Patent ID: 8687286
Filing Date: 2014-04-01
Classification: G02B

Abstract:
1. A meso-optic device, comprising: a substantially annular meso-optic body including an axis of revolution; a divergent conic optical surface substantially coaxial with the axis of revolution, with the divergent conic optical surface configured to receive electromagnetic radiation propagating along an optical axis from an impingent direction, wherein the optical axis is coincident with or intersects the axis of revolution, and with the divergent conic optical surface configured to divergently re-direct the electromagnetic radiation away from the axis of revolution; and a convergent conic optical surface substantially coaxial with the axis of revolution with the convergent conic optical surface configured to receive the electromagnetic radiation divergently re-directed by the divergent conic optical surface and with the convergent conic optical surface configured to convergently re-direct the electromagnetic radiation toward the axis of revolution; with the meso-optic body further comprising: an annular planar optical surface located on an impingent direction side of the meso-optic body, with the annular planar optical surface configured to substantially pass the electromagnetic radiation; a cylindrical optical surface located around the axis of revolution and configured to substantially pass the electromagnetic radiation after the electromagnetic radiation leaves the convergent conic optical surface; and a non-optical conic surface extending between the divergent conic optical surface and the convergent conic optical surface, with the divergent conic optical surface, the convergent conic optical surface, the annular planar optical surface, the cylindrical optical surface, and the non-optical conic surface providing a substantially pentagonal cross-sectional shape of the meso-optic body; with said annular planar optical surface being oriented substantially radially to the axis of revolution and with an outside radius of the annular planar optical surface being in common with an inside radius of the convergent conic optical surface; with an inside radius of the annular planar optical surface being in common with one end of the cylindrical optical surface and with an other end of said cylindrical optical surface being in common with an inside radius of the divergent conic optical surface; and wherein the electromagnetic radiation leaving the convergent conic optical surface substantially passes through the cylindrical optical surface.