CN201555562U - Lens seat used for measuring device - Google Patents
Lens seat used for measuring device Download PDFInfo
- Publication number
- CN201555562U CN201555562U CN2009202205161U CN200920220516U CN201555562U CN 201555562 U CN201555562 U CN 201555562U CN 2009202205161 U CN2009202205161 U CN 2009202205161U CN 200920220516 U CN200920220516 U CN 200920220516U CN 201555562 U CN201555562 U CN 201555562U
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- laser
- mirror slip
- optical mirror
- under test
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- 230000003287 optical effect Effects 0.000 claims abstract description 61
- 238000012360 testing method Methods 0.000 claims description 48
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 23
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002356 laser light scattering Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model provides a lens seat used for a measuring device, comprising a seat body which can be combined with the lens of the measuring device and a laser sensing unit which is combined with the seat body; the seat body is internally provided with an optical lens so as to correspond to an object to be measured; the laser sensing unit comprises a laser unit capable of emitting laser and a sensing unit capable of receiving laser; the laser unit corresponds to the first optical lens so as to reflect the laser emitted by the laser unit to the object to be measured; and the sensing unit receives the laser dispersed by the object to be measured. In the utility model, the laser sensing unit is combined with the lens of the measuring device by the seat body; the images of the object to be measured are captured for measurement and the height position of the surface of the object to be measured can be exactly measured by the laser sensing unit simultaneously, thus achieving the requirement of high measuring exactness and good precision.
Description
Technical field
The utility model relates to a kind of lens mount that is used for measuring equipment, relates in particular to a kind of camera lens that is incorporated into measuring equipment and reaches the lens mount that body surface to be measured is just carried out accurately measuring by laser with acquisition object under test image.
Background technology
As shown in Figure 4, be existing image measuring device, it has one for the platform 72 of putting object under test 71, there is the camera lens (CCD) 73 of a measurement usefulness these platform 72 tops, in camera lens 73 places and be equiped with a luminescence unit 74, in order to allow below object under test 71 when measuring, have bright environment, in order to the image of camera lens (CCD) 73 acquisition objects under test 71.
And when object under test 71 surfaces had height fall (height difference), this type of device in the differing heights position, imposed different Zoom effects, thereby obtains the altitude information of diverse location on the object under test 71 usually by the mode of zoom.
Yet, it only utilizes the mode of zoom to measure height, usually be difficult for being adjusted to degree clearly because of camera lens 73 focusing easily, thereby make the height on the height that measures by zoom and actual object under test 71 surfaces produce bigger error, that is, the image measuring device of this type has accurate inadequately, measures the lower problem of precision.
Moreover aforementioned luminescence unit 74 in order to illumination only can be made the usefulness of large-area illumination, if must illuminate especially doing the part than the small size place, when improving its image measurement precision, probably feels inadequate, and influences the effect of its measurement.
The utility model content
Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and provide a kind of lens mount that is used for measuring equipment, be to utilize a pedestal laser sensing cell to be incorporated into the camera lens place of measuring equipment, at acquisition object under test image measurement simultaneously, can sharp laser sensing cell accurately measuring to the high and low position on object under test surface, so as to reaching the accuracy of measurement height, the demand that precision is good.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of lens mount that is used for measuring equipment, it is characterized in that, this lens mount comprises: a pedestal, has an axial passage in this pedestal, this passage one end is a binding end, and for the camera lens in conjunction with this measuring equipment, and this passage other end is a far vane, for a corresponding object under test, and be provided with one first optical mirror slip in this passage; One laser sensing cell, this laser sensing cell comprise that the laser cell and that can launch laser can receive the sensing cell of laser; This laser cell is positioned at passage one side of this pedestal, and to should first optical mirror slip, this first optical mirror slip for this laser cell institute emitted laser of reflection to the pairing object under test of the far vane of this passage; This sensing cell is positioned at this pedestal opposite side of this laser cell relatively, for the laser that receives this object under test scattering.
