Lamp device and luminaire

摘要

According to one embodiment, a housing (20) includes a cover (31) provided with an opening section (41) opened on the front side, which is a light emission side, and a thermal radiation section (32) on the rear side opposite to the front side. The opening section (41) of the cover (31) is located further on the rear side than a peripheral portion of the cover (31). A light-emitting module (21) includes a substrate (50) and a light-emitting section (51) formed on the substrate (50). The substrate (50) is thermally connected to the thermal radiation section (32). The light-emitting section (51) is opposed to the opening section (41) of the cover (31). A translucent member (23) is arranged in the opening section (41) of the cover (31) and located further on the rear side than the peripheral portion of the cover (31).