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Match Document Document Title
9025946 Camera system and focus detecting method  
A camera system according to the present invention, comprising: an interchangeable lens comprising: a zoom position detecting section configured to detect a zoom position corresponding to a focal...
8989568 Interchangeable lens, camera, and camera system  
An interchangeable lens detachable from a camera includes a variator lens configured to change a focal length by moving in an optical axis direction, a focus lens configured to change a focusing...
8891951 Lens barrel and camera system capable of correcting tracking data and camera system  
A lens barrel includes a moving lens unit that moves in accordance with a zooming operation, a focus lens that moves to correct an image plane variation caused by a movement of the moving lens...
8781313 Lens apparatus and image pickup system  
A lens apparatus detachable from an image pickup apparatus includes a focus lens, a driver configured to drive the focus lens, a first position detector configured to detect a position of the...
8761592 Interchangeable lens, camera, and camera system  
An interchangeable lens detachable from a camera includes a variator lens configured to change a focal length by moving in an optical axis direction, a focus lens configured to change a focusing...
8680451 Light receiving device, focus detection device and imaging device  
A light receiving device that receives light having passed through an image forming optical system and outputs a light reception signal includes: a light receiving element array formed by arraying...
8605204 Image-pickup apparatus and method for adjusting tracking curves  
The method includes a first adjusting step of adjusting a first tracking curve which has been set so as to keep an in-focus state between a position of a magnification-varying lens and a position...
8582964 Imaging device and control method thereof  
An imaging device moves a zoom lens, so as to change the magnification of an image of a subject, and obtains a near limit position of a focusing lens to the subject at a zoom lens position. When a...
8229292 Auto focus adjusting apparatus and camera system  
An auto focus (AF) adjusting apparatus and a camera system of a lens replaceable camera are disclosed. AF is performed by correcting a location error of a focus lens due to a difference between a...
8126322 Interchangeable lens, camera body, and camera system  
An interchangeable lens has a zoom lens, a zoom driver operable to drive the zoom lens along an optical axis, a focus lens, a focus driver operable to drive the focus lens along the optical axis,...
8027581 Imaging apparatus, imaging apparatus control method, and computer program  
An imaging apparatus includes: a control unit configured to detect a focus position by moving a focusing lens before and after a preset position which is a focusing lens position set by a focus...
8026973 Imaging apparatus, imaging method and storage medium  
An imaging apparatus comprises a focusing unit configured to focus an object to be shot by an imaging unit, a first shooting control unit configured to control the imaging unit in order to...
7995131 Auto-focusing imaging device and auto-focusing image capture method thereof  
An imaging device includes a capturing module with at least one lens for capturing an image from a scene, a driving module for driving the at least one lens to different focusing positions using...
7925148 Apparatus and method for compensating position of camera lens according to temperature variation  
This document relates to an apparatus and method for controlling a camera according to temperature. The apparatus according to an embodiment of this document may comprise a camera comprising...
7880802 Imaging device and focus adjustment method  
In response to the user's short press of one preset button, a video camera according to one aspect of the invention reads out preset values stored in an EEPROM and adjusts the pan position, the...
7710491 Optical equipment and its control method, and computer-readable storage medium  
The object of this invention is to attain accurate control by correcting any deviation of a cam locus due to manufacturing errors and the like upon controlling a zoom lens and focus lens along a...
7643082 Imaging apparatus having an autofocus function  
A scan representation position table to which three points of focus positions which become scan representation positions are recorded respectively is stored in advance based on the lens position...
7526191 Zoom tracking method for digital camera  
A zoom tracking method for digital camera is disclosed. The method comprises storing a position table comprising data of several zoom position curves respect to positions of a focus lens and move...
7474844 Camera equipment with movable lenses and method of controlling lens driving operation  
In a camera, a zoom lens and focus lens are driven to predetermined positions corresponding to a zoom magnification factor to be changed upon a demand for altering the zoom magnification factor....
7437065 Imaging apparatus  
At least one exemplary embodiment is directed to an imaging apparatus which includes a rear-focus-type lens system configured to perform autofocusing on the basis of a video signal received from...
7119968 AF control apparatus  
An AF control apparatus includes a plurality of movable lens groups, each of which is movable along an optical axis for performing focusing independently, and a driving system for moving each of...
6993256 Zoom and focus control method and system  
A focus lens and a zoom lens group having a first zoom lens and a second zoom lens are controlled separately from one another in an internal-focus camera. The positions of the focus lens and the...
6972797 Automatic focusing device and the electronic image pickup apparatus using the same  
An auto-focusing device and an electronic image pickup apparatus facilitates realizing a high focusing accuracy and a quick focusing operation simultaneously using an inexpensive plastic lens...
6853501 Focusing method selectable zoom optical system  
A zoom optical system capable of selecting different focusing methods is disclosed. This zoom optical system includes a variable power unit that performs a variable power operation while moving...
6574437 Focus detection apparatus  
A focus detection apparatus includes a pupil dividing device for dividing an exit pupil of an objective lens into separate areas, a field mask located at a position substantially optically...
