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Document Title |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |