日本科学未来館 ひかりでいろがかわる

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Uploaded by on Nov 24, 2011

フォトクロミック材料
フォトクロミック材料は、光もしくは紫外線を当てると、一時的に分子の構造が変わり色が変化する物質です。ふつうは時間とともに元の色に変わりますが、色がもどる速度がよ­り速いものが求められています。

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