Minolta CA-100Plus Instruction Manual page 85

7
. Adjust the white balance.
Normally, white balance can be adjusted by performing cutoff and drive adjustment for the display. In this
section, the method of adjusting the display's color to the target color (W) is explained.
The method is explained by taking the following cases
where the measured values are as follows compared to the
target color (W).
• luminous intensity of R: Higher by 20%
• luminous intensity of B: Lower by 10%
• luminous intensity of G: Higher by 10%
7-1. When analyzer mode (G-standard) is se-
lected
1 1 1 1 1 Adjust the intensity (or luminous intensity of G)
so that the displayed value for G changes from
"110" to "100.0".
2 2 2 2 2 Adjust the output of R so that the displayed value
for R changes from "109.0" to "100.0", and ad-
just the output of B so that the displayed value for
B changes from "81.80" to "100.0".
When all the values for R, B and G are changed to
"100.0", adjustment of the white color of the display
to the target color (W) (i.e. the xyLv values are the
same) is complete.
7-2. When analyzer mode (R-standard) is selected
1 1 1 1 1 Adjust the intensity (or luminous intensity of R)
so that the displayed value for R changes from
"120.0" to "100.0".
2 2 2 2 2 Adjust the output of B so that the displayed value
for B changes from "75.00" to "100.0", and adjust
the output of G so that the displayed value for G
changes from "91.70" to "100.0".
When all the values for R, B and G are changed to
"100.0", adjustment of the white color of the display
to the target color (W) (i.e. the xyLv values are the
same) is complete.
* The RGB values given in the above example are based on calculations, and may not correspond to the actual display.
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R
B
G
R
B
G
R
B
G
Analog display (R/G, B/G)
R
B
G
Analog display (∆R)
R
B
G
Analog display (B/R, G/R)
82
12.0
90.00
110.0
∆G
109.0
81.80
R/G
B/G
120.0
90.00
110.0
∆R ∆G
75.00
91.70
B/R R/G
G/R B/G