| 主权项 |
1. An endoscope system comprising:
an image pickup device that has a light-receiving surface on which an image of a site to be observed in a subject is formed via an objective optical system; a treatment instrument guiding member that guides a treatment instrument in an observation visual field of the objective optical system to the site to be observed in the subject; a signal processing section that receives from the image pickup device, an electric signal of an entirety of the observation visual field whose image is formed on the light-receiving surface, extracts the electric signal of any one range of a plurality of visual field ranges set along a guiding direction of the treatment instrument guiding member with respect to the light-receiving surface from the electric signal and images the extracted visual field range corresponding to the electric signal; and a display section that displays an image of the extracted visual field range imaged by the signal processing section. |
