Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


By movable refractive structure

Subclass of:

359 - Optical: systems and elements

359554000 - IMAGE STABILIZATION

Patent class list (only not empty are listed)

Deeper subclasses:

Entries
DocumentTitleDate
20090195878LINEAR SWING ACTUATOR - There is provided a linear swing actuator, which is provided with a multipolar magnet arranged with one magnetic pole in a central portion and its respective opposite magnetic poles at both ends thereof along a length direction; and a single coil arranged to be relatively movable in the length direction face to face with respect to the multipolar magnet. In this configuration, a distance between the magnetic pole in the central portion and each of the magnetic poles at the both ends is arranged to be shorter than a dimension in the length direction of the coil.08-06-2009
20110188117ANTI-VIBRATION ZOOM LENS OPTICS - The present invention is directed to provide an anti-vibration zoom lens optics designed to bring about capabilities of reducing an effective aperture of one of lens groups displaceable for anti-vibration compensation to permit downsizing of anti-vibration mechanism, and of avoiding complicating the lens mechanism by virtue of the optics design simply of four of the lens groups where a unit associated with an aperture stop and an anti-vibration unit can be appropriately spaced apart from each other without interference between driving mechanisms for both the units. The four groups of lens pieces include the leading or first lens group of positive refractivity, the succeeding second lens group of negative refractivity, the third lens group of positive refractivity, and the trailing or fourth lens group of positive refractivity all arranged in this order from the front end closest to the object to the rearmost, where the fourth lens group include three subsets of lens pieces, namely, the leading or first subset, the succeeding or second subset, and the trailing or third subset all arranged in this order from the front end closest to the object to the rearmost, and the second subset of lens pieces are moved perpendicular to the optical axis to compensate for blur in the imaging plane.08-04-2011
20080259454ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE LENS - A zoom lens easily performs image stabilization with a compact and light image-stabilizing lens unit, properly corrects an aberration change during image stabilization, and achieves high optical performance. The zoom lens includes a first positive lens unit, a second negative lens unit, a third positive lens unit, a fourth negative lens unit, and a fifth positive lens. These lens units are arranged in order from an object side toward an image side, and are moved during zooming. The fourth lens unit is formed by one lens component, and is moved in a direction having a component that is perpendicular to the optical axis for image shifting. The Abbe number of a negative lens that forms the fourth lens unit, the thickness of the fourth lens unit on the optical axis, and the focal length of the entire zoom lens at the wide angle end are set appropriately.10-23-2008
20100046074ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME - A zoom lens includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a reflection member configured to bend an optical path, a third lens unit having a positive refractive power, and a fourth lens unit having a positive refractive power. In the zoom lens, two or more lens units of the first through the third lens unit move during zooming. In addition, in the zoom lens, the third lens unit includes a first lens sub-unit, and a second lens sub-unit configured to move in a direction having a component perpendicular to the optical axis to displace an image forming position.02-25-2010
20130083396OPTICAL IMAGE OFFSET DEVICE, OPTICAL IMAGE STABILIZATION DEVICE AND OPTICAL OBSERVATION APPARATUS - An optical image offset device for compensating for or producing a lateral offset of an image of an observation object (04-04-2013
20130070339METHOD AND DEVICE FOR IMAGE STABILIZATION IN AN OPTICAL OBSERVATION OR MEASUREMENT INSTRUMENT - A method is provided for image stabilization in an optical instrument (03-21-2013
20130050827ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens section G02-28-2013
20100002301IMAGE STABILIZER - An image stabilizer includes a rotor including a lens assembly, and configured to move perpendicular to an optical axis of light passing through the lens assembly, and a suspension unit configured to support movement of the rotor and to prevent the rotor from moving non-perpendicular to the optical axis of the light passing through the lens assembly. Accordingly, the image stabilizer prevents variance of characteristics of a rotor in a low frequency band according to the position and distortion of phase characteristics in a high frequency band. Therefore, the image stabilizer has consistent operation characteristics regardless of the position, posture, and movement of a person using an image capture device containing the image stabilizer.01-07-2010
