Patent application number | Description | Published |
20090290224 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a first lens group including a positive lens or a negative lens, a second lens group including a cemented lens in which at least one negative lens and at least one positive lens are cemented together, and a third lens group including a positive lens. Of lenses forming the first, second, and third lens groups, at least one lens surface is an aspheric surface. | 11-26-2009 |
20090290225 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a cemented lens and a positive lens component, and satisfies the following condition (1). | 11-26-2009 |
20090290226 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a first lens and a filter. | 11-26-2009 |
20090290863 | Viewfinder and imaging apparatus using the same - The present invention provides a viewfinder, characterized by comprising a reflection type display device on which an object image is displayed, an eyepiece optical system having a front group and a rear group, an illumination optical system for illuminating the reflection type display device and an optical device for putting an optical path taken by the illumination optical system over an optical path from said reflection type display device to the eyepiece optical system at a position of the widest of lens-to-lens spaces in the eyepiece optical system. The eyepiece optical system is located between the reflection type display device and an eye point, and satisfies the following condition (1): | 11-26-2009 |
20090290864 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a cemented lens in which at least one negative lens and at least one positive lens are cemented together and one positive lens, and satisfies the following condition (1). | 11-26-2009 |
20100149389 | Image pickup device - An image pickup device includes an image pickup element that receives light of an object image formed by a picture-taking lens; and a focus detection filter section that is so disposed near the image pickup element and on the side of the picture-taking lens as to be able to be inserted or withdrawn. The focus detection filter section, from the side of the picture-taking lens, includes a field diaphragm that includes a plurality of openings; a condenser lens disposed near a focus detection area on the surface of the field diaphragm; a pupil division diaphragm that corresponds to the opening of the field diaphragm and includes a pair of openings arranged at such an interval as to secure focusing accuracy; and a re-imaging lens group that includes a plurality of re-imaging lenses that are so arranged as to correspond to the openings of each of the pupil division diaphragms. When the focus detection filter section is inserted into an picture-taking optical path, the light intensity distribution of two light beams that each pass through different areas of the picture-taking lens and the openings of the field diaphragm is received by the image pickup element. The detecting of focus is performed by detecting a phase difference of an output signal representing the light intensity distribution obtained from the image pickup element. When a picture is taken, the focus detection filter section withdraws from the optical path. | 06-17-2010 |
20100283886 | OPTICAL UNIT, IMAGING UNIT, IMAGING BODY, AND IMAGING DEVICE HAVING THE IMAGING BODY - An optical unit ( | 11-11-2010 |
20100284684 | IMAGING BODY AND IMAGING DEVICE HAVING THE SAME - An imaging body ( | 11-11-2010 |
20100309363 | IMAGING BODY AND IMAGING DEVICE HAVING THE SAME - An imaging body ( | 12-09-2010 |
20110298963 | Image pickup apparatus - An image pickup apparatus includes: an optical imaging system; an image pickup device; a defocus quantity calculation circuit for calculating a defocus quantity based on a phase difference between a plurality of signals for focus detection obtained from a plurality of pixels for focus detection that respectively receive a light flux that has passed through a different pupil region of the optical imaging system; a focusing section for driving the optical imaging system so as to achieve an in-focus state in accordance with the calculated defocus quantity; and a thinning-out circuit for thinning out a plurality of signals for focus detection that are not used for calculating the defocus quantity, based on an analysis result of a signal component of an object image. | 12-08-2011 |
20110310266 | Image pickup apparatus - The image pickup apparatus of the present invention includes: an optical imaging system for forming an object image; an image pickup device including a plurality of pixels that photoelectrically converts the object image; a defocus quantity calculation section for calculating a defocus quantity based on a phase difference between a plurality of signals for focus detection obtained from a plurality of pixels for focus detection that respectively receive a light flux that passes through a different pupil region of the optical imaging system; a focusing section for driving the optical imaging system so as to achieve an in-focus state, in accordance with the defocus quantity calculated at the defocus quantity calculation section; an addition practicability determination section for determining a practicability of performing inter-frame addition on a plurality of signals for focus detection before calculating the defocus quantity, based on an analysis result of a signal component of the object image; and an inter-frame addition processing section for performing inter-frame addition based on a determination result of the addition practicability determination section. | 12-22-2011 |
