Aspheric lens to increase the depth of focus

Aspheric lens to increase the depth of focus

For high-resolution optical systems, a long depth of focus is desirable. Unfortunately, resolution and depth of focus are inversely related. In this work, a novel lens is presented to produce long depth of focus beams, keeping the same resolution. The equations to perform the optical design of this...

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Veröffentlicht in:Optics letters 2015-06, Vol.40 (12), p.2842-2845
Hauptverfasser: Vázquez-Villa, Alexis, Delgado-Atencio, José A, Vázquez-Montiel, Sergio, Castro-Ramos, Jorge, Cunill-Rodríguez, Margarita
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Sprache:eng
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Beams (radiation)
Lenses
Mathematical analysis
Optical design
Spots
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container_end_page 2845
container_issue 12
container_start_page 2842
container_title Optics letters
container_volume 40
creator Vázquez-Villa, Alexis
Delgado-Atencio, José A
Vázquez-Montiel, Sergio
Castro-Ramos, Jorge
Cunill-Rodríguez, Margarita
description For high-resolution optical systems, a long depth of focus is desirable. Unfortunately, resolution and depth of focus are inversely related. In this work, a novel lens is presented to produce long depth of focus beams, keeping the same resolution. The equations to perform the optical design of this kind of lenses and results are shown for a simple lens that can produce beams with a spot size of 2.9 μm over a range of 1.5 mm and for an achromatic doublet with a focus depth of 10 mm.
doi_str_mv 10.1364/OL.40.002842
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source Optica Publishing Group Journals
subjects Beams (radiation)
Lenses
Mathematical analysis
Optical design
Spots
title Aspheric lens to increase the depth of focus
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