12.7mm 400–1100nm Reflective Neutral Density Filter
The12.7mm 400–1100nm Reflective Neutral Density Filter
is a broadband optical attenuation filter designed for precise
light intensity control across a wide wavelength range.
It covers400–1100nm, extending from the visible spectrum
nto the near-infrared region. Multiple transmission levels from
0.01% to 90%can be selected according to optical system requirements.
The reflective ND coating is designed to attenuate optical intensity
primarily through reflection rather than relying only on absorption,
helping reduce thermal load in demanding optical applications.
The filter provides broadband attenuation across the400–1100nmwavelength range.
This broad operating range makes it suitable for optical systems
that work across both visible and near-infrared wavelengths.
Typical applications include:
Different optical systems require different levels of attenuation.
This product supports multiple selectable transmission levels:
0.01% / 0.1% / 1% / 10% / 25% / 50% / 90%
The exact available transmission level should be confirmed according to the required coating design.
This provides flexibility for:
The filter uses areflective neutral density coatingto reduce
optical intensity across a broad spectral range.
Compared with strongly absorbing attenuation designs,
the reflective structure can help reduce absorbed optical energy and associated thermal loading.
This makes the filter suitable for applications where optical stability and heat management are important.
The filter is manufactured using anoptical-grade glass substratewith precision optical surface quality.
The substrate provides:
| Item | Specification |
|---|---|
| Product Name | 12.7mm 400–1100nm Reflective Neutral Density Filter |
| Product Type | Neutral Density Reflective Attenuator |
| Filter Type | Reflective ND Filter |
| Wavelength Range | 400–1100nm |
| Transmission | 0.01%–90% Selectable |
| Optical Function | Broadband Attenuation |
| Spectral Region | Visible + Near Infrared |
| Diameter | Ø12.7mm |
| Substrate | Optical-Grade Glass |
| Coating | Reflective Neutral Density Coating |
| Transmission Uniformity | High Uniformity |
| Surface Quality | Precision Optical Grade |
| Thickness | Standard / Custom |
| Size Tolerance | High Precision |
| Shape | Round |
| Thermal Performance | Reduced Thermal Load Through Reflective Design |
| Applications | Laser, Measurement, Imaging, Spectroscopy |
| Customization | Transmission / Thickness / Coating / Specifications |
| Production | OEM / ODM / Bulk |
Note:Actual spectral transmission uniformity, attenuation curve,
reflection, surface specifications and coating performance should
be confirmed according to the selected transmission level,
wavelength, angle of incidence and application conditions.
The filter is designed to provide controlled optical attenuation over a broad400–1100nmspectral range.
The neutral-density coating is designed for consistent attenuation
across the operating wavelength range, minimizing wavelength-dependent variation.
The reflective structure helps redirect unwanted optical energy
rather than relying entirely on absorption.
This can help reduce thermal loading within the filter.
The optical glass substrate and durable coating structure
support stable performance under standard optical operating environments.
The filter can be used to reduce laser intensity to a suitable
level for downstream optical components, detectors or measurement systems.
Applications include:
Neutral density filters are commonly used to control optical intensity during measurement and calibration.
Possible applications include:
The filter can be integrated into optical imaging systems
where controlled light attenuation is required.
Applications include:
The broad 400–1100nm range makes the filter suitable for selected
visible and near-infrared spectroscopy applications requiring controlled optical intensity.
The filter can be integrated into optical instruments where
broadband attenuation and stable optical performance are required.
TheØ12.7mm / 1/2-inchformat is convenient for many standard optical mounts and laboratory optical systems.
Custom dimensions can also be considered for OEM applications requiring specific mounting or integration requirements.
We support customized optical attenuation solutions according to customer requirements.
Customers can provide optical drawings or application requirements for evaluation.
We support:
OEM optical filter manufacturing
Custom ND filter production
Reflective attenuator manufacturing
Optical glass processing
Sample production
Small-batch orders
Bulk production
For OEM projects, customers can provide:
Wavelength + Transmission + Diameter + Thickness + Quantity + Application
Our engineering team can evaluate the required optical coating and substrate specifications.
It is a broadband optical attenuation filter designed to reduce
light intensity across the 400–1100nm wavelength range without being primarily designed as a narrow bandpass filter.
Transmission can be selected from approximately0.01% to 90%, depending on the required coating specification.
The standard diameter is12.7mm, equivalent to approximately 1/2 inch.
This product uses areflective neutral density coating. The reflective design helps reduce the amount of optical energy absorbed by the filter and can therefore help manage thermal loading.
Yes. Different attenuation/transmission levels
can be manufactured according to the application requirements.
Yes. Custom wavelength ranges and coating specifications can be evaluated for OEM projects.
Yes. It can be used for laser power attenuation, beam intensity control,
optical testing and measurement applications, subject to the specific laser wavelength and power density.
Yes. Custom thicknesses, dimensions, shapes and optical specifications are available.
Yes. OEM, ODM, sample, small-batch and bulk production are supported.
Looking for a400–1100nm reflective ND filterfor laser attenuation, optical measurement or imaging?
Please send us:
Wavelength + Required Transmission + Diameter/Size + Thickness + Quantity + Application
We can evaluate the optical requirements and provide a customized
neutral density filter / reflective optical attenuatorsolution.
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