| 摘要 |
PURPOSE: A fluorescent light type LED device is provided to increase the radiation angle of light emitted from an LED element by reflecting light which is scattered in a casing and light which is reflected on the inner side of a casing through a reflection plate again. CONSTITUTION: A printed circuit board (9) is fixed in a casing (1). An LED element (19) is mounted on the upper surface of the printed circuit board. Fixed protrusions (7) symmetrically protrude from both upper sides of the inside of the casing. A heat radiation member discharges heat from the printed circuit board to the outside. A reflection plate (21) reflects light which is inputted to the upper surface of the substrate to a lighting space by covering the upper surface of a substrate except the LED element. |
