Scanning Mini-Chrom Monochromator

Scanning Mini-Chrom Monochromator

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.

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


Product Listing


  • Scanning Monochromator, 360 – 800 nm

    Scanning Mini-Chrom Monochromator Specifications | SMC1-08

    Resolution with 1 mm slits

    15.0 nm

    Operating Range

    360 – 800 nm

    f Number

    3.9

    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    0.8 nm

    Resolution with 100μ slits

    1.5 nm

    Resolution with 150μ slits

    2.3 nm

    Resolution with 300μ slits (included)

    4.5 nm

    Resolution with 600μ slits

    9.0 nm

    Grating Density

    900 grooves/mm

    Grating Blaze Wavelength

    500 nm

    Linear Dispersion (Center of Range)

    15.00 nm/mm

    Stray Light

    ≤ 0.02%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Wavelength Readability

    0.2 nm

    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

  • Scanning Monochromator, 750 nm – 1.7 μ

    Scanning Mini-Chrom Monochromator Specifications | SMC1-05

    Resolution with 1 mm slits

    15.40 nm

    Operating Range

    750 nm – 1.7 μ

    f Number

    3.9

    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    0.77 nm

    Resolution with 100μ slits

    1.54 nm

    Resolution with 150μ slits

    2.31 nm

    Resolution with 300μ slits (included)

    4.62 nm

    Resolution with 600μ slits

    9.24 nm

    Grating Density

    830 grooves/mm

    Grating Blaze Wavelength

    1.2 µ

    Linear Dispersion (Center of Range)

    15.42 nm/mm

    Stray Light

    ≤ 0.02%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Wavelength Readability

    0.2 nm

    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

  • Scanning Monochromator, 850 nm – 2.2 μ

    Scanning Mini-Chrom Monochromator Specifications | SMC1-06

    Resolution with 1 mm slits

    21.67 nm

    Operating Range

    850 nm – 2.2 μ

    f Number

    3.9

    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    1.08 nm

    Resolution with 100μ slits

    2.17 nm

    Resolution with 150μ slits

    3.25 nm

    Resolution with 300μ slits (included)

    6.50 nm

    Resolution with 600μ slits

    13.00 nm

    Grating Density

    600 grooves/mm

    Grating Blaze Wavelength

    1.6 µ

    Linear Dispersion (Center of Range)

    21.73 nm/mm

    Stray Light

    ≤ 0.02%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Wavelength Readability

    0.2 nm

    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