Introduction of UV Longpass Filters-Zeyuan Optics|Focusing on optical glass processing

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Introduction of UV Longpass Filters

Mar 14,2023

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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.

UV Longpass Filters

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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Some details of UV Longpass Filters china

Do UV Longpass Filters filter ultraviolet rays

Some details of UV Longpass Filters china

Do UV Longpass Filters filter ultraviolet rays

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