CA2160955A1 - Process and apparatus for the inspection of objects, particularly bottles - Google Patents
Process and apparatus for the inspection of objects, particularly bottlesInfo
- Publication number
- CA2160955A1 CA2160955A1 CA002160955A CA2160955A CA2160955A1 CA 2160955 A1 CA2160955 A1 CA 2160955A1 CA 002160955 A CA002160955 A CA 002160955A CA 2160955 A CA2160955 A CA 2160955A CA 2160955 A1 CA2160955 A1 CA 2160955A1
- Authority
- CA
- Canada
- Prior art keywords
- images
- process according
- mirrors
- image recording
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 18
- 238000007689 inspection Methods 0.000 title claims description 13
- 238000003384 imaging method Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000012141 concentrate Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- 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
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/9054—Inspection of sealing surface and container finish
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0078—Testing material properties on manufactured objects
- G01N33/0081—Containers; Packages; Bottles
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Spray Control Apparatus (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
To inspect the mouth of a container, a mirror arrangement with a plurality of plane mirrors is provided, which produces a plurality of images of the area to be inspected on the image sensor of a camera. This enables the surface area of the image sensor to be optimally utilized, and no imaging errors occur. Because only a single camera is involved, the cost of processing the camera signal is also reduced.
Description
- 21609~
PROCESS AND APPARATUS FOR THE INSPECTION OF OBJECTS, PARTICULARLY BOTTLES
The invention relates to a process for the inspection of objects, in particular the mouth regions of bottles, in which an image falls upon at least one image recording element and the image is evaluated. The invention also relates to an apparatus for the inspection of objects, in particular the mouth regions of bottles,-in .which an optical image is produced by means of an imaging system on at least one image recording element.
Such a process is known eg. from EP-A 209077 (Kirin Beer KK), whereby the mouth regions of bottles are inspected by means of a funnel-shaped mirror arrangement and a CCD camera. The image formed is circular, with concentric regions. The known arrangement has the drawback that the single circular image does not make efficient use of the rectangular CCD element of the camera. It is of course possible to obtain full coverage of the area to be inspected by arranging several cameras at angular intervals around the area concerned. However, this has the drawback of being very costly, especially as the observation of rapidly moving objects - as in bottle inspection - requires the use of highly expensive cameras, and moreover has the drawback that several images from different cameras then need processing, which substantially increases the cost on the image processing side.
It is therefore an object of the invention to provide a process which does not possess such drawbacks.
In a process of the abovementioned kind this is achieved by producing n images of the object on fewer than n image recording elements.
By producing a plurality of images of the object to be inspected on the image recording element, optimal use is made of the latter. As a number (n) of images are produced on a single image recording element, or are recorded by a single camera, the n images can therefore be .picked up by fewer than n cameras (usually by a single camera), thus reducing the equipment cost. For example, six images from six different viewing angles can be recorded by a single camera. The individual images can be juxtaposed on the image recording element, and only one camera output needs to be processed in order for all the images to be electronically acquired.
The n images are preferably generated by multiple reflection. Multiple reflection affords certain advantages. Good depth of focus can be obtained by having a long optical path and by using a long-focus camera lens.
A compact inspection apparatus can be obtained by deflection of the optical path.
Reflection is preferably obtained by using plane mirrors. This has the advantage of avoiding the optical errors which occur when curved mirrors are used.
It is also preferable for the ray paths generating all the images to be of equal length. Images of equal size are then formed, making interpretation easier.
2160gSS
It is also preferable for the set of images produced by the reflections to be arranged in a rectangular array. This results in optimal utilization of the image recording element, which is usually rectangular.
It is also an object of the invention to provide an apparatus which does not have the abovementioned drawbacks of known apparatus.
In an apparatus of the abovementioned kind this is achieved by constructing the imaging system so that a plurality of different images of the object can be produced on the image recording element. Preferably the image system comprises a number of plane mirrors.
By way of example, embodiments of the invention will now be described in detail with reference to the drawings, in which:
Fig. 1 shows in highly schematic form a known arrangement for inspecting an object;
Fig. 2 shows the object of Fig. 1 seen from above, with the desired directions of view;
Fig. 3 shows in highly schematic form an apparatus for carrying out the invention;
Fig. 4 shows, likewise in schematic form, the arrangement of images on an image recording element;
Fig. 5 shows a schematically illustrated mirror arrangement, seen from above and as viewed by the camera;
Fig. 6 shows the mirror arrangement shown in Fig.
