High-Quality LP Longpass Filter by China Suppliers - Enhance Imaging Accuracy | Factory Direct Supply
| Product Name | Cut-off range (nm) | Cut-off depth | Transmission range (nm) | Transmission band transmittance | Spectrogram |
|---|---|---|---|---|---|
| LPF800 | 400-770 | >0D4 | 825-1200 | >85% average |
|
| LPF825 | 400-795 | >0D4 | 850-1200 | >85% average |
|
| LPF850 | 400-820 | >0D4 | 875-1200 | >85% average |
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| LPF875 | 400-845 | >0D4 | 900-1200 | >85% average |
|
| LPF900 | 400-870 | >0D4 | 930-1200 | >85% average |
|
| LPF925 | 400-895 | >0D4 | 955-1200 | >85% average |
|
| LPF950 | 400-910 | >0D4 | 980-1200 | >85% average |
|
| LPF975 | 400-935 | >0D4 | 1010-1800 | >85% average |
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| LPF1000 | 400-960 | >0D4 | 1040-1800 | >85% average |
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| LPF1025 | 400-985 | >0D4 | 1070-1800 | >85% average |
|
| LPF1050 | 400-1010 | >0D4 | 1100-1800 | >85% average |
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| LPF1075 | 400-1035 | >0D4 | 1130-1800 | >85% average |
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| LPF1100 | 400-1060 | >0D4 | 1160-1800 | >85% average |
|
| LPF400 | 200-375 | >0D4 | 420-1200 | >85% average |
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| LPF425 | 200-405 | >0D4 | 445-1200 | >85% average |
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| LPF450 | 200-430 | >0D4 | 470-1200 | >85% average |
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| LPF475 | 200-455 | >0D4 | 495-1200 | >85% average |
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| LPF500 | 200-480 | >0D4 | 520-1200 | >85% average |
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| LPF525 | 200-505 | >0D4 | 545-1200 | >85% average |
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| LPF550 | 200-530 | >0D4 | 575-1200 | >85% average |
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| LPF575 | 200-550 | >0D4 | 600-1200 | >85% average |
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| LPF600 | 200-570 | >0D4 | 625-1200 | >85% average |
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| LPF625 | 200-595 | >0D4 | 650-1200 | >85% average |
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| LPF650 | 200-620 | >0D4 | 675-1200 | >85% average |
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| LPF675 | 200-645 | >0D4 | 700-1200 | >85% average |
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| LPF700 | 200-670 | >0D4 | 725-1200 | >85% average |
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| LPF725 | 200-695 | >0D4 | 750-1200 | >85% average |
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| LPF750 | 200-720 | >0D4 | 775-1200 | >85% average |
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| LPF775 | 200-745 | >0D4 | 800-1200 | >85% average |
|
The above list shows our current stock items.
If you don't see what you are looking for, please contact us.
Q What is a Longpass Filter (LPF)?
A longpass filter (LPF) is an optical filter that selectively transmits longer wavelengths while blocking shorter wavelengths. It is commonly used in fluorescence microscopy, spectroscopy, and various industrial imaging applications.
Q What does the "Cut-off depth >OD4" specify?
">OD4" refers to Optical Density 4. This indicates that the filter blocks unwanted wavelengths in the cut-off range with high efficiency, allowing less than 0.01% of the out-of-band light to pass through.
Q What is the average transmission rate for these filters?
Our standard stock LPF filters offer an average transmission band transmittance of greater than 85% (>85% average), ensuring maximum signal throughput in the designated passband.
Q Can I request a custom cut-off wavelength or size?
Yes, we can customize optical filters to meet your specific dimensions, substrates, and optical performance requirements. Please contact us directly if your desired specification is not listed in our stock.
Q How can I view the spectrogram for a specific filter?
You can click on the thumbnail image in the "Spectrogram" column of the product table to view the detailed transmission curve and performance analysis chart for that filter model.