The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology

Feng Yan; Xue-jun Zhang

doi:10.1117/12.794018

2 September 2008 The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology

Feng Yan, Xue-jun Zhang

Author Affiliations +

Proceedings Volume 7068, Optical System Alignment and Tolerancing II; 706807 (2008) https://doi.org/10.1117/12.794018
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

The wavefront coding technology is known as a system-level technology which can extend the depth of focus of optical system by innovative optical design and image restoration. This technology can control misfocus related aberrations including misfocus, astigmatism, and Petzval curvature, temperature-related misfocus in digital imaging systems. It can also help optical system tolerate more residual error in optical manufacturing and alignment besides misfocus. The brief introduction of wavefront coding technology and the wavefront coded TMA system under research is presented respectively in part 1 and part 2. The "MTF similarity" is defined to describe the relationship among MTF at different position or different fields in the third part. It is also shown in this part that the MTF similarity of wavefront coded system is much higher than the normal system within a large range. In part 4 comparison between the origin system and the new system with wavefront coding technology is provided after multiple errors are introduced, from which it can be observed that the system with wavefront coding technology can tolerate much bigger error than origin system. The error tolerance is re-distributed according to a new criterion based on MTF similarity. If the MTF similarity is less than a certain value, it can be regarded that the system can tolerate the residual error. The new error tolerance is displayed and it is shown that the wavefront coding technology can also loosen the error distributing besides extended the depth of focus.

Citation Download Citation

Feng Yan and Xue-jun Zhang "The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology", Proc. SPIE 7068, Optical System Alignment and Tolerancing II, 706807 (2 September 2008); https://doi.org/10.1117/12.794018

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