Abstract: A focus detection device includes: a plurality of micro-lenses at which light fluxes through an image forming optical system enter, disposed in a two-dimensional array pattern; a plurality of light receiving elements disposed in correspondence to each of the plurality of micro-lenses; a focus detection unit that executes a detection of a defocus quantity of the image forming optical system by detecting, based upon outputs from the plurality of light receiving elements, a phase difference of a plurality of light fluxes through different areas of the image forming optical system; and a recognition unit that recognizes, based upon the outputs from the plurality of light receiving elements, characteristics of a subject image formed onto the plurality of light receiving elements via the plurality of micro-lenses, wherein: the focus detection unit detects the defocus quantity through a method optimal for the characteristics of the subject image recognized by the recognition unit.

Abstract: A focus detection device includes: a sensor outputting a pair of focus detection signal sequences, each of which being made of a plurality of focus detection signals; a difference calculation unit obtaining a plurality of differences by sequentially calculating differences between focus detection signals corresponding to each other in the pair of focus detection signal sequences; a division unit dividing the pair of focus detection signal sequences into at least two pairs of partial signal sequences based on the plurality of differences; a focus detection parameter calculation unit calculating a first focus detection parameter according to a phase difference amount of a first pair of partial signal sequences and a second focus detection parameter in accordance with a phase difference amount of a second pair of partial signal sequences; and a focus adjustment parameter determination unit determining either the first or second focus detection parameters, as a focus adjustment parameter.

Abstract: A focus detection device includes: a sensor outputting a pair of focus detection signal sequences, each of which being made of a plurality of focus detection signals; a difference calculation unit obtaining a plurality of differences by sequentially calculating differences between focus detection signals corresponding to each other in the pair of focus detection signal sequences; a division unit dividing the pair of focus detection signal sequences into at least two pairs of partial signal sequences based on the plurality of differences; a focus detection parameter calculation unit calculating a first focus detection parameter according to a phase difference amount of a first pair of partial signal sequences and a second focus detection parameter in accordance with a phase difference amount of a second pair of partial signal sequences; and a focus adjustment parameter determination unit determining either the first or second focus detection parameters, as a focus adjustment parameter.

Abstract: A focus detection device includes: a sensor outputting a pair of focus detection signal sequences, each of which being made of a plurality of focus detection signals; a difference calculation unit obtaining a plurality of differences by sequentially calculating differences between focus detection signals corresponding to each other in the pair of focus detection signal sequences; a division unit dividing the pair of focus detection signal sequences into at least two pairs of partial signal sequences based on the plurality of differences; a focus detection parameter calculation unit calculating a first focus detection parameter according to a phase difference amount of a first pair of partial signal sequences and a second focus detection parameter in accordance with a phase difference amount of a second pair of partial signal sequences; and a focus adjustment parameter determination unit determining either the first or second focus detection parameters, as a focus adjustment parameter.

Abstract: A focus detection device includes: a sensor outputting a pair of focus detection signal sequences, each of which being made of a plurality of focus detection signals; a difference calculation unit obtaining a plurality of differences by sequentially calculating differences between focus detection signals corresponding to each other in the pair of focus detection signal sequences; a division unit dividing the pair of focus detection signal sequences into at least two pairs of partial signal sequences based on the plurality of differences; a focus detection parameter calculation unit calculating a first focus detection parameter according to a phase difference amount of a first pair of partial signal sequences and a second focus detection parameter in accordance with a phase difference amount of a second pair of partial signal sequences; and a focus adjustment parameter determination unit determining either the first or second focus detection parameters, as a focus adjustment parameter.

Abstract: A focus detection device includes: a plurality of micro-lenses at which light fluxes through an image forming optical system enter, disposed in a two-dimensional array pattern; a plurality of light receiving elements disposed in correspondence to each of the plurality of micro-lenses; a focus detection unit that executes a detection of a defocus quantity of the image forming optical system by detecting, based upon outputs from the plurality of light receiving elements, a phase difference of a plurality of light fluxes through different areas of the image forming optical system; and a recognition unit that recognizes, based upon the outputs from the plurality of light receiving elements, characteristics of a subject image formed onto the plurality of light receiving elements via the plurality of micro-lenses, wherein: the focus detection unit detects the defocus quantity through a method optimal for the characteristics of the subject image recognized by the recognition unit.

