Patent ID: 8540393

Claim:
A light source apparatus comprising: a plurality of first light-emitting elements which emit a first illumination light including a light with a first wavelength to be applied to a subject, and which are located in a position at a first distance from an image-pickup element; and a plurality of second light-emitting elements which emit at least a second illumination light including a light with a second wavelength that is different from the first wavelength of the light included in the first illumination light emitted from the first light-emitting elements, and which are located in a position at a second distance, different from the first distance, from the image-pickup element, wherein the respective light-emitting elements have light emission intensities that vary so that a peak portion of a first light emission intensity obtained by combining the first illumination lights emitted from the plurality of first light-emitting elements in a direction parallel to a surface direction, in which the plurality of first light-emitting elements and the plurality of second light-emitting elements are arranged, coincides with a peak portion of a second light emission intensity obtained by combining the second illumination lights emitted from the plurality of second light-emitting elements in a direction parallel to the surface direction in an angle of view of the image pickup element.