Description
410nm Bandpass Filter
The 410nm Bandpass Filter is a narrow band optical filter designed to transmit light around 410nm while effectively blocking unwanted wavelengths outside the passband. Positioned in the blue-violet region of the visible spectrum, this filter provides high transmission at the target wavelength with a narrow spectral bandwidth, making it suitable for optical systems that require selective wavelength transmission.
This 410nm optical filter uses B270 optical glass as the substrate and features a multilayer thin-film coating designed for high transmission at 410±3nm. The filter provides a transmission of T>80% within the specified passband, while maintaining FWHM<6nm. Outside the passband, transmission is suppressed to T<0.5% over the specified wavelength ranges, helping reduce unwanted background light and improve spectral selectivity.
The 410nm Bandpass Filter can be used in optical instruments and systems including fluorescence microscopy, spectroscopy, scientific imaging, environmental monitoring, water quality analysis, and phototherapy equipment. It can also be integrated with cameras, microscopes, spectrometers, light sources, and other optical components where precise wavelength selection is required.
Jiujon Optics can manufacture 410nm bandpass filters in different dimensions and configurations according to application requirements. Mounting options are available for integration into optical assemblies and instruments. Custom specifications, including dimensions, coating characteristics, and mounting configurations, can also be discussed according to the requirements of the optical system.
Key Features
- Central wavelength around 410nm
- High transmission of T>80% at 410±3nm
- Narrow spectral bandwidth with FWHM<6nm
- High blocking performance with T<0.5% at 200–380nm and 425–510nm
- B270 optical glass substrate
- Surface quality of 60/40
- Surface flatness of 3(1)@632.8nm
- Available in different dimensions
- Optional mounting for optical system integration
- Custom optical specifications available
Technical Specifications
| Parameter | Specification |
|---|---|
| Substrate | B270, H-K9L, Float Glass, etc |
| Dimensional Tolerance | -0.1 mm |
| Thickness Tolerance | ±0.05 mm |
| Surface Flatness | 3(1)@632.8nm |
| Surface Quality | 60/40 |
| Line Width | 0.1 mm & 0.05 mm |
| Edges | Ground, 0.3 mm max. Full width bevel |
| Clear Aperture | 90% |
| Parallelism | <45″ |
| Coating | T<0.5%@200–380nm; T>80%@410±3nm; FWHM<6nm; T<0.5%@425–510nm |
| Mount | Optional |
Applications
The 410nm Bandpass Filter can be incorporated into optical systems requiring selective transmission of blue-violet light. Typical applications include:
- Fluorescence microscopy
- Spectroscopy and spectral analysis
- Scientific imaging
- Environmental monitoring
- Water quality analysis
- Phototherapy equipment
- Optical measurement instruments
- Cameras and imaging systems
- Microscopes and spectrometers
Custom Optical Filter Solutions
Jiujon Optics provides customized optical filter solutions for different optical instruments and systems. In addition to the 410nm Bandpass Filter, we can support different substrate materials, dimensions, coating specifications, and mounting configurations according to project requirements.
For custom 410nm bandpass filters or other wavelength-specific optical filters, please contact Jiujon Optics with your required wavelength, bandwidth, dimensions, substrate, and transmission or blocking specifications.








