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Proceedings Paper

Optical Filtering And Spatial Frequency Coding With Interference Coatings
Author(s): G. Molesini; D. Bertani; M. Cetica; F. Quercioli
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Paper Abstract

The transmittance of interference coatings depends both on the wavelength and on the angle of incidence. The wavelength dependence can be used to encode the spatial frequency content of a transparency and to obtain a pseudocolored image. The dependence on the angle of incidence can be used in quasi-monochromatic light to perform spatial frequency filtering in the object space. Analysis, experimental evidence and applications are presented.

Paper Details

Date Published: 15 September 1982
PDF: 4 pages
Proc. SPIE 0346, Thin Film Technologies and Special Applications, (15 September 1982); doi: 10.1117/12.933795
Show Author Affiliations
G. Molesini, Istituto Nazionale di Ottica (Italy)
D. Bertani, Istituto Nazionale di Ottica (Italy)
M. Cetica, Istituto Nazionale di Ottica (Italy)
F. Quercioli, Istituto Nazionale di Ottica (Italy)

Published in SPIE Proceedings Vol. 0346:
Thin Film Technologies and Special Applications
William R. Hunter, Editor(s)

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