CN201561742U - Projection three-dimensional measuring device - Google Patents
Projection three-dimensional measuring device Download PDFInfo
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- CN201561742U CN201561742U CN2009201807898U CN200920180789U CN201561742U CN 201561742 U CN201561742 U CN 201561742U CN 2009201807898 U CN2009201807898 U CN 2009201807898U CN 200920180789 U CN200920180789 U CN 200920180789U CN 201561742 U CN201561742 U CN 201561742U
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- projection
- light
- dimensional measuring
- measuring device
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Abstract
The utility model relates to a projection three-dimensional measuring device, which comprises a base. A mounting support is arranged on the base. A moving device in X, Y and Z direction is installed on the base. A detector head comprises an image acquisition device and projection devices. The image acquisition device is installed above an object to be measured. A controller is arranged in the detector head and is respectively connected with the image acquisition device and the projection devices. At least three projector devices are installed on the support and are distributed on at least three sides of an object to be measured. The projection three-dimensional measuring device can more accurately realize the three-dimensional measurement of the object.
Description
Technical field
The utility model relates to a kind of three-dimensional measuring apparatus, is specifically related to a kind of three-dimensional measuring apparatus that utilizes shadow casting technique.
Background technology
At present, existing shadow-free 3 dimension profilometries are bilateral scanning survey modes.Applicant Koh Young Technology Inc., the patent No. of application is disclose following technical characterictic in the patent of 200480003759.X: the directional light of first sidelight source generation before this, the structured light that produces through grating reflects back irradiation measuring object through eyeglass a side, the opposite side light source also produces the opposite side of grating structured light through eyeglass reflection back irradiation measuring object, after grating moves, the both sides light source is scanning one by one alternately, image collecting device is images acquired successively, and the three-dimensional plot that goes out both sides through COMPUTER CALCULATION is realized shadow-free 3 dimension measurements.The bilateral scanning and measuring apparatus has been avoided shadow effect, there are several defectives simultaneously: change when obvious in the object bottom edge, the shade influence is still arranged in the junction of two side directions, particularly when measurement is similar to circular detected materials, because two secondary 3 dimension results are in splicing place, the zero lap part when causing the detected materials rotation, is measured not accurate.
The utility model content
The utility model is at the deficiencies in the prior art, and development and Design goes out a kind of measurement projection measuring device more accurately.
The utility model is achieved through the following technical solutions:
A kind of projection three-dimensional measuring device, comprise base, base is provided with mounting bracket, be equipped with on the base in order to drive the XYZ direction mobile device that detection head device XYZ three directions on measuring object move, detection head comprises image collecting device and projection arrangement, image collecting device is installed in the measurand top, image collecting device comprises photo-electric conversion element, projection arrangement is installed in a side of measurand top image collecting device, be provided with controller in the detection head, controller is connected respectively with projection arrangement with described image collecting device, and at least three described projection arrangements are rack-mount, and is distributed at least three sides of testee.
A kind of projection three-dimensional measuring device, described projection arrangement are evenly distributed on top one side of testee.
A kind of projection three-dimensional measuring device, described projection arrangement comprises light-emitting device, the light-emitting device parallel beneath is provided with the structured light modulating part that is used to produce the candy strip structured light; Structured light modulating part parallel beneath is provided for grating pattern is projected to the projection lens set on measuring object surface; Described controller is connected and composed by bus by image acquisition units, projection control module, calculating and data storage cell; The signal input part of image acquisition units is connected with the signal output part of photo-electric conversion element; The signal output part of projection control module is connected with the signal output part of source of parallel light parts, structured light modulating part respectively.
A kind of projection three-dimensional measuring device is equipped with annular light source under the described projection arrangement, is provided with the ring light control module in the described controller, and the signal input end of annular light source is connected with the ring light control module.
A kind of projection three-dimensional measuring device, described light-emitting device are the source of parallel light parts that are used to produce the led light source of emission white light and are used to produce directional light.
A kind of projection three-dimensional measuring device, described source of parallel light parts are by light-emitting component and lens parallel arrangement successively.
A kind of projection three-dimensional measuring device, described structured light modulating part is by preceding polaroid, transmission-type display element and rear polarizer parallel arrangement successively.
A kind of projection three-dimensional measuring device is characterized in that described projection lens set is by front projection lens combination and back projection lens set parallel arrangement successively.
The utility model is when measuring, each projection arrangement sends white structured light, be radiated on the measuring object successively, the Color Image Acquisition parts are gathered the structured light that shines from 3 angles that reflects from measuring object successively, computing unit calculates the three-dimensional measuring result of 3 angles, owing to obtain each bearing images of testee from three angles, can comprehensively cover each orientation of testee, thereby obtain high anti-interference 3D measurement result, can improve precision the testee three-dimensional measurement.
