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700 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-700-10-25
CWL
700 nm
CWL (Range)
700 – 799 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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700 nm Bandpass Filter, 40 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-700-40-25
CWL
700 nm
CWL (Range)
700 – 799 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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710 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-710-10-25
CWL
710 nm
CWL (Range)
700 – 799 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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720 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-720-10-25
CWL
720 nm
CWL (Range)
700 – 799 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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730 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-730-10-25
CWL
730 nm
CWL (Range)
700 – 799 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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740 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-740-10-25
CWL
740 nm
CWL (Range)
700 – 799 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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750 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-750-10-25
CWL
750 nm
CWL (Range)
700 – 799 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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750 nm Bandpass Filter, 40 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-750-40-25
CWL
750 nm
CWL (Range)
700 – 799 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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760 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-760-10-25
CWL
760 nm
CWL (Range)
700 – 799 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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770 nm Bandpass Filter, 10 nm FWHM, 25.0 mm Dia.
Bandpass Filter Specifications | F-770-10-25
CWL
770 nm
CWL (Range)
700 – 799 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) 700 - 799 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.