The aforesaid lens mount that is used for measuring equipment, wherein first optical mirror slip is half reflecting optics, also penetrates for the image of object under test for reflector laser.
The aforesaid lens mount that is used for measuring equipment wherein is provided with a collector lens and an optical sensor in the sensing cell, the laser that scatters for this object under test is received by this optical sensor after wearing and penetrating this collector lens.
The aforesaid lens mount that is used for measuring equipment, wherein lens mount more includes an axis light unit, this axis light unit comprises a light emitting source and one second optical mirror slip, this light emitting source is positioned at this pedestal one side, and this second optical mirror slip is positioned on the beam path of this light emitting source, for the reflection this light emitting source light beam to the pairing object under test of the far vane of this passage.
The aforesaid lens mount that is used for measuring equipment, wherein the laser cell of axis light unit and this laser sensing cell is located at this pedestal the same side, second optical mirror slip of this axis light unit is positioned on the beam path of this light emitting source and to should first optical mirror slip, and this laser cell is to should second optical mirror slip.
The aforesaid lens mount that is used for measuring equipment, wherein second optical mirror slip is half reflecting optics, light beam to this first optical mirror slip for this light emitting source of reflection reflects this again to this object under test, and this second optical mirror slip also reflexes to this object under test again for laser penetration to this first optical mirror slip of this laser cell.
The aforesaid lens mount that is used for measuring equipment, wherein laser cell is a laser diode.
The beneficial effects of the utility model are, be to utilize a pedestal laser sensing cell to be incorporated into the camera lens place of measuring equipment, at acquisition object under test image measurement simultaneously, can sharp laser sensing cell accurately measuring to the high and low position on object under test surface, so as to reaching the accuracy of measurement height, the demand that precision is good.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the light path synoptic diagram of plane of the present utility model and laser.
Fig. 2 is the light path synoptic diagram of axis light of the present utility model.
Fig. 3 is the synoptic diagram when use laser of the present utility model measures object under test.
Fig. 4 is the existing schematic representation of apparatus that measures.
Embodiment
Seeing also Fig. 1 to Fig. 3, is the selected example structure of the utility model shown in the figure.
It below is the embodiment explanation of the utility model " lens mount of measuring equipment ", its measuring equipment is to be example with the noncontact image measuring device, this measuring equipment comprises that one measures the image acquisition unit 13 that platform 11 and is positioned at these measurement platform 11 tops, this image acquisition unit 13 has the camera lens 12 of a fechtable image at least, and this lens mount is incorporated into the end that 12 pairs on this camera lens should measure platform 11.
This lens mount comprises that one is used for a pedestal 2 and the laser sensing cell in conjunction with this pedestal 2 in conjunction with the camera lens 12 of this measuring equipment, wherein:
Has an axial passage 23 in this pedestal 2, these passage 23 1 ends are a binding end 21, and for the camera lens 12 in conjunction with this measuring equipment, and these passage 23 other ends are a far vane 22, for to should measuring the object under test 6 on the platform 11, and be provided with one first optical mirror slip 24 in this passage 23.
This laser sensing cell comprises that the laser cell 3 and that can launch laser can receive the sensing cell 4 of laser, this laser cell 4 is positioned at passage 23 1 sides of this pedestal 2, and to should first optical mirror slip 24, this first optical mirror slip 24 is for the far vane 22 pairing objects under test 6 of 3 emitted laser 31 of this laser cell of reflection to this passage 23, and this sensing cell 4 is positioned at the opposite side of these pedestal 2 relative these laser cells 3, for the laser 31 that receives these object under test 6 scatterings.
In the present embodiment, this laser cell 3 is a laser diode, and this first optical mirror slip 24 is half reflecting optics, also penetrate for reflector laser 31 for the image of object under test 6, and being provided with a collector lens 42 and an optical sensor 43 in this sensing cell 4, the laser 31 that scatters for this object under test 6 is worn and was penetrated these collector lens 42 backs and received by this optical sensor 43.
