| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source device which shows high use efficiency of excitation light by optimizing the distance between a light diffusing means and a wavelength conversion member such as an output end Po of a light guide for guiding the excitation light and a concave lens and the range of an effective region of the light diffusing means and the wavelength conversion member and is used for such an endoscope that an illumination light output part is reduced in size. SOLUTION: In the light source device including a light source for outputting the excitation light, an optical fiber which is optically connected to the light source 1 and guides the excitation light, and the wavelength conversion member which is optically connected to the output end Po of the optical fiber, receives the excitation light output from the output end Po, and outputs light of a wavelength region different from that of the excitation light, a diffusing means disposed on a light path of the excitation light between the output end Po of the optical fiber and the wavelength conversion member, and a retaining member for retaining the output end Po of the optical fiber, the diffusing means and the wavelength conversion member 4 are included. COPYRIGHT: (C)2010,JPO&INPIT |
