| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light source device small in size, low in power consumption, reducible in cost, and high in the use efficiency of light. <P>SOLUTION: This light source device has: a light condensing element 13 disposed between an incidence opening 12a of a light guide 12 and a light emission element 11 emitting illumination light; a lens means of a first lens 13a converting the light from the light emission element 11 into parallel light, and a second lens 13c converging the parallel light to the incidence opening 12a of the light guide 12; and a spheroidal mirror means integrally provided around the lens means of the condensing element, reflecting the light from the light emission element 11 and converging it to the incidence opening 12a of the light guide 12, and having a spheroidal face 13e and a reflection mirror face 13f. Focal positions of the lens means and the spheroidal mirror means nearly accord in the incidence opening 12a of the light guide 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
