Patent application number | Description | Published |
20090195888 | Image Forming Optical System and Electronic Image Pickup Apparatus Using Image Forming Optical System - An image forming optical system according to the present invention is characterized in that, in an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the positive lens group is disposed at an object side of the aperture stop,
| 08-06-2009 |
20090279183 | Image Forming Optical System and Electronic Image Pickup Apparatus Using Image Forming Optical System - An image forming optical system according to the present invention is characterized in that, in an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the positive lens group is disposed at an image-plane side of the aperture stop,
| 11-12-2009 |
20090279184 | Image Forming Optical System and Electronic Image Pickup Apparatus Using Image Forming Optical System - In an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the negative lens group is disposed at an image side of the of the aperture stop,
| 11-12-2009 |
20090279185 | Image Forming Optical System and Electronic Image Pickup Apparatus Using Image Forming Optical System - An image forming optical system according to the present invention is characterized in that, in an image forming optical system having a positive lens group, a negative lens group, and an aperture stop, the negative lens group is disposed at an object side of the aperture stop,
| 11-12-2009 |
20100149404 | Image forming optical system and electronic image pickup apparatus equipped with same - An image forming optical system characterized by comprising a positive first lens group, a negative second lens group, and third and subsequent lens groups having a positive composite refracting power, wherein the first lens group is composed of a cemented lens made up of one positive lens and one negative lens arranged in order from the object side, and the image forming optical system satisfies the following conditional expressions (1-1) and (2-1): | 06-17-2010 |
20100208321 | Image forming optical system and electronic image pickup apparatus using the same - An image forming optical system of the present invention includes at least one cemented lens which includes a first lens element (e | 08-19-2010 |
20110228147 | Image pickup apparatus and camera - At least some of the pixels on which color filters that give the largest weight to a brightness signal or color filters that have the highest transmittance among the plurality of color filters are provided are pixels for focus detection that are designed in such a way that the direction of incidence of light beams incident thereon is restricted, the pixels other than the pixels for focus detection are pixels for image picking-up that are designed in such a way that the degree of restriction placed on light beams incident thereon is smaller than that placed on light beams incident on the pixels for focus detection, the pixels for focus detection output at least a signal for ranging, the pixels for image picking-up output at least a signal for an image, and there are at least three pixels for focus detection in an area defined between a circle having its center at the center of any one of the pixels for focus detection and having a radius equal to 3.1 times the pixel pitch and a circle having its center at the center of the aforementioned any one of the pixels for focus detection and having a radius equal to 5.9 times the pixel pitch. | 09-22-2011 |
20120026372 | Image pickup apparatus - An image pickup apparatus in which, a taking lens is installable or fixed, includes
| 02-02-2012 |
20120099006 | IMAGE PICKUP APPARATUS - An image pickup apparatus,includes a computing section which computes a defocus amount which has been estimated,a calculating section which calculates an accuracy of defocus detection, a setting section which sets a correction value from a result of the calculating section, a correcting section which corrects the correction value obtained from the result of the setting section, to reduce an absolute value of the defocus amount which has been estimated, a lens-drive amount calculating section which calculates a lens-drive amount based on a result from the correcting section, and a control section which, at the time of video photography, carries out focusing successively by using the defocus amount and the lens drive amount obtained from the computing section, the calculating section, the setting section, and the correcting section. | 04-26-2012 |
20130016274 | IMAGE PICKUP APPARATUS AND IMAGE PICKUP DEVICEAANM Matsuo; KeigoAACI TokyoAACO JPAAGP Matsuo; Keigo Tokyo JPAANM Goto; HisashiAACI TokyoAACO JPAAGP Goto; Hisashi Tokyo JPAANM Ichikawa; YoshikazuAACI TokyoAACO JPAAGP Ichikawa; Yoshikazu Tokyo JPAANM Okubo; RyuhiAACI Asaka-shiAACO JPAAGP Okubo; Ryuhi Asaka-shi JPAANM Takase; HiroshiAACI TokyoAACO JPAAGP Takase; Hiroshi Tokyo JPAANM Takahashi; ToshioAACI TokyoAACO JPAAGP Takahashi; Toshio Tokyo JPAANM Murakami; DaichiAACI TokyoAACO JPAAGP Murakami; Daichi Tokyo JP - An image pickup apparatus includes: an image pickup device that includes a pixel used for focus detection, a plurality of the pixels being arranged in a matrix; a correction memory that stores correction information used for correcting a difference in amounts of received light that depend on pixel positions of the pixels used for focus detection; a correcting section that reads the correction information to correct a pixel value of the pixel used for focus detection; and a focus detecting section that detects a focal point by using the pixel value corrected by the correcting section. Focus accuracy is increased by correcting the pixel value for an AF pixel depending on the pixel position. | 01-17-2013 |