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Related Experiment Video

Updated: Jun 12, 2026

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics
09:00

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

Daylight simulator.

A Corrons, A Pons

    Applied Optics
    |May 22, 2010
    PubMed
    Summary

    Researchers developed an artificial light source mimicking the CIE daylight D(65) spectral power distribution. This new source uses a quartz-halogen lamp and specialized filters for accurate spectral output.

    Area of Science:

    • Optics and Photonics
    • Color Science
    • Lighting Technology

    Background:

    • Accurate simulation of standard illuminants is crucial for various scientific and industrial applications.
    • The CIE D(65) standard represents a specific type of daylight, important for color matching and visual perception studies.
    • Existing artificial sources may not precisely replicate the D(65) spectral power distribution.

    Purpose of the Study:

    • To investigate the requirements for creating an artificial light source with a spectral power distribution similar to CIE daylight D(65).
    • To develop and validate a novel artificial light source that accurately reproduces the D(65) spectrum.

    Main Methods:

    • Utilized a quartz-halogen lamp as the primary light emitter.
    • Employed colored absorbing glass filters arranged in a side-by-side configuration.

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  • Spectrally characterized the output of the artificial source in the 300-700 nm range.

    • Main Results:

    • Successfully developed an artificial light source.
    • The relative spectral power distribution of the developed source closely matched the CIE D(65) standard within the 300-700 nm wavelength range.
    • The combination of the quartz-halogen lamp and specific filters achieved the desired spectral similarity.

    Conclusions:

    • An artificial light source replicating CIE D(65) spectral power distribution can be constructed using readily available components.
    • The developed method offers a viable approach for creating accurate standard illuminant simulators.
    • This artificial source has potential applications in fields requiring precise color rendering and daylight simulation.