SPECTRAL PURITY FILTER
    12.
    发明专利

    公开(公告)号:SG182568A1

    公开(公告)日:2012-08-30

    申请号:SG2012052643

    申请日:2010-12-08

    Abstract: A spectral purity filter includes a body of material, through which a plurality of apertures extend. The apertures are arranged to suppress radiation having a first wavelength and to allow at least a portion of radiation having a second wavelength to be transmitted through the apertures. The second wavelength of radiation is shorter than the first wavelength of radiation. The body of material is formed from tungsten-molybdenum alloy or a molybdenum-rhenium alloy or a tungsten-rhenium alloy or a tungsten-molybdenum-rhenium alloy.

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