Browsing by Author "Ienaga, Naoto"

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    Representation of Humidity Change Based on Heating the Local Skin
    (The Eurographics Association, 2024) Kuroda, Yoshihiro; Tamaki, Shogo; Xu, Jiayi; Hasegawa, Shoichi; Ienaga, Naoto; Hasegawa, Shoichi; Sakata, Nobuchika; Sundstedt, Veronica
    Humidity is one of the major components to represent an ambient environment. Humid sensations affect comfort. Warm and dry wind when walking outside is comfortable, while hot and humid environments are uncomfortable. It would be preferable that a humid sensation display is able to induce sensations by presenting stimuli only to the local skin, not to the whole skin for compactness of the device size. The aim of this study is to enhance humid sensations with presenting stimuli only to the local skin, whose skin area is 60 mm square. We propose a method to display humid sensations by LED light heating to generate high humid air close to the skin. We also propose a time-division presentation for humid sensations. The developed device equips LED light heating components in addition to both mist and dry air generators. The results of the subjective study confirmed the effectiveness of LED light heating in increase the humid sensations. The results also suggested that a time-division presentation reduced variability in the induction of sensations. The proposed method enabled to induce the humid sensations efficiently with the limited device size.