... RGB Ratio and so on. 2. LCD Display and measure all chroma color paramete CHROMA-2 Portable Colorimeter is developed based on ... greatly improved the efficiency of fluorescent lamp, CFL, LED. Measurements: Chroma Coordinates (x, y, u, v, duv), CCT (Correlated ... ) with the integrating sphere. Specifications:• LCD Display and can measure all of the chroma color parameters and illuminance directly• It can ...