Lens Resetting Patents (Class 396/90)
  • Patent number: 9531945
    Abstract: An image capturing device includes a first image capturing module, a second image capturing module and a focusing and image processing module. The first image capturing module includes a plurality of first phase focusing detectors, and the field of view of the second image capturing module is smaller than the field of view of the first image capturing module. The plurality of the first phase focusing detectors are used for generating a plurality of first sets of optical sensing signals. When one of the plurality of the first sets of optical sensing signals are selected by the focusing and image processing module to provide a first focal signal according to the selected first set of optical sensing signal, the first image capturing module and the second image capturing module adjust respective focal distances according to the first focal signal.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: December 27, 2016
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORPORATION
    Inventors: Jau-Yu Chen, Hsing-Hung Chen
  • Patent number: 9042715
    Abstract: An interchangeable lens attachable to a camera body includes an image pickup optical system configured to form an optical image of an object, and a controller configured to start initializing an optical element included in the image pickup optical system so as to move the optical element to a predetermined position when the controller receives a first signal that commands a start of an initialization from the camera body, and configured to start initializing the optical element after the controller receives identification information from the camera body and a period elapses for which the camera body consumes more than a predetermined amount of power when the controller does not receive the first signal from the camera body.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 26, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akihiro Kawanami
  • Patent number: 8593568
    Abstract: A shape memory alloy actuation apparatus comprises a movable element supported on a support structure by a suspension system comprising a plurality of resilient flexures. A shape memory alloy actuator drives movement of the movable element on contraction. An end-stop limits the movement of the movable element in the opposite direction. Rather than using the resilient flexures of the suspension system as the sole biassing means, an additional Massing element biasses the movable element against the SMA actuator. When the moveable element is held against the end-stop, the force applied by the biassing element is greater than the force applied by the flexures of the suspension system. This reduces the design constraints, for example allowing a greater range of movement.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: November 26, 2013
    Assignee: Cambridge Mechatronics Limited
    Inventors: Richard Topliss, Dominic George Webber
  • Publication number: 20130183026
    Abstract: An interchangeable lens attachable to a camera body includes an image pickup optical system configured to form an optical image of an object, and a controller configured to start initializing an optical element included in the image pickup optical system so as to move the optical element to a predetermined position when the controller receives a first signal that commands a start of an initialization from the camera body, and configured to start initializing the optical element after the controller receives identification information from the camera body and a period elapses for which the camera body consumes more than a predetermined amount of power when the controller does not receive the first signal from the camera body.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 18, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: CANON KABUSHIKI KAISHA
  • Patent number: 8385734
    Abstract: A focus control apparatus for use in an imaging apparatus includes an exchangeable lens and a camera body. The exchangeable lens includes an optical system including a focus lens. The camera body is able to hold the exchangeable lens and includes an imaging element. The apparatus further includes a pan•tilt detection unit, a decision unit, and a control unit. The pan•tilt detection unit detects a pan and tilt of the camera body. The decision unit determines whether the exchangeable lens is able to achieve wobbling. The control unit controls an automatic focusing process of the focus lens in accordance with an image data generated by the imaging element. The control unit executes a different automatic focusing process in accordance with a decision made by the decision unit, when the pan or tilt of the camera body is detected to have started.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: February 26, 2013
    Assignee: Olympus Imaging Corp.
    Inventor: Tetsuo Kikuchi
  • Publication number: 20130028582
    Abstract: Methods for automatic focus in a stereographic imaging device that includes two imaging sensor systems are provided. Focus searches are executed on both imaging sensor systems to determine optimal focused lens positions for each. The focus searches may be executed currently or sequentially, and may be at differing lens position granularities. Focal scores and spatial locations, i.e., the locations of focus regions, may be shared between the imaging sensor systems to coordinate the focus searches. Touchscreen coordinates may also be used to coordinate the focus searches.