5, in one elevation;
Fig. 7 shows the mirror arrangement shown in Fig.
5, in the other elevation at right-angles to the first;
Fig. 8 shows schematically an embodiment with additional mirrors and a lens system;
Fig. 9 is a view of the embodiment shown in Fig.
8, rotated through 90 ; and Fig. 10 shows the arrangement of an additional image on the CCD element.
Figs. 1 and 2 show an object 1 which is to be inspected from the side and from above. In this case the .object 1 is a container, eg. a returnable PET bottle which is being inspected upon return. This is intended merely as an example, as the object 1 could be any desired object.
In the case of the PET bottle shown in Figs. 1 and 2, it is eg. the mouth region which is to be inspected. According to the state of the art this could be done by using a number of cameras 2,3 etc. to picture the mouth region from different sides. The images received are then analysed in an image processing system (not shown) to determine whether the mouth region of the container 1 has a defect requiring the container to be withdrawn from circulation. In order to inspect the container with sufficient accuracy, the entire circumference of the mouth must be viewed. As can be seen in Fig. 2, this can be done by taking eg. six shots a to f pitched at 60- intervals and by analysing the result. It can be seen that the illustrated method requires the use of six cameras and that the individual pictures obtained by the six cameras have to be processed.
This is very expensive, as the bottles are running through the inspection unit at high speed (eg. at a rate of 750 bottles/minute), necessitating correspondingly expensive cameras and image recording systems.
The invention therefore proposes another way.
Fig. 3 shows, likewise in schematic form, a container 1 which is to be inspected: again, the container is assumed to be a returnable PET bottle. A single camera 5 is provided, recording several images of the bottle mouth by means of an imaging system 6. This imaging system 6 is .constructed so that several different images of the bottle mouth are generated on the image recording element of the camera 5. Such an image recording element 10, eg. as provided in the camera 5, is shown schematically in Fig. 4.
This will usually be in the form of a rectangular CCD image recording element. The image system 6 produces six different images 11 of the mouth region of the bottle 1 and projects them together onto the CCD element 10. These six different images 11 are generated on the CCD element in an arrangement adapted to the shape of the CCD, that is eg. in the rectangular arrangement shown. The six images 11 may be eg. the various images a to f according to Fig. 2. The six images are simultaneously formed by the imaging system 6 on the camera lens or on the image recording element 10, so that this image recording element is optimally utilized.
The six different views of the mouth region then constitute a single camera output signal, so that only one processing unit need be provided for the camera signal, and not several such units as has been the case in the conventional setup as shown in Fig. 1.
The imaging system 6 comprises a plurality of preferably plane mirrors which allow the camera 5 to observe several views of the object at the same time.
Preferably these views are six in number, as has already been described. Of course, a greater or smaller number of views may be produced by the imaging system if this is appropriate for the inspection of the object. For the inspection of PET bottles as illustrated, a reflecting surface 7 is preferably arranged under the mouth to reflect the light from an illuminating device 8, normally in a diffuse manner, so as to light up the mouth region. The reflecting surface 7, which could also be an emitting surface with built-in lighting, is preferably adapted to the number of images produced in that the surface 7 is composed of a number of adjoining surfaces equal to the number of images. This has the effect of concentrating light in each case on the corresponding mouth region to be imaged. In the case of inspection of PET bottles, the bottle 1 is in an inspection apparatus and is being traversed by a conveyor device 4 (not shown in detail) past a fixed imaging system 6 and camera 5. The conveyor device, which may be constructed eg. in the form of a carousel conveyor, will not be described further here, as such conveyors are known.
One example of an imaging system 6 will now be described in more detail with reference to Figs. 5, 6 and 7. As in the preceding example, six images of the mouth 2160~5~
area are generated simultaneously. In Figs. 5 and 6, in order to simplify the illustration, the mirrors are merely represented in schematic form as reflecting surfaces, and the corresponding mounts and the housing surrounding the mirrors are not shown. Fig. S shows a first view of the imaging system from above, ie. from the camera position.
