Depth of field extension with spherical optics.
Opt Express
; 16(17): 12995-3004, 2008 Aug 18.
Article
em En
| MEDLINE
| ID: mdl-18711538
ABSTRACT
The introduction of spherical aberration in a lens design can be used to extend the depth of field while preserving resolution up to half the maximum diffraction-limited spatial frequency. Two low-power microscope objectives are shown that achieve an extension of +/- 0.88 lambda in terms of wavefront error, which is shown to be comparable to alternative techniques but without the use of special phase elements. The lens performance is azimuth-independent and achromatic over the visible range.
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Base de dados:
MEDLINE
Assunto principal:
Aumento da Imagem
/
Imageamento Tridimensional
/
Lentes
/
Microscopia
Tipo de estudo:
Evaluation_studies
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article