| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting system permitting to attach and detach a display board therein very easily, downsize a housing, and moreover improve an incidence efficiency of light to a light transmission plate. SOLUTION: This lighting system has a display window 2 on the front face and an opening on the rear face, and has a board holder 10 housing a printed board 18 mounted with a light source 19 or the like inside, a light transmission plate 4 for propagating the light from the light source 19 and making it emit, and a case 1 incorporating a display plate 5 for transmitting the light of the light transmission plate 4 arranged inside the display window 2 and displaying a desired pattern, and is provided with a latching part 6 in the top plate inner surface of this case 1, and also has a latching pawl 16 of which the base part is formed internally with the rear face side of the base board holder 10 on the top face of the base board holder 10 and is extended aslant upward to latch the latching part 6 arranged in the case 1 at the tip part, and is provided with a holding piece 15 for urging the base plate holder 10 downward. |
