Bandpass Filters with Size (mm) 12.5 mm dia. and FWHM 10 nm

Infrared Bandpass Filters

A bandpass filter is an inexpensive optical filter used as a wavelength selector that allows transmission of a predetermined wavelength while rejecting or blocking other wavelengths. Along with our wide selection of standard infrared filters, Optometrics designs and manufactures custom bandpass filters for instrument manufacturers world wide.

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  • Clinical chemistry instrumentation
  • Spectral radiometry
  • Environmental testing
  • Colorimetry
  • Elemental and laser line separation
  • Flame photometry
  • Color separation
  • Fluorescence
  • Immunoassays

Optical Bandpass Filter – Typical Transmission Curve

Bandpass Filter Terminology

Transmission Curves are graphs or mathematical functions that characterize optical filters. Typically expressed as the percent or fraction of light transmitted versus wavelength.

  • Bandwidth is a range of wavelength that specifies the transmitted part of the spectrum.
  • Central Wavelength (CWL) is the midpoint wavelength of the bandwidth.
  • Peak Transmittance is the maximum percentage of light transmission through the filter. It is often centered at the CWL, but many filters have fairly flat transmittance across the bandwidth.
  • Half Bandwidth (HBW) or Full Width-Half Maximium (FWHM) is the wavelength range that characterizes a bandpass filter. It is bound by the wavelengths where transmittance is half (50%) that of the peak transmission.
  • Upper and Lower Blocking Regions are the ranges of wavelengths where the light is attenuated.

Product SKUs

  • 1064 nm Laser Line Filter, 10 nm FWHM, 12.5 mm Dia.

    FL-1064-10-12.5
    $97.00
    2 in stock
    Add to cart

    Bandpass Filter Specifications | FL-1064-10-12.5

    CWL

    1064 nm

    CWL (Range)

    1000 – 1099 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    70%

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Operating Temperature Range

    -50° C to +70° C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 380 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    CWL: 380nm FWHM: 10nm
    F-380-10-12.5
    $109.00
    2 in stock
    Add to cart

    Bandpass Filter Specifications | F-380-10-12.5

    CWL

    380 nm

    CWL (Range)

    300 – 399 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    25

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 390 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    CWL: 390nm FWHM: 10nm
    F-390-10-12.5
    $84.00
    2 in stock
    Add to cart

    Bandpass Filter Specifications | F-390-10-12.5

    CWL

    390 nm

    CWL (Range)

    300 – 399 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    25

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 394 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    CWL: 394nm FWHM: 10nm
    F-394-10-12.5
    $84.00
    5 in stock
    Add to cart

    Bandpass Filter Specifications | F-394-10-12.5

    CWL

    394 nm

    CWL (Range)

    300 – 399 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    35

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 400 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    CWL: 400nm FWHM: 10nm
    F-400-10-12.5
    $84.00
    5 in stock
    Add to cart

    Bandpass Filter Specifications | F-400-10-12.5

    CWL

    400 nm

    CWL (Range)

    400 – 499 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    35

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 405 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    CWL: 405nm FWHM: 10nm
    F-405-10-12.5
    $71.00
    5 in stock
    Add to cart

    Bandpass Filter Specifications | F-405-10-12.5

    CWL

    405 nm

    CWL (Range)

    400 – 499 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    45

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Operating Temperature Range

    -50° C to +70° C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 410 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    Chart showing the typical performance of F-410-10-12.5.
    F-410-10-12.5
    $71.00
    2 in stock
    Add to cart

    Bandpass Filter Specifications | F-410-10-12.5

    CWL

    410 nm

    CWL (Range)

    400 – 499 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    45

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Operating Temperature Range

    -50° C to +70° C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 415 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    Chart showing the typical performance of F-415-10-12.5.
    F-415-10-12.5
    $71.00
    2 in stock
    Add to cart

    Bandpass Filter Specifications | F-415-10-12.5

    CWL

    415 nm

    CWL (Range)

    400 – 499 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    45

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Operating Temperature Range

    -50° C to +70° C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 420 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    Chart showing the typical performance of F-420-10-12.5.
    F-420-10-12.5
    $71.00
    1 in stock
    Add to cart

    Bandpass Filter Specifications | F-420-10-12.5

    CWL

    420 nm

    CWL (Range)

    400 – 499 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    45

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Operating Temperature Range

    -50° C to +70° C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

  • 430 nm Bandpass Filter, 10 nm FWHM, 12.5 mm Dia.

    Curve
    Chart showing the typical performance of F-430-10-12.5.
    F-430-10-12.5
    $71.00
    2 in stock
    Add to cart

    Bandpass Filter Specifications | F-430-10-12.5

    CWL

    430 nm

    CWL (Range)

    400 – 499 nm

    CWL Tolerance

    ± 2 nm

    FWHM

    10 nm

    FWHM Tolerance

    ± 2 nm

    Minimum Peak Transmission

    45

    Blocking

    ≥ 4 OD

    Blocking Range

    X-ray – 1200 nm

    Size (mm)

    12.5 mm dia.

    Size Tolerance

    +0, -0.2 mm

    Thickness

    7.5 mm

    Thickness Tolerance

    +0, -0.2 mm

    Clear Aperture

    9.0 mm

    Mount

    Aluminum, Black Anodized

    Ring Marking

    CWL, FWHM, Light Direction

    Specification Temperature

    23˚ C

    Operating Temperature Range

    -50° C to +70° C

    Humidity Resistance

    MIL-810-810E, Method 507.3, 5 Cycles

    Optical Quality

    Commercial

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