20110310291 | Image pickup apparatus - An image pickup apparatus of the invention includes: an optical imaging system; an image pickup device; a defocus quantity calculation section for calculating a defocus quantity based on a phase difference between signals for focus detection obtained from pixels for focus detection; a high-frequency component quantity detection section for detecting a quantity of high-frequency component contained in a pixel signal outputted from a pixel other than the pixels for focus detection; a region determination section for determining in accordance with which of the defocus quantity and the high-frequency component quantity the optical imaging system is to be driven, according to a detection result of detecting in which of a plurality of divided blocks of the image pickup device an object of interest is present; and a focusing section for driving the optical imaging system in accordance with a determination result of the region determination section. | 12-22-2011 |
20120147151 | IMAGE PICKUP APPARATUS - An apparatus has a synchronizing signal generator to which a trigger signal is input and that outputs a first synchronizing signal and a second synchronizing signal based on the trigger signal, an image pickup unit that has an image pickup surface, performs a first image picking-up based on the first synchronizing signal, and performs a second image picking-up based on the second synchronizing signal, and an image pickup element tilting unit that changes the angle of the image pickup surface relative to the optical axis during a period after the first image picking-up and before the second image picking-up. | 06-14-2012 |
20120162453 | IMAGE PICKUP APPARATUS - An apparatus comprises a taking lens unit, a stop provided between a plurality of optical elements in the taking lens unit, a synchronizing signal generator to which a trigger signal input and that outputs at least a first synchronizing signal and a second synchronizing signal based on the trigger signal, an image pickup unit that performs a first image picking-up based on the first synchronizing signal and performs a second image picking-up based on the second synchronizing signal, and a lens shifting unit that shifts a specific optical element, which is at least one of the optical elements located between the stop and the image pickup unit, in such a way that the center axis of the specific optical element is shifted in a direction perpendicular to the optical axis of the stop during a period after the first image picking-up and before the second image picking-up. | 06-28-2012 |
20120224031 | IMAGE PICKUP APPARATUS - A first calculating section calculates an amount of camera-shake correction based on an amount of shaking of the image pickup apparatus which has been detected, when each of a first capturing and a second capturing is carried out. A second calculating section calculates at least an amount of optical tilt-displacement between the image pickup element and an object for the first capturing, which is necessary for the second capturing, and the second calculating section calculates one of an amount of shift by which some of the image pickup lenses and the interchangeable image pickup lenses are to be shifted in a predetermined direction, and an amount of change by which an angle of an image pickup surface of the image pickup element with respect to the optical axial direction is to be changed, while the first capturing and the second capturing are being carried out. | 09-06-2012 |
20120249805 | Image capturing system and image capturing method - A front-rear blur amount of a camera, which occurs when a release button is pressed in order to perform image pickup, is detected, and image data obtained by an imaging device on which an image of an object is formed are subjected to image processing on the basis of the front-rear blur amount. As a result, an image on which the effects of front-rear blur are reduced is obtained. | 10-04-2012 |
20120249818 | Image capturing system and image capturing method - When a photographer presses a release button by a predetermined amount after focusing on a first object, a focus lens is moved in an optical axis direction so that a second object is brought into focus, whereupon image pickup is performed while focusing on the second object. Image processing is then performed on image data obtained in the image pickup. | 10-04-2012 |
20120314038 | STEREOSCOPIC IMAGE OBTAINING APPARATUS - A stereoscopic image obtaining apparatus has an optical system through which at least two parallax images are obtained, a first image creating unit that creates a first stereoscopic image from a single 2D image, a second image creating unit that creates a second stereoscopic image from the at least two parallax images; and a stereoscopic image selection unit that makes a selection between the first image creating unit and the second image creating unit. The stereoscopic image selection unit makes a selection in such a way that objects for which the first image generation unit is selected are more distant than objects for which the second image generation unit is selected. | 12-13-2012 |
20150085374 | VARIABLE POWER OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS HAVING THE SAME - Provided are a variable power optical system in which the value of the entire length with respect to the image height is reduced and the aberration is well corrected, and an image pickup device comprising the same. Specifically provided is a variable power optical system comprising, in order from the object side, at least a first lens group having negative refractive power, a variable power group having positive refractive power, and a final lens group having positive refractive power, wherein the variable power group is provided with, in order from the object side, a first lens element having positive refractive power, a second lens element, and a third lens element, the second lens element has a convex shape on the object side, and the final lens group comprises a positive lens, the variable power optical system satisfying the following conditional expression: | 03-26-2015 |