Name: 0.5 OD, 25mm Dia., Precision Anti-Reflection (AR) Coated Absorptive ND Filter
SKU: 16-055
Price: S$150.80

0.5 OD, 25mm Dia., Precision Anti-Reflection (AR) Coated Absorptive ND Filter

Precision Absorptive Neutral Density (ND) Filters

Stock #16-055 3-5 days

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S$150^.80

Qty 1-10
S$150.80

Qty 11+
S$136.30

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EO Spec Sheet Download All

Specifications

General

Type:

Neutral Density Filter

Physical & Mechanical Properties

Diameter (mm):

25.00

Thickness (mm):

2.11 (nominal)

Clear Aperture (%):

Parallelism (arcsec):

<30

Optical Properties

Optical Density OD (Average):

0.5 ±10% @ 550nm

Glass/Filter Number:

SCHOTT NG5

ND Filter Glass

Coating:

BBAR (450-700nm)

Index of Refraction (n_d):

1.50

Surface Quality:

80-50

Transmission (%):

31.62

Blocking Wavelength Range (nm):

400 - 700

Transmitted Wavefront, P-V:

λ/4

Coating Specification:

R_avg ≤1.0% @ 450 - 700nm @ 0°

Material Properties

Transformation Temperature (°C):

474

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

REACH 241:

Compliant

Product Details

λ/4 Transmitted Wavefront Distortion
AR Coated for 450 - 700nm
Optical Densities from 0.1 to 4.0 Available
Absorptive Neutral Density (ND) Filters Also Available

Precision Anti-Reflection (AR) Coated Absorptive Neutral Density (ND) Filters feature SCHOTT NG Colored Glass substrates that are polished to achieve a transmitted wavefront distortion (TWFD) specification of λ/4. These filters are coated on both surfaces with an anti-reflection (AR) coating from 450 - 700nm, reducing back reflections and enabling filter stacking with less losses and artifacts. Precision Anti-Reflection (AR) Coated Absorptive Neutral Density (ND) Filters are available with optical densities from 0.1 to 4.0 and can be stacked together to achieve custom optical densities to meet application requirements. These neutral density filters are available in 25mm diameter or 50mm square sizes and are ideal for machine vision, imaging, or low power laser applications.

Technical Information

Accessories

Imaging Lens Selector

Frequently Purchased Together

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#45-929 - 20mm Dia. x -20mm FL, VIS-NIR Coated, Double-Concave Lens

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Check out our full selection of mounts here.

Resources

Filter

Understanding Neutral Density Filters

Neutral Density (ND) Filters are designed to evenly reduce transmission. For more information on specifications and products, read more at Edmund Optics.

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What is an ND Filter?

View Now

Can I place ND filters back-to-back and increase optical density?

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What is the difference between using an absorptive ND filter and a reflective ND filter?

View Now

How should I orient my reflective ND or interference filter?

View Now

Continuously Variable Apodizing Filter

View Now

Neutral Density Filter (ND)

View Now

Optical Filters

Do you want to learn about optical filters? Find terminology, fabrication techniques, a selection guide, and application examples at Edmund Optics.

View Now

How do I clean my filters?

View Now

What is the largest diameter filter available from Edmund Optics®?

View Now

What are some of the most common filter substrates?

View Now

How do I select the right filter for my application?

View Now

What types of filters can Edmund Optics® manufacture?

View Now

Filter

View Now

Optical Density (OD)

View Now

Stopband

View Now

Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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Transmission

View Now

How do I clean my optics?

View Now

Clear Aperture (CA)

View Now

Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

View Now

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

View Now

Surface Quality

View Now

0.5 OD, 25mm Dia., Precision Anti-Reflection (AR) Coated Absorptive ND Filter

Specifications

General

Physical & Mechanical Properties

Optical Properties

Material Properties

Regulatory Compliance

Product Details

Technical Information

Accessories

Related Products

Imaging Lens Selector

Frequently Purchased Together

Compatible Mounts

Resources

Understanding Neutral Density Filters

What is an ND Filter?

Can I place ND filters back-to-back and increase optical density?

What is the difference between using an absorptive ND filter and a reflective ND filter?

How should I orient my reflective ND or interference filter?

Continuously Variable Apodizing Filter

Neutral Density Filter (ND)

Optical Filters

How do I clean my filters?

What is the largest diameter filter available from Edmund Optics®?

What are some of the most common filter substrates?

How do I select the right filter for my application?

What types of filters can Edmund Optics® manufacture?

Filter

Optical Density (OD)

Stopband

Removing Protective Plastic Coating

Transmission

How do I clean my optics?

Clear Aperture (CA)

Edmund Optics Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Surface Quality