| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical lens which has superior transparency, low birefringent property and superior mechanical strength and can be made small and ununiform in thickness or made large and thin. SOLUTION: The optical lens is molded using a block copolymer having a polymer block [A] containing repeating units with an alicyclic structure and a polymer block [B] having repeating units with an alicyclic structure in a lower mole fraction than that in the block [A] and containing repeating units derived from a vinyl compound.
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