METHOD FOR MANUFACTURING SPECTACLE LENS, AND LENS HOLDER
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United States of America Patent
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Jan 22, 2015
app pub date -
Jan 29, 2013
filing date -
Jan 31, 2012
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Abstract
When a dyeing treatment is applied to a spectacle lens in a state that the lens is dipped in a dyeing liquid, an optical surface of the spectacle lens is held in a state of facing a sealed space by mounting the spectacle lens on a cup-type lens holding member, and the dyeing treatment is applied to the spectacle lens in a state that one optical surface is dipped in the dyeing liquid and in a state that the other optical surface is not dipped in the dyeing liquid, in two optical surfaces and of the spectacle lens.
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