FLUORESCENCE OBSERVATION SYSTEM AND SET OF FILTERS

摘要

A set of filters for fluorescence observation comprises an illumination light filter and an observation light filter, wherein the following is holds:;∫STL(r->)·TO(r->)·r->·r∫STL(r->)·TO(r->)·r=R->and(3)W->-R->≤0.2;(4);wherein:
λ designates the wavelength,TL(λ) is the transmission characteristic of the illumination light filter,TO(λ) is the transmission characteristic of the observation light filter, andA1, A2 are numbers between 0 and 1, {right arrow over (r)} is a coordinate in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space,S is a line called the spectral locus in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space, and{right arrow over (W)} is the white point in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space.

主权项

1. A set of filters comprising an illumination light filter and an observation light filter;
wherein a transmission characteristic of the illumination light filter is a sum of a first partial characteristic and a second partial characteristic; wherein a transmission characteristic of the observation light filter is a sum of the third partial characteristic and a fourth partial characteristic; wherein the first partial characteristic has, at wavelengths below a threshold wavelength, at least one wavelength range in which the transmission has values greater than a first value; wherein the second partial characteristic has, at wavelengths above the threshold wavelength, at least one second wavelength range in which the transmission has values less than a second value and greater than a third value, wherein the transmission of the illumination light filter has, between the first wavelength range and the second wavelength range, values less than a fourth value; wherein the third partial characteristic has, at wavelengths above the threshold wavelength, at least one third wavelength range in which the transmission has values greater than the first value; wherein the fourth partial characteristic has, at wavelengths below the threshold wavelength, at least one fourth wavelength range in which the transmission has values less than the second value and greater than the third value; and wherein the fourth value is less than the third value, the third value is less than the second value and the second value is less than the first value.