The 913nm Black Glass Narrow Bandpass Reflective Optical
Filter Lens is designed for optical systems requiring selective
transmission around the 913nm near-infrared wavelength.
The filter uses ablack optical glass substrate combined with a
precision multilayer optical coatingto provide narrowband
spectral filtering and controlled optical transmission.
With atypical peak transmittance of ≥85%, the filter is designed to
efficiently transmit the target wavelength
while suppressing unwanted spectral components outside the desired optical region.
The black glass substrate and multilayer coating structure
make this filter suitable for NIR sensing, imaging, detection,
optical instruments and customized optical assemblies.
Custom wavelengths, dimensions, shapes and thicknesses can be produced according to application requirements.
The filter is designed around the913nm wavelength, providing selective transmission for NIR optical systems.
The specified typical peak transmittance is≥85%,
supporting efficient transmission of the target optical signal.
The filter usesblack optical glassas the substrate, suitable for applications requiring a dark optical filter substrate.
A precision multilayer coating is applied to provide controlled wavelength-selective optical performance.
The filter is designed as areflective narrow bandpass optical filter, allowing selective spectral filtering around the target wavelength.
The product is supplied as a coated optical lens and can be customized for integration into different optical assemblies.
The 913nm wavelength is within the near-infrared region,
making this filter suitable for NIR optical detection and sensing systems.
Custom wavelength, size, thickness and shape options are available for OEM and application-specific projects.
| Parameter | Specification |
|---|---|
| Product Name | 913nm Black Glass Narrow Bandpass Reflective Optical Filter |
| Product Type | Black Glass Narrow Bandpass Reflective Filter |
| Filter Type | Reflective Narrow Bandpass Filter |
| Center Wavelength | 913nm |
| Peak Transmittance | ≥85% Typical |
| Substrate Material | Black Optical Glass |
| Coating | Multilayer Optical Coating |
| Lens Type | Coated Optical Lens |
| Spectral Region | Near Infrared |
| Optical Function | Narrow Bandpass Filtering |
| Transmission | High transmission at target wavelength |
| Surface | Precision Optical Surface |
| Size | Custom Available |
| Shape | Custom Available |
| Thickness | Custom Available |
| Wavelength | 913nm |
| Other Wavelengths | Custom Available |
| OEM / ODM | Supported |
| Applications | NIR Sensing, Imaging, Detection, Optical Instruments |
A narrow bandpass optical filter selectively transmits a specific
wavelength region while reducing unwanted wavelengths outside the designed transmission band.
For this product, the target wavelength is:
Center Wavelength: 913nm
The filter combines ablack optical glass substratewith amultilayer optical coatingto achieve wavelength-selective filtering.
The multilayer coating is engineered to control optical transmission and reflection at different wavelengths.
This allows the filter to be integrated into optical systems
where the 913nm signal needs to be separated from unwanted background light.
The filter is designed for optical systems operating around the913nm wavelength.
The specified typical peak transmittance is≥85%,
helping maintain efficient transmission of the desired optical signal.
The multilayer coating provides controlled spectral filtering and supports consistent optical performance.
The black optical glass substrate provides a suitable base for the narrow bandpass optical coating.
The narrowband design allows optical systems to selectively
detect or transmit the target NIR wavelength while reducing unwanted spectral components.
Different applications may require different wavelength bands
and transmission characteristics. Custom optical filter designs are available according to project requirements.
Suitable for near-infrared sensing systems requiring selective transmission around 913nm.
Can be integrated into optical detection systems that use 913nm light sources or detectors.
Suitable for customized imaging systems requiring wavelength-selective NIR filtering.
Can be used in machine vision systems with NIR illumination and detection.
Suitable for optical instruments requiring narrowband spectral selection.
Can be integrated into infrared detection systems requiring controlled wavelength transmission.
Suitable for customized optical sensors and measurement equipment.
Can be used in research and laboratory optical systems requiring NIR wavelength filtering.
We provide customized narrow bandpass optical filters for different optical system requirements.
Although this product is designed around913nm,
other wavelength configurations can be manufactured according to customer requirements.
Custom:
Diameter + Length + Width + Thickness + Shape
can be produced according to technical drawings or optical assembly requirements.
For an accurate quotation, please provide:
Target Wavelength + Bandwidth + Transmission Requirement +
Blocking Requirement + Size + Thickness + Quantity + Application
Example:
Target Wavelength: 913nm + Peak Transmission: ≥85% +
Size: Custom + Thickness: Custom + Quantity: 100 pcs
Customers can also provide a technical drawing, spectral curve,
existing sample or application information for engineering evaluation.
A typical production workflow includes:
Black Optical Glass Selection → Cutting → Grinding →
Precision Polishing → Cleaning → Multilayer Optical Coating →
Spectral Testing → Surface Inspection → Dimensional Inspection → Final QC → Protective Packaging
The coating structure and production parameters can be customized according to customer specifications.
Quality inspection can include:
Final inspection requirements can be established according to the customer's technical specifications.
Each optical filter can be individually protected against:
Packaging is available for:
Custom labels and OEM packaging are also available.
The target wavelength is913nm.
It is ablack glass narrow bandpass reflective optical filter.
The typical peak transmittance is≥85%.
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