CN108627291A - A kind of light-source structure and the glass surface stress gauge using the light-source structure - Google Patents
A kind of light-source structure and the glass surface stress gauge using the light-source structure Download PDFInfo
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- CN108627291A CN108627291A CN201810499483.2A CN201810499483A CN108627291A CN 108627291 A CN108627291 A CN 108627291A CN 201810499483 A CN201810499483 A CN 201810499483A CN 108627291 A CN108627291 A CN 108627291A
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- optical filter
- light source
- light
- laser light
- rotary drive
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- 239000011521 glass Substances 0.000 title claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000010287 polarization Effects 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000001427 coherent effect Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000005341 toughened glass Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
Abstract
The invention belongs to optical element and field of optical detection,More particularly to the glass surface stress gauge of a kind of light-source structure and the application light-source structure,Light-source structure of the present invention includes laser light source,The light emitting direction front end of the laser light source is equipped with optical filter and optical filter rotary drive mechanism,The optical filter rotary drive mechanism connects optical filter,Optical filter rotates under the driving of optical filter rotary drive mechanism,The monochromatic coherent light polarization state of laser light source outgoing is changed,Make light beam be converted into convenient for identifying two groups are bright,The alternate striped row of dark fringe,It is simple in structure,Manufacturing cost is low,And light-source monochromaticity is good,Image camera can be accurately identified bright when capturing stressed cord image,Spacing between dark stressed cord row,And the ready position of each stressed cord,Improve stress mornitoring result precision,The present invention is convenient to use using the glass surface stress gauge of the light-source structure,Stress mornitoring precision is high,It has broad application prospects.
Description
Technical field
The invention belongs to optical element and field of optical detection, and in particular to a kind of light-source structure and apply the light-source structure
Glass surface stress gauge.
Background technology
It is well known that in the production technology of the transparent articles such as tempered glass, organic glass, forming annealing is that it is heavy to closing
The step wanted, the quality of annealing process directly determine that intensity and the service life of glassware, annealing are uneven or not exclusively equal
It is even to lead to have residual stress generation in product.In addition, as a kind of prestressed glass, it usually needs use chemically or physically
Method forms compression in glass surface, and glass bears to offset surface layer pressure first when external force, to improve bearing capacity,
Thus tempered glass is widely used in the fields such as building doors and windows, glass curtain wall, electronic instrument.Although the glass handled by tempering
Due to generating stress to improve its bearing capacity, but this stress is typically extremely non-uniform, can reduce tempered glass system
The mechanical strength and thermal stability of product, influence the safe handling of glassware, can even occur to reveal phenomenon when serious.Especially
With flourishing for touch-control industry, the specification requirement of touch-control product itself is also increasingly stringent, since touch panel is by outside
Applying pressure goes the function mode for carrying out inductive component to reach using effect, therefore the mechanical compressive resistance of product is major factory
The important specification and index of quotient.For optical glass, the presence of larger stress has also seriously affected optical clarity and at image quality
Amount.Thus, to ensure that the performance of tempered glass article, the stress of tempered glass will control in prescribed limit, this will
It asks and the surface stress of tempered glass is detected.
Common tempered glass surface stress instrument includes light source, refracting prisms, eyepiece, industrial camera, folding currently on the market
The light direction of the launch that prism is located at light source is penetrated, one end of eyepiece is located at the anaclasis direction of refracting prisms, and the other end connects work
Industry camera, using this stress gauge detect tempered glass surface stress when, by glass to be measured be placed on prism surface make prism with
It fits, and the light that light source is sent out is incident on refracting prisms, is totally reflected in the contact surface of refracting prisms and glass to be measured.
Since tempered glass surface is there are stress, be incident on glass surface total reflection light will produce under the action of stressor layers it is two-fold
It penetrates, forms the two mutually perpendicular light beams in beam polarization direction, which is convenient for knowing by being converted into after eyepiece, industrial camera
Other two groups striped row bright, dark fringe is alternate, by comparing corresponding position between bright fringes or dark fringe in two groups of striped row
Set the stress that correspondence calculates glass surface.In measurement process, the light source of different wave length will produce multigroup different stress
Striped, and the initial position of each group of stressed cord is different, thus, in order to accurately calculate the surface of sample to be tested
Stress, it is necessary to ensure that the monochromaticjty of light source is good enough, otherwise industrial camera can not be just recognized accurately when capturing image it is bright,
The accurate location of spacing and each stressed cord between dark fringe row, this just directly results in stress mornitoring result precision
It is low, can not even obtain testing result.Although in the market successively appearance with monochromatic LED light source coordinate narrow-band bandpass filter plate side
Formula removes the outgoing wavelength of limitation LED light source in monochromatic LED light source rear end, still, according to many examinations using narrow-band bandpass filter plate
Verification compares accurately results of stress to obtain, and the narrowband of band pass filter needs to reach 1nm, this just undoubtedly increases
Add very big technical costs, causes stress gauge entirety manufacturing cost higher, thus can not be widely available.
