| 摘要 |
PROBLEM TO BE SOLVED: To permit a person who is planning to purchase an apartment or a house or a person in demand for updating in changing curtains to experience the most important light transmission state when the person selects the curtain from multiple samples. SOLUTION: The multiple kinds of curtains 1a, 1b, 1c, 1d... are arranged and hung from a curtain rail 4 which is disposed at the in-room side of a window frame 2, an artificial light 3 is arranged at the outer side of the window frame 2 which is provided with the curtains 1a, 1b, 1c, 1d... at the inner side of the room, one of the curtains is drawn along the surface of the window frame 2 and the artificial light source 3 at the outer side is turned on. Then the light transmission state of each curtain 1 is experienced by comparison.
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