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See all 108 Products in Family

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

975nm 50mm Dia., High Performance Longpass Filter

High Performance OD 4.0 Longpass Filters

Stock #86-081

$485.00

Qty 1-5
$485.00

Qty 6
$388.00

Volume Pricing
Request Quote

Curve eDrawing: eprt IGES PDF Drawing STEP: step

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Diameter (mm):

50.00 +0.0/-0.2

Cut-On Wavelength (nm):

975.00

Thickness (mm):

5.00

Thickness Tolerance (mm):

±0.1

Rejection Wavelength (nm):

200 - 955

Transmission Wavelength (nm):

990 - 1650

Wavelength Range (nm):

200 - 1650

Angle of Incidence (°):

Optical Density OD (Average):

≥4.0

Coating:

Hard Coated

UV Grade Fused Silica

Surface Quality:

60-40

Transmission (%):

≥91

Type:

Longpass Filter

Clear Aperture (%):

>80

Durability:

MIL-C-48497A, Section 3.4.1

Transmitted Wavefront, RMS:

≤λ/4 @ 633nm

Cut-On Tolerance (%):

±1

Slope Factor (%):

Note:

Arrow on part indicates filter coated surface.

Coating Specification:

Surface 1: Hard Dielectric Sputtered
Surface 2: MgF₂

Regulatory Compliance

RoHS 2015:

Compliant

Reach 209:

Compliant

Product Family Description

Cut-On Slope <1%
Rejection OD ≥ 4.0
≥91% Transmission in Pass Band
Variety of OD 4.0 Longpass Filter Kits Available

Our High Performance Longpass filters feature high transmission in the pass band combined with superior blocking in the rejection band. With a rejection band optical density of 4.0 combined with >91% in the pass band these filters are ideal for a wide variety of applications. Eliminate stray light by creating custom bandpass filters when combined with our TECHSPEC® High Performance Shortpass Filters.

Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm² @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value.

Our TECHSPEC® Rotating Filter Wheel can be used for applications requiring a variety of filters.

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