Optical filter
Optical Filters selectively transmit, reflect, block, or attenuate spectral wavelengths. Types include bandpass, longpass, shortpass, dichroic, neutral density (ND Filter), notch, cold mirror, hot mirror, and color filters. By manufacturing method, they include interference and absorptive color filters. Applications span spectroscopy, biomedicine, machine vision, fluorescence microscopy, and industrial automation. Bandpass filters selectively transmit or block wavelengths within their spectral range. Neutral density filters (ND Filter) reduce transmission and optical flux over specified ranges to protect sensors and electronic components, with extensive use in laser optics and optoelectronics. Cold and hot mirrors selectively reflect or transmit longer wavelengths and are widely used to remove heat from illumination systems. Dongkeda offers interference filters in various transmissions and sizes.
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Related Products
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FL490FF-FISH FISH Excitation Block
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Situoli
EX490/20 Excitation Filter - Center Wavelength: 490nm EX490/20 Excitation Filter - Half Bandwidth: 20nm EX490/20 Excitation Filter - Effective Wavelength Band [Narrowband Cyan-Green Light Excitation]: 480nm ~ 500nm
Full product name: Mirror Unit for fluorescence microscopy, bandpass fluorescence excitation block specifically for FISH-Green. Optical configuration: excitation filter EX490/20 + dichroic beamsplitter DM510 + emission filter EM530/30. Standard accessory: dedicated protective storage case (including case). Compatible fluorescence systems: FISH-Green green probes, GFP green fluorescent protein and Green-series fluorescent dyes.
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FL435LFF-FISH FISH Excitation Block
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EX435/20 Excitation Filter - Center Wavelength: 435nm EX435/20 Excitation Filter - Half Bandwidth: 20nm EX435/20 Excitation Filter - Effective Wavelength Band [Blue Narrowband Excitation]: 425nm ~ 445nm
Full product name: Mirror Unit for fluorescence microscopy, bandpass fluorescence excitation block specifically for FISH-Aqua. Optical configuration: excitation filter EX435/20 + dichroic beamsplitter DM450 + emission filter EM530/50. Standard accessory: dedicated protective storage case (including case). Compatible fluorescence systems: FISH-Aqua probes, green fluorescent dyes and broadband green fluorescent labels.
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FL390FF-FISH FISH Excitation Block
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EX390/25 Excitation Filter - Center Wavelength: 390nm EX390/25 Excitation Filter - Half Bandwidth: 25nm EX390/25 Excitation Filter - Effective Wavelength Band [Narrowband UV-Blue Light Excitation]: 377.5nm ~ 402.5nm
Full product name: Mirror Unit for fluorescence microscopy, bandpass fluorescence excitation block specifically for FISH-Blue. Optical configuration: excitation filter EX390/25 + dichroic beamsplitter DM410 + emission filter EM435/20. Standard accessory: dedicated protective storage case (including case). Compatible fluorescence systems: FISH-Blue blue probes, DAPI, Hoechst 33342 and blue fluorescent protein.
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FL440FF-FISH FISH Excitation Block
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EX440/30 Excitation Filter - Center Wavelength: 440nm EX440/30 Excitation Filter - Half Bandwidth: 30nm EX440/30 Excitation Filter - Effective Wavelength Band [Blue Narrowband Excitation]: 425nm ~ 455nm
Full product name: Mirror Unit for fluorescence microscopy, bandpass fluorescence excitation block specifically for FISH-Aqua. Optical configuration: excitation filter EX440/30 + dichroic beamsplitter DM460 + emission filter EM480/30. Standard accessory: dedicated protective storage case (including case). Compatible fluorescence systems: FISH-Aqua cyan fluorescent probes, CFP cyan fluorescent protein and Aqua-series fluorescent dyes.
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FL543FF-FISH FISH Excitation Block
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EX543/20 Excitation Filter - Center Wavelength: 543nm EX543/20 Excitation Filter - Half Bandwidth: 20nm EX543/20 Excitation Filter - Effective Wavelength Band [Narrowband Yellow-Green Light Excitation]: 533nm ~ 553nm
Full product name: Mirror Unit for fluorescence microscopy, bandpass fluorescence excitation block specifically for FISH-Orange. Optical configuration: excitation filter EX543/20 + dichroic beamsplitter DM560 + emission filter EM590/30. Standard accessory: dedicated protective storage case (including case). Compatible fluorescence systems: FISH-Orange orange fluorescent probes, Orange-series fluorescent dyes and ROX dye.
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