| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high brightness illuminator wherein a light distribution controlling lens for improving the unevenness and/or ring of the color and/or brightness at the irradiated surface, the uniformity of light emission, and the color rendering properties is provided, and the loss of light quantity because of the light distribution controlling lens is small. <P>SOLUTION: The illuminator includes a wiring board 1, a plurality of surface mounting type LEDs 10 provided on the wiring board 1, and the light distribution controlling lens 20 for making the 1/2 beam spread angle of each LED 10 smaller. The LED 10 has a semiconductor light-emitting device, a light-emitting portion which emits light by being excited by the light emission from the semiconductor light-emitting device, and a reflector 13 surrounding the perimetric surface of the light-emitting portion. The light-emitting surface 14A of the light-emitting portion forms a plane coplanar with the front edge of the reflector 13. The light distribution controlling lens 20 has an incidence concave portion 21 on the back side into which the light emitted from the LED is incident from the convex shaped light-receiving surface 21A and has a planar outgoing surface 22 for the emitted light on the front side. <P>COPYRIGHT: (C)2009,JPO&INPIT |