In addition, this lens mount more includes an axis light unit 5, this axis light unit 5 comprises that one can launch the light emitting source 51 and one second optical mirror slip 52 of light beam, this light emitting source 51 is positioned at this pedestal 2 one sides, and this second optical mirror slip 52 is positioned on the beam path of this light emitting source 51, for the far vane 22 pairing objects under test 6 of the light beam 511 that reflects this light emitting source 51 to this passage 23.
In the present embodiment, this pedestal 2 the same sides are located at the laser cell 3 of this laser sensing cell in this axis light unit 5, second optical mirror slip 52 of this axis light unit 5 is positioned on the beam path of this light emitting source 51 and to should first optical mirror slip 24, and 3 pairs of this laser cells should second optical mirror slip 52, this second optical mirror slip 52 is half reflecting optics, light beam 511 to first optical mirror slips 24 for this light emitting source 51 of reflection, and penetrate into this first optical mirror slip 24 for the laser 31 of this laser cell 3, again by the light beam 511 of these first optical mirror slip, 24 these light emitting sources 51 of reflection and the laser 31 that reflects this laser cell 3 to this object under test 6.
See also Fig. 1, when measuring, it is the image that captures these objects under test 6 by the camera lens 12 of this image acquisition unit 13 through the passage 23 of this pedestal 2, and by this laser cell 3 emissions one laser 31, after penetrating this second optical mirror slip 52 earlier, reflect downwards through this first optical mirror slip 24 again, and the laser 31 after the reflection is projected on the surface of this object under test 6, thereby produce the situation of scattering, in the process of scattering, by the collector lens 42 of this sensing cell 4 and the setting of optical sensor 43, allowing the laser of scattering wear from this collector lens 42 penetrated, wear and penetrate the back and further be incident upon this optical sensor 43 places, be passed to computing machine (not shown) place by this optical sensor 43 sensings reception and with signal, make image by computing machine with this signal and by these camera lens 12 captured images, the processing combination of signal etc., thus the accurate height of object under test 6 obtained in the diverse location place.
See also Fig. 2 again, if desire is observed less localized positions on the object under test 6, can open this axis light unit 5, light beam 511 projection downwards that makes its light emitting source 51 is after this second optical mirror slip 52 reflexes to first optical mirror slip 24, reflect local location 61 places again down to these object under test 6 surfaces, so, can allow these local location 61 places obtain to concentrate and bright light illumination, thereby on the image measurement of local location 61, obtain the preferable quality of image.
Other says it, the technology that above-mentioned the utility model adopted is the further research and development of the technological concept of laser displacement gauge, and utilize laser displacement gauge to have an enormous advantage as measuring tool, because laser is a collimated monochromatic ligth bundle, when being radiated on the object under test surface, along the intensity of reflected light of its reflection angle direction, two kinds of surface reflection patterns are arranged: i.e. mirror formula reflection (Specular) and diffuse transmission type reflection (Scattering) two kinds.The mirror formula reflects on the surface that mainly occurs in as its name suggests as minute surface, and its incident direction of light equals catoptrical direction, and another diffuse transmission type reflection then occurs on the more coarse working surface.
As shown in Figure 3, laser displacement gauge utilizes the diffuse transmission type principle of reflection exactly and designs usually, and adopts laser triangulation principle (Triangulation) to do metrology applications.Laser 31 is incident upon arbitrary surface and produces luminous point, and the laser of part is gone up scattering (Scattering) from the surface, pass through the focusing of collector lens 42 then after projection on optical sensor 43.The optical triangulation method has been used on the range sensor (Distance Sensors) and tridimensional profile measurement system at robotic arm, if the displacement of Δ y about in the of is made on these object under test 6 surfaces, therefore then luminous point moves along the path direction of laser beam, also causes luminous point on the optical sensor 43 to do the displacement of a Δ x along optical sensor 43.Wherein Δ y is directly proportional with Δ x.This on optical sensor 43 displacement of image just can determine the displacement Δ y on object under test 6 surfaces.When being applied in the free form surface profile measurement that just rises and falls, can measure the position that each point is gone up on the surface, this is optical triangulation measurement method principle just.
