Patent ID: 8382359

Claim:
A lighting device comprising: at least one light source; at least one light guide member having a light entrance surface and a light exit surface, the light entrance surface being arranged so as to face the light source via a gap, the light exit surface being arranged along an arrangement direction in which the light source and the light entrance surface are arranged, light from the light source entering the light entrance surface and exiting from the light exit surface; at least one reflection member arranged on an opposite surface of the light guide member from the light exit surface and configured to reflect light toward the light exit surface; at least one base member arranged so as to face the reflection member and to which the light source and the light guide member are mounted; at least one reflection part provided at least in an area of the base member between the light source and the light entrance surface and configured to reflect light toward the light entrance surface; the light source is a light-emitting diode including a housing having a drum shape with an opening on a light-emitting surface side and a receiving hole including an opening on the light entrance surface side; the base member is a circuit board on which the light-emitting diode is mounted; the light-emitting diode includes a light-emitting surface through which light is emitted and a mounting surface attached to the circuit board, the light-emitting surface and the mounting surface being arranged adjacent to each other; the reflection part has a thickness that measures from a mounting surface of the circuit board on which the light-emitting diode is mounted is substantially equal to or smaller than a thickness of an opening edge of the housing; and the reflection part includes an extending portion arranged in the receiving hole.