CN101055206B - Interference-free color sampling device of machine vision system - Google Patents
Interference-free color sampling device of machine vision system Download PDFInfo
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- CN101055206B CN101055206B CN2007100574684A CN200710057468A CN101055206B CN 101055206 B CN101055206 B CN 101055206B CN 2007100574684 A CN2007100574684 A CN 2007100574684A CN 200710057468 A CN200710057468 A CN 200710057468A CN 101055206 B CN101055206 B CN 101055206B
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- sampling device
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- photodetector
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Abstract
The invention is a non-interference color collected device of machine vision system, including a casing, a lighting source for, a diffusion condenser, a lens, a photoelectric detector and a driving circuit of light source and photoelectric detector, etc. The casing is a long sleeve with an opening on the front end, a rear cover on the rear end, or a corner-shaped sleeve. The device of the invention is superior in reducing the demand for environment in which the color information can be collected under any situation with simple structure and portability, which can be applied in the color information collection of skin, hypertrophyic scars, presswork and textiles, etc.
Description
[technical field]
The present invention relates to the interference-free color sampling device in the Photoelectric Detection field, particularly a kind of Vision Builder for Automated Inspection of color.
[background technology]
Color is a key character parameter of object, and the target that can not detect with the difference of gray scale usually can detect by the difference of color information, has therefore obtained researcher's extensive attention based on the target detection of color.Such as, to the rejecting of detection, the whether judgement of fruit maturation and the foreign matter of printed matter color quality, even all relate to the detection of color at present about the judgement of the color quantification of skin and hyperplastic scar result of treatment.
Detection to object color component also mainly is by manually finishing at present.And human vision has subjectivity, can there be colour vision difference in various degree between the individuality, in color detection, also can be subjected to the influence of people's the state of mind, and only can not be to certain color realization quantification detection with people's vision, these factors finally all can have influence on the accuracy in detection of color.Therefore, need set up a kind of objective machine vision and carry out color detection.
In the color of machine vision is gathered,, thereby influence the accuracy of color detection because the variation of surrounding environment factor tends to cause the color of collection to distort.In order to prevent the color distortion, environment around the light source there is strict requirement, such as, other illumination light source around the illumination light source can not influence the surface of observed object directly or indirectly, and illumination light source around wallboard, top and bottom (clothes that comprises the observer) can not use other color, can only use the neutral gray of reflectivity＜60%.Increased the cost of whole color detection system so greatly.
[summary of the invention]
Purpose of the present invention is in order to address the above problem, a kind of interference-free color sampling device of Vision Builder for Automated Inspection is provided, brings the influence of color distortion, be constrained to the picture scope simultaneously to reduce extraneous factor, reduce the size of images acquired, improve the speed of subsequent treatment.
The present invention addresses the above problem the interference-free color sampling device that has designed a kind of Vision Builder for Automated Inspection, comprise shell, illumination light source, diffusion condenser, lens, photodetector and light source and photodetector driving circuit, it is characterized in that in the described shell that from inside to outside axial restraint is installed with photodetector successively, lens, diffusion condenser, and be positioned at the diffusion condenser oral area and be fixed on illumination light source on the light source driving circuit plate; The oral area end face of said shell is to detect mouth, the photodetector that detects mouth and install successively, and lens, diffusion condenser is relative with the axis of illumination light source group.
The advantage of color sampling device of the present invention is simple in structure, and is hand-held, portable, reduced environment requirement, makes the collection of color information to carry out in any occasion; And imaging viewing field limited, reduced the data volume of subsequent treatment, can improve the speed of Vision Builder for Automated Inspection color detection.The color sampling device of this invention can be applied to the collection of the color information of skin, hyperplastic scar, printed matter and textile etc.
[description of drawings]
Fig. 1 is the structural representation of the interference-free color sampling device of straight shape Vision Builder for Automated Inspection;
Fig. 2 is the structural representation of the interference-free color sampling device of turning shape Vision Builder for Automated Inspection;
Fig. 3 is the color sampling device end view drawing of circular arrangement illumination light source;
Fig. 4 arranges the color sampling device end view drawing of illumination light source for rectangular ring.
[embodiment]
Be described in detail with reference to accompanying drawing below in conjunction with embodiments of the invention.
