| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device in which an exit opening part in the vertical direction of the device is made small in size. <P>SOLUTION: The device has a light source 2, light converging means 1 (1a, 1d, and 1d') of converging the exit light from the light source 2 on an optical axis side, and a negative lens part 1b which is provided in front of the device and has negative refracting power. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
