Optical layouts of the WSO-UV spectrographs

World Space Observatory-Ultraviolet project is an international space observatory for spectroscopy and imaging in 115–310 nm spectral range. Significant progress in the CCD development allows to use the back illuminated CCD detectors with anti-reflection coating for observations in this ultraviolet domain instead of MCP detectors. This detector change was one of the main reason for significant correction of layouts of all three WSO-UV spectrographs. In this paper we present the final optical layouts that are now being realized in the WUVS instrument. The using of implemented technological changes in optical layout allows to keep main requirements to WSO-UV spectrographs.

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