CN101606094A - Be used for the method and apparatus that detects automatically by illuminating film - Google Patents
Be used for the method and apparatus that detects automatically by illuminating film Download PDFInfo
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- CN101606094A CN101606094A CNA2008800042806A CN200880004280A CN101606094A CN 101606094 A CN101606094 A CN 101606094A CN A2008800042806 A CNA2008800042806 A CN A2008800042806A CN 200880004280 A CN200880004280 A CN 200880004280A CN 101606094 A CN101606094 A CN 101606094A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/8422—Investigating thin films, e.g. matrix isolation method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
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Abstract
The lighting engineering that is used for the machine detection of blooming.In one embodiment, the transparent or semitransparent structuring sheet material that is used to throw light on has been described so that the illuminator that optical receiver assembly detects.
Description
CROSS-REFERENCE TO RELATED PATENT
The application's requirement is filed in the right of priority of the U.S. Provisional Patent Application No.60/890415 on February 16th, 2007, and the disclosure of this patented claim is incorporated this paper in full with way of reference.
Technical field
The present invention is relevant with machine vision, and more particularly, the present invention at utmost discerns abnormal conditions by illumination (for example) structured optical film.
Background technology
Under the assistance of powerful calculating, can use the detection task that automatic equipment is carried out needs trained testing staff to carry out before some in recent years.This type of " machine vision " technology has become very advanced, and one of them purposes is the coiled material that is used for the test material indefinite length.
The normal operation of Vision Builder for Automated Inspection needs suitable coiled material lighting engineering.Requiring strict especially example is the surface imperfection of detection architecture blooming.An adopted technology is so-called " diffusion transmitted light " technology.When structured optical film was used the diffusion transmission illumination technique, diffused light source sent with the film surface and is structuring one side that the light of many different angles comes the light optics film.The camera focus that is positioned at film destructuring one side is in the illuminated zone of film.When the anomaly sxtructure of some type during by illumination regional, the mode of abnormal area transmitted light can be different with the non-abnormal area of film, and this species diversity is detected by camera.Camera can observe some surface abnormalities (for example, the scratch in the film) and compare brighter or darker with other zones of film.
The technology that another kind is called as " details in a play not acted out on stage, but told through dialogues far away " is used to detect the unusual of the strong scattered light of energy.When using details in a play not acted out on stage, but told through dialogues technology far away, place one or two light source so that the sight line of its light and camera drops on the film that will detect at an angle.Camera be can't see the light that these light sources send usually.Only when some surface abnormalities was passed through one or more light beam, light just can be to the camera scattering, so that defective is shown as the bright area on the normal dark image.Details in a play not acted out on stage, but told through dialogues technology far away belongs to the dark ground illumination class.Another kind of is the near-dark field.Name near and far away is meant the incident angle with respect to the plane on illuminated surface.
In these lighting engineering each all has some unusual advantages of some type on the outstanding structured optical film, but is to use any some defectives that all exist obstruction to detect in these methods.
Summary of the invention
It is found that, can make the lighting structure that has merged diffusion transmission illumination technique and at least a other lighting engineering, as the single station that monitors by the separate unit imaging camera.In one embodiment, another kind of lighting engineering is a dark field far away.In certain embodiments, compare with any lighting engineering of independent use, this combination lighting technology can be to providing more firm detection unusually.Seldom can detect or could can be enhanced by detected exception example once in a while by any a certain method, detect so that be easy to.
In various embodiments, the present invention may relate to following a certain or whole:
1. the transparent or semitransparent structuring sheet material that is used to throw light on is so that the system that optical receiver assembly detects, and described sheet material has first side and second side, and described system comprises:
First light source, the part that its guiding diffused light passes described sheet material; And
Secondary light source, itself and described first light source simultaneously direct light towards the same section of described sheet material.
2. according to embodiment 1 described system, wherein said first side and second side are structured side.
3. according to embodiment 1 described system, wherein said structuring sheet material has inner structure.
4. according to embodiment 1 described illuminator, wherein said first side is a structured side.
5. according to the described system of any the foregoing description, wherein said first optical source directs light is towards described first side of described sheet material, and described optical receiver assembly is positioned for receiving the light from described second side of described sheet material.
