CN210720729U - Distance measurement imaging device and analysis detection system - Google Patents
Distance measurement imaging device and analysis detection system Download PDFInfo
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- CN210720729U CN210720729U CN201921599775.XU CN201921599775U CN210720729U CN 210720729 U CN210720729 U CN 210720729U CN 201921599775 U CN201921599775 U CN 201921599775U CN 210720729 U CN210720729 U CN 210720729U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 136
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- 230000001902 propagating effect Effects 0.000 claims abstract description 12
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Abstract
The utility model discloses a distance measurement imaging device and an analysis and detection system, wherein, the distance measurement imaging device comprises an imaging unit, a light distance measurement unit, a light splitting piece and an adjusting unit; the imaging unit is used for displaying and imaging an object to be detected, the object to be detected is provided with a surface to be detected facing the imaging unit, and the surface to be detected is displayed and imaged on the imaging unit through a first light path; the optical ranging unit is fixedly connected with the imaging unit and used for receiving light rays reflected by the surface to be measured through the second light path; the light splitting piece is arranged on the first light path and splits a reflected light beam on the surface of the object to be detected into a first light beam propagating along the first light path and a second light beam propagating along the second light path; the adjusting unit is connected with the imaging unit and at least can drive the imaging unit to move towards the direction close to the object to be measured or far away from the object to be measured. The utility model discloses technical scheme has improved the efficiency of the clear image that acquires the object surface that awaits measuring.
Description
Technical Field
The utility model relates to an imaging detection technical field, in particular to range finding imaging device and applied this range finding imaging device's analysis detecting system.
Background
In a compact visual inspection system, with the requirement for measurement accuracy increasing, generally to reach a micron or submicron level, images of two or more different surfaces are generally acquired for inspection. At present, when the same camera is used for detecting surfaces to be detected with different heights, firstly, a distance meter is arranged right above the surface to be detected, and the height from the distance meter to the surface to be detected is detected; then the distance measuring instrument is moved away, the camera is moved to the position right above the surface to be detected, the height of the camera is correspondingly adjusted according to the detected height, and focusing operation is completed.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a range finding image device aims at improving the efficiency of the image that acquires the face of waiting to detect.
In order to achieve the above object, the present invention provides a distance measuring and imaging device, which comprises an imaging unit, a light distance measuring unit, a light splitting element and an adjusting unit; the imaging unit is used for displaying and imaging an object to be detected, the object to be detected is provided with a surface to be detected facing the imaging unit, and the surface to be detected displays and images on the imaging unit through a first light path; the optical ranging unit is fixedly connected with the imaging unit and used for receiving light rays reflected by the surface to be measured through a second light path; the light splitting piece is arranged on the first light path and splits a reflected light beam on the surface of the object to be detected into a first light beam propagating along the first light path and a second light beam propagating along the second light path; the adjusting unit is connected with the imaging unit and at least can drive the imaging unit to move towards the direction close to the object to be detected or far away from the object to be detected.
Optionally, the light splitting component is a light splitting prism, and the light splitting prism has a light splitting surface, and the light splitting surface is used for splitting the reflected light beam on the surface of the object to be measured into the transmitted first light beam and the reflected second light beam.
Optionally, a reflecting mirror located between the optical ranging unit and the light splitting element is further disposed on the second optical path; the second light beam passes through the mirror to form a third light beam parallel to the first light beam, the third light beam propagating along the second optical path.
Optionally, the splitting surface is parallel to the reflecting surface of the reflector, and the splitting surface and the first light beam are arranged at an included angle of 45 degrees.
Optionally, the adjusting unit comprises a nut and a screw, the nut is in threaded connection with the screw, and the screw is connected with the imaging unit; the axial direction of the screw is consistent with the direction from the imaging unit to the object to be measured.
Optionally, the adjusting unit is a cylinder, the cylinder has a cylinder body and a piston rod slidably connected in the cylinder body, and the piston rod is connected with the imaging unit; the length extension direction of the piston rod is consistent with the direction from the imaging unit to the object to be detected.
Optionally, the distance measurement imaging device further comprises a control unit, and the light distance measurement unit, the imaging unit and the adjusting unit are all electrically connected with the control unit.
Optionally, the distance measurement imaging device further comprises a display panel electrically connected with the optical ranging unit to display the distance value from the optical ranging unit to the surface to be measured.
