimensional image of the object.
compared with the prior art, the beneficial effects of the utility model are that:
1) The utility model realizes the multi-directional projection of the object by arranging at least three projection light machines, so as to remove the shadow area caused by the complicated shape of the object and improve the integrity of the three-dimensional imaging of the object;
2) the utility model discloses a camera disposes telecentric lens, and the image magnification that telecentric lens obtained at certain object distance within range can not change along with the change of object distance, also does not have the strabismus and shelter from when shooting the object that has the height, has improved object three-dimensional data's accuracy.
Drawings
Fig. 1 is a perspective view of a detection device in an embodiment of the present invention;
Fig. 2 is a front view of the detecting device in the embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a projection unit according to an embodiment of the present invention;
FIG. 4 is a schematic view of the projection optical machine of the embodiment of the present invention disposed on the adjusting bracket;
fig. 5 is a schematic structural view of the reflector assembly disposed on the adjusting bracket according to an embodiment of the present invention.
Reference numerals:
1-an imaging acquisition unit; 11-a camera; 12-a telecentric lens;
2-a projection unit; 21-a projection light machine; 22-a mirror assembly; 221-a first mirror; 222-a second mirror; 23-a light machine support; 231-first bar holes; 24-mirror mount; 241-a first sub-support; 242-a second sub-mount; 243-connecting rod; 2431-third strip holes; 25-an adjusting bracket; 251-a first threaded hole; 252-a second bar aperture;
3-a two-dimensional light source; 31-overhead light source; 32-ring light source;
4-object.
Detailed Description
In order to make the technical problems, technical solutions adopted and technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
as shown in fig. 1-2, the present embodiment discloses a detection apparatus for detecting a three-dimensional shape of an object, which includes a projection unit 2 and an imaging acquisition unit 1, where the imaging acquisition unit 1 includes a camera 11 and a telecentric lens 12 disposed on the camera 11, and the telecentric lens 12 is disposed right above an object 4 to acquire an image of the object 4. The telecentric lens 12 is based on its unique optical properties: the high resolution, the ultra-wide depth of field, the ultra-low distortion, the unique parallel light design and the like ensure that the image magnification of the telecentric lens 12 obtained in a certain object distance range does not change along with the change of the object distance, and the squint and the shielding do not exist when the high object 4 is shot, thereby improving the accuracy of the three-dimensional data of the object 4.
The projection unit 2 is arranged at the periphery of the telecentric lens 12 and provides a light source for the object 4; specifically, the projection unit 2 includes a projection light machine 21 and an optical path switching mechanism, the projection light machine 21 generates a grating stripe, the grating stripe uses the optical path switching mechanism to reflect the optical path until reaching the object 4, a light spot is formed on the object 4, and the telecentric lens 12 receives the light reflected by the object 4 to realize the image collection. If the three-dimensional shape of the object 4 is complicated, the projection light machine 21 only forms one light spot on the object 4, which obviously causes more shadows on the object, so that the imaging acquisition unit 1 cannot accurately acquire the three-dimensional shape of the object, and the accurate imaging of the object 4 is affected. Therefore, as shown in fig. 1-2, in the present embodiment, the projection unit 2 is provided with at least three light projectors 21; in order to improve the uniformity of the light projected onto the object 4, the light projector 21 is arranged to take the optical axis of the telecentric lens 12 as a central axis, and is circumferentially and uniformly distributed on the periphery of the telecentric lens 12, so that the grating stripes in multiple directions can be projected onto the object 4, and the shadow on the object 4 is reduced.
Specifically, the projection light machine 21 includes a light machine light source, a lens, a prism and a digital micromirror wafer, the lens is located between the light machine light source and the prism, the prism is located between the lens and the digital micromirror wafer, light emitted by the light machine light source sequentially passes through the lens, the prism and the digital micromirror wafer to generate grating stripes, the digital micromirror wafer is adopted to directly perform phase shift processing on the grating stripes, and compared with a traditional physical grating, the control is easier, and the generated grating stripes are also more clearly visible.