6. according to the described system of any the foregoing description, wherein said sheet material is a structured optical film.
7. according to the described system of any the foregoing description, wherein said structured optical film is a prism film.
8. according to the described system of any the foregoing description, also comprise:
The 3rd light source, itself and described first light source and described secondary light source simultaneously direct light towards the same section of described sheet material.
9. according to embodiment 8 described systems, also comprise:
The 4th light source, itself and described first light source, described secondary light source and described the 3rd light source simultaneously direct light towards the described same section of described sheet material.
10. according to embodiment 9 described systems, also comprise:
The 5th light source, itself and described first light source, described secondary light source, described the 3rd light source and described the 4th light source simultaneously direct light towards the described same section of described sheet material.
11., also comprise according to embodiment 10 described systems:
One or more additional source of light, itself and described first light source, described secondary light source, described the 3rd light source, described the 4th light source or described the 5th light source simultaneously direct light towards the described same section of described sheet material.
12. according to the described system of any the foregoing description, wherein said first light source is with the lead side opposite with described optical receiver assembly of described coiled material of diffused light.
13. according to the described system of any the foregoing description, wherein said secondary light source provides dark field light far away to a side opposite with described optical receiver assembly of described coiled material.
14. according to the described system of any the foregoing description, wherein said first light source is with the lead side opposite with described optical receiver assembly of described coiled material of diffused light, described secondary light source is with details in a play not acted out on stage, but told through dialogues transmitted light the lead side opposite with described optical receiver assembly of described coiled material and described the 3rd light source-guide details in a play not acted out on stage, but told through dialogues transmitted light or details in a play not acted out on stage, but told through dialogues reflected light.
15. a system that is used for the detection optical film comprises:
Light sensing apparatus, it is positioned for the light of sensing from blooming surface surveyed area;
First light source, its guiding diffusion transmitted light by described coiled material, and enter described light sensing apparatus in the surveyed area of described coiled material, described first light source with respect to described coiled material longitudinally first angle light is provided;
Secondary light source, its direct light be towards the described surveyed area of described coiled material, described secondary light source with respect to described coiled material longitudinally second angle light is provided, described second angle is different with described first angle.
16. according to embodiment 15 described systems, wherein said light sensing apparatus is a camera.
17. according to the described system of embodiment 15-16, wherein said light sensing apparatus is a line scan cameras.
18. according to the described system of embodiment 15-17, wherein said blooming is with respect to respect to any or all motion in described light sensing apparatus, described first light source and the described secondary light source.
19. according to the described system of embodiment 15-18, described system detection optical film when making described blooming wherein.
20., also comprise according to the described system of embodiment 15-19:
The 3rd light source, its direct light be towards described surveyed area, described the 3rd light source with respect to described coiled material longitudinally the third angle degree light is provided, described third angle degree is different with described first angle or described second angle.
21. system according to claim 20 also comprises:
One or more additional source of light, its direct light are towards described surveyed area, described one or more additional source of light with respect to described web direction provide light as lower angle, described angle is different with the angle of other light sources.
22. the method for the transparent or semitransparent structuring sheet material of illumination comprises:
First light source is provided, and the described first light source-guide diffused light is by the part of described sheet material; And
Secondary light source is provided, and described secondary light source and described first light source while direct light are towards the described same section of described sheet material.
Description of drawings
Fig. 1 is for detecting the schematic side elevation of station.
Fig. 2 is for detecting the schematic side elevation of station.
Fig. 3 A to Fig. 3 C is the screenshotss of computer screen, and it is a part of together by coiled material to show three light that are arranged side by side.
Embodiment
Term used herein " structured optical film " is meant the film that the material of light-transmissive constitutes, and is provided with a series of prisms on the film or in the film, so that film can or reflect direct light again by reflection.Structured optical film is roughly described among 070 (Cobb) to some extent in U.S. Patent No. 4,906.
