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Prism and glass surface stress test device

A stress detection, glass surface technology, applied in prism, installation, force measurement by measuring the change of optical properties of materials under stress, etc., to achieve the effect of simple and compact structure and convenient manufacturing

Pending Publication Date: 2017-01-11
BEIJING JEFFOPTICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the lead-in prism and the lead-out prism are formed separately and a diaphragm needs to be set between them, which is not enough to ensure the parallel coplanarity between the corresponding surfaces of the lead-in prism and the lead-out prism that are bonded to the glass surface

Method used

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  • Prism and glass surface stress test device
  • Prism and glass surface stress test device
  • Prism and glass surface stress test device

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Embodiment Construction

[0026] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0027] figure 1 It is a schematic structural diagram of a glass surface stress detection device 100 according to an embodiment of the present invention. Such as figure 1 As shown, the glass surface stress detection device 100 includes: an illumination unit 10 , a detection prism 20 and an imaging unit 30 .

[0028] The lighting unit 10 is used for providing polarized lighting light, and the lighting unit includes a light source. exist figure 1 In the example shown, the light source of the illumination unit 10 includes a laser 12 and a collimating beam expander 13 . The laser light...

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Abstract

The application discloses a prism and a glass surface stress test device using the prism as a test prism. The prism comprises an import prism part and an export prism part, which are formed integrally. The import prism part and the export prism part are respectively provided with a first working surface and a second working surface, which are coplanar. The prism is provided with at least one groove which is between the import prism part and the export prism part and perpendicular to the first working surface and the second working surface, and the at least one groove forms a diaphragm used for stopping light from being propagated from one side of the first working surface to one side of the second working surface. The import prism part and the export prism part are formed integrally, and the diaphragm is formed on the integrated prism by grooving, so that coplanar working surfaces are ensured on one hand, and on the other hand, the prism has a simple and compact structure and is easy to manufacture.

Description

technical field [0001] The present disclosure relates to an optical detection device, in particular, to a glass surface stress detection device and a prism that can be applied thereto. Background technique [0002] Glass panels are common materials in both daily life and industrial production. In order to measure the quality of the glass plate and ensure the safety of the glass plate, it is often necessary to measure the stress in the glass plate. In order to detect the stress of the glass plate, the national standard and other standards stipulate that the surface stress of the glass is measured by means of birefringence to characterize the stress level inside the glass. At present, in actual use, there are mainly methods for measuring the surface stress of glass: differential surface refraction method DSR (Differential Surface Refractometry), surface grazing angle polarization method GASP (Grazing Angle Surface Plarimetry), and Estonia recently introduced a method of trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/04G02B7/18G01L1/24
CPCG01L1/24G02B5/04G02B7/1805
Inventor 李俊峰
Owner BEIJING JEFFOPTICS CO LTD
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