CN205449356U - Glass surface stress appearance - Google Patents
Glass surface stress appearance Download PDFInfo
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- CN205449356U CN205449356U CN201521128724.0U CN201521128724U CN205449356U CN 205449356 U CN205449356 U CN 205449356U CN 201521128724 U CN201521128724 U CN 201521128724U CN 205449356 U CN205449356 U CN 205449356U
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- 239000011521 glass Substances 0.000 title claims abstract description 80
- 238000001514 detection method Methods 0.000 claims abstract description 119
- 238000012800 visualization Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract 4
- 238000010030 laminating Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 239000005357 flat glass Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000005391 art glass Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
Abstract
According to the utility model provides a glass surface stress appearance, it includes: illumination element, illumination element includes the light source, detect the prism, detect the prism and have the surface laminating that is used for and is detected glass in order to carry out the measuring surface that detects, follow the detection light that illumination element incident detected the prism is in laminating department between measuring surface and quilt detection glass's the surface is by the total reflection, and imaging Unit, imaging Unit arranges into the receipt and comes from detect the emergent light of prism and form detection images, wherein, illumination element still includes the condensing lens, and this condensing lens is formed and arranges as and to come from the point focusing of light source is arrived detect the prism near last or its of measuring surface. Glass surface stress appearance goes up or near its to the measuring surface who detects the prism through the point focusing that sets up the condensing lens and will come from the light source, helps like this improving detecting the precision.
Description
Technical field
It relates to a kind of optical detection apparatus, in particular it relates to a kind of glass surface stress ga(u)ge.
Background technology
Glass plate is material the most common in daily life and commercial production.In order to weigh glass sheet quality, guarantee the safety that glass plate uses, it is often necessary to the stress in glass plate is measured.In order to detect glass plate stress, specify in the standards such as GB, use birefringent mode to measure the surface stress of glass, to characterize the stress level of inside glass.At present, in actually used, the mode measuring glass surface stress mainly has two kinds: differential surface refraction process DSR (DifferentialSurfaceRefractometry) and sweep angle Pianguan County, surface method GASP (GrazingAngleSurfacePlarimetry).Wherein DSR mode due to use optical element few, the price of detecting instrument is relatively low, and is widely used by various testing agencies.
But, the glass surface stress ga(u)ge of existing DSR mode is not without defect.Specifically, Fig. 1 a and Fig. 1 b shows the partial schematic diagram of optical detection of glass surface stress ga(u)ge of existing DSR mode.As seen in figure la and lb, from just dissipating of sending of light source 1, this light dissipated is irradiated to detect on the detection surface 2a of prism 2, and the interface between detection prism and glass surface is reflected.In the case of detection bend glass 3 (such as the windshield of automobile), as shown in Figure 1a, the incident ray at bend glass and prism contact point 3a not necessarily comprises the light with the angle of total reflection, and the error therefore detected is bigger.Flat glass 4 is detected, as shown in Figure 1 b, there is the problem that the area requirement of refractive index to detected glass is narrow.If it addition, above-mentioned existing glass surface stress ga(u)ge has cut or stain, cut or stain very big on the impact of testing result on detection surface 2a, causing bigger detection error.
Utility model content
In view of above-mentioned deficiency present in prior art, it is made that the invention.
According to this utility model, it is provided that a kind of glass surface stress ga(u)ge, comprising: lighting unit, lighting unit includes light source；Detection prism, detection prism has for being fitted to carry out the detection surface detected with the surface of detected glass, is totally reflected from the detection light joint place between described detection surface and the surface of detected glass of described lighting unit incidence detection prism；And image-generating unit, image-generating unit is arranged to reception and from the emergent light of described detection prism and forms detection image, wherein, described lighting unit also includes condenser lens, and this condenser lens is formed and is arranged as to be focused on by the light from described light source on the described detection surface of described detection prism or near it.
Preferably, described light source is White LED light source.
Preferably, described lighting unit also includes at least one in diaphragm and optical filter between described light source and described condenser lens.
According to some embodiments, described lighting unit can also include the light from described condenser lens is guided the reflecting mirror to described detection prism.According to other embodiments, described detection prism can include entrance detection prism is detected the reflecting surface that light reflects and is channeled to described detection surface.
The focal length of described condenser lens is preferably no greater than 25mm.
Preferably, described glass surface stress ga(u)ge also includes that shading outer housing, described lighting unit, detection prism and image-generating unit are contained in this shading outer housing, and described shading outer housing is formed with detection hole, and the detection surface of described detection prism is stretched out from described detection hole.It is highly preferred that described detection hole is positioned at described shading shield base, and between described shading outer housing and described detection prism, described detection hole is provided with shading sealing member.The distance that the detection surface of described detection prism is stretched out from described detection hole is the most adjustable.
