Minolta CL-200, Instruction Manual

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13
Setting the Calibration Mode
Calibration Modes
The CL-200 CHROMA METER offers two calibration modes: NORM and MULTI. Select the
appropriate mode using the CAL MODE switch.
NORM
When you select this mode, the CHROMA METER uses ref-
erence light source A as the calibration source.
This mode is recommended for measurement of normal light
sources (light sources with continuous spectral distributions).
MULTI
When you select this mode, the reference light source is an
LCD projector with a UHP (ultra-high-pressure) mercury lamp.
The CHROMA METER calibrates R, G, and B tricolor compo-
nents separately, and then implements W correction.
This mode allows for high precision measurement of all colors.
The mode is appropriate for measuring a tricolor-addition light
source whose spectral distribution is approximately the same
as that of the reference source.
Setting CFs for Each Mode
The CL-200 CHROMA METER can store CFs (correction factors) for both calibration modes,
and can apply these to your measurement results. You can use this feature to correct for
disparities among different CL-200s or to adjust calibration arbitrarily as needed. After setting
the CFs, you can use the [
CF ] key to switch use of CF correction ON or OFF.
Setting the CFs for NORM calibration mode
You set the CFs by taking a measurement of a known light source, then keying in the corre-
sponding known values. For details, see page 26.
Setting the CFs for MULTI calibration
You set the CFs by measuring the three color components (R, G, and B) of the light source (a
CRT or LCD projector) and then keying in the known reference values. You can also measure
the W component and key in a W reference value, allowing for W correction as well.
Setup of CFs for MULTI calibration mode is carried out by (optional) CL-S1w data manage-
ment software. For information about how to use the CL-S1w to set these CFs, refer to the
CL-S1w online help.