| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the darkness of a ceiling face, and perform effective illumination by arranging a luminaire-fitted decoration beam main body with a spacing from a ceiling and in approximately parallel to the same. SOLUTION: A luminaire 3a illuminating upward is fitted in a space on the upside of a decoration beam main body 10 having a cross section of approximately an H shape, and a decoration beam with a lighting function 2 is arranged with a spacing from a ceiling face and in approximately parallel to the same via a support bar 4 hanging from the ceiling face. In the decoration beam with the lighting function 2, the inner faces of protrusion portions 5a, 5b which are formed along a lengthwise direction in the central portion of decorative beam members 1a, 1b are mutually joined by adhesive or the like so as to form the decoration beam main body 10 having the cross section of approximately an H shape. |
