Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kunio Hatanaka0
Yoshihiko Imanaka0
Masanori Monri0
Date of Patent
April 20, 2010
Patent Application Number
12084620
Date Filed
November 8, 2006
Patent Primary Examiner
Patent abstract
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 (I)and that is used for correction of chromatic aberration, and an achromatic lens using the optical element.
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