Longpass Filter
Range of Dielectric Longpass Optical Filters
High performance filters for spectroscopy measurements
Overview | Specifications | Gallery | Related Products | Resources and Support
Longpass optical filters from Ossila for isolating regions of the electromagnetic spectrum for use in fluorescence measurements, absorption measurements, and more. Our filters have >90% transmission in the region of transmittance and are OD4 in the suppressed region (~0.01% transmission).
Each individual filter is housed in an outer ring to aid in handling and enhance the OD through prevention of scattering. The ring is labelled as longpass along with the cut-on wavelength.
For more comprehensive applications, you can buy our longpass optical filter set.
Specifications
| Dimension | Ø25.0 mm |
|---|---|
| Thickness | 4.0 mm |
| Optical Density | 4 |
Longpass Transmission Data
400 nm Longpass Optical Filter transmission
450 nm Longpass Optical Filter transmission
500 nm Longpass Optical Filter transmission
550 nm Longpass Optical Filter transmission
600 nm Longpass Optical Filter transmission
650 nm Longpass Optical Filter transmission
700 nm Longpass Optical Filter transmission
| Optical Filters Included | Cut-on Wavelength |
|---|---|
| G2101A1 | 400 nm |
| G2101B1 | 450 nm |
| G2101C1 | 500 nm |
| G2101D1 | 550 nm |
| G2101E1 | 600 nm |
| G2101F1 | 650 nm |
| G2101G1 | 700 nm |
Longpass Optical Filter Gallery
Related Products
Resources and Support
Choosing a Light Source for Your Spectrometer
The light source you will need to use depends on the measurements you are doing.
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Choosing a Sample Holder for Spectroscopy
A designated sample holder is one of the most important pieces of equipment you need in spectroscopy.
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