The ensuing illustrations 6 and 7 show the same imaging system in elevation: in Fig. 6, from the side indicated by the arrow A in Fig. 5, and in Fig. 7, from the side .indicated by the arrow B in Fig. 5. The imaging system is constructed with plane mirrors which, as has been mentioned, have the advantage that imaging errors, which are unavoidable where curved mirrors are used, do not occur.
The imaging system in the example shown has a cambered mirror 25 constituting the last mirror before the lens 5, which can be seen in Figs. 6 and 7. The initial mirror for a given image is constituted by the mirrors 13, 14, 15, 16, 17 or 18, corresponding to the six views required. The mirrors 13 and 14, and also the mirrors 15 and 16, which are illustrated as separate mirrors, could also be constructed as one continuous mirror, which would simplify mounting in the actual assembly.
The ray path for one of the views of the mouth region of the container 1 is illustrated in Fig. 6. This ray path first of all passes via the mirror 13 and the intermediate mirror 19 onto the mirror 23 and from there back onto the mirror 25 and thence to the lens 5. Similar 21~09S5 ray paths also exist for the other three views obtained via the initial mirrors 14,15 and 16 respectively. Fig. 7, on the other hand, shows the ray path which exists for the two views of the mouth region of the container 1 which are obtained via the two initial mirrors 17 and 18, of which only the ray path via the mirror 18 is drawn in the figure.
This path passes via the mirror 18 to the intermediate mirror 23 and from there back to the mirror 25 and then to the lens 5. The preferred angle alpha (~) with respect to ,the vertical longitudinal axis of the container lies in the range 30- to 50 , in particular approximately 38-.
In the imaging system shown, all six ray paths are of essentially equal length, ie. six images of essentially equal size are formed on the image recording element 10. Furthermore, in the example shown the arrangement of the plane mirrors and the shapes of their margins are such that no shadowing occurs, that is to say, the mirrors for a given ray path do not obstruct the ray paths for other mirrors.
Fig. 8 shows an embodiment of the imaging system similar to those shown in Figs. 5 to 7, with an extra lens system 26 to allow the object to be additionally viewed from above. The mirror-pair 27,28 provides a lateral shift of the image. Fig. 10 shows the corresponding arrangement on the CCD element 10, with the added image 30. The lens system 26 serves to ad~ust the enlargement and the focusing plane. It may comprise any desired number of lenses, and may include lenses which extend the view in one direction 21609S~
g (eg. cylindrical lenses), resulting In better utilization of the CCD element. Fig. 9 shows the embodiment in Fig. 8 rotated through 90 .
Instead of the mirrors 27,28, another optical element can be used to effect the lateral shift, such as a prism with two mirror-coated surfaces, or a prism without such mirror coatings in which the shift occurs through refraction.
PROCESS AND APPARATUS FOR THE INSPECTION OF OBJECTS, PARTICULARLY BOTTLES
The invention relates to a process for the inspection of objects, in particular the mouth regions of bottles, in which an image falls upon at least one image recording element and the image is evaluated. The invention also relates to an apparatus for the inspection of objects, in particular the mouth regions of bottles,-in .which an optical image is produced by means of an imaging system on at least one image recording element.
Such a process is known eg. from EP-A 209077 (Kirin Beer KK), whereby the mouth regions of bottles are inspected by means of a funnel-shaped mirror arrangement and a CCD camera. The image formed is circular, with concentric regions. The known arrangement has the drawback that the single circular image does not make efficient use of the rectangular CCD element of the camera. It is of course possible to obtain full coverage of the area to be inspected by arranging several cameras at angular intervals around the area concerned. However, this has the drawback of being very costly, especially as the observation of rapidly moving objects - as in bottle inspection - requires the use of highly expensive cameras, and moreover has the drawback that several images from different cameras then need processing, which substantially increases the cost on the image processing side.
It is therefore an object of the invention to provide a process which does not possess such drawbacks.
In a process of the abovementioned kind this is achieved by producing n images of the object on fewer than n image recording elements.
By producing a plurality of images of the object to be inspected on the image recording element, optimal use is made of the latter. As a number (n) of images are produced on a single image recording element, or are recorded by a single camera, the n images can therefore be .picked up by fewer than n cameras (usually by a single camera), thus reducing the equipment cost. For example, six images from six different viewing angles can be recorded by a single camera. The individual images can be juxtaposed on the image recording element, and only one camera output needs to be processed in order for all the images to be electronically acquired.
