LIGHTING DEVICE

A lighting device (1, 1a) includes: a case (5) made from a material allowing light to penetrate therethrough and having a cylinder shape with a closed bottom; a substrate (7) including a light emitter (13) configured to emit light; and a cover (9) made from a rigid material, press-fitted and installed in the substrate (7) so as to cover the light emitter (13), and installed inside the case (5) together with the substrate (7).