IR Neutral Density Filters
IR Neutral Density Filters
IR Neutral Density (ND) Filters from Andover Corporation utilize advanced metallic-alloy coatings on specialized substrates to achieve precise light attenuation in the infrared spectrum. Unlike traditional dielectric or absorption filters, these filters combine both absorption and reflection mechanisms to reduce light intensity, delivering superior spectral neutrality and performance across broad wavelength ranges. Our IR ND filters are engineered to maintain exceptional linearity and durability while outperforming competing products in the market.
- Superior spectral neutrality across broad wavelength ranges
- Linear attenuation characteristics
- Exceptional durability for long-term reliability
- Custom substrate options available
- Consistent performance across operating conditions
- High damage threshold
- Excellent environmental stability
- Custom specifications available
- Thermal Imaging Systems
- Medical Imaging Equipment
- IR Test and Measurement
- IR Photography
- Spectroscopy
- Process Control
- Research & Development
- Optical Testing
- Dimensional Tolerances: ±0.02mm
- Thickness: 1.0mm
- Minimum Clear Aperture: 90% of outside dimension
- Surface Quality: 80/50 per MIL-O-13830B
- Coating Quality: 80/50 per MIL-O-13830B
- Coating Adherence: Per MIL-M-13508C
- Humidity Resistance: Per MIL-STD-810F
- Substrate Material: Germanium
- Flatness: <5 waves per 25mm
- Parallelism: 10 arc minutes or better
- Mounting: Unmounted (custom mounting available)
Showing 1–16 of 48 results
- Specifications: 50.0% ± 4.0 % from 2.0µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 12.5 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 50.0% ± 4.0 % from 2.0µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 25.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: - 50% ±4.0 % from from 5200nm - 7000nm- A/R 1.0% Rx (avg) from 5200nm - 7000nm
- Parallelism: <10 arc min
- Size: 25.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: <= 1 waves at 5800nm
- Substrate Material: Ge
- Specifications: 50.0% ± 4.0 % from 2.0µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 50.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: - 50% ±4.0 % from from 5200nm - 7000nm- A/R 1.0% Rx (avg) from 5200nm - 7000nm
- Parallelism: <10 arc min
- Size: 50.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: <= 1 waves at 5800nm
- Substrate Material: Ge
- Specifications: 31.6% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 12.5 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 31.6% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 25.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: - 31.6% ±2.0 % from from 5200nm - 7000nm- A/R 1.0% Rx (avg) from 5200nm - 7000nm
- Parallelism: <10 arc min
- Size: 25.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: <= 1 waves at 5800nm
- Substrate Material: Ge
- Specifications: 31.6% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 50.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: - 31.6% ±2.0 % from from 5200nm - 7000nm- A/R 1.0% Rx (avg) from 5200nm - 7000nm
- Parallelism: <10 arc min
- Size: 50.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: <= 1 waves at 5800nm
- Substrate Material: Ge
- Specifications: 25.0% +/-2.0% from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 12.5 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 25.0% +/-2.0% from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 25.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 25.0% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 50.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 20.0% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 12.5 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 20.0% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 25.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
- Specifications: 20.0% ±2.0 % from 2µ to 14µ
- Parallelism: < 10 arc minutes
- Size: 50.0 Ø +0.0 / -0.2
- Thickness: 1.0 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90% of OD
- Flatness: 1λ or better at λ of Interest
- Substrate Material: Ge
PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
$210.00
$176.00
$149.00
In Stock
$419.00
$352.00
$297.00
In Stock
$511.00
$429.00
$363.00
In Stock
$863.00
$725.00
$613.00
In Stock
$946.00
$795.00
$672.00
In Stock
$210.00
$176.00
$149.00
In Stock
$419.00
$352.00
$297.00
In Stock
$511.00
$429.00
$363.00
In Stock
$863.00
$725.00
$613.00
In Stock
$946.00
$795.00
$672.00
In Stock
$210.00
$176.00
$149.00
In Stock
$419.00
$352.00
$297.00
In Stock
$863.00
$725.00
$613.00
In Stock
$210.00
$176.00
$149.00
In Stock
$419.00
$352.00
$297.00
In Stock
$863.00
$725.00
$613.00
In Stock