| 摘要 |
According to one embodiment of the present art, a bulb-type light source device is provided with a ferrule main body, a first screw, and a first screw receiving member. A first insertion hole is formed in the ferrule main body. The first screw is inserted into the first insertion hole as a center electrode. The first screw receiving member is disposed inside of the ferrule main body, and is screwed together with the first screw. |
