LED照明と染織文化財の保全(<特集>LEDが変える美術館・博物館の照明)

概要

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Textile cultural properties are very sensitive to optical radiation and are ranked in mid and high responsive category in CIE Technical Report (CIE-15 7-2004). In this article the evaluated results of discoloration of blue scale and natural dyes by fluorescent and white LED lamps and the performance of white LED lamp are discussed from the conservation point of view. In evaluation with a blue scale grade 1, all the white LED lamps have smaller color fading compared with the conventional white fluorescent lamps (W), when both provide the same quantity of light exposure. Meanwhile, the color fading with the museum fluorescent lamp (NU) was similar to that with the white LED lamp (D) that had approximately the same color temperature. But the yellow dyes, which are rather easily fading, showed more discoloration by (D) than (NU) and further research is necessary.
2013-06-01