Product Descriptions:
| Characteristics: | 490nm Bandpass Filter |
| Central Wavelength (CWL): | 490+-5nm or specified* |
| Full Width at Half Maximum（FWHM): | 40nm or specified |
| Peak Transmittance(%) : | >90% or specified |
| Dimension(mm): | Diameter 12mm 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: 200-2500nm, 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 – 490nm Bandpass filter:
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| Picture 1: BP490nm Spectral Graph measurement |
What is typical application for 490nm bandpass filters?
Typical application for 490nm bandpass filters is very broad, include fluorescence microscopy and bioimaging, water quality and environmental sensing, colorimetry and machine vision, astronomy, laser and optical system cleanup…etc.
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.