Optionally, the range-finding imaging device comprises a housing, and the imaging unit, the light ranging unit and the light splitting element are all disposed in the housing.
The utility model also provides an analysis and detection system, including analysis unit and range finding image device, the range finding image device includes imaging element, light range unit, beam splitter and regulating unit; the imaging unit is used for displaying and imaging the surface of an object to be measured, the object to be measured is provided with a plurality of surfaces to be measured, the surfaces to be measured face the imaging unit, and one surface to be measured is focused and displayed on the imaging unit through a first light path for imaging; the optical ranging unit is fixedly connected with the imaging unit and used for receiving light rays reflected by the surface to be measured through a second light path; the light splitting piece is arranged on the first light path and splits a reflected light beam on the surface of the object to be detected into a first light beam propagating along the first light path and a second light beam propagating along the second light path; the adjusting unit is connected with the imaging unit and at least can drive the imaging unit to move towards the direction close to the object to be detected or away from the object to be detected; the analysis unit is electrically connected with the imaging unit.
The utility model discloses technical scheme is through setting up the beam split piece at first light path, then can be divided into along the first light beam that first light path propagated and the second light beam that propagates along the second pipeline by the beam split piece of object surface reflection that awaits measuring to when the imaging element is just to the surface of the object that awaits measuring, both can realize the face that awaits measuring and image in the effect of imaging element, can realize the effect that the optical ranging unit surveyed the path length value of second light path again. Furthermore, the imaging unit is driven to move to a specific position towards the direction close to or far away from the object to be detected by the adjusting unit according to the path length value of the second optical path, so that the imaging unit can present a clear image of the surface of the object to be detected, the step of switching the positions of the optical ranging unit and the imaging unit back and forth is avoided, and the efficiency of obtaining the clear image of the surface of the object to be detected is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the range-finding imaging device of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
200 | Optical ranging |
| 300 | |
310 | |
| 400 | |
410 | Reflecting |
| 500 | Object to be measured | 510 | Surface to be measured |
| 610 | |
710 | |
| 720 | |
800 | |
| 900 | Lighting lamp |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a range finding image device.
In the embodiment of the present invention, as shown in fig. 1, the ranging and imaging apparatus includes an imaging unit 100, an optical ranging unit 200, a light splitter 300, and an adjusting unit (not shown); the imaging unit 100 is configured to display an image of an object 500 to be measured, where the object 500 to be measured has a surface 510 to be measured facing the imaging unit 100, and the surface 510 to be measured displays an image on the imaging unit 100 through a first optical path (i.e., a solid arrow path between the surface 510 to be measured and the imaging unit 100 in fig. 1); the optical ranging unit 200 is fixedly connected with the imaging unit 100, and the optical ranging unit 200 is used for receiving light reflected by the surface 510 to be measured through a second light path (i.e. a path shown by a dotted line in fig. 1); the light splitting member 300 is disposed on the first light path, and splits the reflected light beam on the surface of the object 500 to be measured into a first light beam 610 propagating along the first light path and a second light beam 710 propagating along the second light path; the adjusting unit is connected to the imaging unit 100 and can at least drive the imaging unit 100 to move toward the direction close to the object 500 or away from the object 500.
The surface 510 to be measured of the object 500 to be measured reflects light under the illumination lamp 900 or sunlight, and passes through the transmission of the first optical path, the imaging unit 100 receives the reflected light of the surface 510 to be measured, so as to form a display image, the object 500 to be measured has a plurality of surfaces 510 to be measured facing the imaging unit 100, and the surface 510 to be measured can be focused and displayed on the imaging unit 100 to form an image through the first optical path. The optical ranging unit 200 can emit light to a surface 510 to be measured of the object 500 to be measured, and can also receive the reflected light reflected by the surface 510 to be measured, and calculate the time from the emission to the back emission through a timer, thereby calculating the distance from the optical ranging unit 200 to the surface 510 to be measured. Further, when the imaging unit 100 is disposed over against a surface 510 to be measured of the object 500 to be measured, and the optical ranging unit 200 is fixedly connected to the imaging unit 100, a distance from the optical ranging unit 200 to the surface 510 to be measured and a distance from the imaging unit 100 to the surface 510 to be measured have a certain conversion relationship, that is, a path length value of the second optical path and a path length value of the first optical path have a certain conversion relationship; therefore, when the length of the second optical path is known, the imaging unit 100 can be adjusted to move a certain distance through the adjusting unit, so that the surface 510 to be measured can be clearly imaged on the imaging unit 100.