Invention content
Present invention aim to address above-mentioned the deficiencies in the prior art, provide it is a kind of it is simple in structure, accuracy of detection is high, manufacture
The surface stress instrument of the at low cost, light-source structure that widely available can use and the application light-source structure.
Technical solution is used by the present invention solves above-mentioned the deficiencies in the prior art：
A kind of light-source structure, which is characterized in that including laser light source, the light emitting direction front end of the laser light source, which is equipped with, filters
Piece and optical filter rotary drive mechanism, the optical filter rotary drive mechanism connect the optical filter, and the optical filter is in institute
It states and rotates under the driving of optical filter rotary drive mechanism.
Preferably, heretofore described optical filter rotary drive mechanism is to be equipped with electric rotating in the optical filter side
Machine, the electric rotating machine connect the optical filter through transmission device, and the optical filter carries out under the driving of the electric rotating machine
Rotation, is changed the shoot laser polarization state of the laser light source, makes the monochromatic light that laser light source emits through sample to be tested
After total reflection, the two mutually perpendicular light beams in beam polarization direction are formed, the two light beams after eyepiece, industrial camera by being converted
At the striped row that two groups convenient for identification are bright, dark fringe is alternate, by comparing corresponding bright fringes or dark fringe in two groups of striped row
Between position correspondence calculate the stress of glass surface.
Preferably, the present invention also provides a kind of glass surface stress gauge of application light-source structure as described above, the glass
Glass surface stress instrument includes light source fixed seat, and the light source fixed seat is equipped with laser light source, the light emitting of the laser light source
Direction is equipped with optical filter, refracting prisms, eyepiece, image camera successively, and the laser beam of the laser light source transmitting is through the optical filtering
It is imaged into the image camera after piece, refracting prisms, the optical filter connects optical filter rotary drive mechanism, the filter
Mating plate is rotated under the driving of the optical filter rotating mechanism, and the image camera acquires the optical filter in rotary course
In stressed cord image.
Preferably, the speed of heretofore described optical filter acquires stressed cord image higher than the image camera
Frequency.In rotary course, the polarization state for the monochromatic coherent light that can emit laser light source is persistently changed optical filter,
Make monochromatic light that birefringence occur after sample to be tested, form the two mutually perpendicular light beams in beam polarization direction, which passes through
It is imaged into image camera after eyepiece, is converted into two groups of striped row bright, dark fringe is alternate convenient for identification, passes through comparison
Corresponding position correspondence between bright fringes or dark fringe calculates the stress of glass surface in two groups of striped row.
Preferably, light source controlling mechanism, the light source controlling mechanism are additionally provided in heretofore described light source fixed seat
The incident angle of the laser light source can be adjusted, improve stress measurement precision.
Preferably, heretofore described light source controlling mechanism is that the light source fixed seat is equipped with tune up and down
Threaded hole is saved, adjusting screw rod is equipped in the adjusting threaded hole, one end of the adjusting screw rod is equipped with adjusting knob.When use only
It needs that fine adjustments to laser light source incident angle can be realized by rotation of adjustment knob, simplifies overall structure, improve
The integrated level of stress gauge of the present invention.
The invention has the advantages that since light-source structure of the present invention includes laser light source, the light of the laser light source is sent out
It penetrates direction front end and is equipped with optical filter and optical filter rotary drive mechanism, the optical filter rotary drive mechanism connects the optical filtering
Piece, the optical filter rotate under the driving of the optical filter rotary drive mechanism, and the optical filter is in rotary course
In can to the laser light source be emitted monochromatic coherent light polarization state be changed, make laser light source emit monochromatic light through waiting for
After sample total reflection, the two mutually perpendicular light beams in beam polarization direction are formed, after the two light beams are by eyepiece, industrial camera
Be converted into two groups of bright, stripeds that dark fringe is alternate row convenient for identification, by compare in two groups of stripeds row corresponding bright fringes or
Position correspondence between dark fringe calculates the stress of glass surface, and simple in structure, manufacturing cost is low, and light-source monochromaticity
Good, image camera can be accurately identified the spacing between bright, dark stressed cord row when capturing stressed cord image, and every
The ready position of one stressed cord improves stress mornitoring result precision.The present invention applies the glass surface of the light-source structure
Stress gauge is convenient to use, and stress mornitoring precision is high, has broad application prospects.
