| abstract |
Three objective lenses (11) having optical axes L oriented to different directions are mounted on a head portion (10) of an endoscope device. The objective lens (11) has a predetermined view angle θ centered by the optical axes L. Each objective lens (11) is disposed so as to have the peripheral portions of its viewing field overlap with the peripheral portions of the viewing fields of adjoining other objective lenses (11). Hence, the three objective lenses (11) causes the head portion (10) as a whole to have a view angle φ extending over a wider range than the view angle θ of the objective lens (11) with no discontinuation. Each optical image of a testing target part captured within this view angle φ is imaged by an imaging element. |