Summary
An interference filter monochromator system for biological purposes has been described. The system contains two monochromator units. It operates with xenon arcs (Osram XBO 501) as sources of radiation and is therefore especially adapted for experimental work in the blue-violet range of the visible spectrum and in the near ultraviolet (until about 350 mμ). All lenses are made of quartz. A circle of 8 cm diameter is homogenously irradiated. The irradiances which can be presently obtained within this circle with our single or double interference filters are rather high (1900 and 630 ergs/cm2·sec respectively at 355 mμ, 9000 and 1700 ergs/cm2·sec respectively around 450 mμ). Together with the monochromator system which we described recently (Mohr undSchoser 1959) and which operates with incandescent projection lamps this xenon arc system enables biological investigations with highly purified monochromatic radiation in the spectral range from 350 to 800 mμ.
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Mohr, H., Schoser, G. Eine mit Xenonbögen ausgerüstete Interferenzfilter-Monochromatoranlage für kurzwellige sichtbare und Langwellige ultraviolette Strahlung. Planta 55, 143–152 (1960). https://doi.org/10.1007/BF01914631
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DOI: https://doi.org/10.1007/BF01914631