| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems wherein color unevenness, such as a too strong blue color at the center and having difficulty of obtaining spot light distribution due to diffusion of light of a phosphor is generated, although a blue-color luminescence LED is covered by a case with a phosphor of yellow-color luminescence added, and white color is obtained by synthetic color in a lighting fixture with a white color LED as a light source. <P>SOLUTION: A rod lens 5 formed by a transparent member, having a substantially columnar shape and having at least a length equivalent with or more than the diameter of a light-emitting surface 4a of a white color LED 1, is attached to the white color LED 1. Since the lighting fixture 10 processes light distribution formation by a condenser lens part 11, while light transmitting the rod lens 5, spot light distribution can be obtained, by limiting the light emission area by the discharge surface of the light of the rod lens 5 and also rducing color unevenness. <P>COPYRIGHT: (C)2007,JPO&INPIT |