The n images are preferably generated by multiple reflection. Multiple reflection affords certain advantages. Good depth of focus can be obtained by having a long optical path and by using a long-focus camera lens.
A compact inspection apparatus can be obtained by deflection of the optical path.
Reflection is preferably obtained by using plane mirrors. This has the advantage of avoiding the optical errors which occur when curved mirrors are used.
It is also preferable for the ray paths generating all the images to be of equal length. Images of equal size are then formed, making interpretation easier.
2160gSS
It is also preferable for the set of images produced by the reflections to be arranged in a rectangular array. This results in optimal utilization of the image recording element, which is usually rectangular.
It is also an object of the invention to provide an apparatus which does not have the abovementioned drawbacks of known apparatus.
In an apparatus of the abovementioned kind this is achieved by constructing the imaging system so that a plurality of different images of the object can be produced on the image recording element. Preferably the image system comprises a number of plane mirrors.
By way of example, embodiments of the invention will now be described in detail with reference to the drawings, in which:
Fig. 1 shows in highly schematic form a known arrangement for inspecting an object;
Fig. 2 shows the object of Fig. 1 seen from above, with the desired directions of view;
Fig. 3 shows in highly schematic form an apparatus for carrying out the invention;
Fig. 4 shows, likewise in schematic form, the arrangement of images on an image recording element;
Fig. 5 shows a schematically illustrated mirror arrangement, seen from above and as viewed by the camera;
Fig. 6 shows the mirror arrangement shown in Fig.
5, in one elevation;
Fig. 7 shows the mirror arrangement shown in Fig.
5, in the other elevation at right-angles to the first;
Fig. 8 shows schematically an embodiment with additional mirrors and a lens system;
Fig. 9 is a view of the embodiment shown in Fig.
8, rotated through 90 ; and Fig. 10 shows the arrangement of an additional image on the CCD element.
Figs. 1 and 2 show an object 1 which is to be inspected from the side and from above. In this case the .object 1 is a container, eg. a returnable PET bottle which is being inspected upon return. This is intended merely as an example, as the object 1 could be any desired object.
In the case of the PET bottle shown in Figs. 1 and 2, it is eg. the mouth region which is to be inspected. According to the state of the art this could be done by using a number of cameras 2,3 etc. to picture the mouth region from different sides. The images received are then analysed in an image processing system (not shown) to determine whether the mouth region of the container 1 has a defect requiring the container to be withdrawn from circulation. In order to inspect the container with sufficient accuracy, the entire circumference of the mouth must be viewed. As can be seen in Fig. 2, this can be done by taking eg. six shots a to f pitched at 60- intervals and by analysing the result. It can be seen that the illustrated method requires the use of six cameras and that the individual pictures obtained by the six cameras have to be processed.
This is very expensive, as the bottles are running through the inspection unit at high speed (eg. at a rate of 750 bottles/minute), necessitating correspondingly expensive cameras and image recording systems.
The invention therefore proposes another way.
Fig. 3 shows, likewise in schematic form, a container 1 which is to be inspected: again, the container is assumed to be a returnable PET bottle. A single camera 5 is provided, recording several images of the bottle mouth by means of an imaging system 6. This imaging system 6 is .constructed so that several different images of the bottle mouth are generated on the image recording element of the camera 5. Such an image recording element 10, eg. as provided in the camera 5, is shown schematically in Fig. 4.
This will usually be in the form of a rectangular CCD image recording element. The image system 6 produces six different images 11 of the mouth region of the bottle 1 and projects them together onto the CCD element 10. These six different images 11 are generated on the CCD element in an arrangement adapted to the shape of the CCD, that is eg. in the rectangular arrangement shown. The six images 11 may be eg. the various images a to f according to Fig. 2. The six images are simultaneously formed by the imaging system 6 on the camera lens or on the image recording element 10, so that this image recording element is optimally utilized.
The six different views of the mouth region then constitute a single camera output signal, so that only one processing unit need be provided for the camera signal, and not several such units as has been the case in the conventional setup as shown in Fig. 1.
The imaging system 6 comprises a plurality of preferably plane mirrors which allow the camera 5 to observe several views of the object at the same time.