Preferably, described image-generating unit includes the first reflecting mirror, battery of lens, the second reflecting mirror, analyser and the photo-sensitive cell set gradually along light path, and can be provided with, through described shading outer housing, the regulating part that the position to described first reflecting mirror is adjusted.
Preferably, described glass surface stress ga(u)ge also includes: be arranged on the data processing unit in described shading outer housing, and described photo-sensitive cell electrically connects with data processing unit；Be formed on the surface of described shading outer housing or be supported on the display unit on described shading outer housing, this display unit is electrically connected to described data processing unit, is used for showing described detection image.
Preferably, described image-generating unit also includes the 3rd reflecting mirror and visualization unit, 3rd reflecting mirror is arranged between described second reflecting mirror and analyser, it can rotate between the first position and the second position, in described primary importance, light from the second reflecting mirror is guided to described analyser by the 3rd reflecting mirror, and in the described second position, light from the second reflecting mirror is guided to described visualization unit by the 3rd reflecting mirror, and described visualization unit exposes from described shading outer housing.
According to glass surface stress ga(u)ge of the present utility model by arrange condenser lens the light from light source is focused on detection prism detection surface on or its near, be so favorably improved accuracy of detection.
Accompanying drawing explanation
By reading the detailed description being made non-limiting example made with reference to the following drawings, other features, purpose and advantage will become more apparent upon:
Fig. 1 a is partial schematic diagram during prior art glass surface stress ga(u)ge detection bend glass；
Fig. 1 b is partial schematic diagram during prior art glass surface stress ga(u)ge detection flat glass；
Fig. 2 a is that the glass surface stress ga(u)ge according to this utility model embodiment is for detecting the partial schematic diagram of bend glass；
Fig. 2 b is that the glass surface stress ga(u)ge according to this utility model embodiment is for detecting the partial schematic diagram of flat glass；
Fig. 3 is the structural representation of the glass surface stress ga(u)ge according to this utility model first embodiment；
Fig. 4 is the structural representation of the glass surface stress ga(u)ge of the modification according to first embodiment；
Fig. 5 is the structural representation of the glass surface stress ga(u)ge of another modification according to first embodiment；
Fig. 6 is the structural representation of the glass surface stress ga(u)ge according to this utility model the second embodiment.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that specific embodiment described herein is used only for explaining that related invention is created, rather than the restriction to it.
Partial schematic diagram when Fig. 2 a and Fig. 2 b respectively illustrates the glass surface stress ga(u)ge according to this utility model embodiment for detecting bend glass and flat glass.As it can be seen, add the condenser lens 12 for convergent beam after light source 11 according to glass surface stress ga(u)ge of the present utility model.The light that light source 11 the sends convergence by condenser lens 12, the most again by the reflection of reflecting mirror 13, incident detection prism 20.Light focuses on the detection surface 20a of detection prism 20 or near it.To be placed on glass according to glass surface stress ga(u)ge of the present utility model so that the detection surface 20a of detection prism 20 fits with glass surface.Suitable index-coupling medium, such as matching fluid or gel can be imposed between detection prism 20 and glass surface.Light from light source is focused to the joint place contact point 30a of bend glass 30 (such as with) by condenser lens so that light joint place between described detection surface and the surface of detected glass is totally reflected.The light of this generation total reflection carries the information of the glass birefringence ability that glass surface stress causes, and can be detected by follow-up image-generating unit.
According to this utility model, glass surface stress ga(u)ge utilizes condenser lens by from light source, usually the light of divergent beams converge to and detect on the detection surface of prism or near it.When detecting bend glass, light beam is made to focus on detection surface and glass surface joint place.So can ensure that the light containing the angle of incidence having and meeting total reflection condition as much as possible in the light of irradiation joint place, improve the accuracy of stress mornitoring result.When detecting flat glass, can better adapt to, according to glass surface stress ga(u)ge of the present utility model, the situation that variations in refractive index that glass surface stress causes is big.It addition, this contributes to reducing the cut on the detection surface of detection prism or the stain impact on testing result.
Introduce embodiment of the present utility model in detail below.
Fig. 3 is the structural representation of the glass surface stress ga(u)ge according to this utility model first embodiment.The glass surface stress ga(u)ge of diagram includes lighting unit, detection prism 200 and image-generating unit.