Shown in Figure 1 is a kind of structural representation of interference-free color sampling device of straight shape Vision Builder for Automated Inspection.The detection mouth end face and the photodetector of the color harvester of straight shape and color, lens, the axis normal of diffusion condenser and illumination light source group, its shell is a cylinder blanket.Its structure at first from the front end of cylinder blanket 5 diffusion condenser 4 cylinder blanket 5 of packing into, again the illumination light source drive circuit board 3 that illumination light source 2 the is housed cylinder blanket 5 of packing into.Then, lens 8 are contained in the lens mount 7, fixing with lens pressure ring 6.Again the photodetector drive circuit board 11 that is embedded with photodetector 10 is fixed on the lens mount 7.Distance between them is determined by the size of lens mount 7.Lens mount 7 outside surface external threadings are connected with cylinder blanket 5.Load onto bonnet 12 at last.Guarantee bonnet 12 and cylinder blanket 5 sealing installations, enter color sampling device to prevent extraneous parasitic light.Electric wire in the cable 9 and signal wire connect illumination light source drive circuit board 3 and photodetector drive circuit board 11, supply power and conducting electrical signals respectively.Outer sleeve 1 is connected with cylinder blanket 5 usefulness fine threads, can finely tune imaging definition.Lens 8 adopt achromat, to reduce horizontal aberration, improve image quality.
If adopt 1/3 inch CCD or CMOS chip 10, Aspect Ratio is 4: 3, the length and width size is respectively 4.8mm and 3.6mm, when Diagonal Dimension is 6mm, be the achromat 8 of 3mm if select focal length for use, when the visual field diagonal line is 20mm, imaging formula according to lens, can draw operating distance is 100mm, adds the thickness of lens, the length of support member, and total length of the present invention can be controlled within the 200mm.Can to the visual field target color imaging of 20mm.
In order to reduce the longitudinal size of whole color sampling device, the present invention proposes the color harvester of turning shape and color as shown in Figure 2.The detection mouth end face of the color harvester of turning shape and color is by catoptron carriage fixing 45 ° of catoptrons and photodetector, lens, and the parallel axes of diffusion condenser and illumination light source group, its shell is a turning shape shell.This color sampling device is except that the inner structure that the color harvester of straight shape and color is arranged, and weak point tube 16 and long 17 corner that are connected at turning shape shell have increased the catoptron of fixing with catoptron carriage 14 13, and protecgulum 15.Wherein catoptron 13 is with respect to 45 ° of configurations of axis of long tube 17, the light that can make light source through catoptron 13 back reflections on target; From the light of target scattering again through catoptron 13 back reflection light echo electric explorers.Guarantee bonnet 12, protecgulum 15 and short 16 and the 17 sealing installations of long tube, enter color sampling device to prevent extraneous parasitic light.
The color sampling device of two kinds of forms of the present invention in the long sleeve front end of straight shape and lacking outside the tube of turning shape sleeve, all is connected with the outer sleeve of an adjustable focus and replacing, can be disposable hard or soft sleeve.If at skin,, can be designed to removable disposable soft cover in order to prevent cross-infection.The inner chamber color of its housing of the color sampling device of two kinds of forms and outer sleeve can spray according to the concrete detection of a target, can adopt reflectivity less than 60% neutral gray such as surveying printed matter.
The photodetector of the color sampling device of two kinds of forms of the present invention, can be colorful charge coupled device CCD (Charge Coupled Device, CCD) chip or colored complementary matal-oxide semiconductor CMOS (Complementary Metal-Oxide Semiconductor, CMOS) chip.Photodetector can be the photodetector that linear array is arranged or the face battle array is arranged, and can select linear array or face battle array photodetector according to the objectives that detect in the reality.
The illumination light source of the color sampling device of two kinds of forms of the present invention is to arrange in the form of a ring accordingly with the photodetector shape.In order to guarantee even illumination, can be closely arrange in the form of a ring the LED installed (Light Emitting Diode, LED), along a plurality of LED of color sampling device one week configuration.The spread pattern that can select illumination light source according to the linear array that adopts or face battle array photodetector in the reality makes it rectangle, ellipse or circular ring-type one all solid matters.Fig. 3 and Fig. 4 are respectively circular and rectangular ring has been arranged 14 LED.The number of LED can be adjusted according to concrete color sampling device size.Can also make LED be configured to two weeks or how all according to the requirement of illumination light intensity and illumination uniformity coefficient.The color of LED can be respectively a kind of in white, blue, green, red, orange or yellow, and LED is unified concerning a color sampling device uses a kind of color.
