发明名称 |
OPTICAL LENS |
摘要 |
An optical lens formed of a polyester resin having a high refractive index, a low Abbe number and good moldability is provided. The optical lens is obtained by injection-molding a polyester resin containing a diol unit containing from 40 to 99% by mol of a unit derived from ethylene glycol and from 1 to 60% by mol of a unit derived from a diol having from 3 to 16 carbon atoms, and a dicarboxylic acid unit containing 50% by mol or more of a unit derived from a naphthalenedicarboxylic acid.
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申请公布号 |
US2011109980(A1) |
申请公布日期 |
2011.05.12 |
申请号 |
US200913003170 |
申请日期 |
2009.07.06 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
HIROKANE TAKESHI;KATO NOBUYUKI |
分类号 |
G02B1/04;B29C45/00;B29D11/00;G02B3/00;G02B11/02 |
主分类号 |
G02B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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