Asahi Spectra Co., Ltd.


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UV Shortpass Filter (Blocking range ~ 700nm)

High transmissionin UV region and block visible spectrum


Asahi spectra was successful in developing the UV shortpass filters that have high transmission in UV region (240nm ~ 400nm) and block visible spectrum up to 700nm by the state-of-the-art magnetron sputtering technology. Unlike the UV filters coated by conventional electron beam deposition, our new filters have excellent environmental durability even in high humidity.

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