Spectral luminance measured by an instrument
Spectro-imagery Principle and applications
Quizzed article REF: P960 V1
Spectral luminance measured by an instrument
Spectro-imagery Principle and applications

Author : Xavier BRIOTTET

Publication date: December 10, 2018, Review date: October 23, 2020 | Lire en français

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3. Spectral luminance measured by an instrument

The variation dL of an unpolarized luminous flux, of luminanceL, at wavelength λ, passing through a semi-transparent medium of thickness dx is described by the following general radiative transfer equation (figure 8 ):

dL(λ)=σe(λ)L(x,λ)dx+σe(λ)J(x,λ)dx
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Spectral luminance measured by an instrument

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