A lens barrel of the invention includes: an imaging optical system including a focus adjustment lens; a driver that drives the focus adjustment lens in a direction of an optical axis; a transceiver that transmits and receives a signal to and from a camera body; and a controller that controls the transceiver to repeatedly transmit a first image plane transfer coefficient which is determined in correspondence with a position of the focus adjustment lens included in the imaging optical system and a second image plane transfer coefficient which does not depend on the position of the focus adjustment lens to the camera body at a predetermined interval, and, when the controller repeatedly transmits the second image plane transfer coefficient to the camera body, the controller varies the second image plane transfer coefficient over time.

A computing device with a closable lid and camera on the lid has a reflector arranged to use the camera while the lid of the computing device is closed.

A computing device with a closable lid and camera on the lid has a reflector arranged to use the camera while the lid of the computing device is closed.

A lens barrel of the invention includes: an imaging optical system including a focus adjustment lens; a driver that drives the focus adjustment lens in a direction of an optical axis; a transceiver that transmits and receives a signal to and from a camera body; and a controller that controls the transceiver to repeatedly transmit a first image plane transfer coefficient which is determined in correspondence with a position of the focus adjustment lens included in the imaging optical system and a second image plane transfer coefficient which does not depend on the position of the focus adjustment lens to the camera body at a predetermined interval, and, when the controller repeatedly transmits the second image plane transfer coefficient to the camera body, the controller varies the second image plane transfer coefficient over time.

A control device including a main subject detection unit that detects a first main subject from among subjects included in a first image, and acquires main subject information indicating the first main subject, a distance information calculation unit that detects a distance of a subject included in a first image, and acquires first distance information indicating the distance, and a detection unit that detects a distance within which a first main subject is included on the basis of main subject information and first distance information, and acquires main subject distance information indicating the distance within which the first main subject is included.

An apparatus includes a sensor including a plurality of arranged pixels, having a first sensitivity for a first area of the plurality of arranged pixels and a second sensitivity lower than the first sensitivity for a second area of the plurality of arranged pixels during preliminary light emission of a flash, and a processing circuit configured to generate an image of a subject area to be imaged based on a signal obtained by performing correction corresponding to a difference between the first sensitivity and the second sensitivity on a signal acquired from the sensor.

An imaging device in which an autofocus function can be performed without using brightness information is provided. In an imaging device according to one aspect, a density of points obtained by plotting two-dimensional point data of a plurality of event data as points on a plane, the event data outputted from an imaging element in a predetermined period in a state in which a focal point of a light receiving lens is adjusted by an adjustment mechanism, is calculated as a point density. When the point density is calculated, a control unit drives and controls the adjustment mechanism based on comparison results between the point density currently calculated and the point density last calculated to thereby adjust the focal point toward the in-focus position. In another aspect, an imaging device having an autofocus function can be provided without using event data.

A driving apparatus includes a driving source supplied with a power and configured to generate a driving force, a first cam member configured to rotate in a first rotational direction in accordance with the driving force from the driving source, a driving member configured to drive a driven member as the first cam member rotates, and a second cam member configured to contact the driving member after an electrification to the driving source is stopped so as to rotate the first cam member in a second rotational direction opposite to the first rotational direction.

A driving apparatus includes a driving source supplied with a power and configured to generate a driving force, a first cam member configured to rotate in a first rotational direction in accordance with the driving force from the driving source, a driving member configured to drive a driven member as the first cam member rotates, and a second cam member configured to contact the driving member after an electrification to the driving source is stopped so as to rotate the first cam member in a second rotational direction opposite to the first rotational direction.

An image capturing device includes a movable mirror including a half mirror and circuitry to set a superimpose display mode that superimposes and displays an optical image of a finder optical system and an electronic image captured by an image sensor, and a consecutive photographing mode, control the movable mirror to rotate between a mirror-down position, in which the mirror is inserted in a photographing optical path, reflects light to a finder optical system, and transmits the light to an image sensor, and a mirror-up position in which the mirror is retracted from the photographing optical path and the light passes through to the image sensor, and prohibit the movable mirror from rotating to the mirror-up position and maintain the mirror-down position, when the superimpose display mode and the consecutive photographing mode are both set.