CN204536225U - A kind of pick-up unit distinguishing transparent thin board upper and lower surface image - Google Patents
A kind of pick-up unit distinguishing transparent thin board upper and lower surface image Download PDFInfo
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- CN204536225U CN204536225U CN201520228061.3U CN201520228061U CN204536225U CN 204536225 U CN204536225 U CN 204536225U CN 201520228061 U CN201520228061 U CN 201520228061U CN 204536225 U CN204536225 U CN 204536225U
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- 238000012634 optical imaging Methods 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 20
- 230000004069 differentiation Effects 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
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Abstract
The utility model discloses a kind of pick-up unit distinguishing transparent thin board upper and lower surface image, the standard transparent thin plate of image is had to correct with known upper surface before detecting, make the formed position consistency of image in respective collection figure in two groups of optical imaging systems, by connecting gear, tested transparent thin board is transported to the position of standard transparent thin plate detection again, utilizes two groups of optical imaging systems to detect; During detection, if image is at the upper surface of tested transparent thin board, then in two groups of optical imaging systems become the position that image is gathering in figure separately identical; If image is at the lower surface of tested transparent thin board, then in two groups of optical imaging systems become image to gather separately the position in figure different.The utility model structure is simple, is easy to realize; The differentiation of transparent thin board upper and lower surface image can be realized fast; The utility model can carry out with the detection detecting other characteristics of image such as thin sheet surface flaw simultaneously.
Description
Technical field
The utility model relates to technical field of image detection, in particular, relates to the detection method that a kind of on-line checkingi distinguishes transparent thin board upper and lower surface image.
Background technology
Transparent thin board such as sheet glass, touch-screen glass etc. are rapidly popularized in the demand of consumer electronics industry, and its benefit produced has unshakable status in national economy, and China is also the big producing country of transparent thin board product.Surface quality detection after current transparent thin board Product processing still mainly relies on manual detection, and efficiency is low, poor stability, workman's working strength are large.Also there is part testing product to rely on computer vision technique to detect, the flaw on transparent thin board or surface image can be collected, but these flaws cannot be distinguished or surface image is positioned at upper surface or lower surface, therefore cannot replace manual detection completely.
Therefore, need a kind of method distinguishing upper and lower surface image, realize the quick online detection distinguishing transparent thin board upper and lower surface image.
Utility model content
The purpose of this utility model is to overcome the deficiency that existing transparent thin board can not distinguish upper and lower surface image, provides a kind of quick online detection device that occasionally can realize distinguishing transparent thin board upper and lower surface image.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of pick-up unit distinguishing transparent thin board upper and lower surface image, the device adopted is two groups of optical imaging systems, frame, tested transparent thin board and connecting gear, two groups of optical imaging systems are angled to be fixed in frame, tested transparent thin board is placed on the transfer mechanism, and connecting gear is arranged in frame.
The detection method utilizing said apparatus to carry out comprises the following steps: have the standard transparent thin plate of image to correct with known upper surface before detecting, make the formed position consistency of image in respective collection figure in two groups of optical imaging systems, by connecting gear, tested transparent thin board is transported to the position of standard transparent thin plate detection again, utilizes two groups of optical imaging systems to detect; During detection, if image is at the upper surface of tested transparent thin board, then in two groups of optical imaging systems become the position that image is gathering in figure separately identical; If image is at the lower surface of tested transparent thin board, then in two groups of optical imaging systems become image to gather separately the position in figure different; By to compare in two groups of optical imaging systems become the coordinate of image can differentiate between images at the upper surface of tested transparent thin board or lower surface.
Further, described two groups of optical imaging system installation sites are different relative to the normal angle of tested transparent thin board.
Further, two groups of optical imaging systems adopt linear array scanning camera.
Further, two groups of optical imaging systems adopt planar array scanning camera.
Technical conceive of the present utility model is: adopt two groups of optical imaging systems to gather image with differentiate between images at the upper surface of thin plate or lower surface simultaneously.If tested transparent thin board horizontal positioned, between first group of optical imaging system and second group of optical imaging system, angle is α, the same position focusing on thin plate of two groups of optical imaging systems.Before detection, use known upper surface to have the standard transparent thin plate of image to correct two groups of optical systems, make the position consistency of two images correspondence in collection figure formed in first group of optical imaging system and second group of optical imaging system; Carrying out tested transparent thin board sensing chamber, when image is when the lower surface of tested transparent thin board, due to the refraction effect of tested transparent thin board, the position of image imaging in second group of optical imaging system is made to be equipped with an offset deviation with actual bit in the horizontal direction, this deviation is relevant with the setting angle α of gauge of sheet and two groups of optical imaging systems, when α is larger, this offset deviation is also larger.Assuming that first group of optical imaging system is directly over tested transparent thin board, the picture offset deviation in the horizontal direction that image on lower surface becomes in first group of optical imaging system is zero, therefore, by comparing the displacement of image in two groups of imaging systems of generation, can judge that this image is at the upper surface of tested transparent thin board or lower surface.
The beneficial effects of the utility model are: the utility model structure is simple, are easy to realize; The differentiation of transparent thin board upper and lower surface image can be realized fast; The utility model can carry out with the detection detecting other characteristics of image such as thin sheet surface flaw simultaneously.
