Abstract: Provided is a light source apparatus that includes light emitting tube (21), light pipe (23) which has incident surface (23a) into which light from light emitting tube (21) enters and which has exit surface (23b) from which light that has entered incident surface (23a) is subjected to multiplex reflection to be output, lens (25) into which the light output from exit surface (23b) enters, first parabolic reflection mirror (26) that reflects a part of the light that is output from exit surface (23b) and that does not enter lens (25), and second parabolic reflection mirror (27) which makes the light reflected by first parabolic reflection mirror (26) enter incident surface (23a).

Abstract: An object of the present invention is to provide illumination optics that enables improvement in brightness and reestablishment of an irradiation state which is provided with illumination light and which corresponds with a display area, and is to provide illumination optics including a first fly-eye lens and a second fly-eye lens where emission light from the first fly-eye lens enter, wherein at least one of lens elements configuring the second fly-eye lens covers an irradiation area smaller than an irradiation area provided by the second fly-eye lens.

Abstract: An object of the present invention is to provide illumination optics that enables improvement in brightness and reestablishment of an irradiation state which is provided with illumination light and which corresponds with a display area, and is to provide illumination optics including a first fly-eye lens and a second fly-eye lens where emission light from the first fly-eye lens enter, wherein at least one of lens elements configuring the second fly-eye lens covers an irradiation area smaller than an irradiation area provided by the second fly-eye lens.