| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel which can simplify its structure and prevent inclination and axial displacement of the lens with respect to the retainer cylinder without rattling, while making its assembly easy and simple, and is especially applicable with high precision and stability to cemented lenses which significantly affect the optical characteristics, and can secure high quality and production yield. SOLUTION: In a lens barrel which has a lens 20 and a retainer cylinder 10, which defines the inner surface 11 with its axial center in the direction of the light axis L for retaining the lens, the lens 20 is fitted into the retainer cylinder 10, by making elastic deformations of the elastic stripes 14, formed projecting radially from the inner surface 11 of the retainer cylinder 10 and extending in the direction of the light axis L that is arranged circumferentially at equal spacing. Thus, the lens 20 is prevented from rattling, inclining, or displacing with respect to the retainer cylinder 10, while surely securing its centering and positioning, and firmly fixed. COPYRIGHT: (C)2007,JPO&INPIT
|