In order to realize that the grating stripes of each projection optical machine 21 can accurately reach the object 4, the light path switching mechanism comprises at least three reflector assemblies 22, the number of the reflector assemblies 22 corresponds to the number of the projection optical machines 21 one by one, one reflector assembly 22 is arranged right below the light-emitting surface of each projection optical machine 21, and the reflector assemblies 22 are also uniformly distributed on the periphery of the telecentric lens 12 in the circumferential direction. Specifically, the mirror assembly 22 includes a first mirror 221 and a second mirror 222, the first mirror 221 is disposed close to the optical axis of the telecentric lens 12, and the second mirror 222 is disposed far from the optical axis of the telecentric lens 12; the reflection surface of the first reflector 221 is disposed away from the optical axis of the telecentric lens 12, the reflection surface of the second reflector 222 is disposed toward the optical axis of the telecentric lens 12, and the grating stripes of the projection light machine 21 are reflected by the reflection surface of the first reflector 221 and the reflection surface of the second reflector 222 in sequence and finally projected onto the object 4 (as shown by the dotted line in fig. 2). In this embodiment, each of the projection light machines 21 and the two corresponding reflection mirrors are located at the same position on the periphery of the telecentric lens 12, and since the telecentric lens 12 has high precision and small required light spot size, the setting at the same position can shorten the optical path and reduce the size of the light spot projected onto the object 4, thereby meeting the use requirement of the telecentric lens 12.
As shown in fig. 2, this exampleIn the embodiment, the included angle between the reflecting surface of the first reflector 221 and the optical axis of the telecentric lens 12 is set to be alpha1the angle between the reflecting surface of the second reflector 222 and the optical axis of the telecentric lens 12 is beta1，α1Is in an angle range of [68 DEG, 72 DEG ]]，β1The angle range is [43 degrees, 47 degrees ]]。
In specific implementation, the detection device is optionally provided with four, five, six or more projection light machines 21 to project light spots from more directions, so as to avoid shadows caused by the complex three-dimensional shape of the object 4 as much as possible; meanwhile, a plurality of optical projectors 21 are uniformly distributed on the periphery of the telecentric lens 12, and each optical projector 21 can be correspondingly provided with a reflector assembly 22 located at the same direction to complete the conversion of the optical path.
The grating stripes projected by each light projector 21 are projected by a mirror assembly 22 arranged below the grating stripes to form light spots on the object 4. Under the condition of arranging a plurality of projection light machines 21, only if light spots formed on the object 4 by the plurality of projection light machines 21 are overlapped, the telecentric lens 12 can be ensured to accurately acquire the image information of the object 4; in order to overcome the problem that the light spots of the projection optical machine 21 cannot be completely overlapped due to assembly errors, the positions of the second reflector 222 which is provided with the projection optical machine 21 and the reflector assembly 22 arranged below the projection optical machine 21 can be finely adjusted in the installation process, so that the propagation path of light is changed, and the adjustment of the light spot position is realized. To achieve the above purpose, as shown in fig. 3-5, the projection unit 2 further includes an adjusting bracket 25, each projection light 21 is disposed on the upper portion of the adjusting bracket 25 through a light machine bracket 23, and each mirror assembly 22 is disposed on the lower portion of the adjusting bracket 25 through a mirror bracket 24. The projection optical machine 21 and the reflector assembly 22 are integrated together through a support structure, so that the compactness of the whole detection device can be improved, and the manufacturing cost of the device is reduced.
for the projection optical machine 21, in order to realize that the position of the projection optical machine 21 relative to the adjusting bracket 25 is adjustable, optionally, the adjusting bracket 25 is provided with a first threaded hole 251, the bottom of the optical machine support 23 is provided with a first strip-shaped hole 231, a bolt sequentially passes through the first strip-shaped hole 231 and the first threaded hole 251 to fix the projection optical machine 21 to the adjusting bracket 25, and the position of the projection optical machine 21 relative to the adjusting bracket 25 can be adjusted by adjusting the bolt at different positions of the first strip-shaped hole 231. Optionally, in this embodiment, a first bar-shaped hole may be provided on the adjusting bracket 25, and meanwhile, a first threaded hole is provided on the optical machine support 23, so that the position of the optical machine support 23 can be adjusted. The opto-mechanical support 23 can also adopt other structures to realize the position adjustment relative to the adjusting frame 25, which is not described in detail herein.
