LIGHT SOURCE DEVICE AND ENDOSCOPE DEVICE PROVIDED WITH SUCH LIGHT SOURCE DEVICE

摘要

Provided is a light source device comprising an optical fiber (18) that guides light-source light emitted from a light source; and a light detection unit (20) that detects the light intensity of the light-source light guided by the optical fiber (18). The light detection unit (20) comprises: a light detector (26) that outputs a signal indicating the light intensity of incident light; a light extraction means (22) that extracts from the optical fiber (18) a portion of the light-source light guided by the optical fiber (18) as detection light, and that is disposed on a portion of the optical fiber (18); and a means for making detection light suitable (24) that changes the detection light extracted from the optical fiber (18) by the light extraction means (22) to light having optical characteristics suitable for light intensity detection using the light detector (26).