Accompanying drawing explanation
Fig. 1 is the image detection architecture schematic diagram of the utility model image when upper surface.
Fig. 2 is the image detection architecture schematic diagram of the utility model image when lower surface.
In figure, the tested transparent thin board of 1-, 2-frame, 3-optical imaging system, 4-connecting gear, 5-image.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1 and Figure 2, a kind of pick-up unit distinguishing transparent thin board upper and lower surface image, the device adopted is two groups of optical imaging systems 3, frame 2, tested transparent thin board 1 and connecting gear 4, two groups of optical imaging systems 3 are angled to be fixed in frame 2, tested transparent thin board 1 is placed on connecting gear 4, and connecting gear 4 is arranged in frame 2; The method comprises the following steps: have the standard transparent thin plate of image to correct with known upper surface before detecting, make the formed position consistency of image in respective collection figure in two groups of optical imaging systems 3, by connecting gear 4, tested transparent thin board 1 is transported to the position of standard transparent thin plate detection again, utilizes two groups of optical imaging systems 3 to detect; During detection, if image 5 is at the upper surface of tested transparent thin board 1, then in two groups of optical imaging systems 3 become the position that image is gathering in figure separately identical; If image 5 is at the lower surface of tested transparent thin board 1, then in two groups of optical imaging systems 3 become image 5 to gather separately the position in figure different; By to compare in two groups of optical imaging systems 3 become the coordinate of image can differentiate between images 5 at the upper surface of tested transparent thin board 1 or lower surface.
Described two groups of optical imaging system 3 installation sites are different relative to the normal angle of tested transparent thin board 1.
Two groups of optical imaging systems 3 adopt linear array scanning camera or planar array scanning camera.
Technical conceive of the present utility model is: adopt two groups of optical imaging systems to gather image with differentiate between images at the upper surface of thin plate or lower surface simultaneously.If tested transparent thin board horizontal positioned, between first group of optical imaging system and second group of optical imaging system, angle is α, the same position focusing on thin plate of two groups of optical imaging systems.Before detection, use known upper surface to have the standard transparent thin plate of image to correct two groups of optical systems, make the position consistency of two images correspondence in collection figure formed in first group of optical imaging system and second group of optical imaging system; Carrying out tested transparent thin board sensing chamber, when image is when the lower surface of tested transparent thin board, due to the refraction effect of tested transparent thin board, the position of image imaging in second group of optical imaging system is made to be equipped with an offset deviation with actual bit in the horizontal direction, this deviation is relevant with the setting angle α of gauge of sheet and two groups of optical imaging systems, when α is larger, this offset deviation is also larger.Assuming that first group of optical imaging system is directly over tested transparent thin board, the picture offset deviation in the horizontal direction that image on lower surface becomes in first group of optical imaging system is zero, therefore, by comparing the displacement of image in two groups of imaging systems of generation, can judge that this image is at the upper surface of tested transparent thin board or lower surface.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (4)
1. distinguish the pick-up unit of transparent thin board upper and lower surface image for one kind, it is characterized in that: the device of employing is two groups of optical imaging systems (3), frame (2), tested transparent thin board (1) and connecting gear (4), two groups of optical imaging systems (3) are angled to be fixed in frame (2), tested transparent thin board (1) is placed on connecting gear (4), and connecting gear (4) is arranged in frame (2).
2. a kind of pick-up unit distinguishing transparent thin board upper and lower surface image according to claim 1, is characterized in that: described two groups of optical imaging system (3) installation sites are different relative to the normal angle of tested transparent thin board (1).
3. a kind of pick-up unit distinguishing transparent thin board upper and lower surface image according to claim 1, is characterized in that: two groups of optical imaging systems (3) adopt linear array scanning camera.
4. a kind of pick-up unit distinguishing transparent thin board upper and lower surface image according to claim 1, is characterized in that: two groups of optical imaging systems (3) adopt planar array scanning camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228061.3U CN204536225U (en) | 2015-04-15 | 2015-04-15 | A kind of pick-up unit distinguishing transparent thin board upper and lower surface image |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228061.3U CN204536225U (en) | 2015-04-15 | 2015-04-15 | A kind of pick-up unit distinguishing transparent thin board upper and lower surface image |
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| Publication Number | Publication Date |
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| CN204536225U true CN204536225U (en) | 2015-08-05 |
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| CN201520228061.3U Expired - Fee Related CN204536225U (en) | 2015-04-15 | 2015-04-15 | A kind of pick-up unit distinguishing transparent thin board upper and lower surface image |
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| CN (1) | CN204536225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917918A (en) * | 2017-11-17 | 2018-04-17 | 南京大学 | A kind of detection method of the discriminating ultrathin transparent plate surface flaw based on mirror-reflection |
-
2015
- 2015-04-15 CN CN201520228061.3U patent/CN204536225U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917918A (en) * | 2017-11-17 | 2018-04-17 | 南京大学 | A kind of detection method of the discriminating ultrathin transparent plate surface flaw based on mirror-reflection |
| CN107917918B (en) * | 2017-11-17 | 2021-02-23 | 南京大学 | Detection method for identifying surface flaws of ultrathin transparent plate based on specular reflection |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20180415 |