For the mirror assembly 22, the mirror support 24 includes a first sub-support 241 and a second sub-support 242, the first mirror 221 is disposed on the first sub-support 241, and the second mirror 222 is disposed on the second sub-support 242; the first sub-bracket 241 is optionally fixed to the lower portion of the adjusting bracket 25 by a bolt structure. A second threaded hole is formed in the top of the second sub bracket 242, a second strip-shaped hole 252 is formed in the adjusting frame 25, and a bolt sequentially penetrates through the second strip-shaped hole 252 and the second threaded hole to fix the second sub bracket 242 on the adjusting frame 25; by adjusting the different positions of the bolts in the second elongated holes 252, the position of the second sub bracket 242, i.e. the second reflecting mirror 222, relative to the first reflecting mirror 221, can be adjusted relative to the adjusting bracket 25 and the first sub bracket 241. Alternatively, in this embodiment, a second strip-shaped hole may be provided on the second sub bracket 242, and a second threaded hole is provided on the adjusting bracket 25, so that the position of the second sub bracket 242 can be adjusted. The second sub-frame 242 may also adopt other structures to realize the position adjustment relative to the adjusting frame 25, which will not be described in detail herein.
Further, after the position adjustment of the optical projection machine 21 and the mirror assembly 22 is completed, the detection device is inevitably moved or is impacted by the outside, and further causes the vibration of the internal structure, in order to avoid the change of the relative positions of the two mirrors in the mirror assembly 22 in the process and cause the projection dislocation of the light spot, the mirror support 24 is further provided with a connecting rod 243, the connecting rod 243 is fixedly connected with the first sub-support 241 and the second sub-support 242, so that when the detection device vibrates, the relative positions of the first mirror 221 and the second mirror 222 are not changed, and the light can be projected according to the original emission angle. Specifically, the connecting rods 243 are provided in two, and the two connecting rods 243 are symmetrically provided at both sides of the first and second sub brackets 241 and 242. For each connecting rod 243, one end of the connecting rod 243 is fixedly connected with the first sub bracket 241, and the other end is fixedly connected with the second sub bracket 242, optionally by a bolt structure. One end of the connecting rod 243 connected with the second branch bracket 242 is provided with a third bar-shaped hole 2431, a third threaded hole is formed in the side wall of the second branch bracket 242, and a bolt sequentially penetrates through the third bar-shaped hole and the third threaded hole to fix the connecting rod 243 to the second branch bracket 242. When the position of the second sub-bracket 242 on the adjusting bracket 25 is changed, the position of the bolt in the third strip-shaped hole 2431 can be correspondingly changed to adapt to the change of the relative position of the second sub-bracket 242 and the first sub-bracket 241.
in view of the above, the detection device can adjust the light spot position by adjusting the projection light machine 21, and can also adjust the light spot position by adjusting the second reflection mirror 222. In order to improve the adjustment efficiency and simplify the adjustment steps, the projection optical machines 21 are grouped to make the light spot adjustment have a certain reference, the projection optical machines 21 of one group are fixed, but the corresponding second reflection mirrors 222 are adjustable, the projection optical machines 21 of the other group are adjustable, but the corresponding second reflection mirrors 222 are fixed, and the light spot coincidence can be quickly adjusted by using as few operations as possible. Taking a detection device provided with four projection light machines 21 as an example, the four projection light machines 21 include a first projection light machine, a second projection light machine, a third projection light machine and a fourth projection light machine which are sequentially arranged along a clockwise direction; correspondingly, the number of the reflector assemblies 22 is also four, and the reflector assemblies are respectively a first reflector assembly, a second reflector assembly, a third reflector assembly and a fourth reflector assembly which are sequentially arranged along the clockwise direction, and the first reflector assembly is arranged right below the first projection optical machine. When the light spots are adjusted to coincide, the positions of the first projection light machine and the third projection light machine relative to the adjusting frame 25 are set to be adjustable, the positions of the second projection light machine and the fourth projection light machine relative to the adjusting frame 25 are fixed, the positions of the second reflecting mirror 222 of the first reflecting mirror assembly and the second reflecting mirror 222 of the third reflecting mirror assembly relative to the adjusting frame 25 are fixed, and the positions of the second reflecting mirror 222 of the second reflecting mirror assembly and the second reflecting mirror 222 of the fourth reflecting mirror assembly relative to the adjusting frame 25 are adjustable. So, earlier through the position of adjusting first projection ray apparatus and third projection ray apparatus, make the facula of the two can coincide, use this facula as the benchmark again, adjust the second mirror 222 of second mirror assembly and the second mirror 222 of fourth mirror assembly, realize the coincidence of second projection ray apparatus and fourth projection ray apparatus facula.
