| 摘要 |
An apparatus for determining the optical properties of a fluorescent object or sample having a radiation source (10) generating a spectrum of illuminating radiation for illuminating a portion of the object (45). A detection means (50) having a plurality of detectors (72, 74, 76, 78) adapted to generate an output, each of the detectors (72, 74, 76, 78) has a spectral response in a portion of the spectrum of the fluorescent radiation emitted by the object or sample and outside the spectrum of illuminating radiation emitted by the radiation source (10). Each of the detectors (72, 74, 76, 78) has a separate peak spectral response and at least a partial overlap in spectral response characteristics with that of at least one other of the detectors (72, 74, 76, 78). An analysis means is arranged to analyze the outputs from the detectors (72, 74, 76, 78) to generate a signal indicative of the optical properties of the object (45). The apparatus is constructed such that each of the detectors (72, 74, 76, 78) is located such that it congruently samples the radiation from the object (45), whereby with congruent sampling, the detectors are superimposable, that is, if a translocation was made from the position of one detector to the position of another detector the identical optical sampling is achieved. <IMAGE> |
