Abstract: A lens barrel includes: a first lens; a first tube that holds the first lens and moves along an optical axis; a focusing lens; an actuator that drives the focusing lens; and a second tube that holds the focusing lens and the actuator and moves along the optical axis.

Abstract: A calculation device calculating an amount of movement in an optical axis direction of a focusing lens which adjusts a focal position of an imaging optical system includes: a first input unit to which first information about a deviation between an imaging surface which captures an image by the imaging optical system and the focal position is repeatedly input; a second input unit to which second information about a shake of the imaging optical system in the optical axis direction is repeatedly input at intervals shorter than those of the first information; and a calculation unit which calculates the amount of movement on the basis of at least one of the first information and the second information, wherein the calculation unit calculates the amount of movement on the basis of the second information between an input of the first information and an input of the next first information.

Abstract: A calculation device calculating an amount of movement in an optical axis direction of a focusing lens which adjusts a focal position of an imaging optical system includes: a first input unit to which first information about a deviation between an imaging surface which captures an image by the imaging optical system and the focal position is repeatedly input; a second input unit to which second information about a shake of the imaging optical system in the optical axis direction is repeatedly input at intervals shorter than those of the first information; and a calculation unit which calculates the amount of movement on the basis of at least one of the first information and the second information, wherein the calculation unit calculates the amount of movement on the basis of the second information between an input of the first information and an input of the next first information.

Abstract: A lens barrel includes: a first lens; a first tube that holds the first lens and moves along an optical axis; a focusing lens; an actuator that drives the focusing lens; and a second tube that holds the focusing lens and the actuator and moves along the optical axis.

Abstract: A lens barrel and camera moves a lens in the optical axis direction at a high speed. This lens barrel is provided with: a first electromagnetic drive unit; a first lens holding frame, which holds a first lens, and moves the first lens in the optical axis direction by means of the first electromagnetic drive unit; a second electromagnetic drive unit; and a second lens holding frame, which holds a second lens, and moves the second lens in the optical axis direction by means of the second electromagnetic drive unit. The first lens holding frame is disposed on the inner circumference side of the second lens holding frame.

Abstract: A lens barrel includes: a first lens; a first tube that holds the first lens and moves along an optical axis; a focusing lens; an actuator that drives the focusing lens; and a second tube that holds the focusing lens and the actuator and moves along the optical axis.

Abstract: An interchangeable lens that is removably attachable to a camera body includes: a lens-side mount; a cylindrical portion; a lens-side terminal group; a first lens-side projecting portion disposed at an outer periphery side of the lens-side terminal group, the first lens-side projecting portion projecting outwardly from the cylindrical portion and extending in a circumferential direction of the cylindrical portion; a third lens-side projecting portion at least partly disposed at a position facing the first lens-side projecting portion across the optical axis, the third lens-side projecting portion projecting outwardly from the cylindrical portion and extending in the circumferential direction; and a cutout provided on the third lens-side projecting portion in the circumferential direction.

Abstract: An interchangeable lens that is removably attachable to a camera body includes: a lens-side mount; a cylindrical portion; a lens-side terminal group; a first lens-side projecting portion disposed at an outer periphery side of the lens-side terminal group, the first lens-side projecting portion projecting outwardly from the cylindrical portion and extending in a circumferential direction of the cylindrical portion; a third lens-side projecting portion at least partly disposed at a position facing the first lens-side projecting portion across the optical axis, the third lens-side projecting portion projecting outwardly from the cylindrical portion and extending in the circumferential direction; and a cutout provided on the third lens-side projecting portion in the circumferential direction.

Abstract: A lens barrel and camera moves a lens in the optical axis direction at a high speed. This lens barrel is provided with: a first electromagnetic drive unit; a first lens holding frame, which holds a first lens, and moves the first lens in the optical axis direction by means of the first electromagnetic drive unit; a second electromagnetic drive unit; and a second lens holding frame, which holds a second lens, and moves the second lens in the optical axis direction by means of the second electromagnetic drive unit. The first lens holding frame is disposed on the inner circumference side of the second lens holding frame.

Abstract: A lens barrel includes: a first lens; a first tube that holds the first lens and moves along an optical axis; a focusing lens; an actuator that drives the focusing lens; and a second tube that holds the focusing lens and the actuator and moves along the optical axis.

Abstract: An imaging apparatus includes: an imaging unit that repeatedly captures images of a subject to obtain image information; a recording unit that records timing information indicative of a given point in time during an imaging period of the image information; and a display unit that displays an image corresponding to the timing information, which is extracted from the image information, in response to an end of the imaging period.

Abstract: An optical device comprising: an elastic body provided between a first frame and a second frame; a position determining portion provided to sandwich, with the elastic body, the first frame, and can determine a position of the first frame towards the elastic body; a fixing portion provided to sandwich, with the position determining portion, the first frame, and can fix the first frame to the position determining portion; and an energizing member energizing the first frame in a direction crossing a position determining direction of the first frame and a fixing direction of the first frame.

Abstract: An optical device comprising; an elastic body provided between a first frame and a second frame; a position determining portion provided to sandwich, with the elastic body, the first frame, and can determine a position of the first frame towards the elastic body; a fixing portion provided to sandwich, with the position determining portion, the first frame, and can fix the first frame to the position determining portion; and an energizing member energizing the first frame in a direction crossing a position determining direction of the first frame and a fixing direction of the first frame.

Abstract: An imaging apparatus includes: an imaging unit that repeatedly captures images of a subject to obtain image information; a recording unit that records timing information indicative of a given point in time during an imaging period of the image information; and a display unit that displays an image corresponding to the timing information, which is extracted from the image information, in response to an end of the imaging period.