Optical transfer function: Difference between revisions

Revision as of 14:38, 8 February 2008

Revision as of 12:03, 27 February 2008

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:<math>\mathbf{PTF(\xi,\eta)} = e^{-i 2\cdot\pi\cdot\lambda (\xi,\eta)} </math>

:and <math>(\xi,\eta)</math> are spatial frequency in the x- and y-plane, respectively.

The OTF accounts for [[aberration in optical systems|aberration]], which the limiting frequency expression above does not. The magnitude is known as the '''Modulation Transfer Function (MTF)''' and the phase portion is known as the '''Phase Transfer Function (PTF)'''.