Filter set for use in fluorescence tracking system to carry out fluorescence observation of object, has illuminating light filter whose transmission characteristic is sum of two partial characteristics

摘要

The filter set has an illuminating light filter (84) whose transmission characteristic is a sum of a first partial characteristic and a second partial characteristic. An observation light filter (91) exhibits transmission characteristic that is equal to a third partial characteristic. The first partial characteristic and the second partial characteristic have wavelengths below and above cutoff wavelength in two wavelength ranges, respectively. The illuminating light filter is arranged in an illumination beam path between a light source (72) and an object (9). Independent claims are also included for the following: (1) a fluorescence tracking system comprising a light source (2) a method for carrying out fluorescence observation using the filter set.