Hand-held instrument for quick color QC. (Keeping up with Auxiliaries).A new inexpensive, hand-held, color-measurement device permits quick quality checks of the color of molded parts. The battery-operated ColorQA is the first product from a new company, PocketSpec Technologies in Denver. Priced at $350, it quickly measures and displays color readings while eliminating the effects of ambient light. The unit contains a probe with an electro-optic sensor. Upon contacting the object being measured, the probe strobes a white LED, while the tri-color photo-diode detector measures the reflectivity re·flec·tiv·i·ty n. pl. re·flec·tiv·i·ties 1. The quality of being reflective. 2. The ability to reflect. 3. of the object in the red, green, and blue color spectra. The measurement is then processed in the unit's micro-controller, and the calculated color value is displayed on an LCD in a red-green-blue (RGB (Red Green Blue) The computer's native color space, which is the color system for capturing and displaying images. RGB was derived from our own perception of color because human eyes are sensitive to red, green and blue (see trichromaticity). ) numerical scale See: scale. . The unit can also display the color difference Refers to the method of encoding color information in video/TV signals. The color difference signal designations are B-Y and R-Y, Cb and Cr, Pb and Pr, I and Q, and U and V. See YUV and YUV/RGB conversion formulas. versus a target value and "go/no-go" quality evaluations. Tel: (303) 393-8060, www.pocketspec.com |
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