MULTI-DIRECTIONAL OPTICAL ELEMENT AND AN OPTICAL SYSTEM UTILIZING THE MULTI-DIRECTIONAL OPTICAL ELEMENT.

摘要

Multi-directional optical elements are disclosed that include a body having a first side having a first curvature, a second side having a second curvature, a third side having a third curvature, and a fourth side having a fourth curvature. The second side is disposed generally opposite the first side along a first direction and a fourth side is disposed generally opposite the third side along a second direction, the second direction being different from the first direction. Also disclosed are optical systems utilizing such multi-directional optical elements.