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

Precision Absorptive Neutral Density (ND) Filters

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Stock #16-071 Contact Us
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₹8,096
Volume Pricing
Qty 1-10 ₹8,096 each
Qty 11-25 ₹7,318 each
Qty 26-49 ₹6,617 each
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Specifications

General

Type:
Neutral Density Filter

Physical & Mechanical Properties

Diameter (mm):
25.00
Thickness (mm):
2.44 (nominal)
Clear Aperture (%):
90
Parallelism (arcsec):
<30

Optical Properties

Optical Density OD (Average):
2.5 ±10% @ 550nm
Glass/Filter Number:
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
ND Filter Glass
Coating:
BBAR (450-700nm)
Index of Refraction (nd):
1.51
Surface Quality:
80-50
Transmission (%):
0.32
Blocking Wavelength Range (nm):
400 - 700
Transmitted Wavefront, P-V:
λ/4
Coating Specification:
Ravg ≤1.0% @ 450 - 700nm @ 0°

Material Properties

Transformation Temperature (°C):
462

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
REACH 241:

Product Details

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

Compatible Mounts

 
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