Patent ID: 9526408
Filing Date: 2016-12-27
CPC Classification: A61B

Claim Text:
1. An electronic endoscope system comprising: at least first and second light source systems configured to illuminate an internal body portion including a blood vessel from an insert section to be inserted into a body, the first light source system generating first illumination light including first narrowband light, the second light source system generating second illumination light including second narrowband light, the first light source system having a first semiconductor light source, the second light source system having a second semiconductor light source, wherein a lens through which both the first and second light are transmitted is physically situated in a same organ of interest, and wherein each of the first illumination light and the second illumination light has a different emission spectra; a color imaging device configured to image the internal body portion illuminated with the first or second illumination light, the color imaging device having pixels of two or more colors, electric charge accumulated in each pixel being read out periodically as a pixel value, wherein the color imaging device outputs a first image captured under illumination of the first illumination light, and a second image captured under illumination of the second illumination light; a controller configured to control the first and second light source systems such that the first and second illumination light is applied alternately to the internal body portion in a vascular observation mode, the controller putting the second semiconductor light source of the second light source system into the reduced light state without turning off the second semiconductor light source during the application of the first illumination light and putting the first semiconductor light source of the first light source system into a reduced light state without turning off the first semiconductor light source during the application of the second illumination light; a processor configured to: a display controller configured to cause the vascular information image to be displayed.