| abstract |
The present invention is to provide an optical member capable of cutting ultraviolet rays, and a thermoplastic resin for the same, without using means such as containing an ultraviolet absorber in the resin, using an ultraviolet cut filter, or using an ultraviolet absorption coating. The purpose. The thermoplastic resin of the present invention contains a three-dimensional structural component unit, The three-dimensional structural component unit contains 4 or more aromatic groups selected from the group consisting of monocyclic aromatic groups and condensed polycyclic aromatic groups, In the three-dimensional structural component unit, three or more monocyclic aromatic groups and/or heteroaromatic groups have a conjugated structure, one or more monocyclic aromatic groups and one or more condensed polycyclic aromatic groups have a conjugated structure, or two The above condensed polycyclic aromatic group has a conjugated structure, In the 0.1 mass % dichloromethane solution, the light transmittance at a wavelength of 355 nm is less than 20%, and the light transmittance at a wavelength of 500 nm is 90% or more. |