CN1849508A - Method and device for detecting defects of glass sheet - Google Patents
Method and device for detecting defects of glass sheet Download PDFInfo
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- CN1849508A CN1849508A CNA200480024850XA CN200480024850A CN1849508A CN 1849508 A CN1849508 A CN 1849508A CN A200480024850X A CNA200480024850X A CN A200480024850XA CN 200480024850 A CN200480024850 A CN 200480024850A CN 1849508 A CN1849508 A CN 1849508A
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- 239000011521 glass Substances 0.000 title claims abstract description 162
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- G01N21/88—Investigating the presence of flaws or contamination
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- 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
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- 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
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- 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
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
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Abstract
A device (40) for detecting chips at the edge on the first main surface (41a) side of a glass sheet (41) having an obscured-glass-like end surface (41c) and at the edge on the second main surface (41b) side thereof. A first camera (42) for observing the edge on the first main surface (41a) side and a second camera (43) for observing the edge on the second main surface (41b) side are inclined to the normals (53, 54) to the glass sheet. When a chip exists on the first main surface side, a first light source (44) light is refracted by the chip, and the refracted light is captured by the first camera. When a chip exists on the second main surface side, a second light source (45) light is refracted by the chip, and the refracted light is captured by the second camera.
Description
Technical field
The present invention relates to for example detect method and the device that whether produces breach in the edge of glass plates such as automotive glass plate and glass substrate for disc.
Background technology
Usually, has sharp keen edge by the end face that cuts off the glass plate that produces.As shown in figure 10, glass plate 21 is carried out chamfering, form end face 22 with chamfered section 22a, 22b.Perhaps, as shown in figure 11, grinding, the whole end face 22 of grinding form level and smooth curved surface 23.As shown in figure 12, grinding and grinding cause defectives such as the distinctive breach 24 of glass sometimes in end face 22.
We know the device (for example, with reference to patent documentation 1) that has inspection whether to have defectives such as breach 24 in the edge of glass plate 21.Existing defect detecting device is equipped with camera and light source, disposes glass plate between camera and light source.In the past, adjusted the light quantity from the light source to the camera, and made and using interarea with respect to glass plate to be configured in the image of camera of vertical direction, the interarea of glass plate and end face deepening, and also the defective at edge brightens.By the adjusting of light quantity, can detect breach.
Patent documentation 1: the spy opens the 2001-153816 communique
But, be that there is following problem in existing flaw detection apparatus under the such translucent situation of devitrified glass state at end face or edge.
As shown in figure 13, camera 30 vertically disposes with respect to glass plate 31.Exist under the situation of breach 32 with the edge of the interarea 31a of the opposite side of camera 30 opposed interareas, this breach 32 is hidden by the shadow of translucent end face 33.Therefore, be difficult to detect breach 32.As shown in phantom in Figure 13, this problem is under the situation that end face 33 asymmetricly grinds with respect to the central plane of glass plate 31, and is more remarkable.
In addition, as shown in figure 14, exist under the situation of breach 34 in the edge with camera 30 opposed interarea 31b sides, translucent end face 33 is present in the rear of this breach 34.In this case, because of being subjected to the influence of translucent end face 33, be difficult to detect breach 34.Such as shown in phantom in Figure 14, this problem is more remarkable under the situation that end face 33 asymmetricly grinds with respect to the central plane of glass plate 31.
Summary of the invention
The present invention is conceived to these existing problems and carries out, and its purpose is: even provide end face to be in the devitrified glass state, also can detect the method and the device of the breach of glass plate accurately.
A kind of mode of the present invention is: in the glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detect the method jaggy whether in the above-mentioned the 1st and the 2nd edge.This method comprises: preparation has the 1st image unit of the 1st sight line of the breach that detects above-mentioned the 1st edge, has the 2nd image unit of the 2nd sight line of the breach that detects above-mentioned the 2nd edge, the 1st and the 2nd lighting unit; Dispose above-mentioned the 1st image unit, make above-mentioned the 1st sight line with respect to the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt; With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of the above-mentioned sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, with above-mentioned the 1st lighting unit be configured in above-mentioned the 2nd interarea near; Dispose above-mentioned the 2nd image unit, make above-mentioned the 2nd sight line tilt towards above-mentioned the 1st interarea with respect to above-mentioned normal; With respect to extended line from above-mentioned the 2nd sight line of the position outgoing that does not have breach of above-mentioned the 2nd interarea, with above-mentioned the 2nd lighting unit be configured in above-mentioned the 2nd interarea near.
Another kind of mode of the present invention is provided to be had the 1st interarea, in the glass plate at the 1st edge between end face, above-mentioned the 1st interarea and the above-mentioned end face between the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detects the device jaggy whether in the above-mentioned the 1st and the 2nd edge.This installs outfit: the 1st image unit, be configured in the 1st interarea side of above-mentioned glass plate, and have the 1st sight line of the breach that detects above-mentioned the 1st edge; The 2nd image unit is configured in the 1st interarea side of above-mentioned glass plate, has the 2nd sight line of the breach that detects above-mentioned the 2nd edge; The 1st lighting unit is configured in the 2nd interarea side of above-mentioned glass plate; And the 2nd lighting unit, be configured in the 2nd interarea side of above-mentioned glass plate.Above-mentioned the 1st sight line with respect to the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of above-mentioned the 2nd interarea, above-mentioned the 1st lighting unit be configured in above-mentioned the 2nd interarea near, above-mentioned the 2nd sight line tilts towards above-mentioned the 1st interarea with respect to above-mentioned normal, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of above-mentioned the 2nd interarea, above-mentioned the 2nd lighting unit be configured in above-mentioned the 2nd interarea near.
