The present disclosure discloses a dual-core focusing image sensor, a focusing control method for the same and an electronic device. The dual-core focusing image sensor includes an array of photosensitive pixels, an array of filter units arranged on the array of photosensitive pixels and an array of micro lenses arranged above the array of filter units. The array of micro lenses includes at least one first micro lens and a plurality of second micro lenses, each second micro lens is corresponding to one photosensitive pixel, each first micro lens is corresponding to one focusing photosensitive unit, each focusing photosensitive unit includes N*N photosensitive pixels, and at least a part of the focusing photosensitive unit is covered by a white filter unit, where N is an even number greater than or equal to 2.

Image plane phase difference pixels that can handle incident light at two or more chief ray angles are realized. A solid-state imaging device includes a pixel, the pixel including a microlens that condenses light from a subject, a photoelectric conversion unit that receives the subject light condensed by the microlens to generate an electrical signal according to an amount of received light, and a light shielding portion provided between the photoelectric conversion unit and the microlens. The light shielding portion includes an edge portion formed across over a light receiving surface of the photoelectric conversion unit, and the edge portion includes a first edge portion and a second edge portion at positions different from each other both in a first direction corresponding to an up and down direction of an output image and a second direction corresponding to a left and right direction of the output image.

A control apparatus (106) includes an acquirer (106a) which acquires a first imaging signal that is read in a first mode from a first pixel area of an image sensor and a second imaging signal that is read in a second mode from a second pixel area of the image sensor, the image sensor including a plurality of photoelectric converters corresponding to a single microlens, and an image processor (106b) which performs noise reduction processing on the first and second imaging signals, the first mode is a mode in which pixel signals of photoelectric converters are added to each other to be read from the image sensor, and the second mode is a mode in which a pixel signal of at least one of the photoelectric converters is read independently as a predetermined signal.

An image pickup apparatus corrects defocusing caused by an aperture difference to prevent degradation in AF focusing accuracy. In the image pickup apparatus, an image shift amount is detected based on a pair of picture signals by a phase difference AF method. When a first aperture at a time of a focus detection operation for detecting an image shift amount by a focus detection unit differs from a second aperture at a time of an image shooting operation for recording an image signal acquired from an image pickup device, a correction amount of a position of a focus lens due to a difference between a first aperture and a second aperture is calculated, by using a correction amount acquired from a first storage unit and a difference in the position of the focus lens between the first aperture and the second aperture acquired from a second storage unit.

The image-capturing apparatus includes an image sensor configured to capture an object image formed by an image-capturing optical system, a focus detector configured to produce a focus state of the image-capturing optical system to produce focus detection information, a first acquirer configured to acquire a first correction value relating to the image-capturing optical system, and a second acquirer configured to acquire a second correction value relating to the image sensor. The apparatus further includes a controller configured to perform focus control using the focus detection information corrected with the first and second correction values.

An optical apparatus is an image-capturing apparatus to which an image-capturing optical system is interchangeably attached. The optical apparatus comprises an image sensor 122 configured to capture an object image formed via the image-capturing optical system, a focus detector 129 configured to perform focus detection by a phase difference detection method using the image sensor and a controller 125 having a processor which executes instructions stored in a memory or having circuitry, the controller being configured to calculate a drive amount of a focus element using a defocus amount acquired by the focus detection and a focus sensitivity of the image-capturing optical system. The controller acquires correction data unique to the attached image-capturing optical system and corresponding to a blue spread amount on the image sensor, and calculates the drive amount using the focus sensitivity corrected by using the correction data.

The present disclosure relates to an image sensor and an electronic device that can reduce occurrence of a problem not only in a case of adding and using outputs of a plurality of PDs that share one of on-chip lenses but also in a case of using them individually. An image sensor according to a first aspect of the present disclosure includes: a light receiving element that generates charges by photoelectric conversion; an on-chip lens that is shared by a plurality of light receiving elements and condenses incident light onto the plurality of light receiving elements; and an AD convertor that converts charges generated by the light receiving element to a digital signal. Exposure timings of the plurality of light receiving elements sharing one of the on-chip lenses are the same. The present disclosure can be applied, for example, to image pickup devices having an image-plane phase-difference detection AF function.

There are provided an imaging device, a focusing control method, and a focusing control program which are capable of realizing focusing control at a high speed with high accuracy. A digital camera includes an imaging element 5 that has pixels including phase-difference detecting pixels 52A and 52B and images a subject through an imaging optical system including a focus lens, and a system controller 11 that selectively performs focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The system controller 11 performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N is a natural number of 2 or more) while the focusing control using the phase difference AF method is continuously performed.

The present disclosure provides a photography processing method for a camera module, a terminal, and a computer-readable storage medium. The method includes: controlling the photosensitive unit array to enter a focusing mode; reading a first set of output values of the M pairs of first focusing photosensitive units; reading a second set of output values of the N pairs of second focusing photosensitive units; performing focusing control according to the first set of output values and the second set of output values.

An image sensor, a focusing control method, and an electronic device are disclosed. The image sensor includes: a photosensitive unit array, a filter unit array disposed above the photosensitive unit array, and a micro-lens array located above the filter unit array. The photosensitive cell array includes one or more focusing photosensitive cells and multiple non-focusing photosensitive cells. Each of the focusing photosensitive cells includes multiple photosensitive pixels. The micro-lens array includes one or more first micro-lenses and multiple second micro-lenses; wherein each of the focusing photosensitive cells is covered by a corresponding one of the first micro-lenses, and each of the non-focusing photosensitive cells is covered by N*N of the second micro-lenses; wherein N is a positive integer.