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Longpass Filters

Longpass Filters, also known as Longpass Edge Filters, are designed to transmit wavelengths greater than the cut-on wavelength of the filter. Longpass Filters are commonly used to isolate portions of the spectrum in a variety of industrial or life sciences applications including microscopy or fluorescence instrumentation. Longpass Filters are typically designed for a 0° Angle of Incidence, whereas Longpass Dichroic Filters are designed for using at a 45° Angle of Incidence. Longpass Filters can be used with Shortpass Filters to create custom bandpass filters. Certain Longpass Edge Filters can also be used as cold mirrors to minimize the heat buildup often caused by infrared radiation.
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    Yutai Optics offers a wide variety of longpass edge filters for performance in the ultraviolet, visible, or infrared wavelengths. Longpass Filters are available in a range of optical densities. Higher optical densities offer increased blocking capability. Our High Performance OD 4 Longpass Filters offer high blocking with superior transmission. The Dichroic Longpass Filters feature hard coatings for increased durability, while offering high performance for use in fluorescence applications or as spectral beamsplitters. Many customers like Yutai Optics’ longpass Edge Filters with kits, then it will be convenient when they are installed.
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