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825nm 50mm Diameter, OD 2 Longpass Filter

Stock #64-690
$185.00
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Qty 1-5
$185.00
Qty 6-25
$149.00
Qty 26+
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Diameter (mm):
50.00 +0.00/-0.20
Cut-On Wavelength (nm):
825
Rejection Wavelength (nm):
625 - 785
Transmission Wavelength (nm):
855 - 2000
Thickness (mm):
5.00
Thickness Tolerance (mm):
±0.1
Wavelength Range (nm):
625 - 2000
Angle of Incidence (°):
0
Coating:
Traditional Coated
Substrate:
UV Grade Fused Silica
Optical Density OD:
≥2.0
Surface Quality:
40-20
Transmission (%):
>85
Type:
Longpass Filter
Clear Aperture (%):
80
Transmitted Wavefront, P-V:
λ/4
Cut-On Tolerance (%):
±2
Slope Factor (%):
3.00
Coating Specification:
Surface 1: Multi-Layer Dielectric
Surface 2: MgF2
RoHS:

Product Family Description

  • Sharp Cut-On Wavelength
  • High Rejection/Transmission Efficiency
  • Precision Fused Silica Substrate

Our TECHSPEC® OD 2 Longpass filters are designed to have a sharp transition from reflection to transmission, making them ideal for various applications. Available in a variety of cut-on wavelengths, these filters are designed for fluorescence and order sorting applications. Eliminate stray light by creating custom bandpass filters when combined with our TECHSPEC® OD 2 Shortpass Filters. A single layer AR coating on the back surface enhances the overall efficiency of each filter.

Our OD 2 longpass filters are available in a number of kit configurations. Visible filter kits are available in 25nm increments (featuring 14 filters) or 50nm increments (featuring 7 filters). NIR Kits are available in 50nm increments (featuring 8 filters). All filter kits are available in 12.5, 25, and 50mm diameters.

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