申请人:Mitsui Chemicals, Inc.
公开号:EP1878769A1
公开(公告)日:2008-01-16
There are provided a resin composition that is suitable for an optical component which, while maintaining moldability, low birefringence, heat resistance, mass productivity, mechanical strength, and light transmittance, hardly exhibits a low light transmittance during the use of a blue-violet laser beam source and a deterioration in optical properties, and an optical component produced by molding the resin composition, and a optical pickup device using the optical component. The present invention provides a resin composition comprising 0.05 to 5 parts by weight of the specific hindered amine compound based on 100 parts by weight of the polymer having an alicyclic structure in at least a part of repeating structural unit, an optical component produced by molding the resin composition, and a optical pickup device using the optical component.
本发明提供了一种适用于光学部件的树脂组合物,该光学部件在保持成型性、低双折射、耐热性、质量生产性、机械强度和透光率的同时,在使用蓝紫色激光光束源时几乎不会出现透光率低和光学特性劣化的现象,还提供了一种通过成型该树脂组合物生产的光学部件,以及一种使用该光学部件的光学拾取装置。本发明提供了一种树脂组合物,该树脂组合物包含 0.05 至 5 份(按重量计)特定受阻胺化合物(以 100 份(按重量计)具有脂环结构的聚合物的至少一部分重复结构单元为基准)、通过模塑该树脂组合物生产的光学元件以及使用该光学元件的光学拾取装置。