Preferably these views are six in number, as has already been described. Of course, a greater or smaller number of views may be produced by the imaging system if this is appropriate for the inspection of the object. For the inspection of PET bottles as illustrated, a reflecting surface 7 is preferably arranged under the mouth to reflect the light from an illuminating device 8, normally in a diffuse manner, so as to light up the mouth region. The reflecting surface 7, which could also be an emitting surface with built-in lighting, is preferably adapted to the number of images produced in that the surface 7 is composed of a number of adjoining surfaces equal to the number of images. This has the effect of concentrating light in each case on the corresponding mouth region to be imaged. In the case of inspection of PET bottles, the bottle 1 is in an inspection apparatus and is being traversed by a conveyor device 4 (not shown in detail) past a fixed imaging system 6 and camera 5. The conveyor device, which may be constructed eg. in the form of a carousel conveyor, will not be described further here, as such conveyors are known.
One example of an imaging system 6 will now be described in more detail with reference to Figs. 5, 6 and 7. As in the preceding example, six images of the mouth 2160~5~
area are generated simultaneously. In Figs. 5 and 6, in order to simplify the illustration, the mirrors are merely represented in schematic form as reflecting surfaces, and the corresponding mounts and the housing surrounding the mirrors are not shown. Fig. S shows a first view of the imaging system from above, ie. from the camera position.
The ensuing illustrations 6 and 7 show the same imaging system in elevation: in Fig. 6, from the side indicated by the arrow A in Fig. 5, and in Fig. 7, from the side .indicated by the arrow B in Fig. 5. The imaging system is constructed with plane mirrors which, as has been mentioned, have the advantage that imaging errors, which are unavoidable where curved mirrors are used, do not occur.
The imaging system in the example shown has a cambered mirror 25 constituting the last mirror before the lens 5, which can be seen in Figs. 6 and 7. The initial mirror for a given image is constituted by the mirrors 13, 14, 15, 16, 17 or 18, corresponding to the six views required. The mirrors 13 and 14, and also the mirrors 15 and 16, which are illustrated as separate mirrors, could also be constructed as one continuous mirror, which would simplify mounting in the actual assembly.
The ray path for one of the views of the mouth region of the container 1 is illustrated in Fig. 6. This ray path first of all passes via the mirror 13 and the intermediate mirror 19 onto the mirror 23 and from there back onto the mirror 25 and thence to the lens 5. Similar 21~09S5 ray paths also exist for the other three views obtained via the initial mirrors 14,15 and 16 respectively. Fig. 7, on the other hand, shows the ray path which exists for the two views of the mouth region of the container 1 which are obtained via the two initial mirrors 17 and 18, of which only the ray path via the mirror 18 is drawn in the figure.
This path passes via the mirror 18 to the intermediate mirror 23 and from there back to the mirror 25 and then to the lens 5. The preferred angle alpha (~) with respect to ,the vertical longitudinal axis of the container lies in the range 30- to 50 , in particular approximately 38-.
In the imaging system shown, all six ray paths are of essentially equal length, ie. six images of essentially equal size are formed on the image recording element 10. Furthermore, in the example shown the arrangement of the plane mirrors and the shapes of their margins are such that no shadowing occurs, that is to say, the mirrors for a given ray path do not obstruct the ray paths for other mirrors.
Fig. 8 shows an embodiment of the imaging system similar to those shown in Figs. 5 to 7, with an extra lens system 26 to allow the object to be additionally viewed from above. The mirror-pair 27,28 provides a lateral shift of the image. Fig. 10 shows the corresponding arrangement on the CCD element 10, with the added image 30. The lens system 26 serves to ad~ust the enlargement and the focusing plane. It may comprise any desired number of lenses, and may include lenses which extend the view in one direction 21609S~
g (eg. cylindrical lenses), resulting In better utilization of the CCD element. Fig. 9 shows the embodiment in Fig. 8 rotated through 90 .
Instead of the mirrors 27,28, another optical element can be used to effect the lateral shift, such as a prism with two mirror-coated surfaces, or a prism without such mirror coatings in which the shift occurs through refraction.
Claims (17)
1. Process for the inspection of objects, in which an optical image is produced on at least one image recording element and the image is evaluated, characterized in that n images of the object are produced on fewer than n image recording elements.
2. Process according to claim 1, characterized in that the images are generated by multiple reflection of the object.
3. Process according to claim 2, characterized in that the images are generated by means of plane mirrors.
4. Process according to any one of claims 1 to 3, characterized in that the ray paths generating the various images are of essentially equal length for each image so that images of equal size are produced.
