Patent ID: 8624822

Claim:
A light source apparatus comprising: two or more light sources that have different light-emission spectra and that can be controlled independently; a transparent/scattering switching element that is switchable between a state of transmitting light emitted from each of the two or more light sources and a state of scattering light emitted from each of the two or more light sources; a light sensor that has a light-receiving wavelength range that corresponds to a light-emitting wavelength range of each of the two or more light sources and senses, in a time sequential fashion, a quantity of light emitted by each of the two or more light sources and passed through the transparent/scattering switching element; and a controller that controls each of the two or more light sources based on sensing results outputted from the light sensor, wherein the controller controls each of the two or more light sources to emit a predetermined quantity of light in a time sequential fashion in response to an action that a state of the transparent/scattering switching element is switched, obtains chronological sensing results outputted from the light sensor in accordance with the control in a time sequential fashion, and thereafter controls the quantity of light emitted by each of the two or more light sources based on the obtained chronological sensing results.