In the projection optical engine 21 with the nonadjustable position relative to the adjusting bracket 25, the optical engine bracket 23 is optionally not provided with the first strip-shaped hole 231, but is directly provided with a threaded hole to complete the connection between the optical engine bracket 23 and the adjusting bracket 25, or is connected by adopting other fixed connection structures; similarly, for the second reflector 222 whose position of the adjusting frame 25 is not adjustable, the adjusting frame 25 is optionally no longer provided with the second strip-shaped hole 252, and the adjusting frame 25 is directly connected with the second sub-bracket 242 by forming a threaded hole, or connected by using other fixed connection structures.
The detection device in this embodiment can also realize the acquisition of a two-dimensional image of the object 4, and in order to realize this function, a two-dimensional light source 3 is further arranged between the telecentric lens 12 and the object 4. When the two-dimensional image is shot, the projector 21 is turned off, and the two-dimensional light source 3 provides light source for the telecentric lens 12 to obtain the two-dimensional image of the object 4. Specifically, the two-dimensional light source 3 includes an upper overhead light source 31 and a lower annular light source 32. The overhead light source 31 is provided with a three-color lamp having three channels of red (R), green (G), and blue (B), and different combinations of the channels are selected to emit light of different colors, so that when the light irradiates a copper foil and a low-angle object, the color of an image can be uniform without distortion. Four layers of lamps are arranged on the inner surface of the annular light source 32, namely a first layer of lamps, a second layer of lamps, a third layer of lamps and a fourth layer of lamps which are arranged from bottom to top respectively, the first layer of lamps, the second layer of lamps and the third layer of lamps are monochromatic lamps, and the first layer of lamps, the second layer of lamps and the third layer of lamps comprise three colors of red, green and blue. Optionally, in this embodiment, the color of the first layer of lamps may be red, the color of the second layer of lamps may be green, and the color of the third layer of lamps may be blue; or optionally, the color of the first layer of lamps is green, the color of the second layer of lamps is red, the color of the third layer of lamps is blue, and other types of color distributions are not described herein again. The fourth layer of lamps is a three-color lamp with R, G, B three channels, and different colors of light can be irradiated by selecting different channel combinations. The ring light source 32 is used in conjunction with the overhead light source 31 to acquire a color two-dimensional image of the object 4. Further, a light-transmitting hole (not shown) is formed in the middle of the overhead light source 31, and light rays of the two-dimensional light source 3 are irradiated to the object 4, reflected by the surface of the object 4, and then pass through the light-transmitting hole to reach the telecentric lens 12, so that object imaging is realized. In the case of the telecentric lens 12, it is required that the light rays incident into the telecentric lens 12 are parallel to the optical axis of the telecentric lens 12, and therefore the diameter of the light transmission hole of the overhead light source 31 is ensured to be at least larger than the outer diameter of the telecentric lens 12 so as to ensure that the light rays reflected by the object 4 arrive at the telecentric lens 12 in parallel. Alternatively, the overhead light source 31 may be a flat light source, which illuminates downward. When the flat light source is adopted, the light holes with larger sizes are required to be formed in the flat light source, so that the number of lamps on the flat light source is undoubtedly reduced, the brightness of the flat light source is further reduced, light rays irradiated on the object 4 are reduced, and imaging is dark. Therefore, preferably, the top-mounted light source 31 in this embodiment is a cone-shaped light source, which is a horn-shaped structure with a narrow top and a wide bottom, and this is provided, although the light-transmitting hole still needs to be opened on the top-mounted light source 31, the inner surface of the cone-shaped light source can be provided with more lamps than a flat light source, and the horn-shaped structure can function to collect light, so that more light can be irradiated onto the object 4, and the image is not dark.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A detection apparatus for detecting a three-dimensional shape of an object, comprising a projection unit (2) and an imaging acquisition unit (1), wherein the imaging acquisition unit (1) comprises a camera (11) and a telecentric lens (12) configured on the camera (11), and the telecentric lens (12) is arranged right above an object (4);
The projection unit (2) comprises at least three projection light machines (21); the at least three projection optical machines (21) are circumferentially and uniformly distributed on the periphery of the telecentric lens (12) by taking the optical axis of the telecentric lens (12) as a central axis.
2. The detection device according to claim 1, wherein the projection unit (2) further comprises an optical path switching mechanism; the light path conversion mechanism comprises at least three reflector assemblies (22), and one reflector assembly (22) is arranged below the light emergent surface of each projection optical machine (21); the grating stripes generated by the projection optical machine (21) are reflected by the reflecting mirror assembly (22) through an optical path and then reach the object (4).
