Filter, IR Long Pass 2.40μm, 25.0mm dia., Germanium | Sciencetech Inc.


Filter, IR Long Pass 2.40μm, 25.0mm dia., Germanium

A Longpass filter designed for use with Sciencetech systems in the Infrared range.
Diameter (mm) 25.0
Diameter Tolerance (mm) +0.0 / -0.1
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.2
Clear Aperture (%) 90
Surface Accuracy (λ) 3 - 5
Surface Quality 60-40
Parallelism (arcminutes) <10
Transmission (%) >90
Transmission Wavelength (μm) 2.52 - 4.80
Optical Density OD >3.0
Cut-On Wavelength (μm) 2.40
Cut-On Wavelength Tolerance (μm) 0.09
Cut-On Tolerance (%) 5 of Peak Transmission
Slope Factor (%) <6
Substrate Germanium
Operating Temperature (°C) -62 to +71
RoHS Compliant

Please speak with your authorized Sciencetech technical sales staff for a full list of specifications.

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416.00 416.0 USD


SKU: 642-0090

Category: Filters

Price Valid in USD and only in North America

Additional Information

SKU 642-0090
Name Filter, IR Long Pass 2.40?m, 25.0mm dia., Germanium
Spectral Range Infrared
Solar Filters Other
Filter Size 2.5 to 5.0cm
Filter Type Long Pass
Filter Style Interference
Filter Style Interference
Spectral Range (nm) 300 - 15000
Thickness (mm) 1.0
Dimensions 25 mm
Transmission band (nm) 2400 - 15000 nm
Reflected / Absorbed Band 300-2400 nm


SCIENCETECH has built a reputation on custom solutions. Whether you need a small modification to an existing system or a completely novel design built from the ground up to meet your technical specifications, Sciencetech's engineering and optical design teams are ready to help.

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