As it is shown on figure 3, can also include outer housing 400 according to glass surface stress ga(u)ge of the present utility model, and this outer housing is preferably shading outer housing.Shading outer housing 400 accommodates above-mentioned lighting unit, detection prism and image-generating unit, and it covers from outside veiling glare, defines the profile of stress ga(u)ge.
As it is shown on figure 3, lighting unit includes light source 101, diaphragm 102, colour filter 103, condenser lens 104 and the reflecting mirror 105 set gradually.
For the energy-conservation and convenient consideration of supply voltage, the light source 101 that lighting unit uses is preferably LED light source.In the present embodiment, it is provided that diaphragm 102, it is used for adjusting light intensity.If the light intensity of light source 101 is suitable, diaphragm can not be used.Colour filter 103 can be such as interferometric filter, and it purifies for the light launching light source, to improve accuracy of detection.If the monochromaticity of light source 101 meets the requirement of accuracy of detection, filter lens 103 can not be used.In the present embodiment, light source 101 is for example with LED white light source, and is adjusted by diaphragm 102 and filter lens 103 and improve the characteristic for the light detected, so that it is guaranteed that accuracy of detection.
Condenser lens 104 has been discussed as described above with Fig. 2 a and 2b, and it is formed and is arranged as to be focused on by the light from described light source on the detection surface 200a of detection prism 200 or near it.Condenser lens 104 can be such as made up of convex lens.The focal length of described condenser lens and object distance and image distance are calculated by light path so that light enters prism post-concentration on the detection surface of detection prism or near it so that optical detection face is less.In order to reduce the volume of whole equipment, the focal length of condenser lens is preferably no greater than 25 millimeters.
In light path before light enters detection prism 200, reflecting mirror 105 can be optionally set, be used for folding light path, thus reduce the overall volume of stress ga(u)ge.This utility model is not limited to use or do not use this reflecting mirror 105.
Detection prism 200 can be triangular prism, the plane of incidence be the rectangular prism etc. of circular arc type.Detection prism 200 shown in Fig. 3 is square prism.Detection prism 200 has the detection surface 200a for fitting with the surface of detected glass.By the light of light source outgoing is filtered, the light of incident detection prism can be made to become the light that monochromaticity is good, decrease detection light light source light spectrum width adverse effect to measuring after glass-prism boundary outgoing.The angle of incidence of light source is determined by scientific algorithm, coordinates the use of the detection prism of relevant parameter, it is to avoid operator select in multiple steps and affect certainty of measurement.
Can offer detection hole 401 on shading outer housing 400, the detection surface 200a of detection prism stretches out from detection hole 401.Preferably, the distance that the detection surface 200a of detection prism stretches out from detection hole 401 is adjustable.Such as, shading outer housing 400 is outside can have the adjusting means being connected to detect prism 200, stretches out the distance of shading outer housing in order to regulate detection prism.Furthermore it is preferred that, detection hole 401 is positioned at shading shield base, and between shading outer housing 400 and detection prism 200, detection hole 401 is provided with shading sealing member (not shown), to avoid veiling glare to enter detection prism via this detection hole 401.
Image-generating unit includes battery of lens 301, analyser 302 and the photo-sensitive cell 303 set gradually according to light path.
Preferably, image-generating unit can also include at least two reflecting mirror.Such as, as it is shown in figure 1, image-generating unit includes the first reflecting mirror 300a, the second reflecting mirror 300b and the 3rd reflecting mirror 300c.First reflecting mirror 300a is placed between detection prism 200 and battery of lens 301, and closes on detection prism 200, will enter battery of lens 301 from the luminous reflectance of detection prism outgoing.The reflecting surface of the second reflecting mirror 300b and the 3rd reflecting mirror 300c is oppositely arranged, and be placed between battery of lens 301 and analyser 302, in order to the light directing analyser 302 that will be focused on by battery of lens 301, again via injecting photo-sensitive cell 303 imaging of such as CCD/CMOS/PMT etc. after analyser, photo-sensitive cell presents the step difference image of reaction glass surface stress.Preferably, the position of the first illuminator 300a closing on detection prism 200 can be adjusted via regulating part 300d by user, thus regulating the angle of the light entering battery of lens 301 so that the light of critical angle is irradiated on photo-sensitive cell after battery of lens, presents high-quality step difference image.Regulating part 300d is preferably screw, to improve the precision of ease for use and regulation.
Analyser 302 such as can use the splicing of two panels mutually perpendicular polaroid or use one or more polarization splitting prism to realize.
Step difference image is processed by the data processing unit (not shown) electrically connected with photo-sensitive cell 303, thus obtains the surface stress of glass.Data processing unit can realize by having the general purpose computer of data processing software, or uses special small-sized data processor to realize, such as, single-chip microcomputer, FPGA, CPLD etc..Small-sized data processor can be integrated in photo-sensitive cell 303.
