Patent ID: 7920337

Claim:
An optical system comprising a light transmitting optical axicon body configured to redirect incoming light from a reference plane surrounding said axicon body to form a concentrated beam exiting the axicon body and also configured to redirect incoming light from a concentrated beam entering the axicon body to exit the axicon body to a reference plane as a reference exit beam having a predetermined angular extent and further comprising Said axicon body having an outer surface of predetermined width and length extending between first and second ends of said axicon body, a convex lens surface on said first end, and an inwardly extending second lens surface shaped as a section of a wall of a conic section within said second end of said axicon body Said lens surfaces and said body being aligned along a common plane, whereby light directed into said convex lens surface and reflected off said inwardly extending lens surface through and beyond said outer surface of said axicon body is transformed into a reference exit beam having a predetermined angular extent, and light entering said body along a plane surrounding said axicon body will reflect from said inwardly extending lens surface into said axicon body and will be transformed into a concentrated beam exiting through said convex lens surface.