Description of the drawings
Fig. 1 is a kind of example structure schematic diagram of light-source structure of the present invention and a kind of preferred embodiment schematic diagram.
Fig. 2 is that a kind of example structure schematic diagram of glass surface stress gauge of the present invention and a kind of preferred implementation illustrate
It is intended to.
Fig. 3 is stressed cord figure of the laser light source as glass surface stress mornitoring equipment light source in the prior art.
Fig. 4 is stressed cord figure when being measured using glass surface stress gauge of the present invention.
Specific implementation mode
It is described below for disclosing the present invention so that those skilled in the art can realize the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
The present invention basic principle can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
Embodiment one
Fig. 1 shows a kind of example structure schematic diagram of light-source structure of the present invention and a kind of preferred embodiment schematic diagram.Such as
Shown in Fig. 1, the light-source structure described in the present embodiment, including laser light source 10, the light emitting direction front end of the laser light source 10
Equipped with optical filter 20 and optical filter rotary drive mechanism 30, the optical filter rotary drive mechanism 30 connects the optical filter
20, the optical filter rotates under the driving of the optical filter rotary drive mechanism.Laser light is selected in the present embodiment
Source provides light environment for stress mornitoring, and laser light source monochromaticjty is good, because without with the very small band pass filter in narrowband, drop
Low manufacturing cost, but since laser light source belongs to coherent source, outgoing polarization state is consistent, leads to stress mornitoring striped mould
Paste it is unclear, as shown in figure 3, for stressed cord of the laser light source as glass surface stress mornitoring equipment light source in the prior art
Figure also just can not execute surface stress from the figure 3, it may be seen that stressed cord can not be identified when stress mornitoring to glass to be measured
Calculating.Thus, it is described by the way that optical filter and optical filter rotary drive mechanism is arranged in laser light source front end in the present embodiment
Optical filter rotates under the driving of the optical filter rotary drive mechanism, and optical filter described in rotary course can be to institute
The monochromatic coherent light polarization state for stating laser light source outgoing is changed, and the monochromatic light that laser light source emits is made to be all-trans through sample to be tested
After penetrating, the two mutually perpendicular light beams in beam polarization direction are formed, the two light beams after eyepiece, industrial camera by being converted into just
In two groups of striped row bright, dark fringe is alternate of identification, in being arranged by two groups of stripeds of comparison accordingly between bright fringes or dark fringe
Position correspondence calculate the stress of glass surface, simple in structure, manufacturing cost is low, and light-source monochromaticity is good, image camera
The spacing and each stress item that can be accurately identified when capturing stressed cord image between bright, dark stressed cord row
The ready position of line improves stress mornitoring result precision.
Preferably, the optical filter rotary drive mechanism 30 described in the present embodiment is in the optical filter one
Side is equipped with electric rotating machine, and the electric rotating machine connects the optical filter through transmission device, and the optical filter is in the electric rotating machine
Driving under rotated, the shoot laser polarization state of the laser light source is changed, make laser light source emit monochrome
After light is totally reflected through sample to be tested, the two mutually perpendicular light beams in beam polarization direction are formed, which passes through eyepiece, industry
Two groups of striped row bright, dark fringe is alternate convenient for identification are converted into after camera, it is corresponding bright in two groups of striped row by comparing
Position correspondence between striped or dark fringe calculates the stress of glass surface.Transmission device described in the present embodiment can be with
It is any structure with transmission agency, the transmission device is preferably a shaft coupling in the present embodiment.
Embodiment two
The glass surface stress gauge for present embodiments providing light-source structure described in a kind of Application Example one, as shown in Fig. 2, this reality
It includes light source fixed seat 40 to apply the glass surface stress gauge described in example, and the light source fixed seat 40 is equipped with laser light source 10, institute
The light emitting direction for stating laser light source is equipped with optical filter 20, refracting prisms 50, eyepiece 60, image camera 70, the refraction successively
For placing glass to be measured on prism 50, the laser beam that the laser light source 10 emits through the optical filter 20, refracting prisms 50, wait for
It is imaged into the image camera 70 after surveying glass, the optical filter 20 connects optical filter rotary drive mechanism 30, described
Optical filter is rotated under the driving of the optical filter rotating mechanism, and the image camera acquires the optical filter and rotating through
Stressed cord image in journey.Due to adding optical filter and optical filter whirler in the laser light source front end in the present embodiment
Structure can be emitted the laser light source during optical filter is rotated under the driving of optical filter rotary drive mechanism
Monochromatic coherent light polarization state be changed, make laser light source emit monochromatic light be totally reflected through sample to be tested after, formed two
The mutually perpendicular light beam in beam polarization direction, the two light beams are by being converted into two groups that are convenient for identifying after eyepiece, image camera
The striped row bright, dark fringe is alternate, as shown in figure 4, in being arranged by two groups of stripeds of comparison accordingly between bright fringes or dark fringe
Position correspondence calculates the stress of glass surface, and simple in structure, manufacturing cost is low, and light-source monochromaticity is good, and image camera exists
The spacing and each stressed cord that can be accurately identified when capturing stressed cord image between bright, dark stressed cord row
Ready position, stress mornitoring result precision is high.
