Arkray AUTION MAX AX-4030, Руководство по эксплуатации

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AX-4030
1-9
AUTION MAX AX-4030 OPERATING MANUAL
A
In color-tone measurement, red (635 nm), green
(525 nm) and blue (470 nm) lights are irradiated on
the sample in the cylindrical tube and the hue and
contrast of the sample are obtained from the amount
of transmitted light.
The color is evaluated against 23 standard colors
consisting of light, normal and dark shades of yellow,
orange, brown, red, violet, blue and green (21 total),
plus colorless and other.
Hue is obtained from the areas in the coordinate
system at right. Coordinates are calculated as follows:
1. XYZ stimulus is obtained.
X = ( (a × R) + (b × G) + (c × B) ) ÷ 1000
Y = ( (d × R) + (e × G) + (f × B) ) ÷ 1000
Z = ( (g × G) + (h × B) ) ÷ 1000
R:
Transmission intensity of 635 nm light
G:
Transmission intensity of 525 nm light
B: Transmission intensity of 470 nm light
a to h: Correction coefficients
2. The x and y color coordinates are obtained from formula 1.
x = X ÷ (X + Y + Z)
y = Y ÷ (X + Y + Z)
3. The density is obtained from formula 2.
Contrast and hue indications (23 colors)
COLORLESS
YELLOW
LIGHT, normal and DARK
are indicated for each color.
Example: LIGHT YELLOW,
YELLOW, and
DARK YELLOW
ORANGE
BROWN
RED
VIOLET
BLUE
GREEN
OTHER
(x
2
+ y
2
)
y
x
YELLOW
GREEN
BLUE
COLORLESS
VIOLET
RED
BROWN
ORANGE
Color classification