RADIATION RESISTANT LENS OPTICAL SYSTEM AND RADIATION ENVIRONMENT MONITORING CAMERA EQUIPPED WITH SAME

摘要

Provided are: a radiation resistant lens optical system with which it is possible to achieve reduction in camera size while maintaining the view angle, and suppress the effect of radiation on imaging elements; and a radiation environment monitoring camera equipped with the radiation resistant lens optical system. A radiation resistant lens optical system 10 includes a plurality of lenses arranged along the optical axis toward the object side of an imaging element 7. At least one of the plurality of lenses comprises a lead-containing glass. The lens nearest to the object among the plurality of lenses comprises glass containing cerium oxide.