In this paper we consider Fourier optics and from it we obtain the expression for the optical invariant valid for any image-forming system. The invariant that we derive is applicable to systems which are or are not centred or symmetrical and therefore it is written in a matrix form. When the paraxial approximation holds, the optical invariant reduces to the classical Lagrange–Helmholtz invariant. © 1996 Taylor & Francis Group, LLC.
Documento: | Artículo |
Título: | Image-forming systems: Matrix formulation of the optical invariant via Fourier optics |
Autor: | Simon, J.M.; Comastri, S.A. |
Filiación: | Facultad de Ciencias Exactas y Naturales, Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina |
Palabras clave: | Image processing; Mathematical models; Matrix algebra; Lagrange-Helmholtz invariant; Optical invariant; Fourier optics |
Año: | 1996 |
Volumen: | 43 |
Número: | 12 |
Página de inicio: | 2533 |
Página de fin: | 2541 |
DOI: | http://dx.doi.org/10.1080/09500349608230679 |
Título revista: | Journal of Modern Optics |
Título revista abreviado: | J. Mod. Opt. |
ISSN: | 09500340 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09500340_v43_n12_p2533_Simon |