Term used herein " brightness enhancement film " is meant a class film of the apparent axial brightness that can increase lambert's backlight, for example, and the common film that uses with LCD (LCD).Brightness enhancement film can be structured optical film.Exemplary brightness enhancement film is in U.S. Patent No. 5,917, describes to some extent among 664 (O ' Neill).Brightness enhancement film among embodiment can be included in little science prism of vertical orientation parallel to each other, also can comprise the defective shielding pattern, and it can relate to having a mind at random of little science prism or pseudorandom changes.The exemplary deficiencies shielding pattern is described among 709 (Campbell) to some extent in U.S. Patent No. 6,354.Some brightness enhancement film is seeming that opacity increases when observing with the vertical substantially angle (axially) of membrane plane, but seems that opacity reduces (for example, partially or completely transparent) when observing with basic angle beyond vertical.This characteristic makes it be fit to the combination of some lighting engineering or lighting engineering, and this paper will be described more fully it.
On perfect minute surface, in the plane of incident angle, reflect to form the minute surface light beam with equal angles with the light of given angle incident.On real surface, some in these light will be scattered (be absorbed, diffracted or otherwise be directed to the outer angle of minute surface light beam).Interface between particle, scratch, rough surface, local surfaces structure or the different materials can cause light scattering.This scattering can be detected and be analyzed unusual with what exist in the identification blooming by sensor device.Term used herein " unusually " is meant the zone that has optical aberration in the film.Common structural the departing from scratch, rough surface, indenture, the little science pattern (if having this type of pattern in the blooming), bubble and the impurity carried secretly of comprising unusually.These unusual and other can cause blooming not to be suitable for some application unusually.
Fig. 1 is for detecting the schematic side elevation of station, and wherein diffusion transillumination technology is used with other technologies (being dark ground illumination technology far away in the present example).In certain embodiments, this combination can increase the unusual contrast that exists on the film surface.In addition, in certain embodiments, this combination of detection technique can be to detecting of can't detecting or be difficult to detect in other cases unusually.In other embodiments, this combination can reduce the visual noise relevant with the detection of some type structure blooming.
Coiled material I1 is a light-transmissive film.Only as limiting examples, coiled material I1 can be blooming, structured optical film or brightness enhancement film.As shown in Figure 1, coiled material I1 is in the manufacture process, and may from left to right or from right to left laterally move, and this direction that moves may be regarded as " along dimension " direction or " vertically ".Though this paper just illustrates in the manufacture process and describes, (for example) can similarly adopt illumination described herein and detection technique after the coiled material manufacturing is finished.In addition, though the description of carrying out with respect to the illumination and the detection (may in manufacturing environment, run into) of continuous or semicontinuous coiled material, but person of skill in the art will appreciate that, can promote, reduce or revise technology described herein as required to be fit to make environment in addition.
For the purpose disclosure illustrated (rather than qualification), coiled material I1 can be regarded as brightness enhancement film.In one embodiment, coiled material I1 comprises structured side and destructuring side.In this embodiment, the structured side of coiled material I1 has little science prism, and this structured side is towards diffusion transmitted light source I3 (downside surface of coiled material I1 is a patterned surface).Light source I3 provides the light of guiding lens I4, and lens I4 provides light to diffusion sheet I6.Light source I3, lens I4 and diffusion sheet I6 constitute diffusion transmitted light source I9.Diffusion transmitted light source I9 roughly be positioned coiled material I1 the plane axially on.Diffusion sheet I6 be positioned for the throwing light on horizontal dimension part (being called as the coiled material field of illumination hereinafter) of coiled material I1 structured side.Person of skill in the art will appreciate that, except exemplary embodiment shown in Figure 1, have or not several methods to can be used for providing diffuse illumination.For example, light emitting diode (LED) array or fluorescent light can be used for providing diffuse illumination, can use or not use diffusion sheet.Being positioned on the destructuring side of coiled material I1 is lens I7, and it receives the light that coiled material I7 is passed in transmission.Lens I7 is delivered to sensing apparatus with light, is camera I8 in this example.Light from diffusion sheet I6 reflects (characteristic of some type brightness enhancement film) when passing coiled material I1, so that when the visual angle of camera 8 is watched, the coiled material field of illumination dark (and as long as camera 8 and coiled material planar axes to angle in restriction, will do like this).That passes the coiled material field of illumination trends towards refract light unevenly unusually, may be brighter than background thereby look.