    Type: Application
    Filed: July 26, 2011
    Publication date: January 31, 2013
    Inventors: Aziz Umit Batur, Mark Noel Gamadia, Gregory Robert Hewes, Fred William Ware, JR., Wei Hong
  • Patent number: 8350959
    Abstract: A camera lens actuation apparatus for driving motion of a camera lens supported on a support structure by a suspension system. The apparatus incorporates a subassembly comprising SMA wire connected to at least one mounting member which is mounted to the support structure. At least one pair of lengths of SMA wire are held in tension between the camera lens element and the support structure at respective acute angles to the optical axis applying a tensional force having a component along the optical axis. The lengths of SMA wire in the pair are held at angle as viewed along the optical axis. There may be plural pairs with a balanced arrangement in which the forces generated have no net component perpendicular to the optical axis and generate no net torque around any axis perpendicular to the optical axis. A control circuit controls heating of the SMA wire in response to a measure of its resistance.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: January 8, 2013
    Assignee: 1 . . . Limited
    Inventors: Richard Topliss, David Livingstone, Robert John Leedham
  • Patent number: 8315512
    Abstract: Disclosed is a method for auto-focus control of a digital camera, the method including moving a focus lens of the digital camera to a position for a longest-distance photographing, and then extracting an edge value according to a corresponding position while moving the focus lens by a preset interval in a direction toward an image sensor; estimating a form of a preset function based on the extracted edge values, and calculating a maximum value of the estimated function; calculating a difference between a maximum value of the preset function calculated at a first current position of the focus lens and a maximum value of the preset function calculated at a previous position of the focus lens; and moving the focus lens to a position corresponding to a currently-calculated maximum value of the preset function when the difference between the maximum value of the preset function calculated at the first current position of the focus lens and the maximum value of the preset function calculated at the previous positio
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: November 20, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Woon-Tahk Sung, Byung-Kwon Kang, Jae-Sik Sohn
  • Patent number: 8203643
    Abstract: An automatic focusing device in accordance with the present invention comprises an image sensor being subjected to exposure performed in a rolling shutter system, a focusing system including a focus lens for focusing on the image sensor, an AF evaluation value calculating unit calculating an AF evaluation value based on an imaging signal obtained from the image sensor, and an AF control unit controlling an operation of the focusing system based on an AF evaluation value of a focusing area set in a part of the imaging picture by the image sensor, and the AF control unit makes the AF evaluation value of a focusing area of each imaging picture and a focus lens position at the time of exposure for the focusing area correspond to each other, and drives the focusing system during the period which overlaps with an exposure period while searching the focus lens position where the AF evaluation value becomes maximum.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: June 19, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Motohiro Yuba, Kazuhiro Tsujino, Takeshi Fujiwara
  • Patent number: 8180211
    Abstract: Systems and methods to achieve an auto-focus camera with a movable lens barrel having a mechanic shock detection capability combined with a re-initialization of the camera module have been disclosed. This re-initialization may comprise moving the lens barrel displaced by the shock to a home position. In a preferred embodiment of the invention a motor with integrated position detection has been used. In a normal operation the position detection feature senses the actual position of the lens, e.g. during auto-focusing of the lens barrel, and provides this position information to a control unit which is controlling the movement of the lens barrel to a target position. In case of a mechanic shock, e.g. if the camera module drops to ground, the control unit detects an extreme rapid displacement of the lens barrel and initiates a re-initialization of the camera module.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: May 15, 2012
    Assignee: Digital Imaging Systems GmbH
    Inventor: Timo Gerhards
  • Publication number: 20120076481
    Abstract: A lens movement control method and a lens movement control apparatus of a camera module for preventing allophone of a Voice Coil Actuator (VCA) are provided. The lens movement control method of a camera module includes switching the camera module from a camera operation mode to a camera stop mode, generating a control signal for removing the occurrence of VCA allophone in the camera stop mode, moving a lens to a VCA allophone removal location based on the generated control signal, and powering-off the camera module to move the lens moved to the VCA allophone removal location to a bottom surface of the lens.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 29, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventor: Joon HEO
  • Publication number: 20120051730
    Abstract: Techniques are provided for determining an optimal focal position using auto-focus statistics. In one embodiment, such techniques may include generating coarse and fine auto-focus scores for determining an optimal focal length at which to position a lens associated with the image sensor. For instance, the statistics logic may determine a coarse position that indicates an optimal focus area which, in one embodiment, may be determined by searching for the first coarse position in which a coarse auto-focus score decreases with respect to a coarse auto-focus score at a previous position. Using this position as a starting point for fine score searching, the optimal focal position may be determined by searching for a peak in fine auto-focus scores. In another embodiment, auto-focus statistics may also be determined based on each color of the Bayer RGB, such that, even in the presence of chromatic aberrations, relative auto-focus scores for each color may be used to determine the direction of focus.