5. Process according to claim 2, characterized in that different numbers of reflections occur for different images.
6. Process according to claim 1, 2, 3 or 5, characterized in that a square or rectangular sensor is provided as image recording element and in that the images are generated thereon in a square or rectangular array.
7. Process according to claim 1, 2, 3 or 5, characterized in that six images which together form a 360°
view of the object are generated on the image recording element.
view of the object are generated on the image recording element.
8. Process according to claim 1, 2, 3 or 5, characterized in that the images are formed at an angle of about 30° to 50° to a vertical axis of the object.
9. Process according to claim 1, 2, 3 or 5, characterized in that the images are formed at an angle of approximately 38° to a vertical axis of the object.
10. Apparatus for the inspection of objects, in which an optical image is produced by means of an imaging system on at least one image recording element, characterized in that the imaging system is constructed so that a plurality of different images of the object can be produced on the image recording element.
11. Apparatus according to claim 10, characterized in that the imaging system comprises a number of plane mirrors and in that each image can be generated by multiple reflections.
12. Apparatus according to claim 11, characterized in that different images of said plurality of images are produced by different numbers of mirrors.
13. Apparatus according to claim 11, characterized in that the imaging system comprises a first group of initial mirrors and a second group of initial mirrors located nearer to the image recording element, a third group of intermediate mirrors assigned to the first group, and final mirrors assigned to the first and second groups.
14. Apparatus according to claim 10, 11, 12 or 13, characterized in that the object is imaged via an arrangement of lenses.
15. Apparatus according to claim 10, 11, 12 or 13, characterized in that an illuminating device is provided to light the object and to concentrate the illumination on the regions of the object which are to be imaged.
16. Process according to claim 1, 2, 3 or 5, characterized in that said objects are mouth regions of bottles.
17. Process according to claim 10, 11, 12 or 13, characterized in that said objects are mouth regions of bottles.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH03151/94A CH688663A5 (en) | 1994-10-20 | 1994-10-20 | Method and apparatus for inspecting objects, particularly bottles. |
| CH03151/94-5 | 1994-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2160955A1 true CA2160955A1 (en) | 1996-04-21 |
Family
ID=4249722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002160955A Abandoned CA2160955A1 (en) | 1994-10-20 | 1995-10-19 | Process and apparatus for the inspection of objects, particularly bottles |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0708325B1 (en) |
| JP (1) | JPH08210990A (en) |
| KR (1) | KR960014918A (en) |
| CN (1) | CN1129803A (en) |
| AT (1) | ATE179518T1 (en) |
| BR (1) | BR9504479A (en) |
| CA (1) | CA2160955A1 (en) |
| CH (1) | CH688663A5 (en) |
| DE (1) | DE59505761D1 (en) |
| FI (1) | FI954932A (en) |
| NO (1) | NO954184L (en) |
| PL (1) | PL311015A1 (en) |
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| DE19542630C2 (en) * | 1995-11-15 | 2001-10-11 | Thomas Huhn | Device and method for testing vessel walls |
| PT836093E (en) * | 1996-10-10 | 2004-06-30 | Elpatronic Ag | PROCESS AND DEVICE FOR THE OPTICAL VERIFICATION OF WELDING SEAMS |
| JP3614597B2 (en) * | 1996-10-24 | 2005-01-26 | 三菱原子燃料株式会社 | Internal imaging device |
| US6211952B1 (en) * | 1998-10-02 | 2001-04-03 | Agr International, Inc. | Method and apparatus for inspecting glass containers for checks |
| DE19909986C2 (en) * | 1999-03-06 | 2002-08-29 | Kostal Leopold Gmbh & Co Kg | Optoelectronic monitoring device for a motor vehicle |
