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Optical system of multi-angle vancometer and implementation method of optical system

A technology of optical system and gloss, which is applied in the direction of optical testing of flaws/defects, material analysis through optical means, instruments, etc. It can solve the problems of affecting the measurement accuracy and the large volume of multi-angle gloss meters, and achieves simple structure, Achieve traceability, long-life effect

Active Publication Date: 2017-07-28
上海仪电物理光学仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an optical system of a multi-angle gloss meter with a simple structure and a small volume in view of the technical defects that the above-mentioned existing multi-angle gloss meter is bulky and is easily affected by surface defects of the object to be measured. , high reliability, low cost

Method used

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  • Optical system of multi-angle vancometer and implementation method of optical system
  • Optical system of multi-angle vancometer and implementation method of optical system
  • Optical system of multi-angle vancometer and implementation method of optical system

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Embodiment 1

[0022] as attached figure 1 As shown, taking a single light source with an incident light source group at an angle of 60° as an example, the light source group is an LED single light source 1, and the uniform white light emitted becomes parallel light through the first condenser lens 2, and directly irradiates the subject with an optical axis of 60° The surface of the measured object 7 passes through the specular diffuse reflection light on the surface of the measured object 7 and then passes through the second condenser lens 5 to converge the parallel light in the direction of the optical axis 60° onto the silicon photocell 6 . At the same time, the short-focus imaging lens 3 images the surface of the measured object 7 on the photosensitive surface of the area array CCD acquisition system 4, and the ARM controller controls the area array CCD acquisition system 4 to realize image acquisition on the surface of the test object, and the image is processed and analyzed to obtain th...

Embodiment 2

[0041] as attached figure 2 As shown, the light source group includes light sources at three angles, and the uniform white light emitted by the LED light sources 1, 3, and 6 of the instrument in turn becomes parallel light through the corresponding first condenser lenses 2, 4, and 5, respectively, with the optical axis 20° , 60°, 85° directions, directly irradiate the surface of the measured object 15, and pass through the specular diffuse reflection of the measured object 15 surface and then respectively pass through the corresponding second condenser lenses 10, 11, 13 with optical axes 20°, 60° , the parallel light in the direction of 85° converges on the corresponding silicon photocells 9, 12, and 14 respectively, and at the same time, the short-focus imaging lens 7 images the surface of the measured object on the photosensitive surface of the CCD acquisition system 8, and the ARM controller controls the area array CCD acquisition System 8 realizes the image acquisition of...

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Abstract

The invention relates an optical system of a multi-angle vancometer and an implementation method of the optical system. The optical system comprises a light source group, wherein incident rays emitted by the light source group are emitted out after being changed into parallel rays by corresponding first condensing lenses and respectively directly irradiate the surface of a measured object in corresponding optical axis directions, and the parallel rays along the optical axis directions are subjected to mirror surface diffuse reflection by the surface of the object and are respectively converged to corresponding silicon solar cells by corresponding second condensing lenses. The optical system is characterized in that the surface of the measured object is imaged to a light-sensitive surface of an area array CCD by virtue of a short-focus imaging lens, and a area array CCD collection system is controlled by virtue of an ARM controller. According to the optical system, angle expansion is realized, namely that three-angle glossiness measurement is realized by virtue of a single-angle light path and five-angle glossiness measurement is realized by virtue of a three-angle light path, so that the miniaturization of the vancometer is realized; and besides, by utilizing a video photographing manner, surface defects of products can be judged by virtue of an image processing algorithm, a correct measurement part can be selected, the traceability of the measurement part can be realized, and the accuracy of a measurement result can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of material analysis and detection instruments, and in particular relates to an optical system of a multi-angle gloss meter and a realization method thereof. Background technique [0002] The gloss meter is an instrument that uses the photoelectric reflection working principle to measure the brightness of the surface of the object. Gloss is an important apparent attribute of an object and one of the important basis for people to evaluate product quality. Therefore, it is widely used in coatings, paper, plastics, ceramics, marble and other building materials and decorative metal materials, textiles, leather processing, packaging and other industrial sectors. [0003] With the development of the economy, the market has increasingly strict requirements on the surface quality of industrial products. Therefore, more and more industries need to use gloss meters to test their respective products. According to JJG...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/88
CPCG01N21/01G01N21/8806
Inventor 孙流星
Owner 上海仪电物理光学仪器有限公司