Patent ID: 8564894
Filing Date: 2013-10-22
Classification: G02B

Abstract:
1. A lens barrel, comprising: an imaging optical system, including: a first optical path regulating section being separated from the aperture structure and extending from a main barrel, the first optical path regulating section being formed on an image plane side of the first aperture, wherein a height between an inner edge in a radial direction of the first optical path regulating section and the optical axis is smaller than an aperture radius of the first aperture and is larger than a radius of an outermost imaging light flux of the imaging optical system at a same position as the first optical path regulating section in a direction of the optical axis; and a second optical path regulating section integrally formed with the holding frame, wherein a height between an outer edge in the radial direction of the second optical path regulating section and the optical axis is smaller than the aperture radius of the first aperture and is larger than the height between the inner edge of the first optical path regulating section and the optical axis.