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  • 400–1100nm Reflective Neutral Density Filter 6% Transmission
  • 400–1100nm Reflective Neutral Density Filter 6% Transmission
  • 400–1100nm Reflective Neutral Density Filter 6% Transmission
  • 400–1100nm Reflective Neutral Density Filter 6% Transmission
400–1100nm Reflective Neutral Density Filter 6% Transmission400–1100nm Reflective Neutral Density Filter 6% Transmission400–1100nm Reflective Neutral Density Filter 6% Transmission400–1100nm Reflective Neutral Density Filter 6% Transmission

400–1100nm Reflective Neutral Density Filter 6% Transmission

  • Product Item : RP400-1100NMOF
  • Category: Optical Filters
  • Wide spectral range: 400–1100nm
  • Fixed transmission: 6%
  • Reflective-type neutral density design to minimize heat
  • size :customize
  • INQUIRY   EMAIL

400–1100nm Reflective Neutral Density Filter, 6% Transmission

The 400–1100nm Reflective Neutral Density (ND) Attenuation Filteris designed to provide 

controlled and stable light reduction across the visible to near-infrared spectrum.

With a fixed6% transmission, this optical ND filter provides predictable attenuation 

while maintaining excellent spectral consistency across the specified wavelength range.

A reflective neutral density design is used to reduce light intensity primarily 

through controlled reflection rather than relying solely on absorption. 

This can help reduce thermal loading compared with absorptive attenuation solutions in suitable optical systems.

The filter is manufactured using a premium optical glass substrate with 

a high-precision multilayer reflective coating, providing reliable optical performance, durability and long-term stability.

Key Features

400–1100nm Wide Spectral Range

The filter covers a broad spectral range from400nm to 1100nm, extending from the visible region into the near-infrared spectrum.

This makes it suitable for optical systems requiring broadband attenuation across multiple wavelengths.

Fixed 6% Transmission

The standard filter provides6% transmission.

This allows the filter to reduce incoming optical intensity to a controlled level while maintaining a broad spectral response.

For systems requiring different attenuation levels, customized transmission specifications can also be discussed.

Reflective Neutral Density Design

The reflective ND design attenuates optical energy through controlled reflection.

Compared with absorptive neutral density filters, reflective attenuation 

can help reduce heat absorption in suitable high-power optical systems.

High-Precision Multilayer Coating

A multilayer reflective neutral density coating is applied to the optical glass substrate.

The coating is designed to provide uniform attenuation 

and stable spectral performance throughout the specified operating range.

Optical-Grade Glass Substrate

The filter uses premium optical-grade glass with high surface quality.

The substrate provides a stable foundation for the precision multilayer 

coating and supports integration into professional optical systems.

Optical Performance Advantages


  • Uniform attenuation across 400–1100nm
  • Fixed 6% transmission
  • Excellent spectral consistency
  • Low thermal load through reflective attenuation design
  • High spectral flatness
  • Stable optical performance
  • High environmental stability
  • High thermal stability
  • Long service life
  • Suitable for precision optical systems


Product Specifications

Parameter Specification
Product Name 400–1100nm Reflective Neutral Density Filter
Filter Type Neutral Density Attenuation Filter
Spectral Range 400–1100nm
Standard Transmission 6%
Optical Design Reflective
Attenuation Type Neutral Density
Substrate Premium Optical Glass
Coating Multilayer Reflective ND Coating
Spectral Performance Uniform Attenuation
Spectral Flatness Excellent
Thermal Performance Reduced Heat Absorption Design
Environmental Stability High
Thermal Stability High
Size Standard & Custom
Thickness Standard & Custom
Transmission Custom Options Available
OEM / ODM Available

Applications

Laser Power Attenuation

The filter can be used to reduce optical intensity in laser systems and help control the optical power reaching downstream components.

Optical Measurement and Calibration

Suitable for optical measurement systems where controlled light attenuation is required.

Imaging Systems

Can be integrated into imaging and vision systems to reduce excessive optical intensity and help manage detector exposure.

Laboratory Instruments

Suitable for optical experiments, scientific instruments and laboratory measurement systems.

Industrial Optical Equipment

Can be used in industrial optical assemblies requiring stable broadband attenuation.

Optical Testing Systems

Suitable for systems requiring repeatable and controlled optical attenuation across a broad spectral range.

Customization & OEM Services

We provide OEM and customized optical filter manufacturing based on customer requirements.

Available customization options include:


  • Non-standard dimensions
  • Custom diameter
  • Custom length and width
  • Custom thickness
  • Customized transmission level
  • Customized attenuation level
  • Special coating requirements
  • Customized spectral range
  • Custom substrate
  • Bulk production
  • Private labeling
  • OEM / ODM manufacturing


Why Choose Our Reflective ND Filters?

Accurate Attenuation

Designed for controlled and repeatable optical attenuation.

Broadband Performance

The 400–1100nm range provides broad visible-to-NIR coverage.

Reflective Design

The reflective attenuation structure can help reduce heat absorption compared with 

absorptive attenuation solutions in appropriate applications.

Precision Coating

Multilayer thin-film coating technology supports stable and consistent optical performance.

Flexible Customization

Custom sizes, thicknesses, transmission levels and coating 

specifications can be manufactured according to project requirements.

Factory Direct Supply

We provide factory-direct optical filter manufacturing, technical support and OEM services for international customers.

How to Request a Custom ND Filter

For a customized optical attenuation filter, please provide:


  1. Required wavelength range
  2. Target transmission
  3. Filter dimensions
  4. Thickness
  5. Substrate requirements
  6. Optical power level
  7. Application
  8. Required quantity


Our engineering team can review your requirements and recommend a suitable reflective ND filter configuration.

Technical Note

The stated standard transmission is6%across the specified 400–1100nm operating range. 

Actual spectral transmission uniformity, reflection, 

attenuation tolerance and spectral curve should 

be confirmed against the final coating specification and production requirements.

FAQ – 400–1100nm Reflective Neutral Density Filter

Q1. What is the transmission of this ND filter?

The standard transmission is6%.

Q2. What wavelength range does the filter cover?

The specified spectral range is400–1100nm, covering visible and near-infrared wavelengths.

Q3. Is this an absorptive or reflective ND filter?

It is areflective neutral density filterusing a multilayer reflective coating.

Q4. What is the substrate material?

The filter uses apremium optical-grade glass substrate.

Q5. Can the transmission be customized?

Yes. Different transmission levels can be discussed according to the optical system requirements.

Q6. Can the filter dimensions be customized?

Yes. Diameter, length, width and thickness can be customized.

Q7. What applications can use this filter?

Typical applications include laser power attenuation, optical measurement, 

calibration, imaging, machine vision, laboratory instruments and industrial optical equipment.

Q8. Why use a reflective ND filter?

Reflective attenuation can reduce the amount of optical energy absorbed by the filter 

compared with absorptive attenuation solutions, which can be beneficial in suitable high-power optical applications.

Q9. Can you provide OEM production?

Yes. We support OEM/ODM manufacturing, custom coating, custom dimensions, bulk production and private labeling.

Q10. Can you customize the wavelength range?

Yes. Customized spectral ranges and coating designs can be developed according to project requirements.