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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.
Introduction of UV Longpass Filters
UV Longpass Filters is a band-pass filter that allows light of a certain bandwidth near a certain wavelength of ultraviolet (wavelength less than 400nm) to pass through, and light in other ranges is cut off.
Refers to the absorption of ultraviolet light, also known as the anti-fog filter. Due to the scattered state of ultraviolet rays in the atmosphere, for long-range photography on sunny days, the fog that is invisible to the naked eye appears, causing the photos to become dull. The filter used to intercept this harmful ultraviolet light is UV Longpass Filters. Both black and white photography and color photography can be used without exposure multiple. As another use of UV Longpass Filters, it can be used to protect the lens.
With ultra-high cut-off background depth, it can greatly improve the system signal-to-noise ratio.
Most UV Longpass Filters are packaged in a black anodized aluminum case with a logo printed on the case, and the arrow mark represents the transmission direction of light inside the filter.
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We truly realize one-stop service from raw material melting to end product production, and provide customers with a full range of technical solutions.
CONTACTEZ-NOUS
Tel/WhatsApp: +86-13722872933
Email: zyoptics@zygx.cn
Add: Xiqiaotou Industrial Area, Shenze County, Shijiazhuang, Hebei, China
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