Patent application number | Description | Published |
20090202234 | IMAGE-PICKUP APPARATUS AND IMAGE-PICKUP SYSTEM - An image-pickup apparatus ( | 08-13-2009 |
20090238551 | Focus Detection Apparatus and Focus Detection Method - This invention includes accumulation units ( | 09-24-2009 |
20100073527 | IMAGING APPARATUS - An imaging apparatus includes an image sensor including a first pixel group used for generating an image signal by photoelectrically converting an object image and a second pixel group configured to receive a light flux that has passed through divided areas of the exit pupil, a memory unit configured to store information about whether a defective pixel exists in any pixel included in the second pixel group, a control unit configured to execute calculation including combination processing on output signals of the second pixel group existing in a predetermined area, and a controller configured to control a shooting operation according to a result of the calculation by the calculation unit. The calculation unit is configured, if a defective pixel whose information is stored on the memory unit exists in the combination processing, to execute the calculation by using the output signals of the second pixel group. | 03-25-2010 |
20100290773 | FOCUS DETECTION APPARATUS - A focus detection apparatus that measures, in advance, and stores shading coefficients for light sources of different types, and in a focus detection operation, generates light source information for determining a light source that irradiates an object based on outputs from a plurality of photometry sensors with different spectral characteristics and switches the shading coefficient of a focus detection sensor among shading coefficients stored according to the light source information. | 11-18-2010 |
20110008033 | IMAGE PICKUP APPARATUS CAPABLE OF SELECTING FOCUS DETECTION AREA - An image pickup apparatus | 01-13-2011 |
20110102663 | FOCUS DETECTION APPARATUS - The invention provides a focus detection apparatus comprising: an image sensor configured to convert an object image, the image sensor having a focus detection pixel for receiving a light beam that has passed through a partial area, which is a division of an exit pupil of an optical system for forming an object image; addition unit configured to multiply outputs of a plurality of the focus detection pixels included in a predetermined area of the image sensor by a weighting coefficient corresponding to a position of the focus detection pixel, and perform addition; and defocus amount calculation unit configured to calculate a defocus amount based on a pair of phase-difference detection signals generated based on an output of the addition unit. | 05-05-2011 |
20110176794 | FOCUS DETECTION APPARATUS AND FOCUS DETECTION METHOD - A focus detection apparatus comprises: a photoelectric converter including a pair of line sensors to output electrical signals; a selection unit constructed to select one of focus detection points; a control unit constructed to divide the pair of line sensors into a plurality of pairs of blocks in accordance with different divisional patterns which make the resultant plurality of pairs of blocks respectively corresponding to the focus detection points, and read out electrical signals from each pair of blocks when the levels of the electrical signals of the pair of blocks reach a level suitable for focus detection; frame memories, constructed to store the read out electrical signals, corresponding to the divisional patterns; and a focus detection unit constructed to detect a focus state of an imaging lens, on the basis of a phase difference between electrical signals of the pair of blocks corresponding to the selected focus detection point. | 07-21-2011 |
20110262123 | FOCUS DETECTION APPARATUS - A focus detection apparatus includes an image pickup element | 10-27-2011 |
20130038778 | FOCUS DETECTION SENSOR AND OPTICAL APPARATUS USING THE SAME - A focus detection sensor includes a line sensor comprised of a pair of sensor arrays in which a plurality of pixels are arranged. The sensor arrays include a pixel of a first type having an arrangement for transferring charges generated by a photoelectric conversion device to a corresponding memory device and causing the memory device to integrate the charges during a charge accumulation period, and a pixel of a second type having an arrangement for integrating, in the pixel, the charges generated by the photoelectric conversion device during the charge accumulation period without transferring the charges to the memory device until the end of the charge accumulation period, and transferring the charges to the corresponding memory device when the charge accumulation period has ended. An accurate charge accumulation result can be obtained by a simple arrangement. | 02-14-2013 |
20130335614 | FOCUS ADJUSTMENT APPARATUS AND CONTROL METHOD THEREFOR - A focus adjustment apparatus that displays an in-focus state in a display region in association with control of a focus lens position. The apparatus includes a signal generation unit configured to output a pair of image signals from a focus detection region having a plurality of corresponding display regions, the image signals being generated by photoelectrically converting light having passed through an imaging optical system, and a control unit configured to detect a phase difference of the pair of image signals output from the focus detection region, and to control a position of the focus lens based on the phase difference detection result. The control unit detects the phase difference corresponding to divided regions formed by dividing the focus detection region, and displays an in-focus state in the display region in accordance with the control of the focus lens position control based on the phase difference detection result. | 12-19-2013 |
20140063328 | FOCUS DETECTION APPARATUS, IMAGING APPARATUS, AND CONTROL METHOD OF FOCUS DETECTION APPARATUS - A focus detection apparatus comprises a pair of line sensors that generate a pair of image signals by photo-electrically converting an object image, calculation unit configured to calculate a defocus amount using the image signals, and control unit configured to control the line sensors to execute a charge accumulation operation until output levels of the line sensors reach a first voltage level based on a saturated voltage, wherein the control unit switches the saturated voltage based on luminance information. | 03-06-2014 |