Patent ID: 8269966
Filing Date: 2012-09-18
Classification: B33Y,G01N

Abstract:
1. Fluorescence meter for investigating a specimen, comprising: a housing including a main channel for a main optical path; a first source for providing an output comprising a first excitation electromagnetic beam disposed along the main optical path to excite the specimen; said first optical module is configured such that the emission electromagnetic beam is disposed with the excitation electromagnetic beam at least partly in one plane and extending along the main optical path; a first band-pass filter disposed between said first source and the specimen; a second band-pass filter disposed between said first source and said monitor diode, said second band-pass filter not forming a part of an optical path between said first source and the specimen, an optical path between said first source and said monitor diode not including a beam splitter; and said first and second band-pass filters have the same optical properties such that the electromagnetic beam shining on the specimen and on said monitor diode is the same, whereby the output can be monitored and said first source can be stabilized.