Specifically, for example, based on the state that the light-emitting direction of the optical ranging unit 200 is the same as the lens direction of the imaging unit 100, and the lens direction of the imaging unit 100 is opposite to the surface to be measured 510, if the path length of the second optical path is 10cm during the first focusing test, the imaging unit 100 fixedly connected to the second optical path may obtain a clear image of the surface to be measured 510; based on the above state, when detecting another surface to be measured 510, if the length of the second optical path is detected to be 12cm, the imaging unit 100 may be moved by 2cm in a direction approaching the surface to be measured 510 by the adjusting unit; if the length of the second optical path is detected to be 8cm, the adjusting unit can drive the imaging unit 100 to move 2cm in the direction away from the surface 510 to be measured. Of course, in other embodiments, the light-emitting direction of the light ranging unit 200 may be different from the lens orientation of the imaging unit 100, for example, the light-emitting direction of the light ranging unit 200 may be perpendicular to the lens orientation of the imaging unit 100 or may be set at an acute angle, and after the length of the second light path is measured, the distance that the imaging unit 100 should move can be calculated according to a certain calculation formula, so that the scheme that the to-be-measured surface 510 clearly images on the imaging unit 100 is ensured within the protection scope of the present invention.
Further, the distance measurement imaging device may further include a controller and a calculating unit, both the calculating unit and the adjusting unit are electrically connected to the controller, the calculating unit is configured to calculate a distance that the imaging unit 100 should move according to the measured path length value of the second optical path, and then the controller controls the adjusting unit to move so as to drive the imaging unit 100 to move. It is understood that the calculation formula stored in the calculation unit can be integrated according to the specific positions and angles at which the imaging unit 100 and the light ranging unit 200 are installed.
The utility model discloses technical scheme is through setting up beam splitter 300 at first light path, then the light beam by 500 surface reflections of the object that awaits measuring can be divided into along the first light beam 610 that first light path propagated and along the second light beam 710 that the second pipeline propagated by beam splitter 300 to only when imaging element 100 is just to the surface of the object 500 that awaits measuring, both can realize the face 510 that awaits measuring and form images in imaging element 100's effect, can realize the path length value that optical distance unit 200 surveyed the second light path again. Further, the imaging unit 100 can present a clear image of the surface of the object 500 to be measured only by the adjusting unit driving the imaging unit 100 to move to a specific position in the direction close to the object 500 to be measured or far from the object 500 to be measured according to the distance, so that the step of switching the positions of the optical ranging unit 200 and the imaging unit 100 back and forth is avoided, and the efficiency of acquiring the clear image of the surface of the object 500 to be measured is improved.
Further, as shown in fig. 1, the light splitting member 300 is a light splitting prism having a light splitting surface 310, and the light splitting surface 310 is used for splitting the reflected light beam on the surface of the object 500 to be measured into a transmitted first light beam 610 and a reflected second light beam 710.
With such an arrangement, when the light reflected by the surface to be measured 510 passes through the splitting surface 310, a part of the light directly transmits to form the first light beam 610, and another part of the light forms the second light beam 710 by reflection, and since the second light beam 710 is a part of the light beam of the second light path, the light reflected by the surface to be measured 510 can be received by the optical ranging unit 200; further, in a state where the imaging unit 100 is directly facing the surface to be measured 510, the surface to be measured 510 can be imaged on the imaging unit 100 through the first light beam 610, and an effect of measuring a path length value of the second light path can be achieved through the optical ranging unit 200. Of course, the light splitter 300 may also be a grating light splitter in other embodiments, and a light splitting prism may be used for simplicity in the present embodiment.
Further, as shown in fig. 1, a reflecting mirror 400 is further disposed on the second light path between the light ranging unit 200 and the light splitting element 300; second light beam 710 passes through mirror 400 to form third light beam 720 parallel to first light beam 610, and third light beam 720 travels along a second optical path.
