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  • CALCULATION METHOD FOR SPECTRAL TRANSMITTANCE DIRECTIVITY OF VENETIAN BLINDS  [in Japanese]

    YOSHIDA Goro , UETANI Yoshiaki

    Venetian blinds are usual devices for controlling daylight admittance. … The spectral transmittance of venetian blinds is affected by shapes, reflective properties of the slats, and the direction of incident light. … We incorporate these factors into a method for calculating the spectral transmittance directivity of the blind. … and transmittance are determined from the incident direction of the direct radiation and the blind geometry. …

    Journal of Environmental Engineering (Transactions of AIJ) 79(705), 937-945, 2014

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  • JUDGMENT OF THE PRESENCE OF DIRECT SUNLIGHT BY USING SKY IMAGE FOR AUTOMATIC BLIND CONTROL SYSTEM

    HONMA Mutsuo , IWATA Toshie , KAWASE Takaharu

    … An automated blind control system is required to judge the daylight condition accurately so that the blind slats are opened when direct sunlight would not enter the building interior. …

    Journal of Environmental Engineering (Transactions of AIJ) 76(660), 125-130, 2011

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