    Type: Application
    Filed: September 1, 2010
    Publication date: March 1, 2012
    Applicant: APPLE INC.
    Inventors: Guy Côté, Jeffrey E. Frederiksen
  • Patent number: 8115814
    Abstract: An apparatus and method to track and to photograph a mobile object over a wide range, by a cooperative operation of multiple cameras. In addition, a mobile tracking system is provided for tracking the mobile object by the cooperation of multiple cameras, in which each camera includes a photographing device which photographs and recognizes the mobile object, a changing device which changes a view angle of the photographing device, a position deriving device which derives a position of the camera, a distance deriving device which derives the distance between the camera and the mobile object, and a communication device which transmits an identifier of the camera, a position of the camera, a moving direction of the mobile object and the distance between the camera and the mobile object to another camera and receives an identifier of the other camera, a position of the other camera, a moving direction of the mobile object and a distance between the other camera and the mobile object from the other camera.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: February 14, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Masaaki Imaizumi
  • Patent number: 8023815
    Abstract: Provided is a method for focusing a camera lens assembly, the focusing method including assembling a lens and a camera device; measuring an actual distance between the lens and the camera device in an assembled position; inputting a difference of the actual distance from a focal length of the lens; and when power is applied to the camera lens assembly, adjusting a distance between the lens and the camera device according to the offset value, such that the distance between the lens and the camera device becomes equal to the focal length of the lens.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun-Ho Yu, Doo-Sik Shin, Young-Kwon Yoon
  • Publication number: 20110217030
    Abstract: An image is focused onto an image sensor array by efficient movement of an adjustable focus lens by a lens focus motor. A minimum of three focus positions is required to determine an estimated best focus position of the lens focus motor. After which a sweep of the focus positions surrounding the estimated best focus position is performed to verify and determine the best actual focus position of the lens focus motor. A sharpness value of the image being focused comprising a Sobel edge detection or other detections means provide sharpness data to evaluate image sharpness at various lens focus motor positions.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Inventor: Lothar Muench
  • Publication number: 20110170846
    Abstract: Disclosed is a method for auto-focus control of a digital camera, the method including moving a focus lens of the digital camera to a position for a longest-distance photographing, and then extracting an edge value according to a corresponding position while moving the focus lens by a preset interval in a direction toward an image sensor; estimating a form of a preset function based on the extracted edge values, and calculating a maximum value of the estimated function; calculating a difference between a maximum value of the preset function calculated at a first current position of the focus lens and a maximum value of the preset function calculated at a previous position of the focus lens; and moving the focus lens to a position corresponding to a currently-calculated maximum value of the preset function when the difference between the maximum value of the preset function calculated at the first current position of the focus lens and the maximum value of the preset function calculated at the previous positio
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woon-Tahk SUNG, Byung-Kwon Kang, Jae-Sik Sohn
  • Publication number: 20110150446
    Abstract: A method of performing fast autofocus (AF) in a digital image processing apparatus having a plurality of lenses mounted therein. By dynamically setting AF search start positions and AF search directions by using current AF position information, fast AF may be performed.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 23, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Won-seok Song
  • Patent number: 7746564
    Abstract: A lens barrel includes a first optical element that is allowed to move along an optical axis, a first driven member connected to the first optical element, a second optical element disposed in the optical axis of the first optical element, which is allowed to move along the optical axis, a second driven member connected to the second optical element, a first drive shaft disposed substantially parallel to the optical axis to drive the first driven member along the optical axis, a second drive shaft disposed substantially parallel to the optical axis to drive the second driven member along the optical axis, a first drive unit connected to an end of the first drive shaft to drive the first drive shaft, and a second drive unit connected to an end of the second drive shaft to drive the second drive shaft and disposed at a position that partially overlaps a position of the first drive unit when viewed from the direction of the optical axis.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: June 29, 2010
    Assignee: Nikon Corporation
    Inventor: Hidenori Miyamoto
  • Patent number: 7719602
    Abstract: An electronic device can perform photographing by an AF (Auto-Focusing) function and a PF (Pan-Focus) function, and can give improvement of quickness of the taking of an image by automatically selecting an image, which is taken into the device, from a relation between the AF function and a shutter operation. The electronic device has an imaging part which catches an image obtained through an optical system, and also has a focusing mechanism which moves the optical system to an auto-focusing position or a fixed focus position. The electronic device further comprises a switch and a control part. The switch functions as a focusing switch ordering the focusing mechanism a focusing action, and also functions as a shutter switch ordering taking of an image caught by the imaging part. By this, the switch orders the focusing action or the taking of the caught image.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: May 18, 2010
    Assignee: Fujitsu Limited
    Inventors: Susumu Aoyama, Ken Hayashida, Toshikazu Houmura, Kiyoshi Miyazaki
  • Publication number: 20100111514
    Abstract: Provided is a method for focusing a camera lens assembly, the focusing method including assembling a lens and a camera device; measuring an actual distance between the lens and the camera device in an assembled position; inputting a difference of the actual distance from a focal length of the lens; and when power is applied to the camera lens assembly, adjusting a distance between the lens and the camera device according to the offset value, such that the distance between the lens and the camera device becomes equal to the focal length of the lens.