Second kind of lighting engineering structure (being details in a play not acted out on stage, but told through dialogues transmitted light source I10 far away in this example) is provided by light source I2 and lens I5, and lens I5 is positioned for that the angles of 35 degree provide light to be roughly with coiled material plane vertical incidence angle.5 spend to 85 the degree angles have certain validity, this depends on concrete application.In one embodiment, from the light of details in a play not acted out on stage, but told through dialogues transmitted light source I10 far away along the identical regional centralized in coiled material field of illumination of being thrown light on diffusion transmitted light source I9.Details in a play not acted out on stage, but told through dialogues transmitted light source far away trends towards giving prominence to the unusual of the suitable dimension in illumination edge or vertical scattered light.This class may comprise the fluctuation in little science prism or the pattern unusually, and/or little duplicate and back lining materials between the interface, or the defective of back lining materials self.
These two kinds of lighting engineering (diffusion transmission and far away details in a play not acted out on stage, but told through dialogues) thus be combined, and separate unit sensing apparatus (for example, line scan cameras) can be configured to receive the signal that sends from the coiled material field of illumination.
Light source I2 and I3 can be luminous any device, for example, and conventional incandescent bulb, fluorescent lamp bulb or based on halogen bulb; LED; Or laser instrument.Alternatively, light source I2 and/or I3 can not produce the light of self, but as the conduit of other light sources.For example, light source I2 and/or I3 can be so-called " fibre circuit light source ", and it transmits light by fibre circuit from independent light source (being generally near the isolated system being positioned at).In certain embodiments, that light source I2 and I3 belong to is dissimilar (one is fluorescence light source, and one is laser instrument or fibre circuit light source, or the like).
Lens I4 and I5 can be the optically focused or the light collecting device of any kind.In certain embodiments, according to the person's character of light source, can omit lens I4 and I5.In one embodiment, lens I4 and I5 are the acrylic resin cylindrical lens.
Diffusion sheet I6 can be for scattering or any device of scattered light.In one embodiment, diffusion sheet I6 is the opal sheet.Be diffusion barrier sheet in another embodiment, for example, by GeneralElectric of Fairfield, any in the multiple polycarbonate membrane that Connecticut makes.
Lens I7 can be the lens of any kind.In one embodiment for being furnished with the Schneider Componon f5.6/150mm of 85mm extension.
Fig. 2 is for detecting the schematic side elevation of station, and wherein diffusion transillumination technology is used with other lighting engineering.Fig. 2 comprises the parts identical with Fig. 1, but additional another details in a play not acted out on stage, but told through dialogues transmitted light source far away (J1) and the details in a play not acted out on stage, but told through dialogues reflection source (J2) of comprising.In addition, Fig. 2 shows, can optically make up more than two kinds of different lighting engineering, and can pass through the separate unit camera or sensing in single detection station.In this case, for example, whole four light sources shown in Fig. 3 accumulate in light on the identical coiled material illumination section that camera 8 detected.Can adopt other lighting engineering that adopt lighting engineering more than four kinds simultaneously similarly.
The second details in a play not acted out on stage, but told through dialogues transmitted light source far away (J1) can help the outstanding illumination of first light source coiled material unusual when coiled material passes the coiled material field of illumination unusually.The make of the second details in a play not acted out on stage, but told through dialogues transmitted light source far away and the make of first light source are roughly the same, but are relative angle in one embodiment.Details in a play not acted out on stage, but told through dialogues refract light source (J2) trends towards unusual on the especially outstanding backing coiled material plane surface (the destructuring side of coiled material).
The combination of multiple lighting engineering can help carrying out preferably automatic coiled material and detect.This advantage can be the result that the lighting engineering of enough noise contrasts is provided for wide in range abnormal ranges, and described wide in range abnormal ranges is along multiple direction appearance and on different surfaces or surface interface.In addition, compare during with arbitrary lighting engineering in the combination of the multiple lighting engineering of independent use, the combination of multiple lighting engineering can also be that more a high proportion of defective increases signal to noise ratio (S/N ratio).For example, for specific defects, diffusion transmitted light source I3 can generate 75% of gained signal, and in the situation of detection station shown in Figure 2, two additional far dark field can increase remaining 25%, thereby provide enough signal with the separating abnormality zone.In another example, transmitted light source I9 can generate 35% of gained signal, and in the situation of detection station shown in Figure 2, two additional far dark field (J1 and J2) can increase remaining 65%.