| DE29919761U1 (en) * | 1999-11-10 | 2000-12-21 | Krones Ag | Inspection machine |
| KR20020038929A (en) * | 2002-05-07 | 2002-05-24 | 박원재 | Inspection apparatus for mouse inside of PET bottle |
| CN100458422C (en) * | 2002-08-12 | 2009-02-04 | 广西师范大学 | Glass Bottle and can detecting method and detecting device |
| TWI388798B (en) * | 2004-11-30 | 2013-03-11 | Shibaura Mechatronics Corp | Apparatus for testing a surface and method of testing a surface |
| DE102008062385C5 (en) * | 2008-12-17 | 2016-10-20 | Khs Gmbh | Method and inspection device for checking containers |
| WO2012042582A1 (en) * | 2010-09-27 | 2012-04-05 | 東洋ガラス株式会社 | Glass bottle inspection device |
| CN103364414A (en) * | 2012-04-05 | 2013-10-23 | 庞红斌 | Special optical system for detecting bodies of glass bottles |
| KR20170003717U (en) | 2016-04-19 | 2017-10-27 | 박정은 | Screw for fixing with expansion wing support |
| DE102019117260A1 (en) * | 2019-06-26 | 2020-12-31 | Seidenader Maschinenbau Gmbh | Device for the optical inspection of empty and liquid-filled containers |
| CN110793974A (en) * | 2019-11-27 | 2020-02-14 | 湖南科创信息技术股份有限公司 | Panel material edge defect detecting system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3035082A1 (en) * | 1980-09-17 | 1982-04-22 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND ARRANGEMENT FOR THE OPTICAL-ELECTRONIC DETECTION OF SURFACE STRUCTURES ON ROTATION-SYMMETRIC BODIES |
| JPS5821146A (en) * | 1981-07-30 | 1983-02-07 | Kirin Brewery Co Ltd | Method and device for inspection of defect |
| JPS6212845A (en) | 1985-07-10 | 1987-01-21 | Kirin Brewery Co Ltd | Detecting device for defect on screwed port part of bottle |
| JPH0641924B2 (en) * | 1988-05-27 | 1994-06-01 | 株式会社キリンテクノシステム | Defect detection device for bottle body |
| NL8802931A (en) * | 1988-11-28 | 1990-06-18 | Heuft Qualiplus Bv | METHOD AND APPARATUS FOR DETECTING CRACKS IN THE MOUTHZONE OF A TRANSPARENT HOLDER |
| JPH0587742A (en) * | 1991-09-30 | 1993-04-06 | Fuji Electric Co Ltd | Device for observing three-dimensional object |
| US5256871A (en) * | 1992-12-22 | 1993-10-26 | Emhart Glass Machinery Investments Inc. | Machine for video inspection of glass containers with intersecting light beams |
-
1994
- 1994-10-20 CH CH03151/94A patent/CH688663A5/en not_active IP Right Cessation
-
1995
- 1995-07-31 EP EP95111983A patent/EP0708325B1/en not_active Expired - Lifetime
- 1995-07-31 DE DE59505761T patent/DE59505761D1/en not_active Expired - Fee Related
- 1995-07-31 AT AT95111983T patent/ATE179518T1/en not_active IP Right Cessation
- 1995-10-05 KR KR1019950034060A patent/KR960014918A/en not_active Application Discontinuation
- 1995-10-17 FI FI954932A patent/FI954932A/en not_active Application Discontinuation
- 1995-10-18 PL PL95311015A patent/PL311015A1/en unknown
- 1995-10-19 BR BR9504479A patent/BR9504479A/en not_active Application Discontinuation
- 1995-10-19 NO NO954184A patent/NO954184L/en unknown
- 1995-10-19 CA CA002160955A patent/CA2160955A1/en not_active Abandoned
- 1995-10-20 CN CN95118030A patent/CN1129803A/en active Pending
- 1995-10-20 JP JP7272739A patent/JPH08210990A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431405A (en) * | 2017-02-06 | 2019-11-08 | 东洋玻璃株式会社 | The check device of vial |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960014918A (en) | 1996-05-22 |
| NO954184D0 (en) | 1995-10-19 |
| EP0708325A1 (en) | 1996-04-24 |
| DE59505761D1 (en) | 1999-06-02 |
| PL311015A1 (en) | 1996-04-29 |
| FI954932A (en) | 1996-04-21 |
| FI954932A0 (en) | 1995-10-17 |
| JPH08210990A (en) | 1996-08-20 |
| NO954184L (en) | 1996-04-22 |
| CN1129803A (en) | 1996-08-28 |
| BR9504479A (en) | 1997-05-20 |
| EP0708325B1 (en) | 1999-04-28 |
| ATE179518T1 (en) | 1999-05-15 |
| CH688663A5 (en) | 1997-12-31 |
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Legal Events
| Date | Code | Title | Description |
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| FZDE | Discontinued |