Preferably, it is additionally provided with light source controlling mechanism in the light source fixed seat 40 described in the present embodiment, institute
The incident angle of the laser light source can be adjusted by stating light source controlling mechanism, improve stress measurement precision.Preferably, in
In the present embodiment, the light source controlling mechanism is that the light source fixed seat 40 is equipped with adjusting threaded hole up and down, institute
It states to adjust and is equipped with adjusting screw rod 41 in threaded hole, one end of the adjusting screw rod is equipped with adjusting knob 42.It only needs to lead to when use
It crosses rotation of adjustment knob and fine adjustments to laser light source incident angle can be realized, simplify overall structure, improve this hair
The integrated level of bright stress gauge.
It should be understood by those skilled in the art that the embodiment of the present invention shown in foregoing description and attached drawing is only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.The function and structural principle of the present invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (6)
1. a kind of light-source structure, which is characterized in that including laser light source, the light emitting direction front end of the laser light source is equipped with filter
Mating plate and optical filter rotary drive mechanism, the optical filter rotary drive mechanism connect the optical filter, and the optical filter exists
It rotates under the driving of the optical filter rotary drive mechanism.
2. light-source structure according to claim 1, which is characterized in that the optical filter rotary drive mechanism is described
Optical filter side is equipped with electric rotating machine, and the electric rotating machine connects the optical filter through transmission device.
3. glass surface stress gauge according to claim 1, which is characterized in that including light source fixed seat, the light source is solid
Reservation is equipped with laser light source, and the light emitting direction of the laser light source is equipped with optical filter, refracting prisms, eyepiece, imaging successively
The laser beam of camera, the laser light source transmitting is imaged after the optical filter, refracting prisms into the image camera,
The optical filter connects optical filter rotary drive mechanism, and the optical filter is revolved under the driving of the optical filter rotating mechanism
Turn, the image camera acquires stressed cord image of the optical filter in rotary course.
4. glass surface stress gauge according to claim 3, which is characterized in that the speed of the optical filter is higher than
The frequency of the image camera acquisition stressed cord image.
5. requiring the glass surface stress gauge described in 4 according to claim, which is characterized in that also set in the light source fixed seat
There are light source controlling mechanism, the light source controlling mechanism that the incident angle of the laser light source is adjusted.
6. glass surface stress gauge according to claim 5, which is characterized in that the light source controlling mechanism is, described
Light source fixed seat is equipped with adjusting threaded hole up and down, and adjusting screw rod, the adjusting spiral shell are equipped in the adjusting threaded hole
One end of bar is equipped with adjusting knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810499483.2A CN108627291A (en) | 2018-05-23 | 2018-05-23 | A kind of light-source structure and the glass surface stress gauge using the light-source structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810499483.2A CN108627291A (en) | 2018-05-23 | 2018-05-23 | A kind of light-source structure and the glass surface stress gauge using the light-source structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627291A true CN108627291A (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810499483.2A Withdrawn CN108627291A (en) | 2018-05-23 | 2018-05-23 | A kind of light-source structure and the glass surface stress gauge using the light-source structure |
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| Country | Link |
|---|---|
| CN (1) | CN108627291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472209A (en) * | 2022-01-14 | 2022-05-13 | 重庆海云捷迅科技有限公司 | Industrial defect intelligent detection teaching training device |
| CN114838759A (en) * | 2022-04-08 | 2022-08-02 | 彩虹集团（邵阳）特种玻璃有限公司 | Glass sample block quality detection device and method |
-
2018
- 2018-05-23 CN CN201810499483.2A patent/CN108627291A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472209A (en) * | 2022-01-14 | 2022-05-13 | 重庆海云捷迅科技有限公司 | Industrial defect intelligent detection teaching training device |
| CN114838759A (en) * | 2022-04-08 | 2022-08-02 | 彩虹集团（邵阳）特种玻璃有限公司 | Glass sample block quality detection device and method |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181009 |
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