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Ein vereinfachtes optisches System zur Aufzeichnung von Brechungsindexgradienten bei Diffusions‐ und Sedimentations‐Messungen. 4. Mitteilung über Laboratoriums‐ und Ultrazentrifugen
Author(s) -
Wiedemann E.
Publication year - 1957
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19570400632
Subject(s) - chemistry , collimator , optics , diffusion , physics , thermodynamics
Abstract A simplification of the two collimator lenses system preferably used in electrophoresis and diffusion apparatus as well as in ultracentrifuges is described by which the functions of the second collimator lens and the objective are transfered to a single objective which replaces them fully. The advantages of the known optical system, especially the illumination of the cells with parallel light, the reduced over‐all length of the system and its versatility are completed, in the new optical system, by lower losses of light and by the dispense with a supplementary optical correction.