Now in order to intuitively allow user understand testing result, glass surface stress ga(u)ge can include the display unit being formed on shading shroud surface or protruding from this surface.Display unit can include entity or the virtual keys such as the graph image interface showing testing result, and the small-sized data processor controlling to be built in detection device such as initializes, resets, calibrates, fault detect.Display unit can be to touch display screen.
Selectable, the 3rd reflecting mirror 300c can omit, or the 3rd reflecting mirror 300c is rotatable reflecting mirror.
Fig. 4 shows the glass surface stress ga(u)ge of a modification according to first embodiment, and wherein the 3rd reflecting mirror is set to rotatable reflecting mirror.As shown in Figure 4, image-generating unit still further comprises visualization unit 500.In this modification, the 3rd reflecting mirror 300c is arranged between the second reflecting mirror 300b and analyser 302, and visualization unit 500 and photosensitive unit 303 are conjugated relative to the 3rd reflecting mirror 300c.3rd reflecting mirror 300c can rotate between the first position and the second position.In primary importance, the light from the second reflecting mirror 300b is guided to analyser 302, makes photo-sensitive cell 303 carry out image record and realize electronic surveying, be similar to the working method of DSLR camera by the 3rd reflecting mirror 300c.In the second position, the light from the second reflecting mirror 300b is guided to visualization unit 500 by the 3rd reflecting mirror 300c, such that it is able to visualization unit 45 observation artificial result of calculation.Visualization unit 500 exposes from shading outer housing 400.
Fig. 5 shows the glass surface stress ga(u)ge of another modification according to first embodiment, it is essentially identical with the glass surface stress ga(u)ge according to first embodiment, difference is, that include alternatively in first embodiment, be formed on shading shroud surface or protrude from the discrete display unit 600 that the display unit on this surface is supported on shading outer housing and substituted.Specifically, as it is shown in figure 5, display unit 600 is supported on shading outer housing 400 by support 601, and electrically connect with said data processing unit.Display unit 600 can include entity or the virtual keys such as the graph image interface showing testing result, and the small-sized data processor controlling to be built in detection device such as initializes, resets, calibrates, fault detect.Display unit can be to touch display screen.Preferably, display unit 600 is integrated with computing module the most further, is used for being completed to small part data processing task.
It should be understood that glass surface stress ga(u)ge of the present utility model is not limited to specific function or the structure of image-generating unit described above.Specifically, although in first embodiment above and modification thereof, image-generating unit includes analyser and photo-sensitive cell, but can be to have the image-generating unit of arbitrarily other applicable form according to glass surface stress ga(u)ge of the present utility model.Such as image-generating unit can be implemented as simply as the Visualization system of the interference fringe that the light for being totally reflected is produced by direct visual perception, can not include reflecting mirror or include more or less of reflecting mirror, etc..
Fig. 6 shows the glass surface stress ga(u)ge according to this utility model the second embodiment, and remaining is essentially identical according to the glass surface stress ga(u)ge of first embodiment, main difference is that, the reflecting surface 200b that reflecting mirror 105 is detected in prism 200 is replaced.Specifically, as shown in Figure 6, after the light entrance detection prism 200 of lighting unit, go out to be reflected at reflecting surface 200b, thus be directed into the detection surface 200a of detection rib 200.Reflecting surface 200b is preferably the lower bottom side detecting prism 200.By reflecting mirror and detection prism being integrated, overall space occupied by light path can be shortened further, it is achieved miniaturization；Meanwhile, simplify installation, and avoid the accuracy of detection reduction brought relative to the site error of detection prism due to reflecting mirror 105.
This utility model is not limited to above-described embodiment, and the various embodiments in description are only used for illustrating, and protection domain of the present utility model is not played restriction effect by it.In the case of without departing from this utility model scope, various changes and modifications can be carried out.In the ken that those skilled in the art are possessed, any omission of being made on the basis of this utility model disclosed embodiment, replace or revise and will fall into protection domain of the present utility model.
Claims (12)
1. a glass surface stress ga(u)ge, including:
Lighting unit, it includes light source；
Detection prism, it has for being fitted with the surface of detected glass to carry out the detection surface detected, and is totally reflected from the light of described lighting unit incidence detection prism joint place between described detection surface and the surface of detected glass；With
Image-generating unit, it is arranged to receive from the emergent light of described detection prism and form detection image,
It is characterized in that,
Described lighting unit also includes condenser lens, and this condenser lens is formed and is arranged as to be focused on by the light from described light source on the described detection surface of described detection prism or near it.
