| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel in which the reflection of stray light in the inner wall face of the lens barrel is suppressed, unnecessary light is prevented from entering an optical system, thus ghosts and flare are suppressed. SOLUTION: A fine rugged structure 11, having a pitch and a size of the wavelength of visible light or smaller, is provided at least a part of the inner wall face of the lens barrel 10 and the fine rugged structure is formed of an aluminum anode oxide film. COPYRIGHT: (C)2005,JPO&NCIPI
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