Another mode of the present invention is provided to be had the 1st interarea, in the glass plate at the 1st edge between end face, above-mentioned the 1st interarea and the above-mentioned end face between the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detects the method jaggy whether in the above-mentioned the 1st and the 2nd edge.This method is equipped with: the operation of preparing 1 image unit, 2 reflecting members, the 1st lighting unit, the 2nd lighting unit; Above-mentioned 2 reflecting members are configured in the visual field of above-mentioned image unit, make above-mentioned image unit have the 1st sight line of the breach that detects above-mentioned the 1st edge and the operation of the 2nd sight line of the breach at the edge of the 2nd interarea side that detects above-mentioned glass plate; Dispose above-mentioned the 1st image unit, make above-mentioned the 1st sight line with respect to the operation of the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt; With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and, above-mentioned the 1st lighting unit being configured near the operation of above-mentioned the 2nd interarea from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate; Dispose above-mentioned the 1st image unit, make above-mentioned the 2nd sight line with respect to the operation of above-mentioned normal towards above-mentioned the 1st interarea inclination; And with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and, above-mentioned the 2nd lighting unit being configured near the operation of above-mentioned the 2nd interarea from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate.
Another mode of the present invention is provided to be had the 1st interarea, in the glass plate at the 1st edge between end face, above-mentioned the 1st interarea and the above-mentioned end face between the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detects the device jaggy whether in the above-mentioned the 1st and the 2nd edge.This installs outfit: 1 image unit; 2 reflecting members, be to be configured in the visual field of above-mentioned image unit, make above-mentioned image unit have to detect 2 reflecting members of the 1st sight line and the 2nd sight line of the breach that detects above-mentioned the 2nd edge of breach at the 1st edge of above-mentioned glass plate, the above-mentioned the 1st and the 2nd sight line tilts with respect to above-mentioned the 1st interarea; The 1st lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near; And the 2nd lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near.
Another mode of the present invention is provided to be had the 1st interarea, in the glass plate at the 1st edge between end face, above-mentioned the 1st interarea and the above-mentioned end face between the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detects the device jaggy whether in the above-mentioned the 1st and the 2nd edge.This installs outfit: 1 image unit; 2 reflecting members, be to be configured in the visual field of above-mentioned image unit, make above-mentioned image unit have 2 reflecting members of the 1st sight line with the 2nd sight line of the breach that detects above-mentioned the 2nd edge of the breach that detects above-mentioned the 1st edge, the above-mentioned the 1st and the 2nd sight line tilts with respect to above-mentioned the 1st interarea; The 1st lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near; And the 2nd lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 2nd interarea and from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of the 1st interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near.
Another mode of the present invention is provided to be had the 1st interarea, in the glass plate at the 1st edge between end face, above-mentioned the 1st interarea and the above-mentioned end face between the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detects the device jaggy whether in the above-mentioned the 1st and the 2nd edge.This installs outfit: the 1st image unit, take above-mentioned the 1st edge of above-mentioned glass plate obliquely; The 2nd image unit is taken above-mentioned the 2nd edge of above-mentioned glass plate obliquely; The 1st lighting unit is the 1st a luminous lighting unit, only is configured in above-mentioned the 1st edge when jagged, arrives above-mentioned the 1st image unit from the light of above-mentioned the 1st lighting unit by above-mentioned glass plate; The 2nd lighting unit is the 2nd a luminous lighting unit, only is configured in above-mentioned the 2nd edge when jagged, arrives above-mentioned the 2nd image unit from the light of above-mentioned the 2nd lighting unit by above-mentioned glass plate; And discriminating gear, based on the image of taking by the above-mentioned the 1st and the 2nd image unit, differentiate whether jagged in the above-mentioned the 1st and the 2nd edge.
Description of drawings
Fig. 1 is the skeleton diagram of optical system of the defects of glass sheet pick-up unit of the present invention's the 1st embodiment.
Fig. 2 is the block scheme of the defect detecting device of Fig. 1.
Fig. 3 is near the incident light of the end face of expression glass plate and the key diagram of emergent light.
Fig. 4 is the key diagram of expression the 2nd camera and the 2nd configured light sources.
Fig. 5 is the key diagram of expression the 1st camera and the 1st configured light sources.
Fig. 6 is the incident angle of light at the edge of expression by having breach and the key diagram of shooting angle.
Fig. 7 is the incident angle of light at the edge of expression by there not being breach and the key diagram of shooting angle.
Fig. 8 is the skeleton diagram of optical system of the defects of glass sheet pick-up unit of the present invention's the 2nd embodiment.
Fig. 9 is the skeleton diagram of optical system of the defects of glass sheet pick-up unit of the present invention's the 3rd embodiment.
Figure 10 is the partial enlarged drawing of the glass plate after the chamfering.
Figure 11 is the partial enlarged drawing of the glass plate behind the end surface grinding.
Figure 12 is the stereographic map that has the glass plate of breach in edge.
Figure 13 is the key diagram of the 1st prior art that detects the breach of glass plate.
Figure 14 is the key diagram of the 2nd prior art that detects the breach of glass plate.
Embodiment
Below, with reference to Fig. 1～Fig. 7, the device and method of defective of the detection glass plate of the present invention's the 1st embodiment is described.
Whether the edge of the end face 41c that the defect detecting device 40 of the 1st embodiment is checked at glass plate 41 is jagged.The end face 41c of glass plate 41 grinds bevel normally, is in translucent (devitrified glass state).On the other hand, barbed portion has the minute surface of cleaning.Defect detecting device 40 utilizes the refraction of light in the end face 41c phenomenon different with barbed portion, detects breach.Glass plate 41 for example is to have the 1st interarea 41a that is parallel to each other and the glass substrate for disc of the 2nd interarea 41b.
In one embodiment, the 1st camera 42 and the 2nd camera 43 are CCD cameras, and the 1st light source 44 and the 2nd light source 45 are pointolite, line source or the area sources with formations such as semiconductor laser diodes.
The 1st sight line 51 (direction of the 1st camera) of breach at edge of the 1st interarea 41a side that is used to detect glass plate 41 tilts to end face 41c side with respect to the normal 53 of the interarea 41a at the edge by the 1st interarea 41a side.With respect to inciding glass plate 41 from the 1st interarea 41a and from the extended line 51a of the 1st sight line 51 of the position outgoing that does not have breach of the 2nd interarea 41b, the 1st light source 44 be configured in the 2nd interarea 41b near.That is to say that the 1st light source 44 is configured in the space of being delimited by extended line 51a and the 2nd interarea 41b.