3. the inspection device of claim 2, wherein the mirror assembly (22) includes a first mirror (221) and a second mirror (222), the first mirror (221) being disposed proximate to an optical axis of the telecentric lens (12) and the second mirror (222) being disposed distal from the optical axis of the telecentric lens (12);
The reflecting surface of the first reflecting mirror (221) deviates from the optical axis setting of the telecentric lens (12), the reflecting surface of the second reflecting mirror (222) faces the optical axis setting of the telecentric lens (12), and the grating stripes generated by the projection light machine (21) are sequentially projected onto the object (4) through the reflecting surface of the first reflecting mirror (221) and the reflection of the reflecting surface of the second reflecting mirror (222).
4. the inspection device of claim 3, wherein the reflecting surface of the first mirror (221) is at an angle to the optical axis of the telecentric lens (12) in the range of [68 °, 72 ° ]; the included angle range between the reflecting surface of the second reflecting mirror (222) and the optical axis of the telecentric lens (12) is [43 degrees ] and 47 degrees ].
5. The detection device according to claim 3, wherein the projection unit (2) further comprises an adjusting frame (25), each projection light machine (21) is disposed on an upper portion of the adjusting frame (25) through a light machine support (23), and each mirror assembly (22) is disposed on a lower portion of the adjusting frame (25) through a mirror support (24).
6. The detection device according to claim 5, wherein the position of the opto-mechanical support (23) relative to the adjustment frame (25) is adjustable.
7. The detection device according to claim 5, wherein the mirror support (24) comprises a first sub support (241) and a second sub support (242), the first mirror (221) being provided on the first sub support (241) and the second mirror (222) being provided on the second sub support (242); the first sub-bracket (241) is fixedly arranged at the lower part of the adjusting bracket (25);
the position of the second sub-bracket (242) relative to the adjusting bracket (25) is adjustable.
8. The detection apparatus according to claim 7, wherein the mirror support (24) further comprises a connection rod (243), the connection rod (243) fixedly connecting the first sub support (241) and the second sub support (242); the number of the connecting rods (243) is two, and the two connecting rods (243) are symmetrically arranged on two sides of the first sub-bracket (241) and the second sub-bracket (242).
9. The detection apparatus according to claim 8, characterized in that the position of the connecting rod (243) relative to the second sub bracket (242) is adjustable to accommodate a change in the position of the second sub bracket (242) at the adjustment bracket (25).
10. the detection apparatus according to claim 1, wherein a two-dimensional light source (3) is further arranged between the telecentric lens (12) and the object (4); the two-dimensional light source (3) comprises an upper overhead light source (31) and a lower ring light source (32), the ring light source (32) being used in cooperation with the overhead light source (31) for acquiring a color two-dimensional image of the object (4).
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| CN201920487902.0U CN209764029U (en) | 2019-04-11 | 2019-04-11 | Detection device for detecting three-dimensional shape of object |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252685A (en) * | 2021-04-30 | 2021-08-13 | 博众精工科技股份有限公司 | Chip detector |
| CN114646276A (en) * | 2020-12-17 | 2022-06-21 | 广州视源电子科技股份有限公司 | Three-dimensional optical detection device |
| CN116500851A (en) * | 2023-06-30 | 2023-07-28 | 苏州华兴源创科技股份有限公司 | 3D imaging system, calibration method, device, equipment and storage medium thereof |
| CN116819857A (en) * | 2023-08-22 | 2023-09-29 | 苏州默然光电科技有限公司 | Lighting unit, visual detection system and method thereof |
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2019
- 2019-04-11 CN CN201920487902.0U patent/CN209764029U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646276A (en) * | 2020-12-17 | 2022-06-21 | 广州视源电子科技股份有限公司 | Three-dimensional optical detection device |
| CN113252685A (en) * | 2021-04-30 | 2021-08-13 | 博众精工科技股份有限公司 | Chip detector |
| CN116500851A (en) * | 2023-06-30 | 2023-07-28 | 苏州华兴源创科技股份有限公司 | 3D imaging system, calibration method, device, equipment and storage medium thereof |
| CN116500851B (en) * | 2023-06-30 | 2023-09-08 | 苏州华兴源创科技股份有限公司 | 3D imaging system, calibration method, device, equipment and storage medium thereof |
| CN116819857A (en) * | 2023-08-22 | 2023-09-29 | 苏州默然光电科技有限公司 | Lighting unit, visual detection system and method thereof |
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