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| Number | Title | Issue Date |
| 7412159 | Image pickup apparatus and defocus amount correction value calculation method An image pickup apparatus, in which a light is projected toward a physical object by projection means, and based on the reflected light by the physical object of the light, a defocus amount is detected (steps S2003 to S2008) by the first focus detectio... | 08/12/2008 |
| 7321725 | Light-amount control device for photographing A light-amount control device includes a plurality of lighting units each of which emits light for illuminating a photographing area of a photographing optical system. Further, the light-amount control device includes a peripheral light amount data calculator and a ... | 01/22/2008 |
| 7142241 | Image pickup device An image pickup device has an image sensor having rectangular light receiving portions arranged in a matrix, and microlenses disposed in correspondence with said light receiving portions, said light receiving portions and said microlenses being formed integrally wit... | 11/28/2006 |
| 7119319 | Solid-state image sensing element and its design support method, and image sensing device A solid-state image sensing element has a photoelectric conversion element which converts incoming light into an electrical signal in accordance with an amount of the light, a microlens which is arranged on an incident surface, a light guide which is arranged betwee... | 10/10/2006 |
| 7054499 | Correction data generation method and imaging apparatus A correction data generation method generates correction data used to correct the focal plane position of a lens in consideration of symmetry of PSF (point spread function) in an optical system. The binarization step binarizes the intensity of the PSF using a predet... | 05/30/2006 |
| 7042491 | Image signal output method, image signal output device, rangefinder, and imaging device An image signal output device for use in a passive range finder. The device can correct the sensitivities of sensor arrays according to the amount of incident light. The output device has line sensor portions that produce pixel outputs. An A/D converter portion A/D ... | 05/09/2006 |
| 7002632 | Image pickup apparatus with precise exposure value, exposure decision method, program, and storage medium The object of this invention is to increase the precision of an exposure value in a scan AE scheme. To achieve this object, an image is picked at a plurality of exposure values. Screen-split brightness values and exposure value differences are obtained for the respe... | 02/21/2006 |
| 6963376 | Distance measuring device and a camera provided with the distance measuring device In the distance measuring device, even if there are unmeasurable distance measuring regions, suitable estimate is set as the distance data of the unmeasurable region in accordance with distance data of the measurable distance measuring regions and the space on the o... | 11/08/2005 |
| 6957016 | Camera apparatus and method including blur detection feature Camera having a sensor for outputting subject image data to perform distance measuring or focusing of the camera, wherein in the event that a comparison is made between subject image data output from the sensor at predetermined intervals, and detection of blurring i... | 10/18/2005 |
| 6735384 | Image taking apparatus having a distance measuring device A distance measuring device provided in a camera has: a pair of integration-type image sensor arrays; a plurality of brightness monitors being placed close to one of the image sensor arrays, each independently for measuring the brightness of the subject in a predete... | 05/11/2004 |
| 6694097 | Distance measuring device, focus detector, and camera including plural sensors and controller for selectively providing power to sensors and respective processing circuits A distance measuring device, or a focus detector, including a plurality of sensors provided in association with a plurality of different areas, and a respective plurality of processing circuits provided in association with the plurality of sensors, to pro... | 02/17/2004 |
| 6522839 | Distance measuring device and camera having the same A distance measuring sensor applied to the present distance measuring device has three pairs of line sensors and a control circuit arranged in the center thereof. In three pairs of line sensors, the central line sensors have a train of photodetector units... | 02/18/2003 |
| 6470148 | Distance measuring device This invention is an inexpensive distance measuring device having short lag time, configured so as to have a pair of light receiving regions at positions of focal points of a pair of image forming optical systems, comprising functions for dividing the lig... | 10/22/2002 |
| 6430370 | Distance-measuring apparatus and method for camera A distance-measuring apparatus for a camera comprises an area sensor, an integration circuit, and a switching circuit. The above-mentioned area sensor receives light of a picture image in the image plane. The integration circuit integrates output signals ... | 08/06/2002 |
| 6381413 | Distance measuring device An active-type multipoint automatic focusing apparatus is arranged to vary the number of distance measuring points according to focal length, and to vary, according to the number of distance measuring points varied, the number of times of light projection... | 04/30/2002 |
| 6308015 | Camera having automatic focusing device There is provided a camera with an automatic focusing device having hybrid AF unit capable of always performing a reliable automatic focusing operation on a moving object to provide a more preferable photographic result. The camera includes first distance... | 10/23/2001 |
| 6122450 | Distance measuring apparatus There is provided a distance measuring apparatus in a lens-shutter type camera provided with a photographic lens, a focal length of the photographic lens being variable. The distance measuring device includes: a pair of image forming lenses each forming a... | 09/19/2000 |
| 6112029 | Camera, exchangeable lens, and camera system A camera which uses exchangeable photographing lenses, and is capable of focus detection using a plurality of focus areas, includes a memory for storing information pertaining to the number of focus areas that can be used in focus detection in units of mo... | 08/29/2000 |