The 2nd sight line 52 (direction of the 2nd camera 43) of breach at edge of the 2nd interarea 41b side that is used to detect glass plate 41 tilts to the 1st interarea 41a side with respect to by the normal 54 except the point at the edge of the 1st interarea 41a.With respect to inciding glass plate 41 from the 1st interarea 41a and from the extended line 52a of the 2nd sight line 52 of the position outgoing that does not have breach of the 2nd interarea 41b, the 2nd light source 45 be configured in the 2nd interarea 41b near.That is to say that the 2nd light source 45 is configured in the space of being delimited by extended line 52a and the 2nd interarea 41b.
As shown in Figure 2, defect detecting device 40 is equipped with: image display device 47 generates and shows and the corresponding image of exporting separately from the 1st camera 42 and the 2nd camera 43 of signal of video signal; Defective discriminating gear 48 based on the image that is generated by image display device 47, differentiates whether there is breach on glass plate 41.In one embodiment, whether defective discriminating gear 48 is differentiated the bright spot that is included in the image and is caused by breach, shows and differentiates the result and inform the staff.
Fig. 3 represents to incide light on the 1st interarea 41a of glass plate 41 from the light path of the 2nd interarea 41b during with incident angle α 1 outgoing with incident angle α 1.
Under the situation of the refractive index of representing glass plate 41 with n, in the inside of glass plate 41, light is advanced with the represented angle (refraction angle α 2) of relational expression sin (α 1)/sin (α 2)=n.The light that arrives the 2nd interarea 41b with the angle identical with incident angle α 1 from the 2nd interarea 41b outgoing.Therefore, emergent light is offset the distance that is directly proportional with the thickness t of glass plate 41 abreast with respect to incident light, advances on the direction identical with incident light.
This side-play amount s represents with following formula.If the optical path length in the glass plate 41 is L, the thickness of glass plate 41 is t.
From t/L=cos (α 2) and
S/L=sin (α 1-α 2) obtains,
s＝t×sin(α1-α2)/cos(α2)
Even it is also passable under the situation that direction is opposite shown in the arrow among direction of light and Fig. 1.That is, the arrow of Fig. 1 can be interpreted as the incident path of light, outgoing path or " sight line of camera " of light.In this manual " incident " to reach " outgoing " be the sight line of saying camera, that is to say as the 1st sight line 51 of the sight line of the 1st camera 42 and as the 2nd sight line 52 of the sight line of the 2nd camera 43.To be called " incident angle of sight line " with respect to the 1st sight line 51 of the normal of the 1st interarea 41a of glass plate 41 and the angle of the 2nd sight line 52, represent (with reference to Fig. 3～Fig. 7) with θ or α.
When the position (the 1st interarea 41a) that arrives glass plate 41 in the sight line (the 1st sight line 51 and the 2nd sight line 52) of camera or this sight line go up from the position (the 2nd interarea 41b) of glass plate 41 outgoing when jagged, change at the shooting angle of the sight line of this position camera.Utilize the variation of this angle, defect detecting device 40 detects breach.
Dotted line 52a shown in Figure 4 incides glass plate 41 and from the extended line of the 2nd sight line 52 of the position outgoing that does not have breach of the 2nd interarea 41b, is also referred to as the sight line 52a that does not have under the breach situation from the 1st interarea 41a.Solid line 52b is the extended line that is subjected to the 2nd sight line 52 of the breach that has at the end face 41c place of the 2nd interarea 41b 62 refractions, is also referred to as the sight line 52b that is subjected to the breach refraction.
Dotted line 51a shown in Figure 5 incides glass plate 41 and from the extended line of the 1st sight line 51 of the 2nd interarea 41b outgoing, is also referred to as the sight line 51a that does not have under the breach situation sometimes from the position that does not have breach of the 1st interarea 41a.Solid line 51b is the prolongation war that is subjected to the 1st sight line 51 of the breach that has at the end face 41c place of the 2nd interarea 41b 61 refractions, is also referred to as the sight line 51b that is subjected to the breach refraction sometimes.
In Fig. 4, during the angle of inclination of the breach 62 that has when the 2nd interarea 41b place that is illustrated in glass plate 41 with φ, the incident angle β 1 of the 2nd sight line 52 by inciding breach 62 in the glass plate 41 becomes β 1=α 2-φ.Because when breach angle of inclination φ increased, its incident angle β 1 reduced, the shooting angle β 2 that is subjected to the sight line 52b of breach 62 refractions also reduces.That is to say that the shooting angle β 2 that is subjected to the sight line 52b of breach 62 refractions becomes littler than there not being the sight line 52a under the breach situation, this sight line 52b is with the angle outgoing than close the 2nd interarea 41b of sight line 52a.
Under the situation of φ＞α 2, become with than the angle outgoing of the extended line 52 of the path (L) of the sight line 52 in the glass plate 41 owing to be subjected to the sight line 52b of breach 62 refraction near the 2nd interarea 41b, thus become than under the situation of φ≤α 2 further near the outgoing of interarea 41b side.
Therefore, as Fig. 1 and shown in Figure 4, in defect detecting device 40, the 2nd light source 45 is configured to than close the 2nd interarea 41b of sight line 52a that does not have under the breach situation, when jagged 62 the time at interarea 41b place, the 2nd sight line 52 is subjected to breach 62 refractions, and the sight line 52b that is subjected to breach 62 refractions sees the 2nd light source 45.See that by the sight line 52b that is subjected to breach 62 refractions the 2nd light source 45, the 2 cameras 43 can capture by the big light of the light intensity of breach 62 (bright light), can detect the breach 62 of the end face 41c of the 2nd interarea 41b.
In addition, in Fig. 5, when the angle of inclination of the breach 61 that has at the 1st interarea 41a place of glass plate 41 of hypothesis was φ, the incident angle γ 1 that incides the 1st sight line 51 on the glass plate 41 in the position of breach 61 became
γ1＝θ-φ
Because when breach angle of inclination φ increases, its incident angle γ 1 reduces, the refraction angle γ 2 that is subjected to the 1st sight line 51 of breach 61 refraction also reduces, and the optical path length (L) by the sight line 51 in the glass plate 41 is than there not being the optical path length (L) under breach 61 situations to extend.That is to say, the sight line 51b that the 1st sight line 51 is subjected to breach 61 refraction from the position of the 2nd interarea 41b outgoing than the outgoing position deviation end face 41c of the 1st sight line 51 under the situation that does not have breach 61, with than the angle outgoing that does not have close the 2nd interarea 41b of sight line 51a under the breach situation.
