Product Descriptions:
| Characteristics: | Quatz glasses fused silica Dual Bandpass Filters |
| 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 4 or specified |
| Shape: | Round, Square, Custom Shape |
| Angle of Incidence(AOI) | 0°, 45°or specified |
| Surface Quality: | 60/40 scratch-dig or specified |
| 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. | |
What is Quatz glasses fused silica Dual Bandpass Filters?
A Quartz Glass (Fused Silica) Dual Bandpass Filter is a high-performance optical component that transmits two distinct wavelength bands while blocking all other wavelengths, using fused silica (quartz glass) as the substrate.
What is typical application for Quatz glasses fused silica Dual Bandpass Filters?
Widely used applications of fused silica dual bandpass filters include autonomous driving LiDAR and vehicle imaging systems, as well as biometric recognition devices such as facial recognition and iris scanners. Additionally, dual-channel spectral analysis, various scientific instruments, industrial machine vision, and night vision equipment also employ these filters.
What are the advantages of using fused silica 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.
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, with a tolerance of generally +/-5nm or +/7nm which depend on the user inquiry. Secondly, Full Width at Half Maximum(FWHM) means the transmittance range, for those FWHM is short, normally called narrow bandpass filters (NBP) which no united definition and typically for lower than 10nm. then, Peak and Average Transmittance, e.g 90%,95%…etc. higher transmittance might need Anti-reflective(AR) coating.
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.
