Long Pass Filters

1250 nm Long Pass, 25 mm Dia.

LP-1250-25
Price: $70.00

Long Pass Filter Specifications | LP-1250-25

Cut-On Wavelength

1250 nm

Cut-On Tolerance

±15 nm

Transmission Region

Cut-on λ to 2.2 µ minimum

Minimum Peak Transmission

70%

Slope (OD 0.3 to 4.0)

3%

Blocking

10-4 Int. Min. / 10-5 Int. Avg.

Blocking Range

200 nm-Cut On λ

Size (mm)

25 mm dia.

Size Tolerance

+0.0/-0.2 mm

Thickness

6.3 mm

Thickness Tolerance

+0.0/-0.2 mm

Scratch/Dig

80/50

Clear Aperture

21 mm

Mount

Aluminum, Black Anodized

Operating Temperature Range

-20⁰ C to 75⁰ C

Cut-On Wavelength (Range)

1101 – 1300 nm

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    Standard Mini-Chrom Monochromator Specifications | MC1-03

    Resolution with 1 mm slits

    7.27 nm

    Operating Range

    300 – 800 nm

    f Number

    3.9

    Focal Length

    74 mm

    Beam Path

    In Line

    Resolution with 50μ slits

    0.36 nm

    Resolution with 100μ slits

    0.73 nm

    Resolution with 150μ slits

    1.09 nm

    Resolution with 300μ slits

    2.18 nm

    Resolution with 600μ slits

    4.36 nm

    Grating Type

    Holographic

    Grating Density

    1800 grooves/mm

    Grating Blaze Wavelength

    500 nm

    Grating Size

    2 cm2

    Linear Dispersion (Center of Range)

    7.16 nm/mm

    Stray Light

    ≤ 0.003%

    Wavelength Accuracy

    ± 0.2% of λ

    Wavelength Reproducibility

    ± 0.15%

    Wavelength Readability

    0.2 nm

    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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