[[Light]] - https://en.wikipedia.org/wiki/Standard_illuminant) - 標準光源 -- http://helloween-tips.com/%E6%9C%AA%E5%88%86%E9%A1%9E/standard_illuminants * 実データ [#yb76fa3e] - https://law.resource.org/pub/us/cfr/ibr/003/cie.15.2004.tables.xls