Patent ID: 7700908

Claim:
A scanner, comprising: an optical device to receive an incident light beam at an angle of incidence, the optical device having disposed therein: a first refractive-based deflector to deflect the incident light beam towards a first direction, the first direction being in a horizontal direction, the first deflector comprising, a first prism having a first geometry, at least a second prism cascaded with the first prism, the at least a second prism having at least a second geometry different from the first geometry, wherein the light beam is to propagate in the first direction of the first and the at least a second prisms, a second deflector comprising a grating, the second deflector to deflect the first deflected light beam from the prisms towards a second direction perpendicular to the first direction, and a lens array disposed in or on the optical device to direct the incident light beam towards the first prism; a light source to emit the incident light beam; an optical fiber to couple incident light to the optical device, wherein the lens array comprises: at least one convex lens disposed in or on the optical device, the convex lens to focus the incident light; at least one concave lens disposed in or on the optical device, the concave lens to collimate the focused light beam, wherein the at least one convex lens is disposed between the first prism and the optical fiber, wherein the at least one concave lens is disposed between the at least one convex lens and the first prism, wherein the at least one convex lens is separated from the optical fiber by free space, and wherein the at least one concave lens is separated from the at least one convex lens by free space, a second convex lens disposed in or on the optical device, and a third convex lens disposed in or on the optical device, wherein the second convex lens is disposed between the at least one concave lens and the third convex lens, wherein the third convex lens is disposed between the second convex lens and the first prism, wherein the second convex lens is separated from the at least one concave lens by free space, wherein the third convex lens is separated from the second convex lens by free space, wherein the third convex lens is separated from the first prism by free space, wherein the first prism is separated from the at least a second prism by free space.