    Type: Application
    Filed: October 27, 2009
    Publication date: May 6, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Ho Yu, Doo-Sik Shin, Young-Kwon Yoon
  • Patent number: 7706597
    Abstract: A defect inspection apparatus which includes a pattern image obtaining unit obtaining a pattern image of a predetermined part by causing focusing control to be performed in order to achieve focus on the predetermined part within an observation object according to set focusing control parameters, a pattern image storing unit storing the pattern image, and a detecting unit detecting the presence/absence of an abnormal condition of a part to be inspected by making a comparison between the pattern image of a reference part within the observation object, and the pattern image of the part to be inspected within the observation object. The focusing control parameters, set when the pattern image of the part to be inspected is obtained, are determined based on sample information obtained when the pattern image of the reference part is obtained.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: April 27, 2010
    Assignee: Olympus Corporation
    Inventors: Takashi Yoneyama, Eriko Tsuji
  • Publication number: 20100040355
    Abstract: A method for calibration in the field of imaging systems and imaging systems using the method for calibration. In particular, the method involves calibration in the field of open loop variable focus imaging systems and methods for calibration in the field of imaging system having a variable optical parameter.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Applicant: Varioptic S.A.
    Inventors: Pierre Craen, Olivier Jacques-Sermet, Bruno Berge
  • Patent number: 7623774
    Abstract: Described are an electronic device, a camera, and a method for determining an orientation of a camera in an electronic device. The method includes measuring a position of the lens at rest within the lens cavity (680), determining a pointing direction of the camera based on the position of the lens (684), and moving the lens to a new or adjusted starting position for an auto-focus function based on the pointing direction (688). The lens is biased to a predetermined position within the lens cavity when the camera is oriented in a predetermined pointing direction. A lens position sensor can measure a position of the lens to record a measured position. By evaluating the measured lens position, the camera orientation can be determined. The auto-focus of the camera can be started at a starting position based on the camera orientation.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: November 24, 2009
    Assignee: Motorola, Inc.