20100134887OPTICAL IMAGE STABILIZER FOR CAMERA LENS ASSEMBLY - An optical image stabilizer for correcting an image blurred by shaking of a hand while an object is photographed using a mobile communication terminal is provided. The optical image stabilizer includes an image sensor. A lens assembly is mounted on an optical axis of the image sensor. A housing contains the lens assembly. A rotator provided between the housing and the lens assembly surrounding the lens assembly rotates the lens assembly around a first axis perpendicular to the optical axis and a second axis perpendicular to the first axis in engagement with the lens assembly. A driving member rotates the rotator around the first and second axes. The optical image stabilizer can be mounted in a miniaturized lightweight photographing device, so that a clear image can be captured even during vibration of a photographing device caused by hand-shaking.06-03-2010
20090303596TELEPHOTO ZOOM LENS - A telephoto zoom lens having four lens groups in a P-N-P-P configuration arranged sequentially from an object side. The first lens group includes a front group which is fixed when focusing and has a positive refractive power, and a rear group which moves when focusing and has a positive refractive power. The entire first lens group, including the front and rear groups, is fixed during zooming, and the second and third lens groups move during zooming. The second lens group compensates for shaking of an image plane caused by hand-shaking, by moving in a direction perpendicular to the optical axis, and satisfies the following condition:12-10-2009
20090303595Optical image stabilizing apparatus for micro-camera module - The present invention relates to an optical image stabilizing apparatus for a micro-camera module capable of effectively stabilizing an image of the camera module and implementing miniaturization of the camera module by supplying an “L”-shaped biaxial guide structure to prevent a tilt in a Y axial direction while moving an automatic focusing unit of the camera module in a horizontal X axial direction and to prevent a tilt in an X axial direction while moving the automatic focusing unit of the camera module in a horizontal Y axial direction.12-10-2009
20090091832OPTICAL ELEMENT MODULE AND IMAGE PICKUP DEVICE - An optical element module includes an optical element, and a plurality of actuator elements. In the module, each actuator element has an ion conductive polymer film and electrodes arranged on both sides of the film, and a whole of the actuator element is bent in a direction of thickness by applying a voltage between the electrodes, and the direction of the thickness of the actuator elements is a direction of an optical axis of the optical element, the actuator elements are arranged at equal intervals around the optical axis on a plane perpendicular to the optical axis, and a displacement due to the bend of one end part of at least one actuator element acts on one of a side surface and a bottom surface of the optical element to effect one of tilting and movement in the direction of the optical axis of the optical element.04-09-2009
20090091831LENS DEVICE - A lens device is provided and includes: a housing having a first fixed axis fixed in a transverse direction and a second fixed axis fixed in a longitudinal direction; a first slider supported so as to be slidable along the first fixed axis; a second slider supported so as to be slidable along the second fixed axis; a first movement bar fixed to the first slider in the longitudinal direction; a second movement bar fixed to the second slider in the transverse direction; a lens holding frame supported so as to be slidable along the first movement bar and the second movement bar; and a guide bar fixed to the housing in a direction perpendicular to the optical axis. One of the first and second sliders has an engagement section engaged with the guide bar so as to be regulated in the optical axis direction.04-09-2009
20090091829OPTICAL ELEMENT MODULE AND IMAGE PICKUP DEVICE - An optical element module includes an optical element, and a plurality of actuator elements. In the module, the plurality of actuator elements are arranged such that a direction of width of the oblong strip shape of the plurality of actuator elements is a direction of the optical axis and such that a direction of thickness of the plurality of actuator elements is perpendicular to the optical axis, another end part in a direction of length of the plurality of actuator elements is fixed such that one end part in the direction of length of the plurality of actuator elements is displaced by the bending to move the optical element, and at least one actuator element A of the plurality of actuator elements is disposed such that a direction in which the one end part of the actuator element A is displaced by the bending (X-direction) is orthogonal to a direction in which the one end part of another actuator element B is displaced by the bending (Y-direction).04-09-2009
