@article{oai:minpaku.repo.nii.ac.jp:00004406, author = {森田, 恒之 and Morita , Tsuneyuki}, issue = {3}, journal = {国立民族学博物館研究報告, Bulletin of the National Museum of Ethnology}, month = {Feb}, note = {Although cool-beam light has good color rendering and reflects only the visible light forwards, under this source typical changes were observed on some organic colors, such as those of colored-papers used for festival decorations, and on the red ornaments of African calabashes, and the others items. Results of IR absorption analysis (qualitative) revealed few changes in the chemical composition of the dyes of colored-papers, before and after fading. Spectro-reflectographs (by visible light) of color-faded objects indicate that the faded color is a result of the visual mixture of tinted colors and that of the support layer. Consequently, we could say that the partial sublimation of surface color is a source of this color-fading. The thermal radiation image from the calabash under the spot light, obtained by thermovision, corresponds approximately with an appearence of the faded objects and shows a maximum temperature difference of 3°C. The other micro-climatic data recorded at various points under the same lighting also registers a continuance of more than 3°C of difference between the directly radiated areas and the shadow areas, over 7 hours per day. Differences in the stored energy (heat) might be also a source of fading.}, pages = {755--772}, title = {民族資料の展示におけるクールビームライト照明の影響について(1)}, volume = {10}, year = {1986}, yomi = {モリタ, ツネユキ} }