| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite optical element composed of only a resin having an effect on reducing chromatic aberration and other aberration in an optical system.SOLUTION: The composite optical element is obtained by mutually sticking and laminating two layers, i.e. a synthetic resin layer containing sulfur in a repeating unit and a synthetic resin layer having any ring structure out of a benzene ring, a naphthalene ring and an anthracene ring and not containing sulfur in a repeating unit. |
