Product Descriptions:
| Characteristics: | 850nm Infrared Bandpass Filter |
| Central Wavelength (CWL): | 850nm |
| Transmittance: | >90% |
| Dimension: | Customized* |
| Thickness: | Customized** |
| Substrate: | HWB760/HWB780 Infrared Glass |
| Spectral range: | 380-1100nm |
| Remark： *Common for 86x86mm, 80x80mm, max. 300x300mm **Optional thickness: 0.21、0.3、0.55、0.7、1.0、1.1、2.0、3.0mm…etc | |
Spectral Measurement Graph for 850nm IR Bandpass Filter:
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| Picture 1: Spectral Measurement Graph for 850nm IR Bandpass Filter |
What is typical application for 850nm Infrared bandpass filter?
Typical application for 850nm bandpass filters is very broad, include medical beauty device, microscope, visual sensoring, chemical analysis,Machine vision, Photography,Laser systems and Infrared imaging …etc.
What is key parameter when choose for right Narrow bandpass filter?
When selecting a Narrow bandpass filters:
- 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.
- 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.
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 Fitlers, IR cut-off Filters, Longpass & Short Filters,Notch Filters, ND filters, Star filters and Optical sapphire block.
Shenzhen Hengda Liyuan Optoelectronics is focus on optical coating and optical filters solution, can provide but cut-off type glass and selective Absorption type glass.
- Cut-off Type Glass：Ultraviolet Glass, Golden(Yellow) Glass, Red Glass, Infrared Glass
- Selective Absorption Type Glass: Ultraviolet Glass, Violet Glass, Green Glass, Golden(Yellow)Glass, Red Glass, Infrared Glass, Protective Glass and Heat absorbing Glass.
