Patent ID: 9581812
Date: 2017-02-28
CPC Classifications: G02B

Claim:
1. An optical assembly, comprising: an objective lens that produces a convergent beam of light; an optical member having a thickness, wherein the optical member is disposed at a distance from the objective lens and propagates at least a portion of the convergent beam of light and whereby propagation of at least the portion of the convergent beam of light yields aberration of an image formed from at least the propagated portion of the convergent beam of light; and a corrector lens movably positioned between the objective lens and the optical member at a defined location based at least in part on the thickness, the corrector lens having a substantially uniform index of refraction and introducing a radially symmetric wavefront correction that varies as a fourth power of a radial distance from the central axis of propagation of the convergent beam of light, whereby the corrector lens corrects at least part of the aberration.