Spectrum Line Distortion Caused by Step Filters
Abstract:Spectrum line distortion, shown schematically in Figure 1, was recently encountered when a step filter was used directly in front of the slit of a stigmatic spectrograph. The character of the distortion was investigated by using a wide slit and observing the visible spectrum of mercury with an eyepiece. The striations were found to be due to interference fringes which occurred within the filter.
Document Type: Research Article
Affiliations: Research Laboratories, General Motors Corporation, Warren, Michigan
Publication date: April 1, 1960
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