390nm Narrow Bandpass Optical Filter K9 Glass Coated Lens
The390nm Narrow Bandpass Optical Filteris designed for optical
systems requiring precise transmission around the390nm UV-violet wavelength.
Manufactured fromK9 optical glass, the filter features a
precisionoptical thin-film coatingthat provides controlled narrow bandpass spectral filtering.
The optical coating is designed to selectively transmit the target
wavelength while reducing unwanted spectral components outside the desired optical region.
With aprecision polished optical surface, the filter is suitable
for integration into optical instruments, UV detection systems,
sensing equipment, imaging assemblies and other precision optical applications.
The filter can be customized in terms ofsize, thickness,
shape and wavelengthaccording to customer requirements.
The filter is designed around a390nm center wavelength,
providing selective transmission for UV-violet optical applications.
K9 optical glass provides a clear optical substrate suitable for precision coated optical components.
Advanced thin-film coating technology is used to achieve controlled wavelength-selective optical performance.
The narrow bandpass structure allows the optical
system to select the required wavelength while reducing unwanted spectral components.
The optical surface is precision polished to support high-quality optical transmission and imaging performance.
The product is manufactured as a coated optical lens suitable for integration into customized optical systems.
Round, square and customized shapes are available, together with custom thickness and dimensions.
| Parameter | Specification |
|---|---|
| Product Name | 390nm Narrow Bandpass Optical Filter |
| Product Type | Narrow Bandpass Optical Filter |
| Filter Type | Narrow Bandpass |
| Center Wavelength | 390nm |
| Spectral Region | UV / Violet |
| Transmission Characteristic | Narrow Bandpass |
| Substrate | K9 Optical Glass |
| Coating | Optical Thin-Film Coating |
| Optical Element | Coated Optical Lens |
| Surface Quality | Precision Polished |
| Optical Function | Selective Wavelength Transmission |
| Transmission | High transmission at target wavelength |
| Size | Custom Available |
| Thickness | Custom Available |
| Shape | Round / Square / Customized |
| Wavelength | 390nm |
| Other Wavelengths | Custom Available |
| OEM / ODM | Supported |
| Applications | UV Detection, UV Sensing, Imaging, Optical Instruments |
A narrow bandpass optical filter is designed to transmit a
selected wavelength region while suppressing unwanted wavelengths outside the target band.
For this product:
Target Wavelength: 390nm
Filter Type: Narrow Bandpass
Substrate: K9 Optical Glass
Coating: Optical Thin-Film Coating
The multilayer thin-film coating creates wavelength-selective
optical transmission through controlled interference effects.
This allows the filter to select the required 390nm optical signal
for systems where spectral accuracy is important.
The filter is designed around390nm, making it suitable for
optical systems requiring selective UV-violet wavelength transmission.
The narrow bandpass design helps reduce unwanted wavelengths and improve spectral selectivity.
The K9 optical glass substrate provides a clear and precision-polishable base for the optical coating.
The optical thin-film coating provides controlled spectral transmission and stable wavelength performance.
The polished optical surface supports high-quality optical transmission and integration into precision optical assemblies.
Different applications can require different mechanical and spectral specifications.
Custom configurations are available according to project requirements.
Suitable for optical detection systems requiring selective transmission around 390nm.
Can be integrated into UV sensing systems requiring wavelength-specific optical filtering.
Suitable for analytical and optical instruments requiring narrowband UV-violet wavelength selection.
Can be used in customized imaging systems where unwanted spectral components need to be reduced.
Suitable for optical measurement systems requiring controlled wavelength transmission.
Can be integrated into research and laboratory optical equipment requiring 390nm spectral selection.
Suitable for customized spectroscopy and spectral analysis systems where narrowband wavelength filtering is required.
Can be used in OEM optical assemblies requiring a compact coated optical filter with a defined target wavelength.
We support customized narrow bandpass optical filters for different optical system requirements.
The standard configuration is390nm, while other wavelength
configurations can be manufactured according to customer requirements.
Available configurations include:
Round + Square + Rectangular + Customized Shape
Dimensions and thickness can be produced according to technical drawings or optical assembly requirements.
For an accurate quotation, please provide:
Center Wavelength + Bandwidth + Transmission Requirement +
Blocking Requirement + Size + Thickness + Shape + Quantity + Application
Example:
Center Wavelength: 390nm + Size: Ø25.4mm + Thickness: Custom + Shape: Round + Quantity: 100 pcs
Customers can also provide a technical drawing, spectral curve,
existing sample or application information for engineering evaluation.
A typical manufacturing workflow includes:
K9 Optical Glass Selection → Cutting → Grinding →
Precision Polishing → Cleaning → Optical Thin-Film Coating →
Spectral Testing → Surface Inspection → Dimensional Inspection → Final QC → Protective Packaging
Coating specifications and production parameters can be customized according to customer requirements.
Quality inspection can include:
Final inspection criteria can be established according to customer specifications.
Each optical filter can be individually protected against:
Packaging options are available for:
Custom labels and OEM packaging are also available.
The target wavelength is390nm.
Yes. It is designed as a390nm narrow bandpass optical filterfor selective wavelength transmission.
The substrate isK9 optical glass.
The filter uses a precisionoptical thin-film coating.
390nm is at the boundary of the ultraviolet and violet spectral regions.
For product positioning, it can be described as aUV-violet optical filter.
Yes. It can be used in customized UV detection and sensing
systems requiring selective transmission around 390nm.
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