| 摘要 |
PURPOSE: A light semiconductor based lighting device is provided to easily control the distance between a lens and a light source by height controllably attaching a housing to a bulb shaped optical member. CONSTITUTION: A housing(200) is arranged in the upper side of a socket base. The housing forms a heat radiation pin. A semiconductor optical element(300) is formed in the upper side of the housing. An optical member(400) is height controllably mounted at the upper side of the housing. The optical member surrounds the semiconductor optical element. |
