High depth of focus by combining annular lenses

In some technological applications, optical systems that produce a high depth of focus and superresolving transversal responses are required. In this paper we present a pupil design consisting in a phase pupil with binary amplitude, that added to a conventional optical system, can accomplish these g...

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Detalles Bibliográficos
Autores principales:	Ledesma, Silvia Adriana, Mazzaferri, Javier Esteban
Publicado:	2006
Materias:	Apodization Depth of focus Phase modulation Resolution Focusing Image analysis Lenses Optical resolving power Problem solving Annular lenses Best image plane (BIP) Optical systems
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v266_n1_p6_Ledesma http://hdl.handle.net/20.500.12110/paper_00304018_v266_n1_p6_Ledesma
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00304018_v266_n1_p6_Ledesma
record_format	dspace
spelling	paper:paper_00304018_v266_n1_p6_Ledesma2023-06-08T14:56:02Z High depth of focus by combining annular lenses Ledesma, Silvia Adriana Mazzaferri, Javier Esteban Apodization Depth of focus Phase modulation Resolution Focusing Image analysis Lenses Optical resolving power Phase modulation Problem solving Annular lenses Apodization Best image plane (BIP) Depth of focus Optical systems In some technological applications, optical systems that produce a high depth of focus and superresolving transversal responses are required. In this paper we present a pupil design consisting in a phase pupil with binary amplitude, that added to a conventional optical system, can accomplish these goals. The pupil function is characterized by a complex amplitude that consists basically in combining two annular lenses with different focal length. Meanwhile the central portion of the pupil has an amplitude equal to 0, the external portion is modulated with two quadratic phases each one covering an annular zone. One of the phases corresponds to a convergent lens and the other to a divergent lens. The effect on the incident wavefront is to redirect the light in front of and behind the best image plane (BIP) producing a widened focus. The evolution of the transverse gain for the extended focus is also studied. Experimental results are given, and they confirm the extended focus and the superresolving behavior of the proposed pupil function. © 2006 Elsevier B.V. All rights reserved. Fil:Ledesma, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mazzaferri, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v266_n1_p6_Ledesma http://hdl.handle.net/20.500.12110/paper_00304018_v266_n1_p6_Ledesma
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Apodization Depth of focus Phase modulation Resolution Focusing Image analysis Lenses Optical resolving power Phase modulation Problem solving Annular lenses Apodization Best image plane (BIP) Depth of focus Optical systems
spellingShingle	Apodization Depth of focus Phase modulation Resolution Focusing Image analysis Lenses Optical resolving power Phase modulation Problem solving Annular lenses Apodization Best image plane (BIP) Depth of focus Optical systems Ledesma, Silvia Adriana Mazzaferri, Javier Esteban High depth of focus by combining annular lenses
topic_facet	Apodization Depth of focus Phase modulation Resolution Focusing Image analysis Lenses Optical resolving power Phase modulation Problem solving Annular lenses Apodization Best image plane (BIP) Depth of focus Optical systems
description	In some technological applications, optical systems that produce a high depth of focus and superresolving transversal responses are required. In this paper we present a pupil design consisting in a phase pupil with binary amplitude, that added to a conventional optical system, can accomplish these goals. The pupil function is characterized by a complex amplitude that consists basically in combining two annular lenses with different focal length. Meanwhile the central portion of the pupil has an amplitude equal to 0, the external portion is modulated with two quadratic phases each one covering an annular zone. One of the phases corresponds to a convergent lens and the other to a divergent lens. The effect on the incident wavefront is to redirect the light in front of and behind the best image plane (BIP) producing a widened focus. The evolution of the transverse gain for the extended focus is also studied. Experimental results are given, and they confirm the extended focus and the superresolving behavior of the proposed pupil function. © 2006 Elsevier B.V. All rights reserved.
author	Ledesma, Silvia Adriana Mazzaferri, Javier Esteban
author_facet	Ledesma, Silvia Adriana Mazzaferri, Javier Esteban
author_sort	Ledesma, Silvia Adriana
title	High depth of focus by combining annular lenses
title_short	High depth of focus by combining annular lenses
title_full	High depth of focus by combining annular lenses
title_fullStr	High depth of focus by combining annular lenses
title_full_unstemmed	High depth of focus by combining annular lenses
title_sort	high depth of focus by combining annular lenses
publishDate	2006
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v266_n1_p6_Ledesma http://hdl.handle.net/20.500.12110/paper_00304018_v266_n1_p6_Ledesma
work_keys_str_mv	AT ledesmasilviaadriana highdepthoffocusbycombiningannularlenses AT mazzaferrijavieresteban highdepthoffocusbycombiningannularlenses
_version_	1768544398840168448

High depth of focus by combining annular lenses

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