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AboutShijiazhuang Zeyuan Optics Co., Ltd. was founded in 1989. We are professional manufacturer integrating colored glass melting and optical filters producing.
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ProductsOur main products include heat absorbing filters, neodymium filter glass, rising color temperature glass, IR optical glass, UV pass optical filter glass, colored optical filters, neutral density filters, bandpass filters...
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BlogsOver the past thirty years since its establishment, our company has always adhered to the entrepreneurial spirit of proactive, innovative, perseverance to provide high-quality products and perfect services to many customers in domestic and abroad.
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ContactShijiazhuang Zeyuan Optics Co., Ltd. was founded in 1989. We are professional manufacturer integrating colored glass melting and optical filters producing.
Popular Science of Bandpass Optical Filters
The Bandpass Optical Filters is a filter with the cut-off band on both sides of the transmission band of the spectral characteristic curve. According to the spectral characteristics, the bandpass filter is roughly divided into two types: broadband filter and narrowband filter. Usually it is used in combination. Band-pass filters are prepared based on the principle of light wave interference, and band-pass filters have been widely used in various fields.
Bandpass Optical Filters are an important class of optical thin film components, which have been widely used in the fields of chemical spectroscopy, lasers, astrophysics, and optical fiber communication biology. The spectral curves of bandpass filters prepared by the principle of light wave interference , the spectral transmission region near the wavelength λ0 is called the passband of the filter. Usually there are cut-off areas on both sides, and there may be a bypass band around the cut-off area, which usually requires a colored glass absorption film or a cut-off filter to eliminate the bypass band. Usually, the six kings whose relative half-width is not less than 20% are called broadband filters.
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