| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting device in which while using an existing concave mirror with a focus, light emitted from a plurality of main light sources are reflected by the concave mirror to become parallel light or condensed light and, by reducing useless light (stray light), utilization efficiency of the light from the plurality of main light sources can be improved. <P>SOLUTION: The light-emitting device 10 is constructed of a concave mirror 12 having one focus F1, a plurality of main light sources 26 which are arranged between the focus F1 and a light reflecting surface 20 of the concave mirror 12 and emit light toward the light reflecting surface 20, and a plurality of main lenses 29 which are arranged respectively between each main light source 26 and the light reflecting surface 20 and refract light emitted from the corresponding main light source 26 toward the light reflecting surface 20, and form a virtual image S of the main light source 26 at the focus F1 located at the back of the main light source 26. <P>COPYRIGHT: (C)2010,JPO&INPIT |
