Producing successive measurement light beams of different wavelengths - using spectral separator and mask at input or output point of separator

    公开(公告)号:DE3005352A1

    公开(公告)日:1981-08-20

    申请号:DE3005352

    申请日:1980-02-13

    Abstract: The optical arrangement is for the generation of successive measurement beams of different wavelength from the beam from a polychromatic source (1) is applicable to testing absorption and emission. A large number of wavelengths can be rapidly provided within a given spectral range. This is for example the visible and ultraviolet or the rear infrared range, and the entire range can be repeated five times per second. A masking device (5) can be placed at the light input or output of a spectral separator (3). If the mask is at the input point only one gap (6a-6e) is illuminated at any time and only one monochromatic measurement beam is produced. If the mask is at the output point different monochromatic beams pass to the gaps and are selected by a successive gap opening and closing mechanism.

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