Patent ID: 7639909
Filing Date: 2009-12-29
Classification: B64D,G02B,H04J

Abstract:
1. A system for producing propagating helical light rays in an optical carrier, comprising, means for producing a collimated light ray beam; means for propagation of said collimated light ray beam; means for injecting said light ray beam into said means for propagation; said means for injecting said light ray beam, including means for injecting said light ray beam at a skew angle relative to a numerical aperture in said means for propagation, wherein substantially all said light ray beam propagates in a space curve circular helix path; wherein said means for propagation includes means defining a numerical aperture ⊖max, said means for injecting said light ray beam at a skew angle, includes means for injecting said light ray beam into said means for propagation, within said numerical aperture ⊖max, and said means for propagation includes means for containing said light ray beam within said means for propagation responsive to means for injecting said light ray beam at a skew angle within said numerical aperture ⊖max ; and wherein, said means for propagation includes means for refracting said collimated light ray beam responsive to refractive indices n1 and n2, and wherein said numerical aperture ⊖max is responsive to the function sin ⊖max=(n1