The available work concerns itself with the constructional design and the
testing of a universal measurement setup, which makes a localdissolved
characterisation of thin film interference systems in connection with a
multi-channel spectrophotometer possible. For the spectrophotometric
investigation of such interference filters the fundamental physical
mechanisms of the thin film optics are compiled, so that the measured
values received with experimental testing are scientifically analyzable. It
is dealt in detail with instrumentation as well as optical connections. At
the end an estimate of the spectral and photometric accuracy of the used
spectrophotometer is made.