Estimate at least one distortion of wavefront of optical system or the method and the relevant device of the object that arrives by described optical system observing

Estimate at least one distortion of wavefront of optical system or the method and the relevant device of the object that arrives by described optical system observing

  • CN 101,779,112 A
  • Filed: 07/21/2008
  • Published: 07/14/2010
  • Est. Priority Date: 07/19/2007
  • Status: Active Application
First Claim
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1. at least one distortion (10) of a wavefront that is used to estimate observing system (20) or the method by the observed object of described observing system (20) is characterized in that,Near the focal plane of observing system, at least one difference plane, obtain at least one differential image (26-28), wherein differential image comprises known differential deformation, and in each difference plane,Determine iconic model according to the following at least:

  • The physics pupil of system is decomposed into a plurality of sub-pupils,Institute'"'"'s changes persuing shape on each sub-pupil is decomposed into form by at least one deformation of undetermined coefficient weighting;

    The transport function of automatic interrelated definite system (20) of the pupil by system (20);

    According to the deformation coefficient of being asked each (P0-P6) linearization that to be mutually related automatically, near known differential deformation, carry out this linearization;

    Observed object and noise;

    By the definite iconic model and the image of acquisition, estimate distortion or the observed object asked.

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