    Inventor: Jason R Rukes
  • Patent number: 7620307
    Abstract: An image pickup apparatus includes a relative phase detecting unit operable to detect an amount of change in a relative phase associated with movement of a movable portion; an origin point position detecting unit operable to detect that the position of a reference part passes through an origin point; a relative position deriving unit operable to derive information on a relative position of the movable portion; a relative detection position retaining unit operable to retain a relative detection position of the movable portion based on the information on the relative position obtained at the time of the detection by the origin point position detecting unit; a calculating unit operable to calculate an absolute detection phase based on the relative detection position of the movable portion and to generate a drive signal based on the absolute detection phase; and a driving unit operable to move the movable portion to the reset position based on the drive signal.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 17, 2009
    Assignee: Sony Corporation
    Inventor: Toshio Katayama
  • Patent number: 7599722
    Abstract: The portable terminal with camera comprises: a first housing and a second housing which are movably connected to each other; an image pickup device which is arranged in one of the first housing and the second housing; and a conversion lens which is arranged in the other of the first housing and the second housing. In a first state where the first housing and the second housing are laid on each other, the image pickup device and the conversion lens have an identical optical axis so that a focal length of the image pickup device is converted from a focal length in a second state where the first housing and the second housing are arranged to each other differently than the first state. Thus, the focal length can be converted using a simple arrangement, so as to easily switch between image-capturing of a distant object as with ordinary cameras and image-capturing of an operator's face or the like.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: October 6, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Sugio Makishima
  • Publication number: 20090167930
    Abstract: A method and apparatus improves an auto focus system by altering, such as by positioning, at least one lens of a digital camera to a plurality of predetermined nonuniform lens positions corresponding to predetermined nonuniform lens position data. The method and apparatus selects a final lens position for the lens based on the predetermined nonuniform lens position data. In one example, a fixed number of predetermined nonuniform lens positions define a set of lens positions used to capture images during an auto focus operation. A final image is captured using a final lens position. The final lens position is determined by comparing focus metric information from each of the frames obtained at the various predetermined nonuniform focus lens positions and selecting the frame with, for example, the best focus metric as the lens position to be used for the final picture or image capture.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Applicant: ATI Technologies ULC
    Inventors: Reza Safaee-Rad, Milivoje Aleksic
  • Patent number: 7546030
    Abstract: Autofocus device has a lens-driving unit that drives a lens and a focal-point-position-detecting unit that detects a position of a focal point of the lens. The device also has a distance-measuring sensor that measures a distance to a subject and a control unit that performs a focusing operation to control the lens-driving unit to drive the lens, thereby meeting the position of the focal point of the lens detected by the focal-point-position-detecting unit to an in-focus position thereof. The control unit allows to be set a driving direction of the lens and a driving speed of the lens based on the position of the focal point of the lens detected by the focal-point-position-detecting unit and a distance measurement result measured by the distance-measuring sensor. The focusing operation then starts.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: June 9, 2009
    Assignee: Sony Corporation
    Inventors: Yujiro Ito, Hidekazu Suto, Shinji Takemoto
  • Patent number: 7536095
    Abstract: An autofocus device comprising a lens-driving unit, a focal-point-position-detecting unit that detects a position of a focal point of the lens, a distance measurement sensor that measures a distance to a subject, and a focus-evaluation-value-calculating unit that calculates a focus evaluation value using a frequency component of an image signal in a particular region in an imaging frame. The device also has a user interface and a control unit that controls the lens-driving unit to drive the lens based on the focus evaluation value or the focus evaluation value, the position of a focal point of the lens, and a measured distance result measured by the distance measurement sensor, thereby meeting the position of the focal point to an in-focus position. The control unit controls the lens-driving unit, the distance measurement sensor and the focus-evaluation-value-calculating unit based on the autofocus contents set by the user interface.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: May 19, 2009
    Assignee: Sony Corporation
    Inventors: Hidekazu Suto, Yujiro Ito, Shinji Takemoto
  • Patent number: 7536096
    Abstract: An autofocus device comprising a lens-driving unit, a focal-point-position-detecting unit that detects a position of a focal point of the lens, and a distance measurement sensor. The sensor measures a distance to a subject based on a reference field of view for distance measurement and a field of view for distance measurement being offset outwardly from the reference field of view and/or a field of view for distance measurement having a field of view that is different from the reference field of view. The device has a control unit that controls the lens-driving unit to drive the lens to meet the position of the focal point of the lens to an in-focus position thereof. The focusing operation starts by setting the lens drive based on a representative value selected from measured distance results obtained by the distance measurement sensor and the position of the focal point of the lens.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: May 19, 2009
