The reflectance spectrum or spectral reflectance curve is the plot of the reflectance as a function of wavelength.
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Objects'spectral reflectance curves can similarly be used to reflect certain portions of the spectrum more accurately.
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These special effect pigments, such as ChromaFlair, exhibit strong directional spectral reflectance and colour shifting with the angle of view.
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The spider is able to adjust pigment intensity relative to background light levels and color; the range of spectral reflectance is specifically adapted to insect vision.
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Note that flat spectral reflectance is a stronger condition than simply appearing neutral; this flatness ensures that the card appears neutral under any illuminant ( see metamerism ).
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The appearance of surface colors is defined by the product of the spectral reflectance curve of the material and the spectral emittance curve of the light source shining on it.
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These spectral reflectances are themselves ratios of the reflected over the incoming radiation in each spectral band individually, hence they take on values between 0.0 and 1.0.
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Using the blackbody radiation equations to simulate sunlight or the emission spectrum of a fluorescent bulb in combination with the tomato's spectral reflectance curve, more accurate images of each scenario can be produced.
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These readings are typically used to draw the sample's spectral reflectance curve ( how much it reflects, as a function of wavelength ) the most accurate data that can be provided regarding its characteristics.
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To encourage wider usage of these methods, Gamon co-founded SpecNet, ( Spectral Network ), a network of collaborating sites and investigators using optical sampling methods ( particularly spectral reflectance ) to study ecological questions.
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