An image sensor includes: light receiving units disposed two-dimensionally on a substrate; color filters disposed on the light receiving units and including at least one of: a blue color filter for passing both of blue light and blue-violet light; a cyan color filter for passing both of green light and the blue-violet light; and a magenta color filter for passing both of red light and the blue-violet light; a first film arranged on a light receiving unit on which the cyan color filter is disposed, among the light receiving units, the first film having a peak of reflectivity near 450 nm; and a second film arranged on a light receiving unit on which the magenta color filter is disposed, among the light receiving units, the second film having a peak of reflectivity between 450 nm and 500 nm.

In a vehicle-mounted camera system, an appropriate white balance correction processing according to a situation is executed to a long exposure time image and a short exposure time image shot in variously changing illumination environments. A vehicle-mounted camera system includes a vehicle-mounted camera that performs relatively long exposure time shooting and short exposure time shooting, a signal processing device (signal processing device) that executes a white balance correction processing for each of a long exposure time image and a short exposure time image, composes these images after the white balance correction processing, and generates a high dynamic range image, and a system control part (processing switch device) that obtains an illumination environment in which the vehicle is placed, and switches the white balance correction processing for the long exposure time image and the white balance correction processing for the short exposure time image according to the illumination environment.

The present invention provides an imaging device and a focusing control method capable of enhancing accuracy of a focusing control regardless of subjects even when levels of detection signals of phase difference detection pixels are low. A phase difference AF processing unit (19) generates a defocus amount (Df1) from a result of a correlation operation performed with respect to detection signals obtained by adding up detection signals of plural phase difference detection pixels (52A, 52B) in a pair line (PL1) present in a selected AF area (53) and detection signals of phase difference detection pixels (52A, 52B) in pair lines (PL2, PL3) present in a selected direction among plural directions which are crossing directions crossing an X direction with respect to each of the plural phase difference detection pixels (52A, 52B) in the pair line (PL1). A system control unit (11) performs a focusing control based on the defocus amount (Df1).

A solid state imaging device that includes a phase difference detection pixel which is a pixel for phase difference detection; a first imaging pixel which is a pixel for imaging and is adjacent to the phase difference detection pixel; and a second imaging pixel which is a pixel for imaging other than the first imaging pixel. An area of a color filter of the first imaging pixel is smaller than an area of a color filter of the second imaging pixel.

An imaging device includes an imaging element, a weight calculating section, and an interpolation processing section. The imaging element includes normal pixels and functional pixels, the functional pixels being arranged at nonuniform intervals in a first direction. The weight calculating section calculates a first weight and a second weight, the second weight being smaller than the first weight. The interpolation processing section performs pixel interpolation to interpolate the pixel value of each of the functional pixels based on the pixel values obtained by the peripheral normal pixels where the first weight and the second weight are applied to a pixel value obtained by each of the normal pixels arranged in the first direction and a direction different from the first direction, respectively.

An apparatus for acquiring images includes an image sensor and a signal processor. The image sensor may include a sensor substrate and a color separation lens array, wherein the sensor substrate includes a plurality of photo-sensing cells, and the color separation lens array may separate an incident light into a plurality of lights having different wavelengths and forms a phase distribution for condensing the plurality of lights having the different wavelengths on adjacent photo-sensing cells of the plurality of photo-sensing cells. The signal processor may perform deconvolution on sensing signals of the plurality of photo-sensing cells to obtain a sub-sampled image, perform demosaicing to restore a full resolution image having a full resolution from the sub-sampled image, and correct a color of the full resolution image using a point spread function (PSF) of the color separation lens array.

Provided is an image sensor including a sensor substrate including a first photosensitive cell and a second photosensitive cell which are configured to sense light incident on the sensor substrate, a color separating lens array configured to change a phase of first wavelength light and a phase of second wavelength light such that the first wavelength light travels to the first photosensitive cell and the second wavelength light travels to the second photosensitive cell, and a spectrum shaping layer including a plurality of nanostructures respectively having a first refractive index, and a dielectric material provided between the plurality of nanostructures and having a second refractive index, the spectrum shaping layer being provided between the sensor substrate and the color separating lens array and configured to shape a spectral profile of the light incident on the sensor substrate by reflecting and/or absorbing portion of light passing through the color separating lens array.

Provided is an image sensor including a sensor substrate including a plurality of first pixels configured to sense first wavelength light in an infrared ray band and a plurality of second pixels configured to sense second wavelength light in a visible light band, and a color separating lens array disposed on the sensor substrate and configured to change a phase of the first wavelength light incident on the color separating lens array such that the first wavelength light is condensed to the plurality of first pixels, wherein the color separating lens array includes a plurality of light condensing regions configured to condense the first wavelength light respectively on the plurality of first pixels, and wherein an area of each of the plurality of light condensing regions is larger than an area of each of the plurality of first pixels.

Provided is an image sensor including a sensor substrate including a first pixel configured to sense light of a first wavelength, and a second pixel configured to sense light of a second wavelength, and a color separating lens array configured to concentrate the light of the first wavelength on the first pixel, and the light of the second wavelength on the second pixel, the color separating lens array including a first pixel-corresponding area corresponding to the first pixel, and a second pixel-corresponding area corresponding to the second pixel, wherein a first phase difference between the light of the first wavelength that has traveled through a center of the first pixel-corresponding area and a center of the second pixel-corresponding area is different than a second phase difference between the light of the second wavelength that has traveled through the center of the first pixel-corresponding area and the center of the second pixel-corresponding area.

An image sensor according to some example embodiments includes a pixel array unit including a plurality of transmission signal lines and a plurality of output signal lines, and a plurality of pixels connected to the plurality of transmission signal lines and the plurality of output signal lines. Each of the plurality of pixels includes a plurality of photoelectric conversion elements, which are configured to detect and photoelectrically convert incident light. The plurality of pixels include at least one autofocusing pixel and at least one normal pixel.