Product Descriptions:
| Characteristics: | 850nm Dual Bandpass Filter |
| Central Wavelength (CWL): | 850+-5nm or specified* |
| Transmittance: | >90% or specified |
| Full Width at Half Maximum(FWHM): | Specified |
| Dimension: | Customized, Common for 86x86mm, 80x80mm,other can customized, max. 300x300mm |
| Thickness: | Customized – 0.21、0.3、0.55、0.7、1.0、1.1、2.0、3.0mm…etc |
| Substrate: | Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified. |
| Remark：Spectral range:380-1100nm *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 | |
What is typical application for 850nm Dual bandpass filters?
The 850nm dual bandpass filter is a optical component engineered to precisely and simultaneously transmit two distinct wavelength bands, with one centered at 850nm and a second at a user-specified wavelength. This specialized functionality is critical for systems that require concurrent multi-spectral data acquisition without the complexity of multiple filters or beam splitters. Its design is pivotal for enabling real-time multispectral and hyperspectral imaging in precision agriculture, remote sensing, and industrial sorting, where specific band ratios provide immediate material or chemical identification.
What is key parameter when choose for right bandpass filter?
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,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.
Other typical Bandpass filters in stock from Liyuan Optoelectronics include BP810 BP820 BP830 BP840 BP850 BP860 BP870 BP880 BP890 BP…etc.
