LP665-25.4 Infrared Longpass Filter
High-quality filter for infrared imaging and industrial applications.
665 nm · MidOpt · Mounted filter
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Part of this product family
LP470-25.4 Longpass Filter
View all variants →
Other variants
LP500-25.4 Yellow Longpass Filter
LP515-25.4 Yellow-Orange Longpass Filter
LP530-25.4 Orange Longpass Filter
LP550-25.4 Orange Longpass Filter
LP580-25.4 Orange Longpass Filter
LP590-25.4 Red Longpass Filter
LP610-25.4 Red Longpass Filter
LP630-25.4 Red Longpass Filter
LP645-25.4 Dark Red Longpass Filter
LP550-D15x2 Orange Longpass Filter
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Product Overview
Filter by MidOpt, Mounted Long Pass Filter, Infrared: A reflective infrared filter with a cut-off wavelength of 665 nm, optimized for eliminating near-infrared light in visible imaging applications.
The LP665-25.4 Longpass Filter by MidOpt allows wavelengths above 665 nm to pass while blocking shorter wavelengths, making it suitable for infrared imaging applications. The filter enhances contrast and detail in scientific research, machine vision, and industrial inspection tasks. Its reflective design provides high efficiency, while the mounted 25.4 mm format allows easy integration with imaging systems.
Product Specifications
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Color - Dark Red, Infrared, Light Yellow, Orange, Red, Yellow, Yellow-Orange
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![Cut-off [nm]](data:image/svg+xml;base64,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)
Cut-off [nm] - 665
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Manufacturer - MidOpt
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Mechanical Type - Mounted filter
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![Optical Size [inch]](data:image/svg+xml;base64,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)
Optical Size [inch] - Long pass
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Product Type - Filter
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![Thickness [mm]](data:image/svg+xml;base64,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)
Thickness [mm] - 3
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