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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Measurement of the Basic Material Characteristics forTransmission of Chain Filter
 Melich, Radek
Observing the Sun with birefringent filters is done mainly with filters tuned constantly on some interesting spectral wavelength. However, a new problem that solves tuning of these filters by a temperature change, meets a problem of a insufficient accuracy of dispersion dependences which are used for calculation of transmission at the exact wavelength and the exact temperature. Designing a filter that reaches an extreme small value in its FWHM (e.g. 0.05 nm) it is then very important to determine birefringent dependency with a sufficient accuracy. The paper shows the technique of getting such dependencies, then it mentions a mathematical process suitable for getting the transmission of Solc filter and finally it compares data got from an experiment with computed data.
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