Have again, be subjected to the angle (refraction angle δ 2) of light (sight line 51b) to represent of breach 61 refractions, shine the atmosphere from the 2nd interarea 41b with following formula.
sin(δ2)/sin(δ1)＝n
N is the refractive index of glass plate 41.
Therefore, as Fig. 1 and shown in Figure 5, in defect detecting device 40, owing to make the 1st light source 44 leave the sight line 51a that does not have under the breach situation, be configured near the 2nd interarea 41b place, so when jagged 61 the time at interarea 41a place, the 1st sight line 51 is subjected to breach 61 refractions, the sight line 51b that is subjected to breach 61 refractions sees the 1st light source 44.See that by the sight line 51b that is subjected to breach 61 refractions the 1st light source 44, the 1 cameras 42 can capture by the big light of the light intensity of breach 61 (bright light), can detect the breach 61 of the end face 41c of the 1st interarea 41a.
Then, with reference to Fig. 6 and Fig. 7, explanation is in defect detecting device 40, when the 1st camera 41 being arranged to the 1st sight line 51 with respect to the angle (angle of sight line 51) and the position that dispose 1st light source 44 of normal with the regulation of angle when end face 41c inclination is oblique of regulation.In one embodiment, the refractive index n of glass plate 41 is 1.52.
The breach of the end face 41c of glass plate 41 has the such surface of inner face of two pieces of shells.Therefore, the direction on breach surface is not constant, consider the area maximum representational.In an example, as shown in Figure 6, breach 61 is positioned at the edge of the 1st interarea 41a side of glass plate 41.The 1st camera 42 is oblique to end face 41c inclination with respect to the normal of the 1st interarea 41a.
In order to make light not enter whole breach 61, as shown in Figure 6, need in glass plate 41, advance from the light that the 2nd interarea 41b side incides glass plate 41 with angle beta through glass plate 41 with having scattering.
At upside and the downside of end face 41c, there be discrete (with reference to Fig. 6) in the degree of grinding (cutting output).Under the situation of the width of the discrete and breach 61 of considering cutting output, width d shown in Figure 6 by rule of thumb be glass plate 41 thickness t about 10.Therefore, angle beta is necessary for 5.71 °.
d＞0.1t
β＞atan(0.1)＝5.71°
As shown in Figure 7, be under 0 ° the situation at breach angle of inclination φ, from angle beta be 5.71 ° as can be known, the incident angle α of sight line 51 is 8.70 °.
α＝1.51×sin(β)＝8.70°
Under the situation of the overwhelming majority, representational breach angle of inclination φ is 0 °～30 °, and special in the majority with about 10 ° situation.
In angle [alpha] is 8.70 °, and breach angle of inclination φ is that angle γ represents with following formula under 10 ° the situation.
γ＝asin(sin(asin(sin(8.7-10)/1.52)+10)×1.52)＝13.98°
Make the incident angle of sight line 51 become under the situation of α in that the 1st camera 42 is set, for the 1st light source 44 is configured to liken to for the extended line of sight line 51 do not have sight line 51a (with reference to Fig. 5) under the breach situation near the 2nd interarea 41b, necessary by rule of thumb
(γ-α)＞2°
From the above, in order to detect breach, preferably the 1st camera 42 and the 1st light source 44 are arranged to satisfy following condition with various breach angle of inclination φ.
(condition 1) 3 °＜α＜30 °
(condition 2) (α+3)＜γ＜(α+20)
That is, the sight line 51 that preferably makes the 1st camera 42 to the oblique angle of end face 41c inclination (the incident angle α of the 1st sight line 51) with respect to normal in 3 °～30 ° scope, the shooting angle γ that makes the 1st light source 44 be configured in sight line 51 satisfies condition on 2 the sight line.
When angle [alpha] during less than 3 °, owing to utilize the upside of end face 41c and the difference d (with reference to Fig. 6) of the cutting output of downside, make sight line 51 pass through end face 41c, thus often can not obtain being enough to detect the light quantity of breach, thereby be undesirable.
When angle [alpha] during,, also be undesirable because sight line 51b often leaves light source 44 greater than 30 °.
In addition, the 2nd camera 43 is arranged to the 2nd sight line 52 with respect to normal to end face 41c the inclination tiltedly angle (angle of sight line 52) of the regulation the during angle of regulation and the position that disposes the 2nd light source, identical with the situation of above-mentioned the 1st camera 42 and the 1st light source 44.That is,, preferably the 2nd camera 43 and the 2nd light source 45 are arranged to satisfy condition 1,2 in order to detect breach with various breach angle of inclination φ.
According to the 1st embodiment, can access following advantage.
(1) the 1st sight line (sight line of the 1st camera 42) 51 of breach at edge of the 1st interarea 41a side that will detect glass plate 41 with respect to the normal slope among the interarea 41a to end face 41c side, make the 1st light source 44 leave the sight line 51a that does not have under the breach situation, be configured near the 2nd interarea 41b place.Therefore, when having breach 61 at the 1st interarea 41a place, the 1st sight line 51 is subjected to breach 61 refractions, and the sight line 51b that is subjected to breach 61 refractions can see the 1st light source 44.Thus, the 1st camera 42 can capture by the big bright light of the light intensity of breach 61.Therefore, can not be subjected to translucent end face 41c to detect the breach 61 of the end face 41c of the 1st interarea 41a with influencing.
