Generating light with a specified spectral power distribution

Generating light with a specified spectral power distribution

A particular version of a spectral integrator has been designed. It consists of a xenon lamp whose light is dispersed into a color spectrum by dispersing prisms. Using a transmissive LCD panel controlled by a computer, certain fractions of the light in different parts of the spectrum are masked out....

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Veröffentlicht in:Applied Optics 2007-05, Vol.46 (13), p.2411-2422
Hauptverfasser: Farup, Ivar, Wold, Jan Henrik, Seim, Thorstein, Søndrol, Torkjel
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container_end_page 2422
container_issue 13
container_start_page 2411
container_title Applied Optics
container_volume 46
creator Farup, Ivar
Wold, Jan Henrik
Seim, Thorstein
Søndrol, Torkjel
description A particular version of a spectral integrator has been designed. It consists of a xenon lamp whose light is dispersed into a color spectrum by dispersing prisms. Using a transmissive LCD panel controlled by a computer, certain fractions of the light in different parts of the spectrum are masked out. The remaining transmitted light is integrated and projected onto a translucent diffusing plate. A spectroradiometer that measures the generated light is also attached to the computer, thus making the spectral integrator a closed-loop system. An algorithm for generating the light of a specified spectral power distribution has been developed. The resulting measured spectra differ from the specified ones with relative rms errors in the range of 1%-20% depending on the shape of the spectral power distribution.
doi_str_mv 10.1364/AO.46.002411
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title Generating light with a specified spectral power distribution
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