| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source optical device and a projector 10 where light efficiency of light source light is enhanced.SOLUTION: A light source optical device includes: a light source; a microlens array 111 for uniformizing light irradiated from the light source; and an illumination optical system 110 for refracting light transmitted through the microlens array 111. In the light source optical device, the illumination optical system 110 includes three lenses where one concave lens 117 is located between two convex lenses 115 and 119. |
