| 摘要 |
The purpose of the present invention is to provide an objective lens that has a small overall diameter and that can be adapted to an increase in resolution. Provided are: an objective lens that comprises a front lens group, an aperture stop, and a rear lens group in this order from the object side, said objective lens satisfying a predetermined conditional expression in which EXP is the exit pupil distance, f is the focal length of the entire optical system, Y is the maximum image height, and STO is the maximum radius of an on-axis light beam that passes through the aperture stop; and an imaging device provided with the objective lens. |