In addition, in certain embodiments, multiple lighting engineering can be used to reduce and detect the relevant intrinsic noise of coiled material.For example, some blooming such as brightness enhancement film can comprise defective shielding pattern or membrane property (for example, prismatic dimension or orientation) he have a mind at random or pseudorandom changes.Use single lighting engineering of planting to throw light on that these have a mind to film when changing, these are had a mind to film and change and can appear as ground unrest, thereby reduce actual unusual contrast.Yet multiple lighting engineering can reduce has a mind to film with this type of and changes relevant ground unrest, thus the increase signal to noise ratio (S/N ratio).
Example
Coiled material detects station and constructs as shown in Figure 2 generally.Illuminator is installed in the web path below of the traditional coiled material disposal system on the free span between the idler roller.Be equipped with the AVIIVATM CCD monochromatic line smear camera (can be from Atmel of San Jose, CA is commercially available) of traditional 150mm lens to be installed in 83cm place, web path top on the illuminator.Illuminator comprises three light sources, each light source all comprises can be from Fostec Imaging of San Diego, the fibre light guide pipe that CA is commercially available, by can be from Illumination Technologies of East Syracuse, the commercially available automatic regulation light source of 4900 types (Model 4900 Auto-Calibrating Light Source) of NY drives.Directly light source is directly upwards concentrated one's gaze on camera, and two dark field far away are concentrated one's gaze on the angle that is 40 degree with vertical direction.In addition, all three light sources are oriented and make its major axis parallel with horizontal dimension direction.
In these three light sources each all has the post lens, and each post lens is made by optically transparent acrylic polymers, and diameter is 1.25 inches (31.75mm).Groove width is that the aluminium chassis of 0.5 inch (12.5mm) is installed between the downside of direct light source and coiled material, so that pass in the post lens one from the light of direct light source, passes this groove then in it passes the distance of coiled material downside.The semi-transparent film of the diffusion sheet that matte finish was handled is disposed in the entire top of this groove.
The output of camera is directed to personal computer to analyze.This computer run MatroxInspector 2.2 software packages, this software package can be from Matrox Imaging of Dorval, Quebec, Canada is commercially available.
Coiled material detects the lens optical film that station is used to detect the thick optical property of 7mm, and this lens optical film has the class that may use in the manufacturing of various products and has a mind to characteristic variations.Selecting the certain material volume to be used for experiment is because it shows various possible defectives, is that coarse defectives such as 100 to hundreds of microns groove and surface impurity are to about 15 to the 20 microns very tiny scratch of width from range of size.
Fig. 3 A to Fig. 3 C is the screenshotss of computer screen, and it is a part of together by coiled material to show three light that are arranged side by side.Fig. 3 A is the scanning result of the film of the certain-length by diffusion transmitted light source illumination only.The figure illustrates " rash spot " gray scale color change gradually.Because membrane property changes the crisscross ground unrest that causes intentionally, it is unusual to cause being difficult to identification.Fig. 3 B is the scanning result of the film of the certain-length by dark field far away illumination only.Although the crisscross signal that Fig. 3 A has gradually changes, Fig. 3 B has clearer, more precipitous signal and changes (many owing to the variation of identical membrane property intentionally causes).With identical among Fig. 3 A, be difficult to equally with respect to change relevant ground unrest identification unusual with having a mind to membrane property.Fig. 3 C is the scanning result of the material of the certain-length that adopts the technology illumination of describing among the technology described among Fig. 3 A and Fig. 3 B simultaneously.With respect to Fig. 3 A and Fig. 3 B, unusual D1 and so on can more clearly distinguish unusually, and ground unrest also reduces.Can there be the remarkable synergistic enhancing effect relevant as seen from the figure: the not only outstanding independent exsertile all defect of more traditional lighting methods of novel system, but also outstanding other more indistinguishable defective with illuminator of the present invention.
Table 1 shows the relativity effect of three kinds of lighting engineering for uniform relatively structuring prism film.Y-axis is represented lighting engineering.Translot/crossheading is meant the unusual orientation with respect to the groove pattern on the membrane structure side of test.
