Resin composition for optical material and its shaped article, optical component and lens
AssigneeFUJIFILM Corporation
InventorSeiya SAKURAI
Life of this patent
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Abstract
A resin composition for optical material, having a refractive index nD at a wavelength of 589 nm of at least 1.37, an Abbe's number vD satisfying vD≦63 and vD≦430−250×nD, and a glass transition temperature of not lower than 100° C. has high refractivity, low dispersiveness, heat resistance, good transparency and good releasability from mold.
Claims20
A resin composition for optical material, having a refractive index nD at a wavelength of 589 nm of at least 1.37, an Abbe's number vD satisfying vD≦63 and vD≦430−250×nD, and a glass transition temperature of not lower than 100° C.
A resin composition for optical material, containing a polymer having a fluorine-containing ring structure and having a recurring unit represented by the following formula (1):
- wherein R1 to R4 each independently represent a hydrogen atom, a fluorine atom, a substituted or unsubstituted alkyl group, an alkyl group having a fluorine atom, an alkoxy group having a fluorine atom, an ether bond-containing alkyl group having a fluorine atom, or a substituent of —COORS or —OCOR5;
- at least two of R1 to R4 may bond to each other to form a ring structure;
- R5 represents a substituted or unsubstituted alkyl group, or an alkyl group having a fluorine atom;
- the compound contains at least one fluorine atom in R1 to R4;
- and
- m indicates 0 or 1.
Dependencies are inferred from the claim text.