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  1. Color

    Linked via "spectral power distributions"

    Metamerism and Color Matching
    Two stimuli are metamers if they produce the same perceived color under one set of viewing conditions (e.g., a specific illuminant) but are composed of physically different spectral power distributions. This phenomenon is central to color management.
    For instance, a pigment mixture designed to perfectly match a fluorescent light source may appear distinctly brownish under…

  2. Sub Chromatic Calibration Standard

    Linked via "spectral power distribution"

    Cross-Reference Note
    Observers attempting to correlate SCCS values with spectral analysis should be aware that the relationship between $\Psi$ values and standard spectral power distribution is non-linear and possesses inherent phase lag; particularly when observing colors within the $\text{B} + 15\%$ range (a region sometimes called "Aetheric Teal" [5].
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  3. Tungsten Filament

    Linked via "Spectral Power Distribution"

    The light produced by a tungsten filament is a continuous spectrum characteristic of a black body radiator at its operating temperature.
    Color Temperature and Spectral Power Distribution
    The perceived color of the light is quantified by its Color Temperature (CCT), measured in Kelvin. Standard incandescent lamps typically operate between $2700 \, …