Abstract: A focus detection device includes: a sensor outputting a pair of focus detection signal sequences, each of which being made of a plurality of focus detection signals; a difference calculation unit obtaining a plurality of differences by sequentially calculating differences between focus detection signals corresponding to each other in the pair of focus detection signal sequences; a division unit dividing the pair of focus detection signal sequences into at least two pairs of partial signal sequences based on the plurality of differences; a focus detection parameter calculation unit calculating a first focus detection parameter according to a phase difference amount of a first pair of partial signal sequences and a second focus detection parameter in accordance with a phase difference amount of a second pair of partial signal sequences; and a focus adjustment parameter determination unit determining either the first or second focus detection parameters, as a focus adjustment parameter.

Abstract: A focus detection device includes: a plurality of micro-lenses at which light fluxes through an image forming optical system enter, disposed in a two-dimensional array pattern; a plurality of light receiving elements disposed in correspondence to each of the plurality of micro-lenses; a focus detection unit that executes a detection of a defocus quantity of the image forming optical system by detecting, based upon outputs from the plurality of light receiving elements, a phase difference of a plurality of light fluxes through different areas of the image forming optical system; and a recognition unit that recognizes, based upon the outputs from the plurality of light receiving elements, characteristics of a subject image formed onto the plurality of light receiving elements via the plurality of micro-lenses, wherein: the focus detection unit detects the defocus quantity through a method optimal for the characteristics of the subject image recognized by the recognition unit.

Abstract: An image-capturing device includes: a micro-lens array in which a plurality of micro lenses are arrayed; a light reception element array having a plurality of groups of light reception elements respectively corresponding to the plurality of micro lenses, and that receives a ray bundle from an optical system via the micro lenses and outputs a plurality of received light signals; a detection unit that detects a deviation amount of an image surface by the optical system when the received light signals were obtained; and an image creation unit that selects a portion of the plurality of received light signals on the basis of the deviation amount detected by the detection unit, and creates an image on the basis of that selected portion of the received light signals.

Abstract: An image tracking device comprises an image pickup device that takes an image formed by an imaging optical system and outputs image information, a focus detector that detects a focusing state of the imaging optical system, a recognizer that stores reference information related to a reference image and recognizes a position of an image corresponding to the reference information, within an image corresponding to the image information, and a controller that performs first focus detection in which the focusing state is detected by the focus detector, before the position is recognized by the recognizer, and second focus detection in which the focusing state is detected for the position that has been recognized by the recognizer.

Abstract: An imaging apparatus includes: a light receiving device having a micro lens array in which a plurality of micro lenses are arrayed two-dimensionally, and a plurality of photoelectric conversion elements that are provided for the plurality of micro lenses, and that outputs a plurality of photoreception signals that are obtained by receiving optical flux from an optical system via the micro lenses; a detection device that, based on the photoreception signals, detects an amount of displacement between an image plane obtained from the optical system and an image plane obtained from the light receiving device; a focal point adjustment device that performs focal point adjustment on the optical system based on the displacement amount; and a control device that, when an image plane that corresponds to the displacement amount is contained within an image plane range within which it is possible to create an image that is based on the photoreception signal, creates an image of the image plane that corresponds to the dis

Abstract: There are provided a focus detector detecting a focusing state of an optical system with respect to a plurality of focus detection positions that are set in an imagefield of the optical system; a recognizer setting a reference image with respect to an image to be a reference, and recognizing a position corresponding to the reference image of an image in the optical system; a selector selecting the focus detection position to be a target of focus adjustment of the optical system based on one of the focusing state and a position corresponding to the reference image recognized by the recognizer; and a controller executing at least one of resetting of the reference image and a retrying recognition of the position corresponding to the reference image when the focus detection position is selected based on the focusing state.

Abstract: An imaging apparatus having a light receiving element having a micro lens array provided with a plurality of micro lenses, and a plurality of photoelectric conversion elements, and outputting a light receiving signal obtained by receiving a light beam from an optical system via the micro lens array; a detector that detects shift amounts of image plane by the optical system respectively for a plurality of focus detecting positions set at a plurality of positions in the image plane by the optical system; and a controller that determines a focus adjusting position for the optical system based on a plurality of the shift amounts detected respectively for the plurality of focus detecting positions and a range of the image plane where an image based on the light receiving signal is enabled to be produced, and obtains the light receiving signal at the focus adjusting position with the light receiving element.

