The imaging and restoration experiment of a space telescope with | 1414
Journal of Physical Chemistry & Biophysics

Journal of Physical Chemistry & Biophysics
Open Access

ISSN: 2161-0398

+44 1478 350008

The imaging and restoration experiment of a space telescope with wavefront coding technology

International Conference and Exhibition on Lasers, Optics & Photonics

October 07-09, 2013 Hilton San Antonio Airport, TX, USA

Feng Yan

Accepted Abstracts: J Phys Chem Biophys

Abstract :

Wavefront coding (WFC) is kind of computational imaging technique that controls defocus and defocus related aberrations of optical systems by introducing a specially-designed phase distribution to the pupil function. This technology has been applied in a number of imaging system to increase the performance or/and reduce the cost. The application of WFC technology in an off-axis three mirror anastigmatic (TMA) system has been proposed in our previous work. In this paper we describe the alignment, the imaging experiment and the image restoration of an actual TMA system with WFC technology. The paper is organized as follows: the first two sections gives the brief introduction of WFC technology and some results of our previous research, the auto-collimated alignment with digital reference is introduced in the third section, the imaging experiment of star point and a particular resolution target is presented in the fourth section, the analysis and comparison of captured and restored images is described in the fifth section and the conclusion is given in the last section. It can be concluded that the experiment results agree with the theoretical analysis well.

Biography :

Feng Yan received his bachelor degree from College of Physics, NanKai University in 2004 and received his Ph.D. from Graduate School, Chinese Academy of Science (CAS) in 2009. Now he is an Associate Researcher in Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), CAS, who is majoring in wavefront coding and optical testing.