| Characteristics: | 635nm Bandpass Filter |
| Type: | Bandpass filter |
| Cut-off Wavelength(in mm): | 635+-5nm or specified* |
| Full Width at Half Maximum（FWHM): | 20nm |
| Peak Transmittance(%) : | >90% |
| Optical Density (OD): | OD2-6 |
| Angle of Incidence | 0°± 5° |
| Surface Quality | 60/40 |
| Dimension(mm): | Specified** |
| Thickness(mm): | 0.21-3mm |
| Substrate: | Ultra-clear glass
|
| Remark： Spectral range:200-1100nm *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 | |
Measured Spectral Graph – 635nm Bandpass filter:
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| Picture 1: BP635nm Spectral Graph measurement |
What is 635nm bandpass filter?
A 635nm Bandpass Filter is an optical interference filter engineered to transmit a specific narrow wavelength range centered at 635 nm while blocking light at all other wavelengths. These filters are critical components in optical systems for isolating specific spectral lines, reducing background noise, and enhancing signal-to-noise ratios.
What is typical application for 635nm bandpass filters?
Typical application for 635nm bandpass filters are very broad, include Fluorescence Microscopy and Biotechnology, Machine Vision and Industrial Inspection, Spectroscopy and Metrology, Scientific Research…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, tighter tolerances (±2 nm) for precision applications. Secondly, bandwidth (FWHM), narrower bandwidth (10 nm) for higher selectivity. Third, transmission efficiency, higher transmission (>90%) maximizes signal strength. Forth, blocking depth, OD2-OD6 ensures complete rejection of out-of-band light. Fifth, angle of incidence, maintain specified AOI (typically 0°) for accurate spectral performance…etc.
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.