    Assignee: Sony Corporation
    Inventors: Yujiro Ito, Hidekazu Suto, Shinji Takemoto
  • Patent number: 7522829
    Abstract: A camera system including an imaging optical system including a focus lens, a driving device which drives the focus lens, a moving speed command value input device which inputs a moving speed command value of the focus lens, a wobble amount calculating device which calculates a wobble amount for wobbling the focus lens, a moving amount command value calculating device which calculates a command value of an amount of movement of the focus lens per unit time based on the inputted moving speed command value, a moving amount maximum value calculating device which calculates a maximum value of the amount of movement of the focus lens per unit time in consideration of the wobble amount, a moving amount determining device which sets, when the command value is larger than or equal to the maximum value, the maximum value as the amount of movement of the focus lens per unit time.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: April 21, 2009
    Assignee: Fujinon Corporation
    Inventor: Hiroshi Mizumura
  • Patent number: 7493031
    Abstract: An automatic focusing module (100) includes a lens barrel (10), a first lens (11), a piezoelectric element (14), and a deformably adjustable lens (13). The first lens is disposed in the lens barrel. The piezoelectric element is installed in the lens barrel. The piezoelectric element is connected to a piezoelectric circuit. The deformably adjustable lens is disposed in the piezoelectric element.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: February 17, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Tai-Cherng Yu
  • Patent number: 7468753
    Abstract: A telecommunications device includes a portable telephone unit having both wireless communication capability and image capture capability, with a refocusing arrangement that is mechanically driven by operations of telephone components primarily included to enable telephone functions that are independent from camera functions. In one embodiment, the incoming call alerting device, such as the vibrator motor, is used to provide refocusing actuation. In another embodiment, the telephone unit is a “flip phone” and the hinging operations store actuation force for refocusing operations. A ratchet cam may be used in the refocusing arrangement of the image capture capability.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: December 23, 2008
    Assignee: Aptina Imaging Corporation
    Inventors: Mark Melvin Butterworth, John Phillip Ertel
  • Patent number: 7400825
    Abstract: An imaging apparatus measures shake of the apparatus using a gyro sensor, performs “a center stop control” until receiving an instruction to start recording the still picture, and performs “a lens correction control” after the start of exposure in the imaging apparatus. The center stop control controls the correction lens position to stop a correction lens at an optical axis center position (position of the correction lens at which an optical axis of the imaging lenses coincides with an optical axis of a correction lens). The lens correction control controls the correction lens position to correct blurring of the image formed on an imaging element based on the measuring result. The imaging apparatus returns the correction lens to the optical axis center position before receiving a next instruction to start a next recording, and then performs the center stop control on the correction lens.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: July 15, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Takeuchi, Yosuke Yamane, Manabu Kitamura, Hiroyuki Kawahara
  • Publication number: 20070297785
    Abstract: A lens position adjusting device of a lens barrel includes a stationary ring, and a manual rotating ring which is screw-engaged with the stationary ring to be manually rotatable about an optical axis to move a movable lens group in the optical axis direction, wherein the manual rotating ring includes an operating ring member; and a sub-ring member which is screwed into the stationary ring, wherein the operating ring member and the sub-ring member are coupled to each other so that a relative rotation position therebetween about the optical axis is adjustable.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 27, 2007
    Applicant: PENTAX CORPORATION
    Inventors: Yuji Kogure, Toshiyuki Irie
  • Patent number: 7224395
    Abstract: A camera comprises a beam splitter configured to divide an incident light from a subject through a photographing lens, an eyepiece lens configured to observe the incident light divided by the beam splitter with a viewfinder, a relay lens provided between the beam splitter and the eyepiece lens, and a shutter provided in a vicinity of the relay lens and configured to cut a reverse-incident light from the eyepiece lens.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: May 29, 2007
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Koji Kato, Ryuji Hirata, Takayuki Kijima, Keiichi Mori, Hideaki Yoshida, Junzo Sakurai, Toshiyuki Noguchi, Keiji Kunishige
  • Patent number: 7167203
    Abstract: A digital camera comprises a camera body and an image sensing unit. The image sensing unit is provided with a taking lens and an image sensing device for taking images and with an optical viewfinder. The camera body is provided with a controller for controlling the camera, signal processing circuits for processing signals from the image sensing device, a display device for displaying images taken and an interface for recording images taken onto a memory card. The display device serves as a viewfinder. In taking a image, the controller performs an AF control of the taking lens. When power supply to the camera is started, and when the display device is activated, the controller sets the taking lens at a predetermined focus position where in-focus condition is obtained for distant to close-range views, so that blurred images are not displayed on the display device.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: January 23, 2007
    Assignee: Minolta, Co., Ltd.
