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750 nm Short Pass, 25.4 mm Dia.
Short Pass Filter Specifications | SP-750-25
Cut-Off Wavelength
750 nm
Cut-Off Wavelength (Range)
701 – 899 nm
Cut-Off Tolerance
±3 nm
Transmission Region
Cut-off λ to 525 nm
Minimum Peak Transmission
80%
Slope (OD 0.3 to 4.0)
≤ 5%
Blocking
10-4 Min. / 10-5 Avg. to 975 nm
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
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800 nm Short Pass, 25.4 mm Dia.
Short Pass Filter Specifications | SP-800-25
Cut-Off Wavelength
800 nm
Cut-Off Wavelength (Range)
701 – 899 nm
Cut-Off Tolerance
±15 nm
Transmission Region
Cut-off λ to 560 nm
Minimum Peak Transmission
80%
Slope (OD 0.3 to 4.0)
≤ 5%
Blocking
10-4 Min. / 10-5 Avg. to 1,040 nm
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
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850 nm Short Pass, 25.4 mm Dia.
Short Pass Filter Specifications | SP-850-25
Cut-Off Wavelength
850 nm
Cut-Off Wavelength (Range)
701 – 899 nm
Cut-Off Tolerance
±15 nm
Transmission Region
Cut-off λ to 595 nm
Minimum Peak Transmission
80%
Slope (OD 0.3 to 4.0)
≤ 5%
Blocking
10-4 Min. / 10-5 Avg. to 1,105 nm
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
Optometrics
Shortpass Filters with Mount Aluminum, Black Anodized and Cut-Off Wavelength (Range) 701 - 899 nm and Size (mm) 25 mm dia.
Short Wavepass Filters
A shortpass filter or short wavepass filter (SP filter) is a filter that transmits at shorter wavelengths and rejects longer wavelengths. By design, the transition in a shortpass filter between the 50% cut-off or cut-on to rejection is quite sharp. This makes it much easier to separate excitation from emitted wavelengths without interfering with wavelengths of interest. Short wavepass filters are useful in applications where spectral noise reduction is important or for isolating a particular region of the spectrum.
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- Available every 50nm from 450nm to 1000nm
- Mounted in a black anodized aluminium ring
- Use in combination with longpass filters for custom bandpass filtering
- Fine tune cut-on wavelengths by changing angle of incidence
- Emission filters in fluorescence applications
- Eliminate unwanted radiation over ultraviolet, visible, or infrared
- Ideal for Raman spectroscopy
- Order sorting filters
- Astronomy applications to study IR radiation without visible light
- Laser-induced fluorescence to isolate source radiation
