catadioptric imaging lens 38 is circularly symmetric about a lens axis 64 an axis 66 of the bore 62 is coincident with the lens axis 64 the bore may be either cylindrical as illustrated in fig5 or of another shape such as a frustum of a cone as illustrated in fig6 the bores 62 of fig5 and 6 are transversely opaque but are shown as line elements for clarity the remainder of the solid catadioptric imaging lens 38 is transparent to the light sensed by the sensor 34 the dome 24 and the optical corrector 44 if any are designed by a standard ray path technique such as the code v software the infinite number of ghost image ray paths 60 are then simulated by the standard asap advanced system analysis program software and the diameter of the bore 62 is selected using the asap software in the case of a shape of the bore 62 that is not uniform along its length the u201c bore diameter u201d is the maximum diameter or distance from the bore axis 66 no single bore diameter is suitable for all optical systems 30 generally however the bore diameter is selected such that the maximum distance of an interior surface 68 from the bore axis 66 and the lens axis 64 is substantially equal to an inner rim ray diameter of the optical system an inner ray path 70 of the optical system 30 is illustrated in fig6 if the bore diameter is made larger than the diameter defined by this inner ray path then the bore will block light rays 40 from the scene so that the ability to perceive features in the scene will be degraded in the.