2. glass surface stress ga(u)ge as claimed in claim 1, it is characterised in that described light source is White LED light source.
3. glass surface stress ga(u)ge as claimed in claim 1, it is characterised in that described lighting unit also includes at least one in diaphragm and optical filter between described light source and described condenser lens.
4. glass surface stress ga(u)ge as claimed in claim 1, it is characterised in that described lighting unit also includes the light from described condenser lens is guided the reflecting mirror to described detection prism.
5. glass surface stress ga(u)ge as claimed in claim 1, it is characterised in that described detection prism also includes that the light to entering detection prism reflects and is channeled to the reflecting surface on described detection surface.
6. glass surface stress ga(u)ge as claimed in claim 1, it is characterised in that the focal length of described condenser lens is not more than 25mm.
7. the glass surface stress ga(u)ge as according to any one of claim 1-6, it is characterized in that, also include shading outer housing, described lighting unit, detection prism and image-generating unit are contained in this shading outer housing, and described shading outer housing is formed with detection hole, and the detection surface of described detection prism is stretched out from described detection hole.
8. glass surface stress ga(u)ge as claimed in claim 7, it is characterised in that described detection hole is positioned at described shading shield base, and between described shading outer housing and described detection prism, described detection hole is provided with shading sealing member.
9. glass surface stress ga(u)ge as claimed in claim 7, it is characterised in that the distance that the detection surface of described detection prism is stretched out from described detection hole is adjustable.
10. glass surface stress ga(u)ge as claimed in claim 7, it is characterized in that, described image-generating unit includes the first reflecting mirror, battery of lens, the second reflecting mirror, analyser and the photo-sensitive cell set gradually along light path, and can be provided with, through described shading outer housing, the regulating part that the position to described first reflecting mirror is adjusted.
11. glass surface stress ga(u)ges as claimed in claim 10, it is characterised in that also include:
Being arranged on the data processing unit in described shading outer housing, described photo-sensitive cell electrically connects with data processing unit；With
Being formed on the surface of described shading outer housing or be supported on the display unit on described shading outer housing, this display unit is electrically connected to described data processing unit, is used for showing described detection image.
12. glass surface stress ga(u)ges as claimed in claim 10, it is characterized in that, described image-generating unit also includes the 3rd reflecting mirror and visualization unit, 3rd reflecting mirror is arranged between described second reflecting mirror and analyser, it can rotate between the first position and the second position, in described primary importance, light from the second reflecting mirror is guided to described analyser by the 3rd reflecting mirror, and in the described second position, light from the second reflecting mirror is guided to described visualization unit by the 3rd reflecting mirror, described visualization unit exposes from described shading outer housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128724.0U CN205449356U (en) | 2015-12-29 | 2015-12-29 | Glass surface stress appearance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521128724.0U CN205449356U (en) | 2015-12-29 | 2015-12-29 | Glass surface stress appearance |
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| CN205449356U true CN205449356U (en) | 2016-08-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441655A (en) * | 2016-09-18 | 2017-02-22 | 北京杰福科技有限公司 | Glass surface stress detecting device |
| WO2017114122A1 (en) * | 2015-12-29 | 2017-07-06 | 南通杰福光学仪器科技有限公司 | Glass surface stress meter |
| WO2018050114A1 (en) * | 2016-09-18 | 2018-03-22 | 北京杰福科技有限公司 | Glass surface stress detection device |
-
2015
- 2015-12-29 CN CN201521128724.0U patent/CN205449356U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114122A1 (en) * | 2015-12-29 | 2017-07-06 | 南通杰福光学仪器科技有限公司 | Glass surface stress meter |
| CN106441655A (en) * | 2016-09-18 | 2017-02-22 | 北京杰福科技有限公司 | Glass surface stress detecting device |
| WO2018050114A1 (en) * | 2016-09-18 | 2018-03-22 | 北京杰福科技有限公司 | Glass surface stress detection device |
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Effective date of registration: 20240308 Address after: Room 520, 5th Floor, Building 3, Courtyard 69, Fushi Road, Haidian District, Beijing, 100143 Patentee after: BEIJING JEFFOPTICS Co.,Ltd. Country or region after: China Address before: Room 225, Building 1, Jimenli Community, Haidian District, Beijing 100191 Patentee before: BEIJING JEFFOPTICS Co.,Ltd. Country or region before: China Patentee before: NANTONG JIEFU OPTICAL INSTRUMENT TECHNOLOGY Co.,Ltd. |