Study on the wavefront coding characteristics by ray tracing method

Huaiyu Cai; Tao Lei; Liqiang Fan; Zhanhua Huang

doi:10.1117/12.838065

25 November 2009 Study on the wavefront coding characteristics by ray tracing method

Huaiyu Cai, Tao Lei, Liqiang Fan, Zhanhua Huang

Proceedings Volume 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 75060Y (2009) https://doi.org/10.1117/12.838065
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

It is quite important to study the wavefront coding characteristics further for deeper understanding the theory of wavefront coding, and improving the quality of final image restoration and the coding performance of the system. First of all, a model to study the coding relationship between the incident ray and the emerging ray in different parts of aperture was established by ray tracing method based on a finished design of the handy wavefront coding system for measuring the crack width in concrete. Second, the rotation relation between the phase mask and its corresponding PSF was discussed. Finally, the analysis and evaluation of the shape, size and the intensity distribution of PSF along with different fields were completed. The results show that the PSF azimuths of the coded system vary with the different placement of phase mask and the PSF expands seriously in the meridian direction (expanding rate 59.9%) while nearly remains the same in the sagittal direction when the object field increasing. It will help us to divide isoplanatic regions and modify the PSF for the final image restoration.

Citation Download Citation

Huaiyu Cai, Tao Lei, Liqiang Fan, and Zhanhua Huang "Study on the wavefront coding characteristics by ray tracing method", Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 75060Y (25 November 2009); https://doi.org/10.1117/12.838065

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