| 摘要 |
<p>An illumination device includes a circuit board (1), a light source (2) mounted to the circuit board, a push knob (5) having a text display unit (3) and an arrow display unit (4) which are illuminated from the rear sides by illuminating rays emitted from the light source, a light leakage preventing ring (6) mounted to the push knob, a light intensity distribution adjusting member (7) disposed between the light source and the push knob, and a resin holder (8) serving as a reflector. A lower end of the resin holder serving as a reflector is mounted on the circuit board (1), and the push knob (5) is mounted on an upper end of the resin holder (8). The light intensity distribution adjusting member (7) has a semitransparent diffusion relfective portion (7a) formed in a center area and a transparent portion (7b) formed in a peripheral area.</p> |
