1.Product Descriptions :
| Characteristics: | IR Bandpass Filter |
| Central Wavelength (CWL): | 670nm or customized |
| Peak Transmittance: | >90% |
| Full Width at Half Maximum(FWHM): | customized |
| Cut-off depth: | OD2-OD6 |
| Dimension: | Round 17.8mm or customized |
| Thickness: | 1.0mm or customized |
| Remark: | Can do customization per requirement |
2. Measured Spectral curve
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Picture 1: IR670nm Spectral Curve |
3.What is typical application for 670nm IR bandpass filter?
4.What is key parameter when choose for right Narrow bandpass filters:
When selecting a Narrow 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, Full Width at Half Maximum(FWHM) means the transmittance range, for those FWHM is short, normally called narrow bandpass filters which no united definition and typically for lower than 10nm. then, Peak and Average Transmittance, e.g 90%,95%…etc. higher transmittance might need Anti-reflective(AR) coating.
other Bandpass filters in stock from Liyuan Optoelectronics: LP430 LP500 LP560 LP600 LP650 LP800…etc.
