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800 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-800-10-25
CWL
800 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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800 nm Bandpass Filter, 40 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-800-40-25
CWL
800 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 8 nm
FWHM
40 nm
FWHM Tolerance
± 8 nm
Minimum Peak Transmission
70%
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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810 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-810-10-25
CWL
810 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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830 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-830-10-25
CWL
830 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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830 nm Laser Line Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | FL-830-10-25
CWL
830 nm
CWL (Range)
800 – 899 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)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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840 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-840-10-25
CWL
840 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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850 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-850-10-25
CWL
850 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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850 nm Bandpass Filter, 40 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-850-40-25
CWL
850 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 8 nm
FWHM
40 nm
FWHM Tolerance
± 8 nm
Minimum Peak Transmission
70%
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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860 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-860-10-25
CWL
860 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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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870 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-870-10-25
CWL
870 nm
CWL (Range)
800 – 899 nm
CWL Tolerance
± 2 nm
FWHM
10 nm
FWHM Tolerance
± 2 nm
Minimum Peak Transmission
55
Blocking
≥ 4 OD
Blocking Range
X-ray – 1200 nm
Size (mm)
25.0 mm dia.
Size Tolerance
+0, -0.1 mm
Thickness
7.5 mm
Thickness Tolerance
+0, -0.2 mm
Clear Aperture
21.0 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
Optometrics
Bandpass Filters with CWL (Range) 800 - 899 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
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.