Table 1
Table 2 shows the relativity effect of three kinds of lighting engineering for the pseudo-random patterns prism film.
Table 2
Claims (22)
1. the transparent or semitransparent structuring sheet material that is used to throw light on is so that the system that optical receiver assembly detects, and described sheet material has first side and second side, and described system comprises:
First light source, the part that its guiding diffused light passes described sheet material; And
Secondary light source, itself and described first light source simultaneously direct light towards the same section of described sheet material.
2. system according to claim 1, wherein said first side and second side are structured side.
3. system according to claim 1, wherein said structuring sheet material has inner structure.
4. illuminator according to claim 1, wherein said first side is a structured side.
5. system according to claim 4, wherein said first optical source directs light are towards described first side of described sheet material, and described optical receiver assembly is positioned for receiving the light from described second side of described sheet material.
6. system according to claim 1, wherein said sheet material is a structured optical film.
7. system according to claim 6, wherein said structured optical film is a prism film.
8. system according to claim 4 also comprises:
The 3rd light source, itself and described first light source and described secondary light source simultaneously direct light towards the described same section of described sheet material.
9. system according to claim 8 also comprises:
The 4th light source, itself and described first light source, described secondary light source and described the 3rd light source simultaneously direct light towards the described same section of described sheet material.
10. system according to claim 9 also comprises:
The 5th light source, itself and described first light source, described secondary light source, described the 3rd light source and described the 4th light source simultaneously direct light towards the described same section of described sheet material.
11. system according to claim 10 also comprises:
One or more additional source of light, itself and described first light source, described secondary light source, described the 3rd light source, described the 4th light source or described the 5th light source simultaneously direct light towards the described same section of described sheet material.
12. system according to claim 1, wherein said first light source is with the lead side opposite with described optical receiver assembly of described coiled material of diffused light.
13. system according to claim 12, wherein said secondary light source provides dark field light far away to a side opposite with described optical receiver assembly of described coiled material.
14. system according to claim 4, wherein said first light source is with the lead side opposite with described optical receiver assembly of described coiled material of diffused light, described secondary light source is with details in a play not acted out on stage, but told through dialogues transmitted light the lead side opposite with described optical receiver assembly of described coiled material and described the 3rd light source-guide details in a play not acted out on stage, but told through dialogues transmitted light or details in a play not acted out on stage, but told through dialogues reflected light.
15. a system that is used for the detection optical film comprises:
Light sensing apparatus, it is positioned for the light of sensing from blooming surface surveyed area;
First light source, its guiding diffusion transmitted light by described coiled material, and enter described light sensing apparatus in the surveyed area of described coiled material, described first light source with respect to described coiled material longitudinally first angle light is provided;
Secondary light source, its direct light be towards the described surveyed area of described coiled material, described secondary light source with respect to described coiled material longitudinally second angle light is provided, described second angle is different with described first angle.
16. system according to claim 15, wherein said light sensing apparatus is a camera.
17. system according to claim 16, wherein said light sensing apparatus is a line scan cameras.
18. system according to claim 15, wherein said blooming is with respect to any or all motion in described light sensing apparatus, described first light source and the described secondary light source.
19. system according to claim 16, wherein described system detects described blooming when making described blooming.
20. system according to claim 16 also comprises:
The 3rd light source, its direct light be towards described surveyed area, described the 3rd light source with respect to described coiled material longitudinally the third angle degree light is provided, described third angle degree is different with described first angle or described second angle.
21. system according to claim 20 also comprises:
One or more additional source of light, its direct light are towards described surveyed area, described one or more additional source of light with respect to described web direction provide light as lower angle, described angle is different with the angle of other light sources.
