Stress analysis system for curved surface inspection materials

A stress analysis and stress distribution technology, applied in the field of stress analysis systems for curved surface inspection materials, which can solve problems such as inaccurate stress distribution of 3D curved glass

Active Publication Date: 2020-07-07
HEREN KEJI SHENZHEN LLC
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Problems solved by technology

[0005] Based on this, in order to solve the technical problem of inaccurate stress distribution of 3D curved glass d

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  • Stress analysis system for curved surface inspection materials
  • Stress analysis system for curved surface inspection materials
  • Stress analysis system for curved surface inspection materials

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[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0047] In order to solve the technical problem that the stress analysis system based on the interference principle in the traditional technology has low accuracy when analyzing 3D curved glass and other curved materials, the present invention proposes a stress analysis system for curved materials, which can be referred to figure 1 As shown, figure 1 The optical device and optical path diagram are shown, and the stress analysis system inclu...

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Abstract

A stress analysis system for a curved surface inspection material comprises: a light source (10) for emitting an illumination beam; a polarizer (20), a first wavefront modulation lens (30), the curvedsurface inspection material, a second wavefront modulation lens (40), a polarization analyzer (50) and an image sensor (60) which are sequentially arranged on a light path of the illumination light beam. The thickness distribution of the first wavefront modulation lens (30) and the distance from the first wavefront modulation lens (30) to the curved surface test material satisfy the following conditions: the wavefront of the illumination beam reaching the incident surface of the curved surface test material is consistent with the incident surface of the curved surface test material; the imagesensor (60) is used for acquiring interference imaging of the illumination light beam; the device further comprises a processor (70) which is used for obtaining interference images collected by the image sensor (60) and detecting the stress distribution of the curved surface inspection material according to the interference images. The stress analysis system of the curved surface inspection material is more accurate.

Description

technical field [0001] The invention relates to the technical field of industrial testing, in particular to a stress analysis system for curved surface material testing. Background technique [0002] With the rapid development of the mobile Internet industry, smart mobile terminal manufacturers and products emerge in an endless stream, and the appearance and material of the smart mobile terminal housing are also constantly improving. At present, mainstream mobile phone manufacturers have launched terminal products based on 3D curved glass, which have been favored by many mobile phone manufacturers and consumers because of their advantages such as transparency and cleanliness, anti-fingerprint, anti-glare, easy to cooperate with flexible OLED screens, and more ergonomics. of favor. [0003] However, the processing process of 3D curved glass needs to go through the "hot bending" process of glass. The glass produced by this process will have residual stress to varying degrees...

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Application Information

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IPC IPC(8): G01L1/24
CPCG01L1/24
Inventor 王星泽何良雨闫静
Owner HEREN KEJI SHENZHEN LLC
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