LENS BARREL, INTERCHANGEABLE LENS, AND IMAGE CAPTURING APPARATUS

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LENS BARREL, INTERCHANGEABLE LENS, AND IMAGE CAPTURING APPARATUS

This abstract first appeared for US patent application 18887584 titled 'LENS BARREL, INTERCHANGEABLE LENS, AND IMAGE CAPTURING APPARATUS

Original Abstract Submitted

Provided is a lens barrel having a compact size and good optical performance. A lens barrel includes a lens, a barrel that holds the lens and is movable in a direction along an optical axis, a base member that has a cylindrical shape and is positioned on an outer periphery of the barrel, a guide bar of which at least one end is fixed to the base member, and a guide unit that is fixed to the barrel by a fixing portion and has a biasing member configured to bias a first rotating element and a second rotating element to the guide bar, in which, on a plane perpendicular to the optical axis, distances between a first contact that is a point where the guide bar and the first rotating element are in contact with each other, a second contact that is a point where the guide bar and the second rotating element are in contact with each other, and the biasing member and an optical axis center are longer than a distance between a center of the guide bar and the optical axis center, as viewed along the optical axis, the guide unit overlaps the base member, and the biasing member is disposed between the first contact and the second contact.