(2) the 2nd sight line (sight line of the 2nd camera 43) 52 of breach at edge of the 2nd interarea 41b side that will detect glass plate 41 is with respect to the 1 interarea 41a side of the normal slope to the among the 1st interarea 41a, and the 2nd light source 45 is configured near interarea 41b with respect to the extended line (sight line 52a) from the 2nd sight line 52 of the position outgoing that does not have breach of interarea 41b.Therefore, when having breach 62 at the 2nd interarea 41b place, the 2nd sight line 52 is subjected to breach 62 refractions, and the sight line 52b that is subjected to breach 62 refractions can see the 2nd light source 45.Thus, the 2nd camera 43 can capture by the big bright light of the light intensity of breach 62.Therefore, can not be subjected to translucent end face 41c to detect the breach 62 of the end face 41c of the 2nd interarea 41b with influencing.
(3) according to above-mentioned (1) and (2),, also can not be subjected to translucent end face 41c to detect breach even exist under the situation of breach at any one face of glass plate 41 with influencing.
(4), can detect the breach 61 that exists at the end face 41c place of the 1st interarea 41a side with various breach angle of inclination φ by the 1st camera 42 and the 1st light source 44 are arranged to satisfy condition 1,2.
(5), can detect the breach 62 that exists at the end face 41c place of the 2nd interarea 41b side with various breach angle of inclination φ by the 2nd camera 43 and the 2nd light source 45 are arranged to satisfy condition 1,2.
(6) by the 1st camera 42 and the 1st light source 44 and the 2nd camera 43 and the 2nd light source 45 are arranged to satisfy condition 1,2 separately, the optical system unit of defect detecting device 40 can be constituted compact structure.Thus, prepare a plurality of defect detecting devices 40, with the carrying direction configuration of the optical system unit of these devices along glass plate 41, when detecting the breach of end face 41c by a plurality of defect detecting devices 40, the space that can reduce to be used to dispose each optical system unit.
With reference to Fig. 8 the device and method of the detection defects of glass sheet of the present invention's the 2nd embodiment being described, is that the center describes with the difference with the 1st embodiment.
The optical system of the defect detecting device 40A of the 2nd embodiment is equipped with: as a camera 70 of image unit, as 2 reflective mirrors 73,74 of reflecting member, as the 1st light source 44 of the 1st lighting unit, as the 2nd light source 45 of the 2nd lighting unit.
Camera 70 is CCD cameras same with the camera 42,43 of the 1st embodiment, is configured in the 1st interarea 41a side of glass plate 41.2 reflective mirrors 73,74 are configured in the 1st interarea 41a side of glass plate 41, and 2 light sources 44,45 are configured in the 2nd interarea 41b side.
Reflective mirror 73,74 is configured in the visual field of camera 70.Reflective mirror 73 forms the 1st sight line 71 of the breach 61 of the 1st interarea 41a that detects glass plate 41, and reflective mirror 74 forms the 2nd sight line 72 of the breach 62 that detects the 2nd interarea 41b.
Camera 70 and 2 reflective mirrors 73,74 are configured in the 1st interarea 41a side of glass plate 41, and 2 light sources 44,45 are configured in the 2nd interarea 41b side.
Here, the 1st sight line 71 is equivalent to the 1st sight line 51, the 2 sight lines 72 among Fig. 1 and is equivalent to the 2nd sight line 52 among this figure.In addition, above-mentioned sight line 51a, sight line 51b, sight line 52a and the sight line 52b with shown in Figure 1 is suitable respectively for sight line 71a, sight line 71b, sight line 72a and sight line 72b.
According to the 2nd embodiment, except the advantage of the 1st embodiment, can also obtain following advantage.
(7) even exist under the situation of breach, can not be subjected to translucent end face 41c to detect breach by enough cameras 70 in any one side of glass plate 41 with influencing yet.Therefore, can reduce the manufacturing cost of every defect detecting device 40A.
(8) utilize camera 70 and 2 reflective mirrors 73,74 to be configured in the 1st interarea 41a side of glass plate 41,2 light sources 44,45 are configured in the structure of the 2nd interarea 41b side, not glass plate 41 is configured by the carrying direction restriction ground of glass plate 41.
With reference to Fig. 9 the 3rd embodiment of the present invention is described.
The optical system of defect detecting device 40B shown in Figure 9 is equipped with: as a camera 80 of image unit, as 2 reflective mirrors 83,84 of reflecting member, as the 1st light source 44 of the 1st lighting unit, as the 2nd light source 45 of the 2nd lighting unit.
The 1st sight line 81 and the 2nd sight line 82 are equivalent to the 1st sight line 51 and the 2nd sight line 52 among Fig. 1 respectively.In addition, sight line 51a, sight line 51b, sight line 52a and the sight line 52b with shown in Figure 1 is suitable respectively for sight line 81a, sight line 81b, sight line 82a and sight line 82b.
According to the 3rd embodiment, except the advantage of the 1st embodiment, can also obtain following advantage.
(9) according to and the same reason of advantage (7), can reduce the manufacturing cost of every defect detecting device 40B.
(10) camera 80 is configured in the side of the end face 41c of glass plate 41, and reflective mirror 83 and the 2nd light source 45 are configured in the 1st interarea 41a side of glass plate 41, and reflective mirror 84 and the 1st light source 44 are configured in the 2nd interarea 41b side.By glass plate 41 is moved on the direction vertical with the paper of Fig. 9 on one side, Yi Bian check end face 41c, defect detecting device 40B is once to check just to investigate at end face 41c place whether have breach.
Each embodiment also can carry out following change.
Method of the present invention and device are not limited to the glass substrate that disk is used, and also can be applied to check the breach of the glass plate with smooth interarea that is parallel to each other.
Method of the present invention and device can be applied to check the glazing plate as automotive glass plate and buildings, have the breach of glass plate of the interarea of the bending that is parallel to each other.
The electrical structure of defect detecting device of the present invention is not limited to the example of Fig. 2.Defect detecting device for example also can differentiate whether have breach based on the output signal from the 1st camera 42 and the 2nd camera 43, shows its differentiation result or informs the staff with sound.