22. the method for the transparent or semitransparent structuring sheet material of illumination comprises:
First light source is provided, and the described first light source-guide diffused light is by the part of described sheet material; And
Secondary light source is provided, and described secondary light source and described first light source while direct light are towards the described same section of described sheet material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US89041507P | 2007-02-16 | 2007-02-16 | |
| US60/890,415 | 2007-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101606094A true CN101606094A (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008800042806A Pending CN101606094A (en) | 2007-02-16 | 2008-01-29 | Be used for the method and apparatus that detects automatically by illuminating film |
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| Country | Link |
|---|---|
| EP (1) | EP2132590A1 (en) |
| JP (1) | JP2010519516A (en) |
| KR (1) | KR20090113886A (en) |
| CN (1) | CN101606094A (en) |
| WO (1) | WO2008100703A1 (en) |
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| CN107102008A (en) * | 2016-02-22 | 2017-08-29 | 特克斯玛贸易有限公司 | Detection and/or orbital surveillance device, in this device using the application of an arrangement, and the method for operating this device |
| CN110609040A (en) * | 2019-09-30 | 2019-12-24 | 苏州精濑光电有限公司 | Optical detection method of diaphragm |
| CN110658201A (en) * | 2019-09-30 | 2020-01-07 | 苏州精濑光电有限公司 | Optical detection mechanism of diaphragm |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5521283B2 (en) * | 2008-05-14 | 2014-06-11 | パナソニック株式会社 | Board inspection equipment |
| CN101819165B (en) * | 2009-02-27 | 2013-08-07 | 圣戈本玻璃法国公司 | Method and system for detecting defect of patterned substrate |
| JP6073704B2 (en) * | 2013-02-25 | 2017-02-01 | 倉敷紡績株式会社 | Appearance inspection device |
| KR101366816B1 (en) * | 2013-07-12 | 2014-02-25 | 주식회사 에이피에스 | Test apparatus of graphene printed pattern, and test system of graphene printed pattern and its operation method |
| KR101366815B1 (en) * | 2013-07-12 | 2014-02-25 | 주식회사 에이피에스 | Test apparatus of graphene printed pattern and test system of graphene printed pattern and its operation method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07311160A (en) * | 1994-05-19 | 1995-11-28 | Nitto Denko Corp | Method and device for preforming visual inspection |
| JP4484177B2 (en) * | 1999-02-19 | 2010-06-16 | 大日本印刷株式会社 | Method for quantitative evaluation of surface glare and method for producing antiglare film |
| US7105848B2 (en) * | 2002-04-15 | 2006-09-12 | Wintriss Engineering Corporation | Dual level out-of-focus light source for amplification of defects on a surface |
| EP1718954A4 (en) * | 2004-01-22 | 2010-08-11 | Wintriss Engineering Corp | Illumination system for material inspection |
| JP4628824B2 (en) * | 2005-03-10 | 2011-02-09 | 富士フイルム株式会社 | Film defect inspection apparatus and film manufacturing method |
-
2008
- 2008-01-29 JP JP2009549658A patent/JP2010519516A/en not_active Withdrawn
- 2008-01-29 KR KR1020097019228A patent/KR20090113886A/en not_active Application Discontinuation
- 2008-01-29 EP EP08728466A patent/EP2132590A1/en not_active Withdrawn
- 2008-01-29 WO PCT/US2008/052314 patent/WO2008100703A1/en active Application Filing
- 2008-01-29 CN CNA2008800042806A patent/CN101606094A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107102008A (en) * | 2016-02-22 | 2017-08-29 | 特克斯玛贸易有限公司 | Detection and/or orbital surveillance device, in this device using the application of an arrangement, and the method for operating this device |
| CN110609040A (en) * | 2019-09-30 | 2019-12-24 | 苏州精濑光电有限公司 | Optical detection method of diaphragm |
| CN110658201A (en) * | 2019-09-30 | 2020-01-07 | 苏州精濑光电有限公司 | Optical detection mechanism of diaphragm |
| WO2021062938A1 (en) * | 2019-09-30 | 2021-04-08 | 苏州精濑光电有限公司 | Optical detection mechanism for diaphragm |
| WO2021062939A1 (en) * | 2019-09-30 | 2021-04-08 | 苏州精濑光电有限公司 | Method for optical detection of diaphragm |
| CN110609040B (en) * | 2019-09-30 | 2022-01-07 | 苏州精濑光电有限公司 | Optical detection method of diaphragm |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008100703A1 (en) | 2008-08-21 |
| EP2132590A1 (en) | 2009-12-16 |
| KR20090113886A (en) | 2009-11-02 |
| JP2010519516A (en) | 2010-06-03 |
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