    Inventors: Kazuhiko Yukawa, Masahito Niikawa
  • Patent number: 7164855
    Abstract: An optical apparatus according to the present invention enables a reduced drive distance in focusing operation of a focus lens to allow focus detection and focusing operation in a short time period. The optical apparatus has a detection unit which detects the attitude of the optical apparatus; and a controller which performs focus control for driving a focus lens included in an image-taking optical system based on a focus state of the image-taking optical system. The controller changes a drive start position of the focus lens in accordance with the attitude of the optical apparatus before the focus state of the image-taking optical system starts to be taken.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 16, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takumi Uehara
  • Patent number: 6792204
    Abstract: An electronic shutter for a camera includes a first driving force generating mechanism for generating driving force for moving a lens barrel in a direction of an optical axis, a lens barrel moving mechanism for moving the lens barrel by use of driving force from the first driving force generating mechanism, an adjusting mechanism for adjusting a focus adjusting to an initial position when electric power is applied or a shutter release operation is applied, a second driving force generating mechanism for generating driving force for driving three sectors, a sector opening/closing mechanism for opening and closing the sectors by use of driving force from the second driving force generating mechanism, and an exposure position detecting mechanism for detecting an exposure position by cooperating with the sector opening/closing mechanism.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: September 14, 2004
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Jae-Gyeong Suh
  • Patent number: 6643458
    Abstract: There is disclosed an image pickup apparatus having a lens barrel which is sinkable into the apparatus body, and is controlled, if necessary, not to sink into the body even when the power is switched off The image pickup apparatus has a power key which switches on/off the power in accordance with a key operation, an instruction key which instructs a power source off state in which the lens barrel does not sink into the body, a storage unit which stores positions of lenses constituting a lens optical system when an instruction is given by the instruction key, and a control unit which switches off the power without sinking the lens barrel into the body in accordance with an instruction by the instruction key, and checks or adjusts positions of the lenses based on the positions stored in the storage unit when the power is switched on.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: November 4, 2003
    Assignee: Casio Computer Co., Ltd.
    Inventor: Shohei Sakamoto
  • Publication number: 20030175023
    Abstract: An electronic shutter for a camera includes a first driving force generating mechanism for generating driving force for moving a lens barrel in a direction of an optical axis, a lens barrel moving mechanism for moving the lens barrel by use of driving force from the first driving force generating mechanism, an adjusting mechanism for adjusting a focus adjusting to an initial position when electric power is applied or a shutter release operation is applied, a second driving force generating mechanism for generating driving force for driving three sectors, a sector opening/closing mechanism for opening and closing the sectors by use of driving force from the second driving force generating mechanism, and an exposure position detecting mechanism for detecting an exposure position by cooperating with the sector opening/closing mechanism.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 18, 2003
    Inventor: Jae-Gyeong Suh
  • Patent number: 6349173
    Abstract: A camera has a movable lens barrel that is stowed in a camera body while the camera is inactive, and is protruded from the camera body to a near range focusing position or a far range focusing position by rotating a drive ring in one direction. The movable barrel returns to the stowed position by rotating the drive ring further in the same direction, because of a cam mechanism interconnecting the drive ring with the movable barrel. To rotate the drive ring, a rotational power of a motor in a first direction is transmitted to the drive ring through a clutch mechanism. The clutch mechanism is switched over according to the rotational direction of the motor and transmits a rotational power of the motor in a second direction to another mechanism. A controller controls driving the motor in response to signals entered through manually operated members, including a power switch, a shutter button and a zone selector, with reference to detection signals from a barrel position detector.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: February 19, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaharu Kanai, Ko Aosaki, Hiroshi Soma, Mutsumi Naruse, Toshihiko Izaki, Yukitaka Takeshita, Masao Nakamori, Tetsuo Sakamoto
  • Patent number: 6295412
    Abstract: A shake-proof camera comprises a shake-correcting lens portion for correcting a shake by changing an optical axis of a photographic optical system and a moving lens portion disposed in the vicinity of the shake-correcting lens portion and arranged as movable in a direction of the optical axis, and further is provided with a shake-correcting lens lock apparatus for locking the shake-correcting lens portion by bringing the moving lens portion into contact with the shake-correcting lens portion.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: September 25, 2001
    Assignee: Nikon Corporation
    Inventors: Yuji Katano, Hidenori Miyamoto
  • Patent number: 6239912
