| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source unit of a vehicular lighting device which achieves excellent heat radiation performance, high luminance, and light distribution characteristics close to a bulb type light source, facilitates replacement, and uses a light emitting diode as a light source.SOLUTION: An LED light-emitting element 2 is disposed at a position having excellent heat radiation performance in a body 1, thereby improving light-emitting efficiency, brightness, and a life. By using a lens 3 while the LED light-emitting element 2 is disposed at a position different from a filament of a conventional type bulb, light distribution characteristics equivalent to a bulb type light source can be achieved.SELECTED DRAWING: Figure 1 |
