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http://dx.doi.org/10.12673/jkoni.2012.16.3.518

A Study on the MTF of optical system with optical path difference  

Che, Gyu-Shik (건양대학교 의공학부)
Jang, Won-Seok (건양대학교 의공학부)
Oh, Jake (건양대학교 의공학부)
Publication Information
Journal of Advanced Navigation Technology / v.16, no.3, 2012 , pp. 518-525 More about this Journal
Abstract
The modulation transfer function is generally used as a method to estimate the characteristics of this kind of optical system because it cannot reappear or implement image of the object perfect. By the way, it is difficult to assess the optical system with existing MTF method since the reaction between diffraction and aberration of aperture is very complicate if the aberration is very small. The MTF has to be calculated considering the numerical aperture, defocusing, OPD and phase difference. We validate its feasibility using bessel function as an estimating method, and then realize it through illustration in this paper.
Keywords
MTF; diffraction-limited; OPD; numerical aperture; aberration;
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