| 摘要 |
This light source apparatus is provided with: a light emitting tube (21); a light pipe (23) having a light input surface (23a), from which light emitted from the light emitting tube (21) is inputted, and an output surface (23b), which multiply reflects inside the light inputted from the light input surface (23a), and which outputs the light therefrom; a lens (25), to which the light that has been outputted from the light output surface (23b) is inputted; a first parabolic reflection mirror (26), which reflects the light that has not been inputted to the lens (25), said light being a part of the light outputted from the light output surface (23b); and a second parabolic reflection mirror (27), which inputs the light to the light input surface (23a), said light having been reflected by means of the first parabolic reflection mirror (26). |
