Diffraction theory of optimized low-resolution Fresnel encoded lenses

Carcolé i Carrubé, EduardCampos Coloma, JuanJuvells Prades, IgnacioFrancisco Moneo, J. Ramón de2012-04-202012-04-2019950003-6935https://hdl.handle.net/2445/24262A mathematical model describing the behavior of low-resolution Fresnel encoded lenses (LRFEL's) encoded in any low-resolution device (e.g., a spatial light modulator) has recently been developed. From this model, an LRFEL with a short focal length was optimized by our imposing the maximum intensity of light onto the optical axis. With this model, analytical expressions for the light-amplitude distribution, the diffraction efficiency, and the frequency response of the optimized LRFEL's are derived.9 p.application/pdfeng(c) Optical Society of America, 1994Reconeixement òptic de formesOptical pattern recognitionDiffraction theory of optimized low-resolution Fresnel encoded lensesinfo:eu-repo/semantics/article88024info:eu-repo/semantics/openAccess