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45-degree annular illumination device used for on-line light splitting color photometer

A spectrophotometric and annular lighting technology, which is applied in measurement devices, color measurement devices, spectrometry/spectrophotometry/monochromator, etc., and can solve problems such as the influence of measurement results and the inability to use the measured object to shake up and down. , to achieve the effect of increasing stability, easy connection, and uniform lighting

Active Publication Date: 2014-04-02
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0007] The disadvantage of this system is that once the measured object leaves the elliptical focal point, the energy distribution of the illumination light on the measured object will change greatly, and the shaking of the measured object will have a serious impact on the measurement results. Jitter situation

Method used

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  • 45-degree annular illumination device used for on-line light splitting color photometer
  • 45-degree annular illumination device used for on-line light splitting color photometer
  • 45-degree annular illumination device used for on-line light splitting color photometer

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 2 As shown, a 45-degree annular lighting device for an online spectrophotometer includes: a light source box 9, a substrate 10, a lighting box 11, a pulse xenon lamp trigger module 12, a pulse xenon lamp 13, and a filter 14, Filter base 15, ground glass 16, ground glass diaphragm 17, first cylindrical diaphragm 18, second cylindrical diaphragm 19, plate diaphragm 20, cylindrical annular mirror 21, glass plate 22, object to be measured 23, a lens group 24, a reflective prism 25, an optical fiber barrel 26, a sample measurement branch optical fiber 27, a light source monitoring branch reflector 28, and a light source monitoring branch optical fiber 29.

[0017] The light source box 9 and the lighting box 11 are installed on the upper and lower ends of the base plate 10 respectively.

[0018] A pulse xenon lamp trigger mo...

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Abstract

The invention provides a 45-degree annular illumination device used for an on-line light splitting color photometer, and belongs to the technical field of color measuring illumination. The device meets the measuring error requirements caused by uniform illumination and tested object vibration compensation in the on-line color measurement, and comprises a pulse xenon lamp, frosted glass, frosted glass diaphragm, a first tubular diaphragm, a second tubular diaphragm, a flat plate diaphragm, a cylindrical surface annular reflector, a lens group, a reflecting prism and a sample measuring branch optical fiber. The device is particularly suitable for being used for the on-line non-contact color measurement, the 45-degree annular illumination can realize more uniform illumination effect on a tested object, the test result stability is enhanced, the illumination device is modularized, the optical fiber interface is standardized, the connection with a universal optical fiber spectrograph is convenient, and meanwhile, the measuring error caused by the vibration of the tested object is minimized by the illumination device.

Description

technical field [0001] The invention belongs to the technical field of lighting in color measurement, and in particular relates to a 45-degree ring lighting device for an online spectrophotometer. Background technique [0002] Using a colorimeter to replace the human eye to distinguish colors can not only improve product quality very effectively, but also high-precision colorimetry is a prerequisite for computer color matching. The color of the product is monitored and controlled on the production line. This continuous mass production has relatively high requirements for color quality, usually with high repeatability. The online spectrophotometer can complete these tasks very well, and greatly improve the production efficiency and the degree of automation of production. On-line color measurement refers to the measurement of the color of the product on the production line of the printing and dyeing workshop. The online spectrophotometer fully combines the rapidity, reliabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/10G01J3/46
Inventor 颜昌翔刘怡轩田士涛陈伟
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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