1.Product Descriptions:
| Characteristics: | Quartz Glass Dual Bandpass Filter |
| Type: | Bandpass Filter |
| Central Wavelength (CWL): | 380-2500nm, stock for 10nm intervals. |
| Peak Transmittance(%) : | >90% or specified |
| Full Width at Half Maximum(FWHM): | 10nm – 40nm or specified |
| Optical Density (OD): | OD 2 – OD 3 |
| Shape: | Round, Square, Custom Shape |
| Angle of Incidence(AOI) | 0°, 45°or specified |
| Surface Quality: | 60/40 scratch-dig |
| Dimension(mm): | Specified** |
| Thickness(mm): | specified |
| Substrate: | Quartz Glass |
| Remark： (1)Spectral range:380-2500nm (2) Size customized: 86x86mm, 80x80mm, other can customized, max. 300x300mm (3) Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm…etc. | |
2.What is Quartz glass Dual Bandpass Filter?
A Quartz Glass Dual Bandpass Filter is an optical component that allows two specific, separate wavelength bands of light to pass through simultaneously while blocking all other wavelengths. It is manufactured using quartz glass or fused silica as the substrate material.
3.What is typical application for Quartz Glass Dual Bandpass Filters?
Quartz glass dual bandpass filters serve critical roles in fluorescence microscopy, flow cytometry, and biomedical imaging, where they simultaneously transmit two specific wavelength bands for multi-channel detection. They also perform well in Raman spectroscopy, laser systems, and astronomical observations, where they isolate multiple spectral lines with high precision and thermal stability.
4.What are the advantages of using quartz glass as the substrate material for bandpass filters?
The key advantages of using quartz glass as the substrate material for bandpass filters are its broad and stable spectral transmission range, as well as its excellent physical and chemical stability. Specific properties include a low coefficient of thermal expansion, strong thermal shock resistance, corrosion resistance, high hardness (Mohs grade 7), and good scratch resistance.
5.What is key parameter when choose for right bandpass filters?
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. Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.
More Bandpass filters in stock from Shenzhen Hengda Liyuan Optoelectronics: BP430 BP480 BP500 BP550 BP560 BP600 BP650 BP800…etc.