| 6088536 | Distance measuring apparatus There is provided a distance measuring apparatus in a lens-shutter type camera provided with a photographic lens, a focal length of the photographic lens being variable. The distance measuring device includes: a pair of image forming lenses each forming a... | 07/11/2000 |
| 6038405 | Automatic focus detection device A distance measurement device has a taking lens, a viewfinder, distance measurement elements for performing distance measurement in a plurality of areas on an object, a memory for storing the positional relationship between the field of view of the viewfi... | 03/14/2000 |
| 5973846 | Offset spectra lens system for a two spectra automatic focusing system An improved auto-focus system for a digital camera has a lens designed to have the focus of two spectra offset from each other by a predetermined amount. The two offset spectra are used to calculate two focus signals. Once the two focus signals are calcul... | 10/26/1999 |
| 5923910 | Distance measuring apparatus A distance measuring apparatus in a lens-shutter type camera is provided with a photographic lens having variable focal length. The device includes a pair of image forming lenses each forming a subject image, a pair of line sensors on which the subject im... | 07/13/1999 |
| 5721977 | Distance measuring apparatus of camera improved in measuring process A distance measuring apparatus includes a pair of line sensors. An image of an object is projected on the line sensor through a lens. The distance up to an object is measured according to the object image in the line sensor. The line sensor includes a plu... | 02/24/1998 |
| 5713053 | TTL exposure control apparatus in an interchangeable lens camera A TTL exposure control apparatus having a camera body to which different interchangeable lenses can be detachably attached is disclosed. At least one of the interchangeable lenses is an interchangeable wide-angle lens having a distortion. The wide-angle l... | 01/27/1998 |
| 5692222 | Camera having focus detection device A focus adjusting apparatus which includes a focus detection device for independently detecting focus states of N different regions in a scene. The apparatus includes a selection circuit and a focus adjustment circuit. The selection circuit simultaneously... | 11/25/1997 |
| 5422701 | Focus detection apparatus A focus detection apparatus for, e.g., a camera, can perform focus detection of even a position separated from an optical axis of an exchangeable photographing lens in a direction perpendicular to the optical axis regardless of an exit pupil position of t... | 06/06/1995 |
| 5278602 | Distance measuring device In a camera provided with a finder and a photographic lens, the focal length of the photographic lens being variable, there is provided a distance measuring device having a pair of optical elements at the front side of the camera. The optical axes of the ... | 01/11/1994 |
| 5227833 | Apparatus having an automatic focus detecting device An apparatus has an automatic focus detection device. The automatic focus detection device detects a focus condition of a taking lens by using a plurality of detection areas. These detection areas are displayed on a finder. The plurality of detection area... | 07/13/1993 |
| 5214464 | Camera system According to this invention, a camera system has a camera body and a first and second lenses exchangeable to the camera body. The first lens comprises a device for outputting first data which indicates the first lens belongs to a first lens type. The seco... | 05/25/1993 |
| 5084722 | Focus condition detecting device A focus condition detecting device which eliminates a wasteful operation thereof to obtain optical results of detection in a shortest period of time and wherein it can be discriminated correctly depending upon data read from a lens regarding an exit pupil... | 01/28/1992 |
| 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 |
| 5003336 | Camera system According to this invention, a camera system has a camera body and a first and second lenses exchangeable to the camera body. The first lens comprises a device for outputting first data which indicates the first lens belongs to a first lens type. The seco... | 03/26/1991 |
| 4903065 | Focus condition detecting device A focus condition detecting device which eliminates a wasteful operation thereof to obtain optical results of detection in a shortest period of time and wherein it can be discriminated correctly depending upon data read from a lens regarding an exit pupil... | 02/20/1990 |
| 4826301 | Photographic system having soft focus function A photographic objective having a soft focus function comprising, from front to rear, a first lens component of positive power, a second lens component having a meniscus-shaped lens of forward convexity, an aperture stop, and a third lens component, the s... | 05/02/1989 |
| 4798437 | Method and apparatus for processing analog optical wave signals Discrete segments of an analog optical wave signal are collected in individual waveguides of a waveguide array. In the waveguide array, the optical signal is processed to provide an analysis of the signal or to control the signal. The signal can be analyz... | 01/17/1989 |
| 4743932 | Focus detection device for a camera A focus detection system for a camera, especially for a single lens reflex camera, is disclosed. The focus detection system comprises a light projection means for illuminating an object at the active AF and means for switching positions and/or sizes of ir... | 05/10/1988 |
| 4676623 | Solid-state imaging device A solid-state imaging device including a plurality of line sensors has means for adding image signals from the line sensors arranged on the solid-state image device.... | 06/30/1987 |
| 4475800 | Focus detecting system A focus detecting system for detecting a focusing state is adaptable to various optical systems of different specifications. The focus detecting mode of the system changes according to the specifications of the associated optical system and the focus dete... | 10/09/1984 |
| 4373791 | Focusing position detection apparatus In a pupil divisional type focusing position detection apparatus of the type capable of detecting the infocus state of a taking lens based on a phase difference of output signals produced from at least one photosensor array for receiving rays of image for... | 02/15/1983 |
| 4346970 | Focus detecting device Disclosed is a TTL (Through-The-Lens) type focus detecting device for use in an interchangeable lens-equipped camera, in which a plurality of lenslets are positioned at or near the prescribed focal plane of the objective lens, each of the lenslets is asso... | 08/31/1982 |
