Applications Of Interference Coatings In Optical Processing

G. Molesini; D. Bertani; M. Cetica; F. Quercioli

doi:10.1117/12.934357

16 June 1983 Applications Of Interference Coatings In Optical Processing

G. Molesini, D. Bertani, M. Cetica, F. Quercioli

Proceedings Volume 0369, Max Born Centenary Conf; (1983) https://doi.org/10.1117/12.934357
Event: The Max Born Centenary Conference, 1982, Edinburgh, United Kingdom

Abstract

The optical transfer function of interference coatings in quasi-monochromatic light appears suitable to directly perform 2-D low-pass, band-pass and high-pass spatial frequency filtering. Uniformity of the coating over an extended area allows for space-invariant operation. Both coherent and incoherent processing are possible. In multiple wavelength illumination the optical information is coded into colour channels, corresponding to spatial frequency bands. This allows for parallel imaging in multiple wavelength with different transfer functions, and can result in pseudocolouring effects if suitable coatings such as unblocked interference filters are employed.

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G. Molesini, D. Bertani, M. Cetica, and F. Quercioli "Applications Of Interference Coatings In Optical Processing", Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); https://doi.org/10.1117/12.934357

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