We present a family of non-conventional, phase-only masks that increase the depth of field of an optical system. We discuss the use of phase diagrams for describing the frequency response with variable focus errors. We report numerical simulations of the images achieved using our masks.
© 2004 Optical Society of America
J. Ojeda-Casteneda, A. Sauceda, and A. Castro, "Phase-only masks for extended depth of field: Phase diagram representations," in Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, OSA Technical Digest Series (Optical Society of America, 2004), paper FWK1.
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