Light amount adjustment blade, the light quantity adjusting device and an optical device using the same.

摘要

PROBLEM TO BE SOLVED: To provide a light quantity adjusting device provided with a downsizeable light quantity adjusting blade, and optical equipment provided with the light quantity adjusting device and a lens.;SOLUTION: A light quantity adjusting blade 103 moving into an opening forming an optical path to adjust light quantity is formed from a curved plate-like member, and has a part to be supported to be the center of rotation of the light quantity adjusting blade 103, and a rotation regulation part 103d for regulating an operation with the part to be supported as a rotation center, wherein a support surface direction of the part to be supported substantially crosses a regulation surface direction of the rotation regulation part 103d.;COPYRIGHT: (C)2014,JPO&INPIT