CN104330359A - Glass stress measuring device - Google Patents
Glass stress measuring device Download PDFInfo
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- CN104330359A CN104330359A CN201410605138.4A CN201410605138A CN104330359A CN 104330359 A CN104330359 A CN 104330359A CN 201410605138 A CN201410605138 A CN 201410605138A CN 104330359 A CN104330359 A CN 104330359A
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- glass
- stress
- light source
- tested sample
- polarizer
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a glass stress measuring device which comprises a light source, a collecting lens, a reflector, a polarizer, a full-wave plate, a divergent mirror and a polarization analyzer, wherein light rays emitted from the light source sequentially pass through the collecting lens, the reflector, the polarizer, the full-wave plate and the divergent mirror and then irradiate a to-be-measured sample, and enter the polarization analyzer after passing through the to-be-tested sample, and the to-be-tested sample is placed on table board glass. The glass stress measuring device disclosed by the invention is capable of rapidly and effectively detecting stress on the surface of glass, and is simple in structure, convenient to use, high in measurement precision, low in cost, and suitable for measuring the stress on the surfaces of most of glass.
Description
Technical field
The present invention relates to a kind of glass detection device, particularly a kind of glass strain measurement mechanism.
Background technology
Due to the singularity of production technology, in the glassware after completing, also there is internal stress more or less.In glass forming process, due to external mechanical force effect or cooling time heat uneven produced stress be called thermal stress or macro-stress.At inside glass, the stress that the micro-uneven district formed due to uneven components causes is called structural stress or microstress.Stress existing in the volume range being equivalent to unit cell dimension in glass is called ultramicroscopic view stress.Due to the architectural characteristic of glass, microcosmic wherein and ultramicroscopic view stress minimum, little on the impact of the physical strength of glass.What have the greatest impact is thermal stress in glass, because this stress is normally extremely uneven, can reduces physical strength and the thermal stability of glassware, affect the safe handling of goods, even autoclasis phenomenon can occur time serious.Therefore, in order to ensure safety when using, various glassware is all specified that the internal stress of its remnants can not exceed a certain setting.For optical glass, the existence of larger stress will have a strong impact on light transmission and image quality.Therefore, the internal stress measuring glass is a kind of means of Mass Control, particularly the product of the valuable or precision that quality requirements is higher is even more important, take place frequently due to earthquake disaster, the glazing in urban high buildings and large mansions, apartment all can use safety glass, do not have clear and definite specification about safety glass for building, former analyzer sensitivity is very low, is difficult to carry out sufficient qualitative control.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of glass strain measurement mechanism that can solve the problem.
The present invention in order to the technical scheme solving its technical matters and adopt is: a kind of glass strain measurement mechanism, comprise light source, condenser, reflective mirror, polarizer, full-wave plate, divergent mirror and analyzer, the light of described light source injection is irradiated to tested sample successively after condenser, reflective mirror, polarizer, full-wave plate, divergent mirror, after tested sample, enter analyzer, described tested sample is placed on table top glass.
As a further improvement on the present invention, be provided with two condensers, the distance between described two condensers is greater than their focal length.
As a further improvement on the present invention, heat shield is provided with between described condenser and light source.
The invention has the beneficial effects as follows: glass strain pick-up unit of the present invention fast and effeciently can detect the stress of glass surface, and this apparatus structure is simple, easy to use, measuring accuracy is high, with low cost, is applicable to most glass surface stress measurement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Indicate in figure: 1-light source; 2-condenser; 3-reflective mirror; 4-polarizer; 5-full-wave plate; 6-divergent mirror; 7-analyzer; 8-tested sample; 9-table top glass; 10-heat shield.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
Fig. 1 shows a kind of embodiment of a kind of glass strain of the present invention measurement mechanism, comprise light source 1, condenser 2, reflective mirror 3, polarizer 4, full-wave plate 5, divergent mirror 6 and analyzer 7, the light that described light source 1 penetrates is irradiated to tested sample 8 successively after condenser 2, reflective mirror 3, polarizer 4, full-wave plate 5, divergent mirror 6, after tested sample 8, enter analyzer 7, described tested sample 8 is placed on table top glass 9.Be provided with two condensers 2, the distance between described two condensers 2 is greater than their focal length, is provided with heat shield 10 between described condenser 2 and light source 1.
Claims (3)
1. a glass strain measurement mechanism, it is characterized in that: comprise light source (1), condenser (2), reflective mirror (3), polarizer (4), full-wave plate (5), divergent mirror (6) and analyzer (7), the light that described light source (1) penetrates is successively through condenser (2), reflective mirror (3), polarizer (4), full-wave plate (5), tested sample (8) is irradiated to after divergent mirror (6), analyzer (7) is entered after tested sample (8), described tested sample (8) is placed on table top glass (9).
2. glass strain measurement mechanism according to claim 1, is characterized in that: be provided with two condensers (2), and the distance between described two condensers (2) is greater than their focal length.
3. glass strain measurement mechanism according to claim 1, is characterized in that: be provided with heat shield (10) between described condenser (2) and light source (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605138.4A CN104330359A (en) | 2014-11-03 | 2014-11-03 | Glass stress measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605138.4A CN104330359A (en) | 2014-11-03 | 2014-11-03 | Glass stress measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104330359A true CN104330359A (en) | 2015-02-04 |
Family
ID=52405129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410605138.4A Pending CN104330359A (en) | 2014-11-03 | 2014-11-03 | Glass stress measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104330359A (en) |
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 |
| US11105612B2 (en) | 2019-03-22 | 2021-08-31 | Corning Incorporated | Hybrid systems and methods for characterizing stress in chemically strengthened transparent substrates |
| US11860090B2 (en) | 2021-04-01 | 2024-01-02 | Corning Incorporated | Light source intensity control systems and methods for improved light scattering polarimetry measurements |
-
2014
- 2014-11-03 CN CN201410605138.4A patent/CN104330359A/en active Pending
Cited By (4)
| 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 |
| CN106932130A (en) * | 2015-12-29 | 2017-07-07 | 北京杰福科技有限公司 | Glass surface stress ga(u)ge |
| US11105612B2 (en) | 2019-03-22 | 2021-08-31 | Corning Incorporated | Hybrid systems and methods for characterizing stress in chemically strengthened transparent substrates |
| US11860090B2 (en) | 2021-04-01 | 2024-01-02 | Corning Incorporated | Light source intensity control systems and methods for improved light scattering polarimetry measurements |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |