19 November 2003 Extended depth of field using the logarithmic asphere
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Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.524150
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy
Abstract
Transmission functions are derived for a novel logarithmic aspheric lens that provides an extended depth-of-field when used in an integrated digital processing system. Diffraction-theory equations valid in the non-paraxial case are presented together with a comparative study of two designs. This lens can be used either singly or in conjunction with a standard photographic lens. A tenfold increase in the depth-of-field has been obtained.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nicholas George, Wanli Chi, "Extended depth of field using the logarithmic asphere", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524150; https://doi.org/10.1117/12.524150
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