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| Number | Title | Issue Date |
| 7889985 | Imaging apparatus An imaging apparatus for forming an optical image of a subject on a light-receiving surface of an imaging element via a photographing lens; the imaging apparatus comprising: a first focusing position detection device which extracts... | 02/15/2011 |
| 7769286 | Method and apparatus of determining the best focus position of a lens A method and apparatus for accurately auto focusing a lens of an imaging device. An imaged scene is split into an array of zones. The minimum and maximum sharpness score for each zone is determined over a plurality of lens positions. A histogram of the lens position... | 08/03/2010 |
| 7725019 | Apparatus and method for deciding in-focus position of imaging lens A subject is imaged while an imaging lens is moved along the optic axis in incremental distances, and a graph of focus evaluations representing degree of focus of the subject image is obtained. Processing for detecting a face is executed at positions of the imaging ... | 05/25/2010 |
| 7432975 | Automatic focusing method and digital photographing apparatus using the same Provided are an automatic focusing method in which a photograph region is brought into focus through automatic movement of a focal lens to a focal position, in response to a photographing-command signal, and a digital photographing apparatus using the method. The me... | 10/07/2008 |
| 7358999 | Focus sensing apparatus, focus sensing method using phase-differential detection and computer-readable storage medium therefor An apparatus comprising: an image sensing device having a plurality of pixels for receiving light from an object upon separating the light into respective ones of different color components; an optical guidance device for accepting light rays in different directions... | 04/15/2008 |
| 7283171 | Image pickup apparatus with external device An image pickup apparatus including an image pickup device configured to convert a monitored object image into an electrical image signal and to output the image signal, a clock generator configured to generate a constant cyclic drive frequency to drive the image pi... | 10/16/2007 |
| 7163298 | Lens device and projector having diaphragm mechanisms with substantially trapezoidal apertures The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 01/16/2007 |
| 7164447 | Solid state image pickup device A solid state image pickup device is provided which can reduce crosstalks between range finding photoelectric conversion elements (AF sensor) and photometry photoelectric conversion elements (AE sensor). The solid state image pickup device has an n-type epitaxial se... | 01/16/2007 |
| 7114814 | Projector having an illuminance detector The invention provides a projector having a light source, a display device to modulate light emitted from the light source, a lens device to project light emitted from the light source via the display device, wherein the lens device has a diaphragm mechanism formed ... | 10/03/2006 |
| 7114815 | Lens device and projector having diaphragm mechanisms with apertures having inwardly curved sides The invention provides A lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 10/03/2006 |
| 7111947 | Lens device and projector having diaphragm mechanisms with substantially square apertures The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 09/26/2006 |
| 7111946 | Lens device and projector having diaphragm mechanisms with substantially triangular apertures The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens de... | 09/26/2006 |
| 7071985 | Optical device and method for selecting object of focus A camera capable of automatically detecting a main object in a sensed image. A distance distribution generation unit discriminates a plurality of areas in the sensed image on the basis of a predetermined condition, and a main object area determination unit automatic... | 07/04/2006 |
| 6973265 | Solid state image pick-up device and image pick-up apparatus using such device In order to realize a photometry/ranging solid state image pick-up device having high performance AE and multi-point functions by a single chip, a plurality of ranging photoelectric conversion element columns 1A to 7A and 1B to 7B for mul... | 12/06/2005 |
| 6836618 | Distance measuring device In a distance-measuring device that measures individual distances to plural distance-measured regions, a selection circuit selects at least one first measured distance value by excluding second measured distance values that are not smaller than a predetermined dista... | 12/28/2004 |
| 6788889 | Distance measuring apparatus In multi-point distance measurement, the distance of a distance measurement object is three-way divided into a very short distance range, a short distance range and a moderate to long distance range, and if the distance of an object located at a very short distance ... | 09/07/2004 |
| 6625397 | Auxiliary light emitting device A focus detecting device having an auxiliary light mode, in which, when a focus is not appropriately first detected, a focus detecting operation for detecting the focus is executed with auxiliary light being projected. The focus detecting device includes ... | 09/23/2003 |
| 6441855 | Focusing device A focusing device includes a movable focusing lens adapted to be moved to different positions, a conversion element for converting light incident on and transmitted through the focusing lens into a signal, and a lens driving mechanism for moving the focus... | 08/27/2002 |
| 6192198 | Camera capable of print format selection A camera capable of print format selection includes a connecting unit for responding to at least one of a unit for forming information for focus adjustment on the basis of one of distance measurement information of a plurality of portions in a scene and d... | 02/20/2001 |
| 6115553 | Multipoint autofocus system A multipoint autofocus system is provided with a judging apparatus and controller. The multipoint autofocus system detects a focus state of objects at different positions in a plurality of focus detection zones of an image surface. Thereafter, information... | 09/05/2000 |
| 6091908 | Photometric device and method for a camera A photographic device eliminates photometric errors that occur in photometry, obtains a more accurate exposure, and shortens the time required for photometry. The device includes an orientation position detector and photographic mode setter, which outputs... | 07/18/2000 |
