The 12.7mm Neutral Density Filteris designed for applications
that require precise control of optical intensity without significantly
changing the spectral characteristics of the transmitted light.
With a standard diameter of12.7mm, this ND filter can be integrated
into a wide range of optical mounts, laboratory instruments and optical assemblies.
Multiple transmission levels are available from0.01% to 94%,
allowing users to select the appropriate attenuation level according to the optical system requirements.
The available transmission options include:
0.01% / 0.1% / 1% / 5% / 10% / 25% / 50% / 75% / 94%
The filter can also be supplied withOD2–OD4+ optical density options,
depending on the required attenuation level.
Multiple transmission options are available from0.01% to 94%,
supporting different optical attenuation requirements.
The filter is designed to reduce light intensity
while maintaining the spectral profile of the transmitted light.
The12.7mm diameteris suitable for many standard optical mounts,
laboratory setups and optical testing systems.
Available transmission levels include:
Different optical density levels can be selected according to the required attenuation performance.
High-quality optical glass provides a stable substrate for precision optical filtering and coating.
The optical coating is designed to achieve low reflectance
according to the specified optical requirements.
Precision optical processing helps minimize unwanted
scattering and maintain clean optical performance.
Custom transmission values can be evaluated for applications requiring a specific attenuation level.
| Parameter | Specification |
|---|---|
| Product Name | 12.7mm Neutral Density Filter |
| Product Type | Neutral Density (ND) Attenuation Filter |
| Standard Diameter | 12.7mm |
| Transmission Range | 0.01%–94% |
| Available Transmission | 0.01%, 0.1%, 1%, 5%, 10%, 25%, 50%, 75%, 94% |
| Optical Density | OD2–OD4+ Optional |
| Substrate | Optical Glass |
| Optical Function | Neutral Light Attenuation |
| Spectral Function | Neutral Attenuation |
| Reflectance | Low Reflectance |
| Scattering | Low Scattering |
| Surface Quality | Optional, such as 60/40 or 40/20 |
| Thickness | Customizable |
| Diameter | 12.7mm Standard |
| Other Diameters | Available |
| Transmission Customization | Available |
| Coating Specification | Customizable |
| Applications | Laser Systems, Imaging, Optical Testing, Laboratory Applications |
The filter is available in multiple transmission
levels for different light attenuation requirements.
| Transmission | Typical SEO Search Term |
|---|---|
| 0.01% | 12.7mm 0.01% ND Filter |
| 0.1% | 12.7mm 0.1% ND Filter |
| 1% | 12.7mm 1% ND Filter |
| 5% | 12.7mm 5% ND Filter |
| 10% | 12.7mm 10% ND Filter |
| 25% | 12.7mm 25% ND Filter |
| 50% | 12.7mm 50% ND Filter |
| 75% | 12.7mm 75% ND Filter |
| 94% | 12.7mm 94% ND Filter |
This broad selection makes the product suitable for
optical systems requiring different levels of light attenuation.
Optional optical density specifications include:
OD2 – OD4+
Optical density is related to transmission according to:
OD = -log₁₀(T)
whereTis the decimal transmission.
For example, an optical density of approximately OD2 corresponds to 1% transmission.
Actual filter performance should be selected according to
the specified transmission and spectral requirements of the optical system.
The ND filter allows controlled reduction of optical intensity without requiring changes to the optical source.
The filter is designed for neutral attenuation, helping preserve
the spectral characteristics and color balance of transmitted light.
The wide selection from0.01% to 94%allows users to choose an
attenuation level appropriate for different optical setups.
Low reflectance and low scattering help reduce unwanted optical effects within the system.
The combination of optical glass and advanced coating technology
supports stable performance during optical system operation.
Used for controlling laser intensity during optical testing, beam measurement and system development.
Suitable for optical laboratories requiring controlled
light attenuation during measurement and calibration.
Can be used to reduce excessive illumination while maintaining a neutral optical response.
Suitable for optical experiments, research equipment and laboratory optical assemblies.
Can be used to control the amount of light reaching photodetectors during optical evaluation.
Suitable for systems requiring repeatable light attenuation during optical measurements.
ND filters can be used to control incoming light intensity in imaging test setups.
Suitable for integrating into customized optical instruments and measurement equipment.
We provide customized neutral density optical filters according to customer requirements.
In addition to the standard transmission options,
custom attenuation levels can be evaluated according to project requirements.
Although12.7mmis the standard diameter, other diameters
and dimensions can be manufactured upon request.
Available surface-quality specifications can include:
60/40
40/20
Final surface-quality requirements should be confirmed before production.
For an accurate quotation, please provide:
Transmission + Optical Density + Diameter +
Thickness + Surface Quality + Quantity + Application
For example:
Transmission: 1% + Diameter: 12.7mm + Thickness: Custom + Surface Quality: 40/20 + Quantity: 100 pcs
Customers can also provide an optical drawing or
application requirements for engineering evaluation.
A typical manufacturing workflow includes:
Optical Glass Selection → Cutting → Grinding → Polishing →
Cleaning → Optical Coating → Spectral Testing → Surface Inspection →
Dimensional Inspection → Final QC → Protective Packaging
Production parameters can be adjusted according to the
required transmission, dimensions and surface quality.
Quality inspection may include:
Inspection requirements can be defined according to the customer's project specifications.
Each ND filter is individually protected to reduce the risk of:
Packaging options are available for:
Custom labeling and OEM packaging are also available.
The standard diameter is12.7mm.
Available transmission options include:
0.01%, 0.1%, 1%, 5%, 10%, 25%, 50%, 75% and 94%.
Optional optical density isOD2–OD4+.
A neutral density filter is an optical filter designed to reduce
light intensity while maintaining a relatively neutral spectral response.
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