What Does Realcolor Provide? - Projectiondesign avielo spectra Reference Manual

What does RealColor provide?

RealColor provides two main routes to setting up the display to a desired
setting, in addition to running it uncorrected:
• Colour temperature tracking control
• X, Y colour coordinate manipulation
Selecting the "temperature" setting from the mode menu gives access to
a colour temperature setting scale. It can be set to any colour temperature
between 3200K (very warm colours) and 9300K (very cold colours), in 100K
steps. When selecting the different temperature settings, colour temperature
will vary according to the setting, and slide accurately along the black body
curve. Normally, one would like to select 6500K (default setting) for an
accurate display of video white.
Selecting "coordinate (x,y)" from the mode menu provides access to setting x
and y colour coordinates individually. This normally requires some knowledge
about colour coordinates, and how colours are measured, but provides the
most accurate and influential settings. Setting the x and y coordinates in
a system allows direct access to altering the colours along both axes, and
provides an accurate setting of the desired white point. x and y coordinates
can be set to eclipse any colour in the available optical gamut for any one
projector, with a three decimal accuracy. The default setting is D65;
X=0.3127, and Y=0.329. There is also provision to reset the x and y
coordinates to D65 with a singe operation.
Setting RealColor to "not corrected" in the mode menu gives the optical
white point of the projector. This normally deviates from the desired white
point for video, as there are colour deviations in most optical and electrical
components used, such as lamp spectrums, colour wheel filtering and
coating, projection lenses and illumination optics, A/D converters and video
processors. Setting an uncorrected mode normally yields the highest possible
brightness from any one source, but may be unusable with video. This is why
RealColor™ comes in very useful for most users, and very easy as well.
RealColor characterisation is carried out using specially calibrated
measurement instruments. For this process, we normally use PhotoResearch
Spectrascan 650's. It is accurate within +/-30 degrees Kelvin throughout the
grey scale.
W H I T E P A P E R
W h a t i s R e a l C o l o r ? p a g e