Product Descriptions:
| Characteristics: | 905nm Narrow Bandpass filters |
| Central Wavelength (CWL): | 905nm |
| Transmittance: | >90% or specified |
| Dimension: | Customized. |
| Thickness: | 0.55mm/0.7mm/1.0mm/2.0mm/3.0mm |
| Substrate: | Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica) or other specified. |
| Spectral range: | 380-1100nm |
| Remark： *Customized capability: 380-2500nm, stock for 10nm intervals. **Common for 86x86mm, 80x80mm,other can customized,max. 300x300mm *** Option: 0.21、0.3、0.55、0.7、1.0、1.1、2.0、3.0mm…etc | |
Spectral curve
 |
| Picture 1: BP905nm Spectral Curve |
What is typical application for 905nm Narrow bandpass filters?
Typical application for 905nm bandpass filters is very broad, include LIDAR,Laser range finder, industrial sensing and machine vision etc.
What is key parameter when choose for right Narrow bandpass filters?
When selecting a Narrow bandpass filters:
- Center WaveLength (CWL) will be one of key parameter to be designated, with a tolerance of generally +/-2nm or +/5nm which depend on the user inquiry.
- Bandwidth (FWHM) normally range from 5-15nm, need to balances signal transmission with ambient light rejection. The FWHM of ultra narrow bandpass might be lower than 5nm.
- Peak and Average Transmittance ,e.g 90%,95%…etc. higher transmittance might need Anti-reflective(AR) coating.
- Subtrate: material will determin durability, thermal stability, and cost.
Typical Narrow bandpass filter from Liyuan Optoelectronics:
- NBP850nm /905nm /950nm /940nm /1550nm FWHM 10nm/30nm/50nm
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.
