A standard light source colorimetric light box containing a led white light source and a color difference measuring instrument

Abstract

Disclosed is a standard light source colorimetric light box comprising an LED white light source and a chromatic aberration measurement instrument. The standard light source colorimetric box includes six parts of a box body (1), a light source group (2), a light source box (3), a colorimetric table (4), the chromatic aberration measurement instrument (5) and a light source selection switch (6). The standard light source colorimetric box is characterized in that apart from a D65 light source, a CWF light source, an A light source, a TL84 light source, an F light source and a UV light source with a wavelength of 365nm, the light source group (2) in the light box also includes but is not limited to warm white LED light source with a color temperature of 3000K-3500K, a pure white LED light source with a color temperature of 5000K-5500K and a cool white LED light source with a color temperature of 6500K-7000K; and the standard light source colorimetric box has the functions of capable of not only detecting a color of a product under an existing light source, but also comparing chromatic aberrations under the illumination of the LED light source. Meanwhile, configuration of the chromatic aberration measurement instrument in the box allows objective color comparison of a sample and a standard sample.

Description

technical field [0001] The invention belongs to the field of color comparison measurement, in particular to a standard light source color comparison light box including an LED white light source and a color difference measuring instrument. Background technique [0002] The standard light source colorimetric light box can simulate the lighting of various lighting environments. It is often used in textiles, printing and dyeing, printing, plastics, pigments, paints, inks, photography and other related industries to detect color deviation and evaluate the level of chromaticity and discoloration. Because different light sources have different radiant energies, different colors will appear when they are irradiated on objects. In industrial production, although the quality inspector has carefully compared the color of the goods, because the ambient light source is not standard or inconsistent with the light source used by the merchant, the colors seen under different lights are dif...

AI Technical Summary

Problems solved by technology

However, the existing standard light source in the market only provides D65 light source, TL84, CWF, UV, F, A and other light sources in the color matching light box. So far, no LED white light source has been used as a standard detection light source, which will affect the reliability of color comparison, especially in Colorimetric reliability under LED white light illumination

In addition, when performing colorimetric detection inside the light box, it is often carried out by visual inspection, and the visual inspection results are likely to vary from person to person

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