Optical material and optical element, diffraction optical element, and stacked type diffraction optical element molded thereof

摘要

Use of an organic optical material whose Abbe's number (&ngr;d) and secondary dispersion (&thetas;g,F) satisfy the relationship &thetas;g,F≦̸−2&ngr;d×10−3+0.59 provides an optical material which causes reduced optical scattering, the optical material having excellent optical scattering characteristics and secondary dispersion characteristics equivalent to those of a compound in which fine particles of conductive metal oxides such as ITO are dispersed in an organic resin.