Description of drawings
Fig. 1 is main TV structure synoptic diagram.
Fig. 2 is the plan structure synoptic diagram.
Embodiment
Shown in accompanying drawing.
Projection three-dimensional measuring device, comprise base 41, base 41 is provided with mounting bracket, be equipped with on the base 41 in order to drive the XYZ direction mobile device that detection head device XYZ three directions on measuring object move, detection head comprises image collecting device 20, projection arrangement 10 and annular light source 30, image collecting device 20 is installed in measurand 40 tops, image collecting device 20 comprises photo-electric conversion element 20a, three projection arrangements 10 are installed in a side of measurand 40 top image collecting devices 20 and evenly distribution, and projection arrangement is equipped with annular light source 30 10 times.Projection arrangement 10 comprises led light source 11a and the source of parallel light parts 11b that is used to produce and launch white light, and led light source 11a parallel beneath is provided with source of parallel light parts 11b; The setting of source of parallel light parts 11b parallel beneath is used to produce the structured light modulating part of candy strip structured light by preceding polaroid 12, transmission-type display element 13 and rear polarizer 14 parallel arrangement successively; The setting of structured light modulating part parallel beneath is organized the projection lens set 15 that parallel arrangement successively is used for grating pattern is projected to the measuring object surface by front projection lens combination 15a and back projecting lens 15b; Controller 1 is connected and composed by bus 1e by image acquisition units 1a, projection control module 1b, ring light control module 1c, calculating and storage unit 1d; The signal input part of image acquisition units 1a is connected with the signal output part of photo-electric conversion element 20a; The signal output part of projection control module 1b is connected with source of parallel light parts 11b, preceding polaroid 12, transmission-type display element 13 and the signal output part of rear polarizer 14 respectively.The signal input end of annular light source 30 is connected with ring light control module 1c.
When measuring, controller 1 is set three projection arrangements 10 and is in the White Light Projection state, and three angle projection arrangements 10 of order opening and closing are measured one by one, and image collecting device 20 is taken pictures successively, learns the height value of measuring object after phase demodulating.Three phase place striated structure light modes need to gather nine pictures, are 3N collection; Four phase place striated structure light modes need to gather 12 pictures, are 3N collection.Obtain height measurement results successively three times, when averaging, require to reject the shade value according to the gray scale limit.Realize the high anti-interference height measurement of high precision.
Claims (8)
1. projection three-dimensional measuring device, comprise base, base is provided with mounting bracket, be equipped with on the base in order to drive the XYZ direction mobile device that detection head device XYZ three directions on measuring object move, detection head comprises image collecting device and projection arrangement, image collecting device is installed in the measurand top, image collecting device comprises photo-electric conversion element, projection arrangement is installed in a side of measurand top image collecting device, be provided with controller in the detection head, controller is connected respectively with projection arrangement with described image collecting device, it is characterized in that at least three described projection arrangements are rack-mount, and is distributed at least three sides of testee.
2. a kind of projection three-dimensional measuring device according to claim 1 is characterized in that described projection arrangement is evenly distributed on top one side of testee.
3. a kind of projection three-dimensional measuring device according to claim 1 and 2 is characterized in that described projection arrangement comprises light-emitting device, and the light-emitting device parallel beneath is provided with the structured light modulating part that is used to produce the candy strip structured light; Structured light modulating part parallel beneath is provided for grating pattern is projected to the projection lens set on measuring object surface; Described controller is connected and composed by bus by image acquisition units, projection control module, calculating and data storage cell; The signal input part of image acquisition units is connected with the signal output part of photo-electric conversion element; The signal output part of projection control module is connected with the signal output part of source of parallel light parts, structured light modulating part respectively.
4. a kind of projection three-dimensional measuring device according to claim 1 and 2, it is characterized in that under the described projection arrangement annular light source being installed, be provided with the ring light control module in the described controller, the signal input end of annular light source is connected with the ring light control module.
5. a kind of projection three-dimensional measuring device according to claim 3 is characterized in that described light-emitting device is the source of parallel light parts that are used to produce the led light source of emission white light and are used to produce directional light.
6. a kind of projection three-dimensional measuring device according to claim 5 is characterized in that described source of parallel light parts are by light-emitting component and lens parallel arrangement successively.
7. a kind of projection three-dimensional measuring device according to claim 3 is characterized in that described structured light modulating part is by preceding polaroid, transmission-type display element and rear polarizer parallel arrangement successively.
