Optical Design and Engineering

Engineering of apodizer filters in the optical imaging using a set of phase plates

[+] Author Affiliations
Omar Palillero-Sandoval, Pedro Antonio Márquez-Aguilar

Instituto de Investigación en Ciencias Básicas y Aplicadas (IICBA), Centro de Investigaciones en Ingeniería y Ciencias Aplicadas (CIICAp), UAEM. Av. Universidad No. 1001 Col. Chamilpa, Cuernavaca C.P. 62209, México

Luis Raul Berriel-Valdos

Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) Luis E. Erro No.1, Sta. Ma. Tonantzintla, Pue. C.P. 72840, México

Opt. Eng. 55(10), 105103 (Oct 31, 2016). doi:10.1117/1.OE.55.10.105103
History: Received June 7, 2016; Accepted October 17, 2016
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Abstract.  A numerical study of the performance of a set of phase masks and apodizer filters, which are able to extend the depth of field (DOF) in the imaging system, are presented using a test object with different levels of gray. The ambiguity function is used to display which of these filters, placed in the pupil function, can increase the DOF. The intensity quasi-point spread functions (IQPSFs) show invariance in the central spot of the IQPSF when the apodizer is placed in the optical system. This approach minimizes the replicas of the object that appears in the background of the restored images produced by the numerical processing when in the pupil function these phase filters are used simultaneously. The correlation coefficient criteria and minimum squares differences were used to evaluate the quality of the restoration process.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Omar Palillero-Sandoval ; Pedro Antonio Márquez-Aguilar and Luis Raul Berriel-Valdos
"Engineering of apodizer filters in the optical imaging using a set of phase plates", Opt. Eng. 55(10), 105103 (Oct 31, 2016). ; http://dx.doi.org/10.1117/1.OE.55.10.105103


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