The present invention in use, the short tube outer end of the long sleeve front end of the color harvester of straight shape and color or the color harvester of turning shape and color directly is adjacent to target, after led light source was lighted, the diffuse reflection light-gathering mirror impinged upon on the target light equably.The light that returns from target scattering focuses on photodetector and is converted to electric signal, by the capture card collection.
Claims (10)
1. the interference-free color sampling device of a Vision Builder for Automated Inspection, comprise shell, illumination light source, diffusion condenser, lens, photodetector and light source and photodetector driving circuit, it is characterized in that in the described shell that from inside to outside axial restraint is installed with photodetector successively, lens, diffusion condenser, and be positioned at the diffusion condenser oral area and be fixed on illumination light source on the light source driving circuit plate; The oral area end face of described shell is to detect mouth, the photodetector that detects mouth and install successively, and lens, diffusion condenser is relative with the axis of illumination light source group; Described illumination light source is the LED of closely arranging in the form of a ring and installing, and the color of LED is a kind of in white, blue, green, red, orange or yellow; Described lens adopt achromat; Described photodetector is colorful charge coupled device CCD chip or colored complementary matal-oxide semiconductor CMOS chip.
2. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 1 is characterized in that the oral area of described shell detects the outer sleeve that mouth is connected with an adjustable focus and replacing.
3. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 2, the outer sleeve that it is characterized in that described adjustable focus and replacing is disposable hard or soft sleeve.
4. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 1 and 2 is characterized in that described detection mouthful end face and photodetector, lens, and the axis normal of diffusion condenser and illumination light source group, its shell is a cylinder blanket.
5. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 1 and 2, it is characterized in that the described mouthful end face that detects is by catoptron carriage fixing 45 ° of catoptrons and photodetector, lens, the parallel axes of diffusion condenser and illumination light source group, its shell are turning shape shells.
6. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 3, the inner chamber color that it is characterized in that described shell and outer sleeve are reflectivity less than 60% neutral gray.
7. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 4, the inner chamber color that it is characterized in that described shell and outer sleeve are reflectivity less than 60% neutral gray.
8. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 5, the inner chamber color that it is characterized in that described shell and outer sleeve are reflectivity less than 60% neutral gray.
9. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 1 and 2 is characterized in that described illumination light source is for arranging in the form of a ring accordingly with the photodetector shape.
10. the interference-free color sampling device of Vision Builder for Automated Inspection according to claim 1 and 2 is characterized in that described photodetector is the photodetector that linear array is arranged or the face battle array is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100574684A CN101055206B (en) | 2007-05-25 | 2007-05-25 | Interference-free color sampling device of machine vision system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100574684A CN101055206B (en) | 2007-05-25 | 2007-05-25 | Interference-free color sampling device of machine vision system |
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| CN101055206A CN101055206A (en) | 2007-10-17 |
| CN101055206B true CN101055206B (en) | 2010-06-02 |
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| CN2007100574684A Expired - Fee Related CN101055206B (en) | 2007-05-25 | 2007-05-25 | Interference-free color sampling device of machine vision system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2914942B1 (en) | 2012-11-02 | 2023-06-14 | Variable Inc. | Computer-implemented system and method for color sensing, storage and comparison |
| US9674323B1 (en) | 2013-08-29 | 2017-06-06 | Variable, Inc. | Modular multi-functional device, method, and system |
| WO2016178653A1 (en) | 2015-05-01 | 2016-11-10 | Variable, Inc. | Intelligent alignment system and method for color sensing devices |
| CN108333126B (en) * | 2018-01-17 | 2020-12-01 | 南通市第一人民医院 | Artificial intelligence real-time dynamic spectrum cerebrospinal fluid monitoring system |
| US10746599B2 (en) | 2018-10-30 | 2020-08-18 | Variable, Inc. | System and method for spectral interpolation using multiple illumination sources |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684172Y (en) * | 2004-02-20 | 2005-03-09 | 王军 | Hand-held intelligent color recognition device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684172Y (en) * | 2004-02-20 | 2005-03-09 | 王军 | Hand-held intelligent color recognition device |
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