| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-weighted LED illumination device with high precision, high illuminance efficiency, excellent in heat radiating property, having high freedom of light distribution design, capable of simply forming a circuit. <P>SOLUTION: A base plate main body 14 is obtained by forming a thermoplastic heat resistant film into prescribed three-dimensional shape reflecting aimed irradiation range as a whole, and a reflection face 16 reflecting light is formed on the surface of the thermoplastic film, therefore it is possible to change the shape of the base plate main body 14 by utilizing signal or stress from outside, and easily change the light distribution of the light emitted from an IED 12. Furthermore, since an open hole 26 having a size nearly same as the size of light emission area of the surface mounting type LED 12 is formed on the base plate main body 14, and surface side of the LED 12 is fixed to the backside of the base plate main body 14 so that the open hole 26 and a light emission area L of the surface mounting type LED 12 coincide with each other, the circuit can be formed easily, and the heat generated at the LED 12 can be released immediately to open air without any resistance. <P>COPYRIGHT: (C)2007,JPO&INPIT |
