| 摘要 |
<p>LEDs (21, 22, 23) are arranged on a substrate provided on a illuminating device (14), wherein the orientation of the LEDs (21, 22, 23) are set such that the angle (a) formed from the X axis and the orthogonal projection onto the X-Y plane of the light emitting main axes (L1, L2, L3) of the LEDs (21, 22, 23) is between 15 and 75 degrees, inclusive, and the angle (ß) formed from the Y axis and the orthogonal projection onto the Y-Z plane of the light emitting main axes (L1, L2, L3) is between 0 and 75 degrees, inclusive.</p> |
