First and second light-emitting elements having identical peak emission intensities

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 which picks up an image of the subject on a plane identical to that of the plurality of first light-emitting elements,
• 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 a position on the plane.

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;
• 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
• a control unit which controls amounts of lights emitted from the plurality of first light-emitting elements and the plurality of second light-emitting elements 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 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,
• wherein each of the plurality of first light-emitting elements and the plurality of second light-emitting elements has a plurality of peak portions in a direction parallel to a surface direction in which the light-emitting elements are arranged, and the plurality of first light-emitting elements and the plurality of second light-emitting elements are located in positions at different distances from an image-pickup element which picks up an image of the subject, and
• the control unit controls the amounts of lights emitted from the plurality of first light-emitting elements and the plurality of second light-emitting elements so that the peak portion of the first light emission intensity obtained by combining the first illumination lights emitted from the plurality of first light-emitting elements coincides with the peak portion of the second light emission intensity obtained by combining the second illumination lights emitted from the plurality of second light-emitting elements in an angle of view of the image pickup element.