Claims (20)
1. method, be in glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detection is characterized in that in the above-mentioned the 1st and the 2nd edge method jaggy whether:
Possess:
Preparation has the 1st image unit of the 1st sight line of the breach that detects above-mentioned the 1st edge, has the 2nd image unit of the 2nd sight line of the breach that detects above-mentioned the 2nd edge, the operation of the 1st and the 2nd lighting unit;
Dispose above-mentioned the 1st image unit, make above-mentioned the 1st sight line with respect to the operation of the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt;
With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and not having the extended line of above-mentioned sight line of the position outgoing of breach from the 2nd interarea of above-mentioned glass plate, above-mentioned the 1st lighting unit is configured near the operation of above-mentioned the 2nd interarea;
Dispose above-mentioned the 2nd image unit, make above-mentioned the 2nd sight line with respect to the operation of above-mentioned normal towards above-mentioned the 1st interarea inclination; And
With respect to extended line, above-mentioned the 2nd lighting unit is configured near the operation of above-mentioned the 2nd interarea from above-mentioned the 2nd sight line of the position outgoing that does not have breach of above-mentioned the 2nd interarea.
2. the method for claim 1 is characterized in that:
It is 3 °～30 ° that the operation that disposes above-mentioned the 1st image unit comprises the angle initialization between above-mentioned the 1st sight line and the above-mentioned normal,
It is 3 °～30 ° that the operation that disposes above-mentioned the 2nd image unit comprises the angle initialization between above-mentioned the 2nd sight line and the above-mentioned normal.
3. the method for claim 1 is characterized in that:
The operation that disposes above-mentioned the 1st image unit, above-mentioned the 2nd image unit, above-mentioned the 1st lighting unit and above-mentioned the 2nd lighting unit comprises:
Dispose above-mentioned the 1st image unit, above-mentioned the 2nd image unit, above-mentioned the 1st lighting unit and above-mentioned the 2nd lighting unit, make when representing separately the incident angle of the above-mentioned the 1st and the 2nd sight line with respect to above-mentioned the 1st interarea with α, when representing separately shooting angle from the above-mentioned the 1st and the 2nd sight line of above-mentioned the 2nd interarea outgoing, satisfy following relation with γ
3°＜α＜30°
(α+3)＜γ＜(α+20)。
4. device, be in glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detection is characterized in that at the above-mentioned the 1st and the 2nd edge device jaggy whether:
Be equipped with:
The 1st image unit is configured in the 1st interarea side of above-mentioned glass plate, has the 1st sight line of the breach that detects above-mentioned the 1st edge;
The 2nd image unit is configured in the 1st interarea side of above-mentioned glass plate, has the 2nd sight line of the breach that detects above-mentioned the 2nd edge;
The 1st lighting unit is configured in the 2nd interarea side of above-mentioned glass plate; And
The 2nd lighting unit is configured in the 2nd interarea side of above-mentioned glass plate,
Above-mentioned the 1st sight line with respect to the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt,
With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of above-mentioned the 2nd interarea, above-mentioned the 1st lighting unit be configured in above-mentioned the 2nd interarea near,
Above-mentioned the 2nd sight line tilts towards above-mentioned the 1st interarea with respect to above-mentioned normal,
With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of above-mentioned the 2nd interarea, above-mentioned the 2nd lighting unit be configured in above-mentioned the 2nd interarea near.
5. device as claimed in claim 4 is characterized in that:
Above-mentioned the 1st sight line is with respect to the scope medium dip of above-mentioned normal at 3 °～30 °, and above-mentioned the 2nd sight line is with respect to the scope medium dip of above-mentioned normal at 3 °～30 °.
6. device as claimed in claim 5 is characterized in that:
Dispose the above-mentioned the 1st and the 2nd image unit and the 1st and the 2nd lighting unit, make when representing separately the incident angle of the above-mentioned the 1st and the 2nd sight line with respect to above-mentioned the 1st interarea with α, when representing separately shooting angle from the above-mentioned the 1st and the 2nd sight line of above-mentioned the 2nd interarea outgoing, satisfy following relation with γ
3°＜α＜30°
(α+3)＜γ＜(α+20)。
7. method, be in glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detection is characterized in that in the above-mentioned the 1st and the 2nd edge method jaggy whether:
Possess:
Prepare the operation of 1 image unit, 2 reflecting members, the 1st lighting unit, the 2nd lighting unit;
Above-mentioned 2 reflecting members are configured in the visual field of above-mentioned image unit, make above-mentioned image unit have the 1st sight line of the breach that detects above-mentioned the 1st edge and the operation of the 2nd sight line of the breach at the edge of the 2nd interarea side that detects above-mentioned glass plate;
Dispose above-mentioned the 1st image unit, make above-mentioned the 1st sight line with respect to the operation of the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt;
With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and, above-mentioned the 1st lighting unit being configured near the operation of above-mentioned the 2nd interarea from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate;
Dispose above-mentioned the 1st image unit, make above-mentioned the 2nd sight line with respect to the operation of above-mentioned normal towards above-mentioned the 1st interarea inclination; And
With respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and, above-mentioned the 2nd lighting unit being configured near the operation of above-mentioned the 2nd interarea from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate.
8. device, be in glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detection is characterized in that at the above-mentioned the 1st and the 2nd edge device jaggy whether:
Be equipped with:
1 image unit;
2 reflecting members, be to be configured in the visual field of above-mentioned image unit, make above-mentioned image unit have to detect 2 reflecting members of the 1st sight line and the 2nd sight line of the breach that detects above-mentioned the 2nd edge of breach at the 1st edge of above-mentioned glass plate, the above-mentioned the 1st and the 2nd sight line tilts with respect to above-mentioned the 1st interarea;
The 1st lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near; And
The 2nd lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near.
9. device as claimed in claim 8 is characterized in that:
Above-mentioned image unit and above-mentioned 2 reflecting members are configured in the 1st interarea side of above-mentioned glass plate, and above-mentioned the 1st lighting unit and the 2nd lighting unit are configured in above-mentioned the 2nd interarea side,
Above-mentioned 2 reflecting members are by above-mentioned the 1st sight line is constituted towards the 2nd reflecting member that above-mentioned the 1st interarea tilts with respect to above-mentioned normal with making above-mentioned the 2nd sight line with respect to the 1st reflecting member of the normal in above-mentioned the 1st interarea towards above-mentioned edge tilt.
