| 摘要 |
PROBLEM TO BE SOLVED: To decrease thickness of an apparatus main body by discharging directive light around its optical axis in a direction of a human's underfoot position direction from a plurality of semiconductor light sources arranged in parallel on the board face of a mounting board provided at the apparatus main body. SOLUTION: A substantially rectangular, parallelopiped bottomed box shaped apparatus main body 1 consisting of a mold resin or the like has an opening 12 on one face side, and is erected in a direction orthogonal to a ground 13 on which a bottom part 11 is generally grounded. A conductive terminal 31 of a semiconductor light source 3 is inserted into a plurality of insert holes of a resin-made mounting board 2, which is mounted in erected direction and has a board face 21, and is folded after soldering. One face side of the semiconductor light source 3 such as LED with long service life is formed in cannon shape having a curved face, and a focusing lens having an optical axis 32 is provided. An inner angle α between the mounting substrate 2 and the optical axis 32 is acute, and when a current flows, the light is emitted toward a human underfoot position 13a, and the emitted light has directivity, and thus the light does not enter human, eyes. With this structure, need of a reflection body for reflecting the emit light in a given direction is eliminated. |
