| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel which has no sink and has high accuracy, has little strength anisotropy and has antistatic property even though it is thin and has unevenness in thickness. SOLUTION: The lens barrel is composed of a resin material, a foaming additive, carbon nanotubes, a layered silicate and, optionally, glass fibers and carbon fibers. COPYRIGHT: (C)2007,JPO&INPIT |
