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An interference filter is an optical filter which reflects one or more than one spectral bands or lines and transmits others, while maintaining zero or near to zero coefficient of absorption for all wavelengths of interest. An interference filter can low pass high pass and band-rejection etc. Interference filters having multiple thin layers of dielectric material with various refractive indices. It can also contain metallic layers along with dielectric material and Interference filters contain also etalons that are implemented as tuneable interference filters. Interference filters are of various types including F – Band-pass Interference Filters, UV (193 - 399 nm), F – Band-pass Interference Filters, Visible (400 - 749 nm), F – Band-pass Interference Filters, Near IR (750 - 1900 nm), F – Band-pass Interference Filters, Infrared (2 - 6 µm), LPF - Long Wave-pass Filters, SPF - Short Wave-pass Filters, edge filters, notch filters, i-line filters and beam splitters etc. Interference filter’s having important characteristic of the filter that is the form of the leaving signal, which is considered as the best form of a rectangle. Interference filter are normally designed for normal incidence. So, if you are looking for high precision optical equipment’s including optical lenses, prisms, beam-splitters, wave-plates, polarizer, interference filters, laser mirrors, BBO crystal, achromatic lenses, cylindrical lenses, CaF2 window and so on.. Now, you can get optical components in both customized designs within reasonable prices. Calcium fluoride (CaF2) window is available in various sizes which offer high transmission rates and low dispersion rates due to an Abbe number of 95 with many others desirable physical and chemical properties. Its faces are polished and oriented randomly relative to the crystal axis for minimizing birefringence and it also water, heat and chemical resistance. Calcium fluoride can be used up to 1000 oC in dry places and it will degrade in moisture whenever temperature exceeding than 600 oC. Cylindrical Lens are mostly used and designed for correct astigmatism, circularize line shaped diode laser beams, and image spectrographic entrance slits. And Cylindrical Lenses are typically used to focus incoming light to a line or cylindrical curve which is coated or polished with different materials, or to change the aspect ratio of an image. Cylindrical Lenses have a single cylindrical surface for incoming light to be focused in only a single dimension and it splits rays on different angles. Cylindrical Lenses are available in positive and negative both focal lengths which is ideal for laser line generation and anamorphic beam shaping to produce circularize laser outputs for accurate precisions. Please review our policies and procedures; Interference filter let us know if you have any questions or concerns by contacting us at Customer Service - http://www.cn-optics.com/
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Interference filters, Cylindrical lenses, CaF2 Window,
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