Product Descriptions:
| Characteristics: | 540nm Bandpass Filter |
| Type: | Bandpass Filter |
| Central Wavelength (CWL): | 540+-5nm or specified* |
| Full Width at Half Maximum(FWHM): | 45nm or specified |
| Peak Transmittance(%) : | >90% or specified |
| Cut-off depth: | OD2-OD3 |
| Shape: | Round |
| Color: | Green |
| Surface Quality: | 60/40 scratch-dig |
| Dimension(mm): | Diameter 27mm or specified** |
| Thickness(mm): | 1.0mm or specified*** |
| Substrate: | Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified. |
| Remark: Spectral range:200-1100nm *Customized capability: 380-2500nm, stock for 10nm intervals. **Common for 86x86mm, 80x80mm, other can customized, max. 300x300mm *** Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm, etc. | |
Measured Spectral Graph – 540nm Bandpass filter:
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| Picture 1: BP540nm Spectral Graph measurement |
What is 540nm bandpass filter?
A 540nm bandpass filter is an optical filter that selectively transmits light within a specific wavelength range centered around 540 nm , while blocking light outside this range. It belongs to the visible spectrum, where 540nm corresponds to green light.
What is typical application for 540nm bandpass filters?
540nm bandpass filters are mainly used in optical detection, biological analysis, and precision measurement. They are essential for fluorescence microscopy and flow cytometry, enabling clear cellular imaging. They also support environmental monitoring, gas analysis, machine vision, color sorting, and optical sensors by reducing ambient light interference and improving signal-to-noise ratio, while ensuring stable green light output in laser and spectral analysis applications by blocking unwanted wavelengths.
What is key parameter when choose for right 540nm bandpass filter?
When selecting a bandpass filters, the center wavelength (CWL) will be one of key parameter to be designated, it refer to the wavelength at which the filter achieves maximum transmission. Secondly, Peak and Average Transmittance, typically ≥80–95%, higher transmittance might need Anti-reflective(AR) coating. Third, full width at half maximum (FWHM). Forth, Blocking Range & Depth. Fifth, substrate material, e.g., BK7, B270, fused silica, colored glass. Sixth, surface quality, e.g., 60/40, 40/20. Seventh, Size & Shape, etc.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nanomaterials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift.
Other typical Bandpass filters in stock from Liyuan Optoelectronics include BP810 BP820 BP830 BP840 BP850 BP860 BP870 BP880 BP890 BP…etc.
NBP540-10nm Narrow Bandpass Filter, 540nm CWL, 10nm FWHM Optical Filter
