8 September 2011 Control of optical aberrations with coded apertures
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Abstract
We report the design of binary-amplitude masks that in conjunction with digital restoration enable mitigation of optical aberrations. Essentially, the design process aims to maintain high modulation-transfer functions by reducing destructive interference of optical-transfer-function phasors. Two optimization techniques are described: so-called contour masks and the use of multiple pixelated masks. In general the resultant modulation-transfer function is 20% of a diffractionlimited imaging system and due to the absence of nulls recorded images can be restored to a high-contrast diffractionlimited image. Example applications are presented for correcting ocular aberrations and for conformal imaging.
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Andrew R. Harvey, Gonzalo D. Muyo, Tom Vettenburg, "Control of optical aberrations with coded apertures", Proc. SPIE 8165, Unconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems, 816517 (8 September 2011); doi: 10.1117/12.894975; https://doi.org/10.1117/12.894975
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