10. device, be in glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detection is characterized in that at the above-mentioned the 1st and the 2nd edge device jaggy whether:
Be equipped with:
1 image unit;
2 reflecting members, be to be configured in the visual field of above-mentioned image unit, make above-mentioned image unit have 2 reflecting members of the 1st sight line with the 2nd sight line of the breach that detects above-mentioned the 2nd edge of the breach that detects above-mentioned the 1st edge, the above-mentioned the 1st and the 2nd sight line tilts with respect to above-mentioned the 1st interarea;
The 1st lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 1st interarea and from the extended line of above-mentioned the 1st sight line of the position outgoing that does not have breach of the 2nd interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near; And
The 2nd lighting unit, with respect to inciding above-mentioned glass plate from above-mentioned the 2nd interarea and from the extended line of above-mentioned the 2nd sight line of the position outgoing that does not have breach of the 1st interarea of above-mentioned glass plate, be configured in above-mentioned the 2nd interarea near.
11. device as claimed in claim 10 is characterized in that:
The above-mentioned end face of above-mentioned image unit and above-mentioned glass plate is opposed,
Above-mentioned 2 reflecting members by be configured in above-mentioned the 1st interarea side, make above-mentioned the 1st sight line with respect to the 1st reflecting member of the normal slope in above-mentioned the 1st interarea be configured in above-mentioned the 2nd interarea side, above-mentioned the 2nd sight line constituted with respect to the 2nd reflecting member of above-mentioned normal slope
Above-mentioned the 1st lighting unit is configured in above-mentioned the 2nd interarea side,
Above-mentioned the 2nd lighting unit is configured in above-mentioned the 1st interarea side.
12., it is characterized in that as claim 1 or 7 described methods:
The operation that disposes above-mentioned the 1st lighting unit comprises above-mentioned the 1st lighting unit is configured in the space of being delimited by the extended line and above-mentioned the 2nd interarea of above-mentioned the 1st sight line,
The operation that disposes above-mentioned the 2nd lighting unit comprises above-mentioned the 2nd lighting unit is configured in the space of being delimited by the extended line and above-mentioned the 2nd interarea of above-mentioned the 2nd sight line.
13. any one the described device as in the claim 4,8,10 is characterized in that:
Above-mentioned the 1st lighting unit is configured in the space of being delimited by the extended line of above-mentioned the 1st sight line and above-mentioned the 2nd interarea,
Above-mentioned the 2nd lighting unit is configured in the space of being delimited by the extended line of above-mentioned the 2nd sight line and above-mentioned the 2nd interarea.
14. device, be in glass plate with the 1st edge between the end face between the 1st interarea, the 2nd interarea, above-mentioned the 1st interarea and above-mentioned the 2nd interarea, above-mentioned the 1st interarea and the above-mentioned end face and the 2nd edge between above-mentioned the 2nd interarea and the above-mentioned end face, detection is characterized in that at the above-mentioned the 1st and the 2nd edge device jaggy whether:
Be equipped with:
The 1st image unit is taken above-mentioned the 1st edge of above-mentioned glass plate obliquely;
The 2nd image unit is taken above-mentioned the 2nd edge of above-mentioned glass plate obliquely;
The 1st lighting unit is the 1st a luminous lighting unit, only is configured in above-mentioned the 1st edge when jagged, arrives above-mentioned the 1st image unit from the light of above-mentioned the 1st lighting unit by above-mentioned glass plate;
The 2nd lighting unit is the 2nd a luminous lighting unit, only is configured in above-mentioned the 2nd edge when jagged, arrives above-mentioned the 2nd image unit from the light of above-mentioned the 2nd lighting unit by above-mentioned glass plate; And
Whether discriminating gear based on the image of being taken by the above-mentioned the 1st and the 2nd image unit, is differentiated jagged in the above-mentioned the 1st and the 2nd edge.
15. device as claimed in claim 14 is characterized in that:
Above-mentioned the 1st image unit is configured in above-mentioned the 1st interarea side of above-mentioned glass plate, takes above-mentioned the 1st edge obliquely,
Above-mentioned the 2nd image unit is configured in above-mentioned the 1st interarea side of above-mentioned glass plate, tiltedly takes above-mentioned the 2nd edge from above-mentioned the 1st interarea inclination.
16. device as claimed in claim 15 is characterized in that:
The the above-mentioned the 1st and the 2nd image unit with respect to the normal of above-mentioned glass plate symmetrically with the angle tilt of regulation.
17. device as claimed in claim 15 is characterized in that:
The the above-mentioned the 1st and the 2nd lighting unit is configured in above-mentioned the 2nd interarea side of above-mentioned glass plate.
18. device as claimed in claim 14 is characterized in that:
Only in above-mentioned the 1st edge when jagged, light from above-mentioned the 1st lighting unit is subjected to above-mentioned breach refraction, caught by above-mentioned the 1st image unit, only in above-mentioned the 2nd edge when jagged, light from above-mentioned the 2nd lighting unit is subjected to above-mentioned breach refraction, is caught by above-mentioned the 2nd image unit.
19. device as claimed in claim 14 is characterized in that:
When above-mentioned the 1st edge does not have breach, from the light of above-mentioned the 1st lighting unit by above-mentioned glass plate, near above-mentioned the 1st image unit;
When above-mentioned the 2nd edge does not have breach, from the light of above-mentioned the 2nd lighting unit by above-mentioned glass plate, near above-mentioned the 2nd image unit.
