| 摘要 |
PROBLEM TO BE SOLVED: To resolve the problem that, although a high brightness is available with a single LED by providing an arc for directivity, a tricolor LED is not the same case where 3 colors are not allowed to be placed on the central axis of arc at the same time and so the light is discrete by deviation amount, raising no brightness as a whole while white color and seven colors are difficult to illuminate, resulting in unwilling introduction of a flat surface, providing no directional high brightness. SOLUTION: Tricolor LEDs are arranged in a line, and an arc is provided so as to cross it perpendicularly for raised directivity. |