| 5913082 | Image signal processing apparatus An image signal processing apparatus for detecting a focusing state or a distance state by performing a correlation calculation of two images received by a light receiving section that includes a plurality of two dimensionally arranged photoelectric conve... | 06/15/1999 |
| 5797049 | Focus detection device for objective lens A focus detection function is disposed on the focal plane of an objective lens. The in-focus state of the objective lens is determined with respect to a plurality of range-finding regions in a photographic range by employing the focus detection function. ... | 08/18/1998 |
| 5659816 | Focus detection device and method A focus detection device includes a pair of photoelectric converting element arrays that output a pair of signal strings and a focus detection optical system, including a photo lens, that conducts a pair of light rays from a subject to the pair of photoel... | 08/19/1997 |
| 5640618 | Focus state detection device and method A defocus amount is accurately determined within the photo field. As applied to a focus state detection device, DC reduction filter process data is computed without completely extracting the DC component of the signal string output from an image sensor. T... | 06/17/1997 |
| 5450162 | Photo-taking apparatus capable of making a photograph with flash by a flash device A flash modulation control apparatus in a camera having a photo-taking lens and a flash device mounted thereon comprises a photographing mode setting device for setting a photographing mode in which optimal exposure is obtained in conformity with an objec... | 09/12/1995 |
| 5448330 | Divided radiation type flashlight system A divided radiation type flashlight system comprises a light emission port, a distance measuring instrument for measuring distances from multiple domains of a field, a calculator for calculating quantitites of weighting the amounts of radiation light orig... | 09/05/1995 |
| 5440369 | Compact camera with automatic focal length dependent exposure adjustments A compact camera has a variable focal length photographing optical system, a multisegment photometric system that is separate from the photographing optical system, each segment outputting a brightness level, and a controller that determines an exposure v... | 08/08/1995 |
| 5436690 | Camera system A camera with a sight line detecting apparatus is designed such that if watching point information storing means for watching point information is in a saturated state when new watching point information is found, watching point information low in reliabi... | 07/25/1995 |
| 5410383 | Focus detecting device A focus detecting device comprises an image forming optical system, a device for detecting the defocus amount with respect to a predetermined plane of a plurality of images, formed by the image forming optical system, of fields corresponding to a pluralit... | 04/25/1995 |
| 5313245 | Automatic focusing device An automatic focusing device in which a plurality of points in a picture frame are measured in distance to form focusing information. The device is provided with weighting means for laying an emphasis on a substantially central portion of the picture fram... | 05/17/1994 |
| 5313246 | Exposure control device in a camera An exposure control device in a camera comprises a focus detection device for calculating a plurality of defocus amounts corresponding to a plurality of focus detection areas, a weight producing device for producing a plurality of weights corresponding to... | 05/17/1994 |
| 5289225 | Photometering apparatus of camera for variably weighting different areas of an image area A photometering apparatus for a camera is provided that includes a split type photometering device for measuring the luminance of an object to be photographed and in which an image area is divided into a plurality of object luminance measuring zones, an a... | 02/22/1994 |
| 5249011 | Automatic focusing method An automatic focusing method is disclosed with which a plurality of selected objects can be held within the focusing range of the photographing lens of a camera. For each of object for which it is desired to keep within the focusing range, a focusing dete... | 09/28/1993 |
| 5187585 | Image sensing apparatus with settable focus detection area An automatic focusing device which is capable of movably setting a focus detecting area on an image sensing plane comprises a position detecting circuit which detects the position of a picture-taking object within the focus detecting area, a storage circu... | 02/16/1993 |
| 5140359 | Multi-point distance measuring apparatus An auto focusing device for foreseeing-calculating lens driving data for making a lens focus on an object after a predetermined time on the basis of the past focus adjusting operation data and the latest focus detection data. A plurality of distance measu... | 08/18/1992 |
| 5121151 | Focus adjustment information forming device Disclosed is a focus adjustment information forming device of the kind arranged to measure distances at a plurality of distance measuring areas on a picture plane specified by optical means which has its focal point being adjusted and to form information ... | 06/09/1992 |
| 5040014 | Camera system A camera system, having a plurality of light measuring regions respectively corresponding to focus detecting regions, which includes a device for calculating luminance of an object based on measured light values of the light measuring regions and a device... | 08/13/1991 |
| 5003339 | Image sensing apparatus having automatic focusing function for automatically matching focus in response to video signal In a video camera having an automatic focusing function, a first sampling area in the center of an image sensed picture and a second sampling area around the first sampling area are set. Considering a case in which an auto-focus operation is carried out s... | 03/26/1991 |
| 4943824 | Device for measuring object distance used for camera The present invention relates to a device for measuring object distance or an in-focus position used for a camera in which the object distance of focus adjusting condition are measured in a plurality of distance measuring areas in the photographing scene.... | 07/24/1990 |
