An imaging apparatus includes a pixel array, a first adder, a second adder, a first A/D converter circuit, and a second A/D converter circuit. The pixel array includes a plurality of pairs of first pixels and second pixels. Each pair of the first pixel and the second pixel receives a light flux passing through a photography optical system by pupil-dividing the light flux. The first adder adds outputs of the first pixels and outputs of the second pixels. The second adder generates a first output by adding the outputs of the first pixels and generates a second output by adding the outputs of the second pixels. The first A/D converter circuit converts an output of the first adder to a digital signal. The second A/D converter circuit converts an output of the second adder to a digital signal.

A system enables near eye, see-through display of computer generated images (CGIs) to a user. The system includes see-through projection devices, an IMU device and a processor. The see-through projection devices are mounted within a frame of glasses worn on the head of the user. Each device includes a central field display to project the CGIs within the user's central field of view and a peripheral display to project the CGIs within the rest of a human field of view not including the central field of view. The peripheral display is disposed proximate the user's eye and the central field display is centrally disposed behind the peripheral display. The IMU device is mounted on the glasses to measure where the user's head is facing. The processor splits the CGIs between the central and peripheral displays based on where the virtual object is to be projected into the real world and where the user is facing.

Light quantity information of an imaging optical system is acquired according to a focus detection position in an imaging screen. Conversion is performed from the light quantity information and a first aperture value of the imaging optical system, so that the first aperture value is converted into a second aperture value according to the focus detection position. A conversion coefficient is set according to the second aperture value and an exit pupil distance. A correction value to correct output signals from an imaging unit is obtained according to the second aperture value and an exit pupil distance.

According to an aspect of the invention, an imaging apparatus includes: a focus detection unit configured to execute focus detection based on a phase difference between image signals obtained through photoelectric conversion of a light flux passing through different pupil partial regions of an imaging optical system; a first image blur compensation unit configured to compensate for image blur; a second image blur compensation unit configured to compensate for image blur; and a control unit that controls driving of the first image blur compensation unit and the second image blur compensation unit. The control unit controls a driving amount of the first image blur compensation unit and a driving amount of the second image blur compensation unit such that a change in vignetting occurring in the light flux passing through the imaging optical system is equal to or less than a predetermined value during a period in which the focus detection unit executes the focus detection.

A focus detection device includes a field lens, a secondary image forming lens configured to capture a light flux from the field lens and to form a pair of images from light fluxes from different pupil positions, and a photoelectric conversion device including a pixel region including at least one focus detection region pair that detects the pair of images. The photoelectric conversion device includes pixels arranged in the pixel region in a matrix. The photoelectric conversion device includes control lines each supplying control signal to at least a part of pixels on a corresponding row, and output lines each receiving a signal from at least a part of pixels on a corresponding column. At least a pair of the pixels connected to a common control line or a common output line form the at least one focus detection region pair and output signals to be used for focus detection.

A focus adjustment device comprising: a first detector which detects a focused state by a contrast detection system; second detectors which detect a focused state by a phase difference detection system; and a control unit which controls the first detector and second detectors so as to detect the focused state by the second detectors when detecting the focused state by the first detector.

An image capturing apparatus includes: a focus detection unit configured to detect a focus state of an imaging optical system; a reliability determination unit configured to determine reliability of the focus detection; and a control unit configured to control an opening of an aperture of the imaging optical system, wherein the control unit, if the reliability determination unit determines that reliability of the focus detection performed in a state in which the opening of the aperture is controlled to a first aperture opening state is less than a threshold value, changes the aperture to a second aperture opening state in which the opening of the aperture is reduced relative to the first aperture opening state, and wherein the control unit does not change the aperture to the second aperture opening state if a predetermined condition is satisfied.

An image sensor includes a plurality of pixels each including: a photoelectric conversion unit that photoelectrically converts incident light and generates electric charge; a reflective unit that reflects light that has passed through the photoelectric conversion unit back to the photoelectric conversion unit; and an output unit that outputs the electric charge generated by the photoelectric conversion unit, wherein: a position of the reflective unit possessed by each of the plurality of pixels varies.

A display controller including: a display control unit configured to, in response to a first case, perform control so that an image is displayed in a display mode among a plurality of display modes wherein the first case is a case where a receiving unit has received a manual focus operation in a first state in which a display item indicating information on focus is not superimposed or displayed on a live-view image captured by an imaging unit and the live-view image is displayed with a first magnification wherein the plurality of display modes include: a first display mode in which the display item is superimposed and displayed on the live-view image without enlarging the live-view image from the first magnification; and a second display mode in which the live-view image is displayed with a second magnification larger than the first magnification.

A digital camera includes an imaging element (5) having an imaging surface (50) where pixels (51) are arranged in two dimensions in a row direction X and in a column direction Y, an AF processing unit (19) that determines whether a focus lens is in a focused state using detection signals obtained from respective pixels (51) of a first pixel group including plural pixels (51) arranged in the row direction X and a second pixel group including pixels (51) arranged at the same distance in one direction that crosses the row direction X with respect to each of the plural pixels (51) of the first pixel group, in a state where the focus lens is at an arbitrary position, and a system control unit (11) that moves the focus lens until the AF processing unit (19) determines that the focus lens is in the focused state.