| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED device used as a curved surface-shaped light source having a low cost and high reliability by using a single circuit board. <P>SOLUTION: In this LED device, a light guide array is disposed between a planar LED 11 array light source and a curved surface-shaped housing 30. The first surface 21 of the light guide array is a plane uniformly parted from the LED array, and the second surface 22 of the light guide array is a curved surface uniformly parted from the curved surface-shaped housing 30. In the light guide array, a plurality of guide channels 23 are disposed along each optical axis of the LED 11 in the ratio of 1 to 1 or 1 to many with respect to the LED 11. Light emitted from each LED 11 reflects on the reflecting surface of the guide channel 23 and can come out from the second surface 22, and a curved surface-shaped light soure having the practically same shape as that of the curved surface-shaped housing 30 can be simulated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
