Method and device for microscopic examination of a sample

A method for microscopic examination of a specimen includes bringing the specimen into contact with an optically transparent medium that has a higher refractive index than the specimen. An illumination light bundle is generated and directed through an illumination objective that focuses the illumina...

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Bibliographic Details
Main Author Knebel, Werner
Format Patent
LanguageEnglish
Published 07.05.2019
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
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Summary:A method for microscopic examination of a specimen includes bringing the specimen into contact with an optically transparent medium that has a higher refractive index than the specimen. An illumination light bundle is generated and directed through an illumination objective that focuses the illumination light bundle. The illumination light bundle that has passed through the illumination objective in the direction of the specimen that is to be examined is deflected using a deflector arranged on a detection objective in such a way that the illumination light bundle strikes a boundary surface between the optically transparent medium and the specimen, where the illumination light bundle is totally reflected for purposes of evanescently illuminating the specimen. Fluorescent light that is emitted by the specimen and that passes through the detection objective is detected.
Bibliography:Application Number: US201515327391