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High-Quality Long-Pass Filter Suppliers in China | MULTIIR Factory for Enhanced Imaging Solutions
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The above list shows our current stock items.
If you don't see what you are looking for, please contact us .
Frequently Asked Questions (FAQ)
Q:
What is the typical transmission rate of these LPF series longpass filters?
All LPF longpass filters listed in our stock feature a transmission band transmittance of average >85%, ensuring high light throughput in the designated transmission range.
Q:
What level of out-of-band blocking do these filters provide?
Our LPF series filters offer a deep cut-off depth of >OD4, effectively blocking unwanted shorter wavelengths below the transition threshold.
Q:
What wavelength ranges are covered by the LPF models?
The series covers cut-off ranges from 200nm up to 1060nm and transmission ranges extending from 420nm up to 1800nm, accommodating visible light to near-infrared (NIR) spectrums.
Q:
Are custom dimensions or custom wavelength ranges available?
Yes. The list highlights our standard stock items. If your application requires a custom cut-off wavelength or specific dimensions not shown in the table, please contact us directly for customized solutions.
Q:
How are the spectrograms provided for these filters?
Each product row features an interactive spectrogram link. You can click on the thumbnail image in the table to view the detailed transmission and cut-off curves for the respective filter.