With such an arrangement, the distance traveled by the imaging unit 100 can be easily calculated and adjusted according to the distance from the optical distance meter to the surface 510 to be measured. For example, based on the scheme that the third light beam 720 is parallel to the first light beam 610, if the distance from the optical distance meter to the surface 510 to be measured is a1 during the initial commissioning, the imaging unit 100 fixedly connected to the optical distance meter can obtain a clear image of the surface 510 to be measured; when the other surface to be measured 510 is inspected, the optical distance meter measures that the distance to the other surface to be measured 510 is a2(a2 > a1), and the imaging unit 100 is driven by the adjusting unit to move (a2-a1) in a direction close to the other surface to be measured 510. This facilitates calculation of the distance to be adjusted by the imaging unit 100. In addition, the arrangement can also enable the internal structure of the ranging imaging device to be more compact in installation and smaller in occupied space.
Further, as shown in fig. 1, in the embodiment, the reflecting mirror 400 has a reflecting surface 410, the reflecting surface 410 is disposed parallel to the light splitting surface 310, and the light splitting surface 310 and the first light beam 610 form an included angle of 45 °. So arranged, the effect of the first light beam 610 being parallel to the third light beam 720 can be achieved relatively easily.
In order to be able to drive the imaging unit 100 to move through the adjusting unit so as to be close to the object 500 to be measured or to be far away from the object 500 to be measured, the utility model provides an embodiment: the adjusting unit includes a nut (not shown) threadedly coupled with the screw, and a screw (not shown) coupled with the image forming unit 100; the axial direction of the screw coincides with the direction from the imaging unit 100 to the object 500 to be measured.
With such an arrangement, the screw rod can be further driven to move along the axial direction thereof by rotating the driving nut, so as to achieve the effect of driving the imaging unit 100 to move. It is understood that in the present embodiment, the nut is in transmission connection with the motor, and the motor can drive the nut to rotate forward or backward, and it is understood that the nut rotates forward or backward to drive the imaging unit 100 to move toward the direction close to the surface to be measured 510 or away from the surface to be measured 510.
Of course, in other embodiments, the nut and screw may be replaced by a gear and rack, respectively, or the nut and screw may be replaced by a worm gear and worm, respectively.
The utility model discloses still provide another kind of embodiment: the adjusting unit is a cylinder (not shown) having a cylinder body (not shown) and a piston rod (not shown) slidably connected in the cylinder body, the piston rod being connected with the imaging unit 100; the length of the piston rod extends in the same direction as the direction from the imaging unit 100 to the object 500. With this arrangement, the imaging unit 100 can be driven to move directly through the piston rod of the air cylinder to move in a direction approaching the surface to be measured 510 or in a direction away from the surface to be measured 510.
Further, in order to automatically drive the imaging unit 100 to move through the adjusting unit according to the path length value of the second optical path measured by the optical ranging unit 200, in this embodiment, the ranging imaging device further includes a control unit (not shown), and the optical ranging unit 200, the imaging unit 100 and the adjusting unit are all electrically connected to the control unit.
Specifically, after the optical ranging unit 200 measures the path length of the second optical path, the length signal is sent to the control unit, so that the control unit controls the adjusting unit to drive the imaging unit 100 to move according to the length signal, so that the imaging unit 100 automatically moves to a position where the surface to be measured 510 can be clearly imaged.
Further, the ranging imaging apparatus further includes a display panel (not shown) electrically connected to the optical ranging unit 200 to display a distance value from the optical ranging unit 200 to the surface 510 to be measured.
It can be understood that, when the control unit is damaged or does not exist, the adjusting unit can be manually driven by observing the path length value of the second optical path on the display panel, and then the imaging unit 100 is driven to move by the adjusting unit, so that the imaging unit 100 moves to a position where the surface to be measured 510 can be clearly imaged.
Further, as shown in fig. 1, the ranging imaging apparatus includes a housing 800, and the imaging unit 100, the optical ranging unit 200, and the light splitter 300 are disposed in the housing 800.
Of course, in addition, the distance-measuring imaging device may further include an illumination lamp 900, the illumination lamp 900 is disposed between the light-splitting element 300 and the surface 510 to be measured, and the illumination lamp 900 is used to illuminate the surface 510 to be measured. The illumination lamp 900 may also be provided inside the housing 800.