20. device as claimed in claim 14 is characterized in that:
Above-mentioned end face is the devitrified glass shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003392786A JP4176622B2 (en) | 2003-11-21 | 2003-11-21 | Defect detection method and defect detection apparatus for sheet glass |
| JP392786/2003 | 2003-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1849508A true CN1849508A (en) | 2006-10-18 |
Family
ID=34616465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200480024850XA Pending CN1849508A (en) | 2003-11-21 | 2004-11-16 | Method and device for detecting defects of glass sheet |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4176622B2 (en) |
| KR (1) | KR20060096984A (en) |
| CN (1) | CN1849508A (en) |
| TW (1) | TW200525142A (en) |
| WO (1) | WO2005050184A1 (en) |
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| CN102192972A (en) * | 2010-02-26 | 2011-09-21 | 旭硝子株式会社 | Method and device for inspecting crack of rectangular plate object |
| CN101484775B (en) * | 2006-07-04 | 2012-11-28 | 株式会社尼康 | Surface inspection device |
| CN103175569A (en) * | 2011-12-21 | 2013-06-26 | 北京兆维电子(集团)有限责任公司 | Acquiring device for single-light-source dual cameras |
| CN105143862A (en) * | 2013-03-19 | 2015-12-09 | 亨内克系统有限责任公司 | Inspection system |
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| CN107843604A (en) * | 2017-12-19 | 2018-03-27 | 苏州精濑光电有限公司 | A kind of device and detection method for being used to detect double layer substrate edge defect |
| CN109855672A (en) * | 2019-04-25 | 2019-06-07 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of band chamfering radian glass plate automatic detection device |
| CN109916910A (en) * | 2019-03-27 | 2019-06-21 | 中建材凯盛机器人（上海）有限公司 | Photovoltaic glass edge fault detection system and corresponding method |
| CN112710675A (en) * | 2019-12-25 | 2021-04-27 | 上野精机株式会社 | Electronic component handling apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100791277B1 (en) * | 2006-09-12 | 2008-01-04 | 주식회사 케이엔제이 | Flat panel disply panel inspection device |
| JP2007147433A (en) * | 2005-11-28 | 2007-06-14 | Nano Scope Ltd | Flaw inspection method of ceramic plate and flaw inspection device therefor |
| KR101318246B1 (en) * | 2007-02-21 | 2013-10-16 | 엘지디스플레이 주식회사 | Apparatus and method of discriminating a defect of liquid crystal display device |
| JPWO2012153718A1 (en) * | 2011-05-12 | 2014-07-31 | コニカミノルタ株式会社 | Glass sheet end face inspection method and glass sheet end face inspection apparatus |
| TWI557407B (en) * | 2014-03-05 | 2016-11-11 | 晶元光電股份有限公司 | Method of chip inspection |
| KR102580389B1 (en) * | 2018-02-13 | 2023-09-19 | 코닝 인코포레이티드 | Apparatus and method for inspecting a glass sheet |
| CN110596138A (en) * | 2019-08-14 | 2019-12-20 | 深圳格兰达智能装备股份有限公司 | IC material strip visual detection and ink dot marking equipment |
| TWI805931B (en) * | 2020-06-23 | 2023-06-21 | 方碼科技有限公司 | Object code reading method and reading device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3013903B2 (en) * | 1991-01-31 | 2000-02-28 | セントラル硝子株式会社 | Defect detection device for sheet glass |
| JP3141974B2 (en) * | 1993-12-24 | 2001-03-07 | 日立電子エンジニアリング株式会社 | Peripheral defect detecting apparatus and peripheral defect detecting method for glass disk |
| JP2738300B2 (en) * | 1994-06-20 | 1998-04-08 | 白柳式撰果機株式会社 | Indirect illumination type multi-sided photographing device used for camera sorting machine for bulk fruits and vegetables |
| JP2001208702A (en) * | 2000-01-31 | 2001-08-03 | Nippon Sheet Glass Co Ltd | Method and apparatus for inspecting defects |
| JP2003098122A (en) * | 2001-09-21 | 2003-04-03 | Toshiba Ceramics Co Ltd | Visual examination device for glass board |
-
2003
- 2003-11-21 JP JP2003392786A patent/JP4176622B2/en not_active Expired - Lifetime
-
2004
- 2004-11-16 KR KR1020067003605A patent/KR20060096984A/en not_active Application Discontinuation
- 2004-11-16 WO PCT/JP2004/017022 patent/WO2005050184A1/en active Application Filing
- 2004-11-16 CN CNA200480024850XA patent/CN1849508A/en active Pending
- 2004-11-17 TW TW093135241A patent/TW200525142A/en unknown
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| CN102192972B (en) * | 2010-02-26 | 2015-01-28 | 旭硝子株式会社 | Method and device for inspecting crack of rectangular plate object |
| CN102192972A (en) * | 2010-02-26 | 2011-09-21 | 旭硝子株式会社 | Method and device for inspecting crack of rectangular plate object |
| CN103175569A (en) * | 2011-12-21 | 2013-06-26 | 北京兆维电子(集团)有限责任公司 | Acquiring device for single-light-source dual cameras |
| CN103175569B (en) * | 2011-12-21 | 2015-07-15 | 北京兆维电子(集团)有限责任公司 | Acquiring device for single-light-source dual cameras |
| CN105143862B (en) * | 2013-03-19 | 2019-07-09 | 亨内克系统有限责任公司 | Detection system |
| CN105143862A (en) * | 2013-03-19 | 2015-12-09 | 亨内克系统有限责任公司 | Inspection system |
| CN107131832A (en) * | 2016-02-29 | 2017-09-05 | 深圳市升瑞科仪光电有限公司 | LCD glass edgings effect detection method and device |
| CN107843604A (en) * | 2017-12-19 | 2018-03-27 | 苏州精濑光电有限公司 | A kind of device and detection method for being used to detect double layer substrate edge defect |
| CN107843604B (en) * | 2017-12-19 | 2024-04-05 | 苏州精濑光电有限公司 | Device and method for detecting edge defects of double-layer substrate |
| CN109916910A (en) * | 2019-03-27 | 2019-06-21 | 中建材凯盛机器人（上海）有限公司 | Photovoltaic glass edge fault detection system and corresponding method |
| CN109855672A (en) * | 2019-04-25 | 2019-06-07 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of band chamfering radian glass plate automatic detection device |
| CN112710675A (en) * | 2019-12-25 | 2021-04-27 | 上野精机株式会社 | Electronic component handling apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005156254A (en) | 2005-06-16 |
| TW200525142A (en) | 2005-08-01 |
| KR20060096984A (en) | 2006-09-13 |
| WO2005050184A1 (en) | 2005-06-02 |
| JP4176622B2 (en) | 2008-11-05 |
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