Invention Grant
US08192021B2 Multi-tint ophthalmic lenses for night vision 有权
多色夜视眼镜

Multi-tint ophthalmic lenses for night vision
Abstract:
The present invention relates to an ophthalmic lens comprising, on its surface, a first central yellow zone preferentially absorbing the blue light of the visible spectrum, a second peripheral zone preferentially absorbing light having wavelengths of less than 600 nm, and preferentially a third zone which is colorless, grey, or brown in the lower part of the lens.
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