| 摘要 |
An endoscope system including a solid-state image pickup device having a photosensitive area and configured to produce an electronic image; an optical system having a focal length and configured to transmit an optical image of an object incident onto the photosensitive area; a superimposing device configured to superimpose on the electronic image produced by the solid-state image pickup device scale information according to the focal length of the optical system; and a display configured to display the electronic image and the superimposed scale information. The focal length of the optical system is variable by means of a lever operated wire connected to a lens of the optical system and disposed in an endoscope inserter. Thus, an operator can easily measure the length of the object based on the scale information superimposed on the displayed electronic image. |