The utility model discloses still provide an analysis and detection system, this analysis and detection system include analysis unit and range finding image device, and this range finding image device's concrete structure refers to above-mentioned embodiment, because this analysis and detection system has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary details one by one here. Wherein the analyzing unit is electrically connected to the imaging unit 100.
After the imaging unit 100 images a clear image of the surface 510 to be detected, the imaging unit 100 may send the image to the analysis unit, so that the analysis unit may further analyze the image of the surface 510 to be detected, so as to achieve an effect of analyzing and detecting the surface 510 to be detected of the object 500 to be detected.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A range imaging apparatus, comprising:
the imaging unit is used for displaying and imaging an object to be detected, the object to be detected is provided with a surface to be detected facing the imaging unit, and the surface to be detected displays and images on the imaging unit through a first light path;
the optical ranging unit is fixedly connected with the imaging unit and used for receiving light rays reflected by the surface to be measured through a second light path;
the light splitting piece is arranged on the first light path and splits a reflected light beam on the surface of the object to be detected into a first light beam propagating along the first light path and a second light beam propagating along the second light path; and
and the adjusting unit is connected with the imaging unit and at least can drive the imaging unit to move towards the direction close to or far away from the object to be detected.
2. A ranging imaging apparatus according to claim 1, wherein said beam splitter is a beam splitter prism having a beam splitting surface for splitting the reflected beam of the surface of the object to be measured into the transmitted first beam and the reflected second beam.
3. The range imaging apparatus of claim 2 wherein a mirror is further disposed on said second optical path between said optical ranging unit and said beam splitter; the second light beam passes through the mirror to form a third light beam parallel to the first light beam, the third light beam propagating along the second optical path.
4. A ranging imaging apparatus according to claim 3, wherein said beam splitting surface is arranged parallel to the reflecting surface of said reflector, said beam splitting surface being arranged at an angle of 45 ° to said first light beam.
5. A ranging imaging apparatus according to any of claims 1 to 4, characterized in that said adjusting unit comprises a nut and a screw, said nut being threaded onto said screw, said screw being connected to said imaging unit; the axial direction of the screw is consistent with the direction from the imaging unit to the object to be measured.
6. A ranging imaging apparatus according to any of claims 1 to 4, characterized in that said adjusting unit is a cylinder having a cylinder body and a piston rod slidably connected in said cylinder body, said piston rod being connected to said imaging unit; the length extension direction of the piston rod is consistent with the direction from the imaging unit to the object to be detected.
7. A range imaging apparatus according to any one of claims 1 to 4 further comprising a control unit, said light ranging unit, said imaging unit and said adjusting unit being electrically connected to said control unit.
8. A range imaging apparatus according to any of claims 1 to 4 further comprising a display panel electrically connected to said light ranging unit to display the path length value of said second light path.
9. A range imaging apparatus according to any of claims 1 to 4 comprising a housing, the imaging unit, the light ranging unit and the light splitting element all being disposed within the housing.
10. An analytical detection system comprising an analytical unit and a range imaging apparatus according to any one of claims 1 to 9, the analytical unit being electrically connected to the imaging unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599775.XU CN210720729U (en) | 2019-09-23 | 2019-09-23 | Distance measurement imaging device and analysis detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599775.XU CN210720729U (en) | 2019-09-23 | 2019-09-23 | Distance measurement imaging device and analysis detection system |
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| CN210720729U true CN210720729U (en) | 2020-06-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970750A (en) * | 2021-12-23 | 2022-01-25 | 华芯半导体研究院(北京)有限公司 | Measuring device and glove box |
| CN114509004A (en) * | 2022-02-25 | 2022-05-17 | 重庆电子工程职业学院 | Measuring method and measuring device based on machine vision |
-
2019
- 2019-09-23 CN CN201921599775.XU patent/CN210720729U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970750A (en) * | 2021-12-23 | 2022-01-25 | 华芯半导体研究院(北京)有限公司 | Measuring device and glove box |
| CN114509004A (en) * | 2022-02-25 | 2022-05-17 | 重庆电子工程职业学院 | Measuring method and measuring device based on machine vision |
| CN114509004B (en) * | 2022-02-25 | 2023-05-16 | 重庆电子工程职业学院 | Measuring method and measuring device based on machine vision |
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Granted publication date: 20200609 |