Long-Pass Filter
Longpass filters are important optical elements in instruments and equipment, selectively transmitting or blocking particular wavelengths to separate and select spectral ranges. They are mainly used in near-infrared optical systems to transmit long-wave infrared radiation while blocking other wavelengths, ensuring system stability and accuracy. Typically made of high-quality flat glass, they receive precision optical surface treatment for excellent, stable performance. Multistep optical-film coating provides high transmission and low reflectance, reducing interference from unwanted wavelengths. Heat and corrosion resistance also support harsh environments. Applications include medical equipment, research, optical measurement, and infrared detection. In medical infrared imaging, they clearly reveal lesions and blood circulation to assist diagnosis. In research, they support infrared spectroscopy and physics experiments with accurate data and results. In optical cameras and infrared thermometers, they ensure measurement accuracy and stability. In infrared cameras and sensors, they improve detection effectiveness and sensitivity. Our company supplies high-quality longpass filters with stable optical performance and good durability. Advanced equipment and a technical team support customization for particular application requirements. Strict quality control ensures every delivered filter meets high optical standards. Please contact us for longpass filters or other optical components. We provide quality products and professional service to meet your needs.
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