Patent ID: 8798426

Claim:
An optical waveguide system comprising: a substrate; a cladding layer arranged on the substrate; a core layer arranged on the cladding layer; and a Fresnel lens-prism patterned in the core material, the Fresnel lens-prism comprising a first surface having a profile substantially defined by a subtraction of a floor function of y LP1 from y LP1 , where y LP1 =y L1 +y P1 where y L1 =a 1 x 2 +b 1 and y P1 =m 1 x+c 1 where a 1 , b 1 , m 1 , and c 1 are constants; wherein the first surface is asymmetrical about a central lens axis of the Fresnel lens-prism, such that the Fresnel lens-prism is operative to both focus an incident light beam and to refract the incident light beam to a point that is off the central lens axis of the Fresnel lens-prism.