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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.
What are the application areas of Bandpass Optical Filters in china
Bandpass Optical Filters in china are filters with cut-off bands on both sides of the transmission band of the spectral characteristic curve. Bandpass Optical Filters in china are roughly divided into broadband filters and narrow-band filters according to spectral characteristics. There are two types of filters. Usually it is used in combination. Bandpass Optical Filters in china are prepared based on the principle of light wave interference, and Bandpass Optical Filters in china have been widely used in various fields. Bandpass Optical Filters in china is a kind of important optical thin film components, it has been widely used in the fields of chemical spectroscopy, laser, astrophysics, optical fiber communication biology, the spectral curve of Bandpass Optical Filters in china prepared by light wave interference principle , 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.
Bandpass Optical Filters in china In the practical application of optical engineering, not all the places where Bandpass Optical Filters in china are needed hope that the narrower the passband, the better, and some of them need broadband filters. For example, the automatic dimming mask for electric welding protection requires the use of a Bandpass Optical Filters in china that are transparent to visible light and control the depth of infrared and infrared. The visible light transparent zone of the color with the transmittance of the center of visible light transparency is not less than 50%. Among them, the narrow-band filter can be used in the dense wavelength division multiplexer technology for ultra-narrow optical fiber communication systems. In addition to the filter must have good thermal stability and low insertion loss. In addition to the characteristics of small polarization-dependent loss, in order to correctly extract each carrier from a beam of light containing multiple wavelengths at the transmission optical terminal, there is no crosstalk. There are also optical comb filters.
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