8. a kind of projection three-dimensional measuring device according to claim 3 is characterized in that described projection lens set is by front projection lens combination and back projection lens set parallel arrangement successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201807898U CN201561742U (en) | 2009-04-01 | 2009-11-27 | Projection three-dimensional measuring device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069764.0 | 2009-04-01 | ||
| CN2009201807898U CN201561742U (en) | 2009-04-01 | 2009-11-27 | Projection three-dimensional measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN201561742U true CN201561742U (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201807898U Expired - Lifetime CN201561742U (en) | 2009-04-01 | 2009-11-27 | Projection three-dimensional measuring device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155688A1 (en) * | 2011-05-18 | 2012-11-22 | 天津大学 | Optical free surface 3d profile high-precision non-contact measurement method and device |
| CN103644842A (en) * | 2013-11-22 | 2014-03-19 | 大连日佳电子有限公司 | A side-looking round-looking method and an apparatus thereof |
| CN103673894A (en) * | 2013-11-22 | 2014-03-26 | 大连日佳电子有限公司 | Side-sight surround view method and device |
| CN105136059A (en) * | 2015-05-26 | 2015-12-09 | 东莞市盟拓光电科技有限公司 | Three-dimensional measuring system capable of reducing light reflection on surface of measured object |
| CN105547190A (en) * | 2015-12-14 | 2016-05-04 | 深圳先进技术研究院 | Three-dimensional shape measuring method and device based on dual-angle single-frequency fringe projection |
| CN106767527A (en) * | 2016-12-07 | 2017-05-31 | 西安知象光电科技有限公司 | A kind of optics mixing detection method of three-D profile |
| CN108362228A (en) * | 2018-02-11 | 2018-08-03 | 西安知象光电科技有限公司 | A kind of hybrid three-dimensional measuring apparatus of finishing tool grating and measurement method based on double ray machines |
| CN110332907A (en) * | 2019-08-19 | 2019-10-15 | 珠海博明视觉科技有限公司 | A kind of method of raising face fringe light reconstruction precision |
-
2009
- 2009-11-27 CN CN2009201807898U patent/CN201561742U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155688A1 (en) * | 2011-05-18 | 2012-11-22 | 天津大学 | Optical free surface 3d profile high-precision non-contact measurement method and device |
| CN103673894B (en) * | 2013-11-22 | 2016-09-07 | 大连日佳电子有限公司 | The method and apparatus looked around is peeped in side |
| CN103644842A (en) * | 2013-11-22 | 2014-03-19 | 大连日佳电子有限公司 | A side-looking round-looking method and an apparatus thereof |
| CN103673894A (en) * | 2013-11-22 | 2014-03-26 | 大连日佳电子有限公司 | Side-sight surround view method and device |
| CN103644842B (en) * | 2013-11-22 | 2017-01-25 | 大连日佳电子有限公司 | A side-looking round-looking method and an apparatus thereof |
| CN105136059A (en) * | 2015-05-26 | 2015-12-09 | 东莞市盟拓光电科技有限公司 | Three-dimensional measuring system capable of reducing light reflection on surface of measured object |
| CN105547190A (en) * | 2015-12-14 | 2016-05-04 | 深圳先进技术研究院 | Three-dimensional shape measuring method and device based on dual-angle single-frequency fringe projection |
| CN105547190B (en) * | 2015-12-14 | 2018-08-14 | 深圳先进技术研究院 | 3 D measuring method and device based on double angle unifrequency fringe projections |
| CN106767527A (en) * | 2016-12-07 | 2017-05-31 | 西安知象光电科技有限公司 | A kind of optics mixing detection method of three-D profile |
| CN108362228A (en) * | 2018-02-11 | 2018-08-03 | 西安知象光电科技有限公司 | A kind of hybrid three-dimensional measuring apparatus of finishing tool grating and measurement method based on double ray machines |
| CN108362228B (en) * | 2018-02-11 | 2020-10-30 | 西安知象光电科技有限公司 | Double-optical-machine-based optical knife grating hybrid three-dimensional measurement device and measurement method |
| CN110332907A (en) * | 2019-08-19 | 2019-10-15 | 珠海博明视觉科技有限公司 | A kind of method of raising face fringe light reconstruction precision |
| CN110332907B (en) * | 2019-08-19 | 2021-04-13 | 珠海博明视觉科技有限公司 | Method for improving surface stripe light reconstruction precision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sinic-Tek Vision Technology Co., Ltd. Assignor: Yao Zhengyuan Contract record no.: 2011990000334 Denomination of utility model: Projection three-dimensional measuring device Granted publication date: 20100825 License type: Exclusive License Record date: 20110504 |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 361100 Fujian province Xiamen torch hi tech Zone (Xiangan) Industrial Zone No. 583 Liuzhou Road two four floor Patentee after: Yao Zhengyuan Address before: 305, room 4, building 14, software park, 230088 access road, Hefei hi tech Zone, Anhui, China Patentee before: Yao Zhengyuan |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |