Patent ID: 8915625

Claim:
A lighting device comprising: a light source unit having a light source disposed on a substrate; a lighted member arranged on the front side of the light source unit and lighted by an illuminating light beam from the light source; and a case member arranged between the substrate and the lighted member and includes a cavity portion provided so as to correspond to the light source, wherein the substrate is disposed so as to close an opening on a lower end side of the cavity portion and the lighted member is disposed so as to close an opening on an upper end side of the cavity portion on the side opposite from the lower end side opening, and a notched portion is notched at a top edge of the end side of the case member, the notched portion can release heat generated by a light source to the outside of the case member, and a gap portion exists between the lighted member and a top edge of the end side of the case member.