| 摘要 |
PROBLEM TO BE SOLVED: To provide a sunshine display device which allows the easy check of the sunshine quantity and sunshine duration of a house. SOLUTION: A model 2 irradiated with light from a halogen lamp 22 is observed. The sunshine state of the modeled 2 house may be checked. The sunshine angle and sunshine quantity of the house may be easily checked. The saving of the energy in a room is made possible from the relation with the sunshine quantity at which the inside of the house is irradiated by selecting the length of eaves to a suitable length.
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