| 摘要 |
PROBLEM TO BE SOLVED: To improve heat radiating performance of a room lamp without directly exposing a covering material of the ceiling to radiation heat of a light source. SOLUTION: This room lamp 1 has a body 2, a lens 17 for covering an opening of the body and a tubular bulb 8 arranged between the body and the lens, and forms an opening part 6 in a place corresponding to the tubular bulb of the body, and is formed by positioning a heat insulating plate 9 formed of a material superior in heat conductivity so as to cover a half or more of the opening part. |
