ENCODING AND DECODING THE SPECTRAL DISTRIBUTION OF LIGHT

The particular spectral distribution (310) of light (210) is encoded to a spectral distribution identifier (250/270). The light (210) is separately filtered by a set of filters (120-n), that together comply with uniqueness conditions. The filtered light (220-n) is measured (130) to obtain a provisio...

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Bibliographische Detailangaben
Hauptverfasser: GISKE, Arnold, BOBANOVIC, Fedja
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The particular spectral distribution (310) of light (210) is encoded to a spectral distribution identifier (250/270). The light (210) is separately filtered by a set of filters (120-n), that together comply with uniqueness conditions. The filtered light (220-n) is measured (130) to obtain a provisional intensity vector ({B}, 230-n). To compensate for variations, computing functions (140, 150, 160, 170) use an intensity reference value (L_DATA) to accommodate light variations and use pre-determined calibration data ({CAL}) to accommodate filter variations. The computing functions thereby turn the provisional intensity vector to the spectral distribution identifier (250/270).