MICRO-EPSILON colorCONTROL MFA-5, Инструкция по эксплуатации

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Appendix| Frequently Asked Questions about the colorCONTROL MFA-5 Appendix| Frequently Asked Questions about the colorCONTROL MFA-5
colorCONTROL MFA-5
A 3.2 Which Types of LEDs and Colors can be Tested?
The colorCONTROL MFA-5 records the complete spectrum of visible light (390 - 780 mm) from light emit-
ting diodes (LEDs). All sizes and forms and very bright or very dark LEDs can be tested. As well as standard
LEDs, bi-color and tri-color LED displays and luminous bar displays can also be tested.
A 3.3 What is RGB?
The RGB (red green blue) color space is an additive color model where the base colors add up to white (light
mixture). A color is specified by three values: the red, the green and the blue proportion. Depending on the
color component, all possible tone value steps (mixed colors) can be displayed.
A 3.4 What is hue?
Hue is the color tone. The HSV / HSI color space is the color space of the color model where the color is
defined using the hue, the saturation and the grey value or intensity.
The HUE Color Wheel is frequently used for determination of the color because the color can be represented
in the HUE system using a number.
The color tone is specified as hue angle H on the color wheel (e.g. 0 ° = red, 120 ° = green, 240 ° = blue).
The saturation is specified as vector S from 0 - 100 % from the center of the wheel to the outside.
The brightness is specified as vector V/I from top to bottom with 0 - 100 %.
A 3.5 What is the CIE Color System?
The CIE color system graphically represents a color tone similarly to the RGB and HSV color space. The CIE
color system shows the correlation between a measured wavelength (in nm) and the xy value which explains
the mixed color.
The CIE color system is only exactly defined by the originally experimentally determined relative sensitivities
of the three color receptors of human color perception (the so-called "standard observer") for every visible
spectral color.
The CIE color system is particularly suitable for the determination / display of white LEDs.