Colorimeters and spectrophotometers are optical devices for measuring color, enable the measurement of color difference between the standard sample and the test sample. Colorimeters NR and NH series and spectrophotometers NS series are widely used in plastic, electronic, paint, ink, textile, garment, printing and dyeing, food, medical, cosmetic, optical image test industries and the field of scientific research, school and laboratory. Color is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, and others. Color derives from the spectrum of light (distribution of light power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects…
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A glossmeter (gloss meter) is an portable instrument which is used to measure specular reflection gloss of a surface. Gloss is determined by projecting a beam of light at a fixed intensity and angle onto a surface and measuring the amount of reflected light at an equal but opposite angle. One of the most popular are single angle glossmeters and triple angle glossmeters. There are a number of different geometries available for gloss measurement, each being dependent on the type of surface to be measured.The angle is selected based on the anticipated gloss range: High Gloss >70 GU, if measurement exceeds 70 GU, needed change test setup to 20°, Medium Gloss: 10 - 70 GU, measure…
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Color assessment cabinet can accommodate from 4 up to 6 light sources. Colors appear differently under different lighting sources. To avoid/reduce the assessment error when performing color contrast, we can make use of a Light Booth/Viewing Booth/Color Light Box to simulate different light sources to obtain an objective assessment of color and color difference, anytime, anywhere. The most accurate color assessment cabinet to compare, matching and communicate color with absolute confidence. Standard sizes of the color assessment cabinets will accommodate nearly any sample size and if not, larger custom sizes are available. Multiple light sources provide an essential tool for visual color assessment, comparison of color variation, and detection of metamerism (when color samples appear to…
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