In sum, the utility model is incorporated into the laser sensing cell by a pedestal camera lens place of measuring equipment as can be known, at acquisition object under test image measurement simultaneously, provide laser on object under test, to do scattering with laser cell, and behind laser light scattering, collects its scattered beam by collector lens and optical sensor, therefrom go interpretation to obtain the height number of the surperficial diverse location of object under test, whereby, can obtain measuring more accurately numerical value, to improve the precision that measures.
In addition, by the axis light unit of setting up, can do the projection of axis light to the local Xiao Chu position on the object under test, concentrate light source and present bright state thereby allow this place have, can allow this of object under test be in thus and obtain the preferable quality of image when measuring.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
In sum, the utility model is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicality, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.
Claims (7)
1. a lens mount that is used for measuring equipment is characterized in that, this lens mount comprises:
One pedestal has an axial passage in this pedestal, this passage one end is a binding end, and for the camera lens in conjunction with this measuring equipment, and this passage other end is a far vane, for a corresponding object under test, and is provided with one first optical mirror slip in this passage;
One laser sensing cell, this laser sensing cell comprise that the laser cell and that can launch laser can receive the sensing cell of laser;
This laser cell is positioned at passage one side of this pedestal, and to should first optical mirror slip, this first optical mirror slip for this laser cell institute emitted laser of reflection to the pairing object under test of the far vane of this passage;
This sensing cell is positioned at this pedestal opposite side of this laser cell relatively, for the laser that receives this object under test scattering.
2. the lens mount that is used for measuring equipment according to claim 1 is characterized in that: described first optical mirror slip is half reflecting optics, also penetrates for the image of object under test for reflector laser.
3. the lens mount that is used for measuring equipment according to claim 1 is characterized in that: be provided with a collector lens and an optical sensor in the described sensing cell, the laser that scatters for this object under test is received by this optical sensor after wearing and penetrating this collector lens.
4. the lens mount that is used for measuring equipment according to claim 1, it is characterized in that: described lens mount more includes an axis light unit, this axis light unit comprises a light emitting source and one second optical mirror slip, this light emitting source is positioned at this pedestal one side, and this second optical mirror slip is positioned on the beam path of this light emitting source, for the reflection this light emitting source light beam to the pairing object under test of the far vane of this passage.
5. the lens mount that is used for measuring equipment according to claim 4, it is characterized in that: the laser cell of described axis light unit and this laser sensing cell is located at this pedestal the same side, second optical mirror slip of this axis light unit is positioned on the beam path of this light emitting source and to should first optical mirror slip, and this laser cell is to should second optical mirror slip.
6. the lens mount that is used for measuring equipment according to claim 5, it is characterized in that: described second optical mirror slip is half reflecting optics, light beam to this first optical mirror slip for this light emitting source of reflection reflects this again to this object under test, and this second optical mirror slip also reflexes to this object under test again for laser penetration to this first optical mirror slip of this laser cell.
7. the lens mount that is used for measuring equipment according to claim 6 is characterized in that: described laser cell is a laser diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202205161U CN201555562U (en) | 2009-10-30 | 2009-10-30 | Lens seat used for measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202205161U CN201555562U (en) | 2009-10-30 | 2009-10-30 | Lens seat used for measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201555562U true CN201555562U (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202205161U Expired - Fee Related CN201555562U (en) | 2009-10-30 | 2009-10-30 | Lens seat used for measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201555562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296652A (en) * | 2014-02-27 | 2015-01-21 | 上海大学 | Optical measuring head based on discrete rotation trigonometry |
-
2009
- 2009-10-30 CN CN2009202205161U patent/CN201555562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296652A (en) * | 2014-02-27 | 2015-01-21 | 上海大学 | Optical measuring head based on discrete rotation trigonometry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |