title: No wavefront sensor adaptive optics system for compensation of primary aberrations by software analysis of a point source image. 2. Tests.
abstract: The description of an adaptive optics (AO) system with no wavefront sensor to correct primary aberrations is presented. This system is based on closed loop software that iteratively analyzes a point source target image on the instrument focal plane and suitably modifies the AO device. The performed tests with a pull-only deformable mirror (DM) have shown that the system works very well, reaching an optimal focusing condition in a few seconds using standard components. Such a system can be conveniently applied in all the fields in which a not very fast optical adaptation is acceptable.
authors.affiliation: Department of Information Engineering, University of Padova, Via Gradenigo, 6/B-I-35131 Padova, Italy. naletto@dei.unipd.it
authors.forename: Giampiero
authors.initials: G
authors.lastname: Naletto
authors.forename: Fabio
authors.initials: F
authors.lastname: Frassetto
authors.forename: Nicola
authors.initials: N
authors.lastname: Codogno
authors.forename: Enrico
authors.initials: E
authors.lastname: Grisan
authors.forename: Stefano
authors.initials: S
authors.lastname: Bonora
authors.forename: Vania
authors.initials: V
authors.lastname: Da Deppo
authors.forename: Alfredo
authors.initials: A
authors.lastname: Ruggeri