Diameter (mm):

50.00 +0.0/-0.1

Optical Density OD (Average):

≥3.0

Cut-On Wavelength (nm):

2400.00

Germanium (Ge)

Operating Temperature (°C):

-62 to +71

Coating:

Traditional Coated

Surface Quality:

80-50

Thickness (mm):

1.00

Thickness Tolerance (mm):

±0.2

Transmission (%):

>85

Transmission Wavelength (nm):

2520 - 4800

Transmission Wavelength (μm):

2.52 - 4.80

Type:

Longpass Filter

Blocking Wavelength Range (nm):

200 - 2400

Parallelism (arcmin):

<10

Clear Aperture (%):

Slope Factor (%):

Cut-On Wavelength (μm):

2.40 ±0.09

Note:

Transmission at cut-on wavelength is 5% of peak transmission.

Surface Flatness (P-V):

3 - 5λ

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 233:

Compliant

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.

Title	Type	Stock Number	Price	Buy
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-666	S$160.50 Qty 10+ S$144.45 Request Quote	3-5 days ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-669	S$154.50 Qty 10+ S$139.05 Request Quote	3-5 days ×
50.0/50.8mm Optic Dia., Optical Cell Assembly	Fixed	#36-465	S$211.50 Qty 10+ S$187.50 Request Quote	3-5 days ×
50.0/50.8mm Optic Dia., Precision Gimbal Mount	Adjustable - Gimbal	#55-000	S$703.50 Qty 5+ S$633.15 Request Quote	3-5 days ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder	Fixed	#55-530	S$151.50 Qty 10+ S$136.35 Request Quote	Contact Us ×
50.0/50.8mm Optic Dia., X-Y Translating Optic Mount	Adjustable - Linear (XY)	#62-957	S$423.00 Qty 5+ S$401.85 Request Quote	3-5 days ×
50.0/50.8mm Optic Dia., X-Y-Z Translating Optic Mount	Adjustable - Linear (XYZ)	#62-960	S$828.00 Qty 5+ S$786.60 Request Quote	3-5 days ×
50.0mm Optic Dia., Optic Mount	Fixed	#64-567	S$85.50 Qty 10+ S$76.95 Request Quote	3-5 days ×
50.0mm Optic Dia., Optic Mount	Fixed	#64-568	S$85.50 Qty 10+ S$76.95 Request Quote	3-5 days ×
50.0/50.8mm Optic Dia., 5 Axes Optical Mount	Adjustable - Linear (XYZ) & Tip-Tilt	#13-778	S$1,152.00 Qty 5+ S$1,094.40 Request Quote	3-5 days ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp	Fixed	#16-078	S$550.50 Qty 5+ S$485.55 Request Quote	3-5 days ×
50.0/50.8mm Optic Diameter, X-Y Translating Optic Mount, Quick Start Optical Mounts	Adjustable - Linear (XY)	#17-514	S$484.05 Request Quote	Contact Us ×
50.0mm Optic Dia., Fixed Optic Mount, Quick Start Optical Mounts	Fixed	#17-516	S$147.45 Request Quote	Contact Us ×
50/50.8mm ID, Precision Gimbal Mount, Quick Start Optical Mounts	Adjustable - Gimbal	#17-518	S$767.85 Request Quote	Contact Us ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts	Fixed	#17-530	S$215.55 Request Quote	Contact Us ×

2.40μm, 50mm Diameter, Infrared Longpass Filter

Regulatory Compliance

Product Family Description