Wavefront sensor optimization in astronomical applications

Gerard Lelievre; J. Sebag; D. Bauduin; F. Fidouh; J. L. Lebrun; B. S. Servan

doi:10.1117/12.140973

1 January 1993 Wavefront sensor optimization in astronomical applications

Gerard Lelievre, J. Sebag, D. Bauduin, F. Fidouh, J. L. Lebrun, B. S. Servan

Proceedings Volume 1781, Specification and Measurement of Optical Systems; (1993) https://doi.org/10.1117/12.140973
Event: Optical Systems Design '92, 1992, Berlin, Germany

Abstract

Microlens arrays made by engraving photoresist coatings are suitable for astronomical applications, especially in the Shack-Hartmann type of wavefront sensor. Their characteristics have to be carefully chosen to fit the turbulence strength. Our instrument, composed of a photon-counting device and a Shack-Hartmann sensor, allows synchronous recordings of short-exposure images and their corresponding wavefronts. In post-processing, the point spread functions (PSF) are calculated and used to deconvolve the direct images. A new real- time centroiding device transforms this experiment into a quasi real-time imaging corrective system.

Citation Download Citation

Gerard Lelievre, J. Sebag, D. Bauduin, F. Fidouh, J. L. Lebrun, and B. S. Servan "Wavefront sensor optimization in astronomical applications", Proc. SPIE 1781, Specification and Measurement of Optical Systems, (1 January 1993); https://doi.org/10.1117/12.140973

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available