Col­ored Tint

Popular Science - - GOODS -

Rather than shad­ing the lens it­self—which could lead to un­even col­oration as a re­sult of the pre­scrip­tion-cut­ting process—Ray-Ban ap­plies color as a sep­a­rate poly­car­bon­ate layer. Dyes mix with the raw ma­te­rial prior to mold­ing.

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