6144805 Optical apparatus for correcting focus detection caused by environmental variation  
An optical apparatus includes first and second lenses, first and second detection devices, and a control device. The first lens varies magnification, and the second lens, positioned on a...
6088537 Focus detecting device  
A focus detecting device of the kind using an area sensor which has a plurality of focus detecting areas necessitates setting a correction value for every one of the focus detecting areas and...
5973855 Zoom lens adjustment method  
A zoom lens adjustment method capable of being applied to zoom lenses for use in video cameras, electronic still cameras, or the like employing solid-state image sensors. An amount of integral...
5943513 Zooming method and apparatus for a camera  
Zooming systems consistent with the present invention are used with a camera having a zoom lens barrel which moves in at least two zoom directions. The zooming system comprises a switch for...
5896174 Control system for inhibiting a calculating system in an automatic focusing device  
An automatic focusing device has a rangefinder CCD sensor unit that measures a defocus amount with respect to the image of an object which is focused by an optical system. A focusing lens group of...
5845044 Recording apparatus comprising a camera and a cassette which includes a separate memory for storing camera parameters  
Disclosed herein is an image recording apparatus for recording an image signal outputted from an image sensing device on a recording medium held in a cassette. The image recording apparatus...
5815746 Parallax correction apparatus  
An apparatus, such as a camera, comprises a computing device which computes a parallax correction signal for correcting a parallax of a viewfinder on the basis of a focusing distance and a focal...
5815203 Zoom tracking apparatus and method in a video camera  
A zoom tracking apparatus and method in a video camera. An offset adjustment is achieved by deriving applied voltage of the zoom position sensor only by use of data relating to positions of the...
5802405 Camera apparatus that can have the time for moving rear lens group reduced when powered  
The position of a rear lens group at the time power is turned off is stored in a memory as a relative value on the basis of the positions of the rear lens group focusing on a subject at a near...
5781808 Zoom-lens drive control apparatus  
Data output means for outputting the moving position data of respective movable lens groups in a zoom lens according to designated magnification data and object distance data is provided, thereby...
5765051 Focus detection device and method  
A focus detection device and method permits the shooting lens to follow the movement of the photographic object without a focussing delay due to the calculation time and the movement of the...
5717961 Automatic focus adjustment device capable of accurately driving a photographic lens to an end point of movement  
An automatic focus adjustment device which accurately performs end point detection of the range of movement of a photographic lens to smoothly drive the photographic lens completely to a focus...
5687403 Focal point position correction apparatus  
A focal point position correction apparatus for a camera with a zoom lens system, has an adjustment amount calculation device for calculating an adjustment amount δh of at least one lens unit Gh...
5652923 Lens driving device  
The present invention provides a lens driving device, such as an automatic focusing device, which is arranged to detect a difference (the amount of overrun) between a given target amount of...
5497209 Automatic focusing device and automatic focusing method  
To improve focusing precision and responsiveness in an automatic focusing device, an accurate lens driving amount is found in a short time from a detected defocus amount. A conversion coefficient...
5400110 Camera having powered zoom lens  
A camera having a powered zoom lens, including a memory for storing object distances of more than one object to be photographed simultaneously, detected by an object distance measuring device, and...
5325146 Auto focus control system for a rear-focus lens apparatus  
A differential value of a characteristic curve of a focus distance of a zooming lens versus a position of a focus lens is calculated or found from a table in a contrast or phase difference type...
5325145 Camera system  
A camera having a focus detecting circuit for determining the state of focusing of an image of the object on an imaging plane and outputting information for moving an optical system, a memory for...
5323200 Optical apparatus having lens control device  
An optical apparatus is arranged in a compact size and yet to be capable of adequately performing lens control whereby, in the optical system of the apparatus which is of the kind having a...
5319415 Interchangeable lens and camera system incorporating the same lens  
A focal detector built-in interchangeable lens is disclosed. During photographing, a release signal is transmitted via a transmitting means to a control part provided in the interchangeable lens...
5317351 Position detecting device  
A position detecting device comprises a movable member, a first electrode movable with the movement of the movable member, and a second electrode disposed at a location opposed to the first...
5315340 Video camera apparatus  
A lens control apparatus, which includes a lens drive section for driving a focus adjustment lens group, a lens drive controller for supplying a drive signal to the lens drive section, an...
5302991 Varifocal camera  
The invention provides a camera having a varifocal lens system including first, second, third and fourth lens groups positioned in that order along an optical axis from a subject side. The first...
5249010 Apparatus for controlling a zooming optical device  
An optical apparatus comprises a first lens for effecting magnification change, a second lens provided more adjacent to the focal plane than the first lens for effecting focusing and correction...
5249012 Auto-focusing system for cameras with in interchangeable objective lens  
An auto-focusing system includes a focus condition detector which detects focus condition based on the infrared light. A data producer is provided for producing a deflection signal indicating a...

Matches 1 - 50 out of 66 1 2 >