Invention Grant
US08047650B2 Ophthalmic devices having a highly selective violet light transmissive filter and related methods 有权
具有高选择性紫光透射滤光片的眼科装置及相关方法

Ophthalmic devices having a highly selective violet light transmissive filter and related methods
Abstract:
Ophthalmic devices are provided having a violet-light vertical cut-off filter abruptly absorbs light between the wave lengths of between approximately and 400 nm and 450 nm such that a curve when plotted as percent transmission versus wavelength has the shape as depicted in FIG. 2. In one embodiment the ophthalmic devices are made from acrylates and the light absorbing compound is an Eastman Yellow 035 MA dye.
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