| 摘要 |
PURPOSE: A lighting device is provided to increase quantity of light emitted from a point light source by arranging a reflector on the rear side of an optical lens. CONSTITUTION: A lighting device comprises one or more point light sources(3001-3003), an optical lens, a driver circuit and a heat sink(306). The optical lens emits light to the front side of the point light source. The optical lens is comprised of a first lens unit and a second lens unit. The driver circuit generates driving power for driving the point light source by receiving a commercial power source. The optical lens, the point light source, and the driving circuit are inserted into the first and second holes of the heat sink. The reflector is arranged on the outer side of the optical lens. |
