Optical Filtration through interference layers

Wavelength Selection Filters: Transmission Band Pass, Minus, Notch

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Band Pass Coatings have a wide range of spectral applications with regards to "cleaning up" a signal or eliminating "noise" from undesirable periphery wavelengths

Intensity Beam Splitters, Average & Polarized Splitting, Plate and Cube

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Beam Splitting can be desired for something as simple as reducing intensity to creating a complex device such as optical alignment or interferometry

Hybrids: Beam Splitters: Absorbing Filters, Non Polarizing BS, Light Traps, Induced Transmission

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Hybrids have had applications dating back to the dawn of Astronaut Aviation. They have been known as Absorbing Filters, Metal Beam Splitters, and Light Trap Filters

Wavelength Beam Splitters: Edge Filters, Long Wave Passes, Short Wave Passes, Hot and Cold Mirrors

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These filters are also know by many names: Beam Splitters(splitting the spectrum rather than Intensity), Edge Filters,  Long Wave Pass, Short Wave Pass, And Some Are specifically know as Hot And Cold Mirrors 

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