Patent ID: 8610088

Claim:
An optical arrangement configured to examine a specimen comprising: an optical assembly defining an optical axis; an illuminating device for supplying optical radiation along an illuminating beam path; means for coupling said optical radiation into said optical assembly for transmission along said optical axis; and, said illuminating device including: at least two light emitting diodes for emitting optical radiation with respectively different emission spectra and along respective beam path segments; said means for coupling including at least one color splitter assigned to each of said light emitting diodes, respectively; each of said color splitters being reflective for the optical radiation of the light emitting diode corresponding thereto; said light emitting diodes and said color splitters being so arranged that the optical radiation emitted by each of said light emitting diodes is coupled into a common illuminating beam path segment; a plurality of collimating units mounted in said beam path segments, respectively, to collimate the optical radiation emitted by corresponding ones of said light emitting diodes and passing to respective ones of said color splitters; said optical arrangement being configured to conduct fluorescence examinations of said specimen; said optical assembly defining a detection beam path along which fluorescence radiation emanating from said specimen travels; said detection beam path for said fluorescence radiation including at least one multiband emission filter or multiband emission filter set; wherein at least one of said emission spectra of said light emitting diodes lies with its characteristic wavelength between two emission wavelength ranges of said multiband emission filter or said multiband emission filter set; and, said optical assembly further comprising a white-light emitting diode being coupled into said common illuminating beam path by a partially transmitting deflecting mirror; wherein the optical radiation emitted by each of said light emitting diodes is reflected by said partially transmitting deflecting mirror and the optical radiation emitted by said white-light emitting diode is transmitted through said partially transmitting deflecting mirror.