ILLUMINATION DEVICE FOR A CONFOCAL MICROSCOPE

ILLUMINATION DEVICE FOR A CONFOCAL MICROSCOPE

The invention relates to an illumination device, in particular for a confocal microscope. The object of the invention is to provide an illumination device which operates with a plurality of current-modulated semiconductor-based light sources, in which the light emission is as free as possible from d...

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Hauptverfasser: LEMBACH, Jörg, RIECKMANN, Alf, HAGER, Manfred, RAUSCH, Christian
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Sprache:eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator LEMBACH, Jörg
RIECKMANN, Alf
HAGER, Manfred
RAUSCH, Christian
description The invention relates to an illumination device, in particular for a confocal microscope. The object of the invention is to provide an illumination device which operates with a plurality of current-modulated semiconductor-based light sources, in which the light emission is as free as possible from distortions due to dynamic delays of the light emission in the output beam. To this end, the proposed illumination device comprises:two or more semiconductor-based light sources, in particular laser diodes, which are designed to emit light at different wavelengths,a combining unit, which is designed to combine the light emissions of the light sources into a single output light beam, anda driver unit connected to the light sources, which driver unit is designed to synthesise an operating current signal, which is supplied to each of the light sources, from at least one control signal, which specifies the temporal course of the light emission of each of the light sources, by means of digital signal processing, wherein the driver unit impresses a compensation signal on each of the operating current signals, which compensation signal at least partially compensates for a specific dynamic delay of the light emission of the particular light source.
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title ILLUMINATION DEVICE FOR A CONFOCAL MICROSCOPE
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