Scanning Mini-Chrom Monochromator with Operating Range 500 nm - 1.2 μ

Optometrics Scanning Monochromator

The Scanning Mini-Chrom Monochromator (SMC) is designed to be driven by stepping or servo controlled motors. No direct visual wavelength readout is provided. All models utilize a precision lead screw/sine bar mechanism to rotate the diffraction grating which sequentially positions the selected wavelength(s) at the exit slit. Rotation of the drive shaft in a clockwise direction proportionately increases the wavelength at the exit slit.

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Scanning Mini-Chroms are used in applications requiring either single or repetitive scans of wavelength intervals or the sequential selection of discrete wavelengths. To prevent mechanical damage due to inadvertently exceeding wavelength  limits, all Scanning Mini-Chroms are supplied with dual photosensors that function as high and low limit switches.

Product SKUs

  • Scanning Monochromator, 500 nm – 1.2 μ

    Grating Curve
    1200 Line 750nm Ruled (Models 04)
    1 in stock
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    Scanning Mini-Chrom Monochromator Specifications | SMC1-04

    Operating Range

    500 nm – 1.2 μ

    f Number


    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    0.53 nm

    Resolution with 100μ slits

    1.06 nm

    Resolution with 150μ slits

    1.59 nm

    Resolution with 300μ slits (included)

    3.19 nm

    Resolution with 600μ slits

    6.37 nm

    Resolution with 1 mm slits

    10.62 nm

    Grating Density

    1200 grooves/mm

    Grating Blaze Wavelength

    750 nm

    Linear Dispersion (Center of Range)

    10.66 nm/mm

    Stray Light

    ≤ 0.02%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Drive Hystersis

    3.6° typical; 14° maximum

    Operating Temperature Range

    -20° C to +80° C

    Damage Threshold: Pulsed

    350 mJ /cm², 200 nano sec. pulse

    Damage Threshold: CW laser

    40 Watt/cm²

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