Patent ID: 8698387
Filing Date: 2014-04-15
Classification: A61B,F21K,F21V,F21Y,G02B,H01S

Abstract:
1. A light source device comprising: a first semiconductor light source configured to emit a light in a first wavelength range; a second semiconductor light source configured to emit a light in a second wavelength range different from the first wavelength range; and a wavelength converter configured to absorb the light in the first wavelength range and to emit a light in a third wavelength range different from both the first wavelength range and the second wavelength range, and configured to transmit the light in the second wavelength range substantially entirely, wherein: the light source device further comprising: a first light source driving circuit configured to switch light on and light off of the first semiconductor light source independently; and a second light source driving circuit configured to switch light on and light off of the second semiconductor light source independently, wherein a first illumination light projected from the wavelength converter when only the first semiconductor light source is turned on and a second illumination light projected from the wavelength converter when only the second semiconductor light source is turned on have different colors, and wherein the second wavelength range includes a range on a shorter wavelength side than the first wavelength range.