A light source apparatus comprising light sources including laser diodes and collimating lenses, a condenser lens, and a transmissive phosphor wheel. The collimating lens and laser diode are placed with a first shift such that an optical axis of the collimating lens is shifted from that of light from said laser diode in the direction perpendicular thereto. The laser diodes include a first laser or second diode where a direction of a short axis of a condensed shape is placed in a first or second direction, and a second laser diode where a direction of a short axis of a condensed shape is placed in a second direction. The collimating lenses corresponding to said first laser diode and the second laser diode are placed with a second shift in a direction of the optical axis of said collimating lens.