Patent ID: 8864309
Filing Date: 2014-10-21
Classification: A61B,G02B

Abstract:
1. A scanning optical beam imaging system for imaging a surface with convex curvature, the system comprising: a source of optical radiation coupled to an optical fiber, wherein the optical fiber is coupled to an input of the scanning optical beam imaging system; an input lens assembly configured to direct a beam of optical radiation from the optical fiber to a beam scanning assembly of the imaging system; a lens assembly following the beam scanning assembly configured to transform the scanned beam of optical radiation into a set of non-parallel beams diverging from an optical axis of the lens assembly; an objective lens assembly configured to transform the diverging set of non-parallel beams to a set of non-parallel rays converging in object space, wherein the converging rays focus along a curved focal surface in object space between the objective lens assembly and a region of intersection of the rays; wherein a radius of curvature of a focal surface is greater than zero and less than an axial distance between a distal objective lens surface and the focal surface; and wherein the rays in object space are substantially perpendicular to the focal surface; and wherein optical path lengths of the set of rays measured from the optical fiber input to the focal surface are substantially equal.