Patent ID: 9104027
Filing Date: 2015-08-11
Classification: G01B,G02B

Abstract:
1. A turbulence simulation device for imparting wavefront aberrations to a radiation beam, the device comprising: an optical phase element for altering the optical phase of a radiation beam, the optical phase element comprising a plurality of active areas disposed on a surface of the phase element, the plurality of active areas comprising a plurality of variations for imparting wavefront aberrations to a radiation beam, thereby altering optical phase of the beam; and, a driving mechanism coupled to the optical phase element for transitioning the optical phase element between a plurality of positions, thereby exposing a different active area of the optical phase element to the radiation beam, wherein the optical phase element is configured to be positioned at an intermediate focal plane defined by an inverter, wherein the optical phase element imparts a range of simulated turbulence to the radiation beam, and wherein the plurality of variations of the plurality of active areas of the optical phase element provide random differences in optical phase of the radiation beam.