Abstract: An imaging apparatus comprising: a light receiving element having a micro lens array provided with a plurality of micro lenses 111a arranged two-dimensionally, and a plurality of photoelectric conversion elements 112a provided for the plurality of micro lenses, and outputting a light receiving signal obtained by receiving a light beam from an optical system via the micro lens array; a detector 152 that detects a shift amount of image plane by the optical system for a plurality of focus detecting positions set at a plurality of positions in the image plane by the optical system; and a controller 160 that determines a focus adjusting range for the optical system based on the shift amount detected for each of the plurality of focus detecting positions, and obtains the light receiving signal at each of different positions within the focus adjusting range with the light receiving element.

Abstract: An imaging apparatus includes: a light receiving device having a micro lens array in which a plurality of micro lenses are arrayed two-dimensionally, and a plurality of photoelectric conversion elements that are provided for the plurality of micro lenses, and that outputs a plurality of photoreception signals that are obtained by receiving optical flux from an optical system via the micro lenses; a detection device that, based on the photoreception signals, detects an amount of displacement between an image plane obtained from the optical system and an image plane obtained from the light receiving device; a focal point adjustment device that performs focal point adjustment on the optical system based on the displacement amount; and a control device that, when an image plane that corresponds to the displacement amount is contained within an image plane range within which it is possible to create an image that is based on the photoreception signal, creates an image of the image plane that corresponds to the dis

Abstract: An imaging apparatus comprising: a light receiving element having a micro lens array provided with a plurality of micro lenses arranged two-dimensionally, and a plurality of photoelectric conversion elements provided for the plurality of micro lenses, and outputting a light receiving signal obtained by receiving a light beam from an optical system via the micro lens array; a detector that detects shift amounts of image plane by the optical system respectively for a plurality of focus detecting positions set at a plurality of positions in the image plane by the optical system; and a controller that determines a focus adjusting position for the optical system based on a plurality of the shift amounts detected respectively for the plurality of focus detecting positions and a range of the image plane where an image based on the light receiving signal is enabled to be produced, and obtains the light receiving signal at the focus adjusting position with the light receiving element.

Abstract: An imaging apparatus comprising: a light receiving element having a micro lens array provided with a plurality of micro lenses 111a arranged two-dimensionally, and a plurality of photoelectric conversion elements 112a provided for the plurality of micro lenses, and outputting a light receiving signal obtained by receiving a light beam from an optical system via the micro lens array; a detector 152 that detects a shift amount of image plane by the optical system for a plurality of focus detecting positions set at a plurality of positions in the image plane by the optical system; and a controller 160 that determines a focus adjusting range for the optical system based on the shift amount detected for each of the plurality of focus detecting positions, and obtains the light receiving signal at each of different positions within the focus adjusting range with the light receiving element.

Abstract: An image-capturing device includes: a micro-lens array in which a plurality of micro lenses are arrayed; a light reception element array having a plurality of groups of light reception elements respectively corresponding to the plurality of micro lenses, and that receives a ray bundle from an optical system via the micro lenses and outputs a plurality of received light signals; a detection unit that detects a deviation amount of an image surface by the optical system when the received light signals were obtained; and an image creation unit that selects a portion of the plurality of received light signals on the basis of the deviation amount detected by the detection unit, and creates an image on the basis of that selected portion of the received light signals.

Abstract: A focus adjustment device includes: a first focus detection unit that detects a focus adjustment state for a subject image in a first focusing area; a second focus detection unit that detects a focus adjustment state in a second focusing area through a method different from a method adopted by the first focus detection unit; a judgment unit that makes a judgment as to whether or not the first focusing area and the second focusing area have a specific positional relationship; and a focus adjustment unit that executes focus adjustment based upon focus detection results obtained via the first focus detection unit and focus detection results obtained via the second focus detection unit when the judgment unit decides that the first focusing area and the second focusing area have the specific positional relationship.

Abstract: There are provided a focus detector detecting a focusing state of an optical system with respect to a plurality of focus detection positions that are set in an imagefield of the optical system; a recognizer setting a reference image with respect to an image to be a reference, and recognizing a position corresponding to the reference image of an image in the optical system; a selector selecting the focus detection position to be a target of focus adjustment of the optical system based on one of the focusing state and a position corresponding to the reference image recognized by the recognizer; and a controller executing at least one of resetting of the reference image and a retrying recognition of the position corresponding to the reference image when the focus detection position is selected based on the focusing state.