Wide field diffractive lenses for imaging, scanning, and Fourier transformation
G. Michael Morris and D.A. Buralli
Diffractive optical elements offer the potential to reduce significantly the weight, size, and cost of a variety of optical systems that currently use refractive and/or reflective components. Unfortunately, the utility of conventional holographic lenses has been plagued by uncorrected field aberrations, particularly coma and astigmatism. However, recent advances in surface-relief diffractive lenses provide the optical designer with enough degrees of freedom to eliminate third-order coma, astigmatism, and field curvature.
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