    Abstract: A focal point detection apparatus having a plurality of detection areas comprises a view field mask disposed in the vicinity of a prearranged imaging plane of a photographing lens and provided with a plurality of view field apertures, a condenser lens provided with a plurality of lens units for respectively condensing light fluxes transmitting the plurality of view field apertures, and a re-imaging optical system provided with a plurality of re-imaging lens units for dividing a light flux transmitting each view field aperture into a pair of light fluxes transmitting different areas of the exit pupil of the photographing lens and for forming images of the respective view field apertures on light receiving means.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: May 29, 2001
    Assignee: Nikon Corporation
    Inventor: Masamitsu Ozawa
  • Patent number: 6118945
    Abstract: A lens control apparatus drives a lens with a sine wave by means of a pulse motor and detects the position of the lens by counting the number of pulses during the driving of the pulse motor, and stores a stop phase which is reached by a rotor when the pulse motor is brought to a driving-stopped state. When the lens control apparatus is to move the lens to an initial position and initialize a counter for detecting the position of the lens, the lens control apparatus corrects the count value of the counter by using information indicative of the stored stop phase of the rotor.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: September 12, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taeko Tanaka
  • Patent number: 6118947
    Abstract: A method for driving a shutter of a camera includes the steps of determining whether a first shutter release is performed, measuring light and distance to the subject if the first shutter release is performed, determining both a focus position of the focus control lens to the subject and a light exposure according to the measured light and distance, reading focus compensating data stored in a memory, calculating a compensated focus position on the basis of the focus compensating data, determining whether a second shutter release is performed, moving the focus control lens to the compensated focus position, and driving the shutter.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: September 12, 2000
    Assignee: Samsung Aerospace Industries, Ltd.
    Inventor: Jae-gyeong Suh
  • Patent number: 6075946
    Abstract: A position adjusting device for a camera optical unit includes a casing which is fixed within a camera for accommodating the optical unit therein, first and second supports provided between the casing and the optical unit for vertically and laterally pivotal movement of the optical unit with respect to the casing, a one-piece plate spring member having an integral laterally pressing piece for biasing the optical unit laterally and have an integral vertically pressing piece for biasing the optical unit vertically, and a pair of adjusting threads, threadingly engaged with the casing, for regulating vertical and lateral position of the optical unit against biasing forces of the vertically and laterally pressing pieces.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: June 13, 2000
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventor: Hideyuki Irie
  • Patent number: 6029010
    Abstract: A camera, an optical apparatus or an optical unit controller having a device for driving an optical unit, a device for determining a state of movement of the optical unit, and a control unit for changing the direction of movement of the optical unit according to whether the amount of driving necessary for the driving device to move the optical unit to a position at which the determination device determines the state of movement of the optical unit is equal to or smaller than a predetermined amount.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: February 22, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Miyanari
  • Patent number: 5940632
    Abstract: A magnification change-over device is arranged to be highly suitable for a camera of the kind having a photo-taking lens and a viewfinder arranged independently of each other. The device includes the photo-taking lens having an image magnification which is variable; the viewfinder which is arranged to have an image magnification thereof also variable; an operating device for varying the image magnification of the viewfinder; a detecting device for detecting the magnifying state of the viewfinder; and a driving apparatus for driving the photo-taking lens according to a detection signal of the detecting device when a shutter release operation is performed. After a magnification setting operation is performed on the viewfinder, the change-over device changes the magnification of the photo-taking lens according to the magnification of the viewfinder when a photographing operation is actually performed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 17, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takayuki Tsuboi
  • Patent number: 5864719
    Abstract: An optical apparatus comprises an association device which operates a viewfinder in association with a movement of an image forming optical system. After the movement of the image forming optical system, the association device severs the association of the viewfinder with respect to a movement of the image forming optical system in a direction different from that of the first-mentioned movement.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: January 26, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Michio Hirohata
  • Patent number: 5831671
    Abstract: An image-blur prevention apparatus includes a vibration detection unit for detecting a vibration state, an image-blur correction unit for correcting an image blur, an open-loop controllable driving unit for driving the image-blur correction unit, and a control unit for open-loop controlling the driving unit in accordance with an output from the vibration detection unit.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: November 3, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuo Chigira, Masami Sugimori