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1.05μm, 50mm Diameter, Infrared Longpass Filter

Infrared (IR) Longpass Filters

Infrared (IR) Longpass Filters

Stock #68-657
$370.00
Qty 1-5
$370.00
Qty 6
$333.00
Volume Pricing
Request Quote
Diameter (mm):
50.00 +0.0/-0.1
Cut-On Wavelength (nm):
1050.00
Blocking Wavelength Range (nm):
200 - 1050
Transmission Wavelength (μm):
1.10 - 2.10
Thickness (mm):
1.00
Thickness Tolerance (mm):
±0.2
Transmission Wavelength (nm):
1100 - 2100
Optical Density OD (Average):
≥3.0
Coating:
Traditional Coated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Silicon (Si)
Operating Temperature (°C):
-62 to +71
Surface Quality:
60-40
Transmission (%):
>85
Type:
Longpass Filter
Parallelism (arcmin):
<10
Clear Aperture (%):
90
Cut-On Tolerance (%):
5% of Peak Transmission
Slope Factor (%):
<12
Cut-On Wavelength (μm):
1.05
Cut-On Wavelength Tolerance (μm):
0.04
Surface Flatness:
3 - 5λ

Regulatory Compliance

RoHS 2015:
Reach 209:

Product Family Description

  • Coated on Silicon or Germanium Substrates
  • Ideal for Isolating Broad Spectral Regions
  • Durable, First-Surface Coatings

Longpass filters provide a sharp cut-off below a particular wavelength. Often used for order sorting, they isolate broad regions of the spectrum, simultaneously providing high transmission of desired energy, and deep rejection of unwanted energy. Constructed of hard, durable first-surface dielectric coatings on optical-quality IR-transmitting substrates, these Infrared (IR) Longpass Filters will withstand normal cleaning and handling associated with any high-quality optical component. These filters are particularly useful for FTIR spectroscopy and Thermal Imaging Applications. For custom sizes and coating requirements, please contact our Sales Department.

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