Lens barrel member

• Main Authors: LEE BONG JAE, YOON JONG-TAE, ARIFIN ERIC
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A lens barrel member according to the present invention comprises: a lens barrel surrounding an outer periphery of a lens and fixed to a housing; and a housing accommodating the lens barrel, in which the lens barrel is formed from a thermoplastic resin composition containing about 100 parts by weight of a polycarbonate resin, about 0.5-9 parts by weight of a modified polyolefin, and about 3-35 parts by weight of polymethylsilsesquioxane fine particles having an average particle diameter of about 2-10 [mu] m, and a weight ratio of the modified polyolefin to the polymethylsilsesquioxane fine particles is from about 1: 1 to about 1: 12. The lens barrel member has excellent isotropy, low gloss, and excellent impact resistance. 根据本发明的透镜镜筒构件包括：透镜镜筒，其围绕透镜的外周并且固定至外壳；和外壳，其容纳透镜镜筒，其中透镜镜筒由热塑性树脂组合物形成，该热塑性树脂组合物含有约100重量份的聚碳酸酯树脂、约0.5～9重量份的改性聚烯烃和约3～35重量份的具有约2～10μm的平均粒径的聚甲基倍半硅氧烷精细颗粒，并且改性聚烯烃与聚甲基倍半硅氧烷精细颗粒的重量比为约1:1至约1:12。透镜镜筒构件具有卓越的各向同性、低光泽度和卓越的抗冲击性。