主权项 |
1. A lens system for redirecting light rays within a field of view toward a focal plane, the lens system comprising:
a first lens having a semispherical exterior surface opposite a non-spherical interior surface; and a second lens adjacent the first lens, the second lens having a non-spherical interior surface opposite a non-spherical exterior surface, wherein the semispherical exterior surface defines a center point, the semispherical exterior surface does not refract the light rays heading toward the center point, and the interior surface of the first lens, the interior surface of the second lens, and the exterior surface of the second lens are configured to in combination refract the light rays originally heading toward the center point to a focal point between the focal plane and the center point. |