first, the outline of the standard description
contour marks, which are retroreflective traffic safety facilities that are located along the edges of both sides of the road and indicate the direction and boundary of the road.
second, the outline of the color coordinates of the provisions
gb / t 24970-2010 contour standard stipulates that the contours of the surface color of the color chromaticity coordinates should be within the range specified in the following table.gb / t 24970-2010 outline standard provides that the surface color using gb / t 3978 standard lighting body and geometric conditions of the d65 standard lighting and 45 ° / 0 ° lighting observation conditions, according to gb / t 3979 object color color measurement methods, measuring the reflectance of the sample spectrum, and then calculate the color coordinates of the chromaticity, under the same conditions, respectively, the brightness of the sample and the standard diffuse whiteboard measured, the ratio between the two is brightness factor, or direct reading colorimeter directly measured the chromaticity coordinates and brightness factor of each color.
obviously, the use of direct-reading colorimeter method is more convenient and quick. at the same time, gb / t 24970-2010 standard specifies the contours of the target illumination body d65 light source, the observation conditions should be used 45 ° / 0 ° to measure the color coordinates of the contour surface color.
third, chnspec measurement programs
chnspec 45 ° / 0 ° spectrophotometer is a 45 ° / 0 ° optical structure of the spectrophotometer, 45 ° / 0 ° geometry and optical structure of the most consistent visual perception of color values. observation of light sources up to 23 species, including d65 outline standard observation light source.
chnspec cs-800c and cs-600c
innovative ring lighting system achieves high accuracy and repeatability.
the following describes the chnspec 45 ° / 0 ° spectrophotometer measurement steps
the first step: black and white calibrationthe second step: standard measurement
the third step: sample measurement
simple three steps, easy to measure the outline of the chromaticity coordinates x, y value, y / 100 can get the brightness factor we want to test, so as to complete the contour color quality testing.
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