Graticules

  • Precision optical slit – Chrome on Glass

    Precision optical slit – Chrome on Glass

    Substrate: B270
    Dimensional Tolerance: -0.1mm
    Thickness Tolerance: ±0.05mm
    Surface Flatness:3(1)@632.8nm
    Surface Quality: 40/20
    Line Width: 0.1mm & 0.05mm
    Edges: Ground , 0.3mm max. Full width bevel
    Clear Aperture: 90%
    Parallelism:<5”
    Coating: High optical density opaque chrome,Tabs<0.01%@Visible Wavelength

  • Stage micrometers calibration scales grids

    Stage micrometers calibration scales grids

    Substrate: B270
    Dimensional Tolerance: -0.1mm
    Thickness Tolerance: ±0.05mm
    Surface Flatness:3(1)@632.8nm
    Surface Quality: 40/20
    Line Width: 0.1mm & 0.05mm
    Edges: Ground , 0.3mm max. Full width bevel
    Clear Aperture: 90%
    Parallelism:<5”
    Coating: High optical density opaque chrome,Tabs<0.01%@Visible Wavelength
    Transparent Area, AR: R<0.35%@Visible Wavelength