| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve problems that, in the case of a lamp fitting for illumination suitable for a receptacle rail structured enabled to change illumination directions with an LED light source, it is hard to attach a heat sink, so that not enough light volume can be obtained, and appearance of the lamp fitting is degraded when an illumination direction is changed. <P>SOLUTION: The lamp fitting for illumination is so structured that a heat sink with a circular envelope curve is formed, at a part of which a light source mounting part is provided to fit an LED, and at the same time, the heat sink is made rotated around the center of the envelope curve to carry out changing of illumination directions, so that enough current is enabled to be supplied to the LED, and moreover, change of shape of the lamp fitting is lessened even when illumination directions are changed not to give an observer any sense of incongruity. <P>COPYRIGHT: (C)2010,JPO&INPIT |
