申请人:Teijin Chemicals, Ltd.
公开号:EP1947131A1
公开(公告)日:2008-07-23
There are provided an optical element that comprises a polymer which has a structural unit derived from a specific dihydroxy compound typified by 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoro propane (bisphenol AF) and in which the relationship between a refractive index nD and an Abbe number νD satisfies the following formula (I): nD+0.0076×νD≤1.78
and that is used for correction of chromatic aberration, and an achromatic lens using the optical element.
提供了一种光学元件,它由一种聚合物组成,该聚合物的结构单元来源于一种特定的二羟基化合物,典型的是 2,2-双(4-羟基苯基)-1,1,1,3,3,3-六氟丙烷(双酚 AF),其中折射率 nD 和阿贝数 νD 之间的关系满足下式(I):nD+0.0076×νD≤1.78。
用于校正色差,以及使用该光学元件的消色差透镜。