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All Products / Optics / Optical Filters / Longpass Filters / OD 2.0 Longpass Filters
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

975nm 25mm Diameter, OD 2.0 Longpass Filter

OD 2.0 Longpass Filters

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Stock #64-686 Clearance In Stock
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C$70.56 C$176.40
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C$70.56 C$176.40
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Diameter (mm):
25.00 +0.00/-0.20
Angle of Incidence (°):
0
Optical Density OD (Average):
≥2.0
Cut-On Wavelength (nm):
975.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Coating:
Traditional Coated
Rejection Wavelength (nm):
735 - 925
Surface Quality:
40-20
Thickness (mm):
3.00
Thickness Tolerance (mm):
±0.1
Transmission (%):
>85
Transmission Wavelength (nm):
1010 - 2000
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
Wavelength Range (nm):
735 - 2000

Regulatory Compliance

RoHS:
Compliant
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Reach 224:
Compliant
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Certificate of Conformance:
View
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Product Family Description

  • Sharp Cut-On Wavelength
  • High Rejection/Transmission Efficiency
  • Precision Fused Silica Substrate
  • Variety of OD 2.0 Longpass Filter Kits are Available

TECHSPEC® OD 2.0 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. These filters feature precision fused silica substrate and high rejection/transmission efficiency. TECHSPEC® OD 2.0 Longpass Filters have a single-layer AR coating on the back surface that enhances the overall efficiency of each filter.Eliminate stray light by creating custom bandpass filters when combined with TECHSPEC® OD 2.0 Shortpass Filters. A single layer AR coating on the back surface enhances the overall efficiency of each filter.

Note: Due to supply chain issues, our kits may be delivered with an alternative packaging solution in place of a wooden box. For any questions, please contact [email protected].