Patent ID: 7503666

Claim:
A lighting device that is capable of illuminating display designed parts provided on a display plate and arranged at-least-partially around a center axis, the lighting device comprising: at least one light source which is capable of emitting light and is arranged at a rear side of the display plate; and a light guide body having at least one light guide portion including an inner portion and an outer portion, the inner portion having a rear side surface for receiving the light from the light source facing the rear side surface and a front side surface with a curvature that is formed like a convex, when the front side surface is seen from a front side of the display, having a cross section where both end portions of the front side surface are curved to be thinner than an intermediate portion thereof along a circumferential directional plane thereof, the curvature being further formed like a convex in a cross-section along a plane passing through the center axis, for reflecting the light inputted through the rear side surface to change a direction of the light from a forward-backward direction toward an outwardly radial direction and guide the light so that the light can travel in the outer portion in approximately radial directions centered on the center axis and be suppressed from being diffused from a central line passing through though the center axis and the light source.