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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 is a Bandpass Optical Filters
In a certain wavelength band, there is only a small passband with high transmittance in the middle, and cutoff bands with high reflectivity are on both sides of the passband. This filter is collectively referred to as a bandpass filter. The main function is to perform spectral selection of light, so that the required light passes through and the unwanted wavelengths of light are cut off. At present, Bandpass Optical Filters are widely used as optical components for filtering and selecting spectral lines.
So what are the factors that affect the price of Bandpass Optical Filters?
First, the central wavelength is also the peak wavelength. Generally speaking, the higher the transmittance, the higher the transmittance, but it is also uncertain. The biological instrument filter used in the ultraviolet band does not need this high transmittance.
The second is the cut-off depth of the Bandpass Optical Filters. The better the cut-off depth is, the better the cut-off depth can be, the influence of clutter on the sensing components can be shielded, which will allow the optical sensing components to respond to more accurate signals.
Third, passband width, passband width cannot be generalized to say wide or narrow, but generally speaking, in Bandpass Optical Filters, the higher the pass rate, the narrower the passband width, and the cut-off depth OD value is small. However, the production process of such a bandpass filter has also become expensive.
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Add: Xiqiaotou Industrial Area, Shenze County, Shijiazhuang, Hebei, China
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