Absorption in systems of multilayer interference light filters. Effective systems of light filters

We study the spectral characteristics $T(\lambda)$, $A(\lambda)$, and $R(\lambda)$ of different types of multilayer interference light filters. It is shown that, at the expense of a higher complexity of light-filter system, one can obtain large values of the transmission coefficient $T_{max}$ for a given bandwidth and given physical parameters of the layers.