DESIGN OF DIFFRACTIVE SINGLETS FOR MONOCHROMATIC IMAGING

被引:39
作者
BURALLI, DA
MORRIS, GM
机构
[1] University of Rochester, Institute of Optics, Rochester, NY
关键词
D O I
10.1364/AO.30.002151
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The Seidel aberrations of a rotationally-symmetric diffractive lens with an arbitrary phase profile are presented. It is shown that by a proper choice of phase function and aperture stop position, third-order coma and astigmatism can be eliminated for any chosen conjugate ratio. Since a diffractive lens has an inherent zero value for the Petzval sum, the image plane is flat in both tangential and sagittal meridians. The substrate curvature of the lens may be chosen to introduce a prescribed amount of distortion to allow for use as a Fourier transform lens or a laser scan lens. Examples are given of lens performance in finite conjugate imaging and laser scanning, where the f - theta condition is satisfied.
引用
收藏
页码:2151 / 2158
页数:8
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