20090091830LENS DEVICE - A lens device is provided and includes: a housing having a first fixed axis in a transverse direction and a second fixed axis in a longitudinal direction; a first slider supported so as to be slidable along the first fixed axis; a second slider supported so as to be slidable along the second fixed axis; a first movement bar fixed to the first slider in the longitudinal direction; a second movement bar fixed to the second slider in the transverse direction; and a lens holding frame supported so as to be slidable along the first movement bar and the second movement bar. The lens holding frame has two recessed engagement sections open in two different directions, and one of the first and second movement axes is inserted into and engaged with the two recessed engagement sections.04-09-2009
20110013283OPTICAL APPARATUS INCLUDING AN IMAGE STABILIZING APPARATUS - An image stabilizer includes: an optical system movable in a plane perpendicular to an optical axis (“orthogonal plane”) and correcting image blur; a movable member holding the optical system and movable relative to a fixed member in an orthogonal plane; a guide guiding the movable member while preventing from rotating in an orthogonal plane; three first balls rollably interposed between the fixed and guide members; two second balls rollably interposed between the guide and movable members; one third ball rollably interposed between the fixed and movable members; a biasing unit biasing the movable member toward the fixed member; and a drive unit driving the movable member relative to the fixed member in two directions perpendicular to the optical axis, wherein in an orthogonal plane, two of the first balls are rollable only in first direction; the second balls are rollable only in second direction different from the first direction.01-20-2011
20130163085OPTICAL IMAGE STABLILIZER - An optical image stabilizer, in which a magnet and a coil are arranges such that they oppose each other. The Hall sensor is arranged such that one face thereof is opposed to one face of the magnet. The Hall sensor can easily detect the location of a group of lenses by generating a corresponding signal in response to a variation in magnetic force following a variation in the gap between magnets depending on the direction in which a group of lenses is driven, and simultaneously, in response to a variation in magnetic force that occurs when the group of lenses is displaced in the direction that intersects the direction of the gap.06-27-2013
20090237794COLLAPSIBLE LENS BARREL AND OPTICAL INSTRUMENT USING THE SAME - A collapsible lens barrel includes a first holding frame (09-24-2009
20090231710ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME - A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, and a fourth lens unit having positive refractive power. The zoom lens performs zooming by moving each of the lens units. The first lens unit and the third lens unit are positioned closer to the object at a telephoto end than at a wide-angle end. The zoom lens satisfies the following conditions:09-17-2009
20090231709IMAGING DEVICE - An imaging device includes an axial-direction moving member which moves between an operating position and a retracted position in an optical axis direction, an in-plane moving optical element movable in a plane orthogonal to the optical axis, a controller which moves the in-plane moving optical element in the orthogonal plane to a reference position when the image device changes from the operating state to the retracted state, and a mechanical guide device, provided between the axial-direction moving member and the in-plane moving optical element. In a state where the in-plane moving optical element is deviated from the reference position, the mechanical guide device guides the in-plane moving optical element to the reference position by using a moving force of the axial-direction moving member when the axial-direction moving member moves from the operating position to the retracted position.09-17-2009
20090231708ZOOM LENS SYSTEM, IMAGING APPARATUS, AND METHOD FOR ZOOMING THE ZOOM LENS SYSTEM - Providing a zoom lens system having excellent optical performance with a high zoom ratio, an imaging apparatus, and a method for zooming the zoom lens system. The system including, in order from an object, a first group G09-17-2009
20120229903Zoom Lens System, Imaging Device and Camera - A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having negative optical power; a second lens unit having positive optical power; a third lens unit having negative optical power; and a fourth lens unit having positive optical power, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit moves along an optical axis, and wherein the second lens unit, in order from an object side to an image side, comprises: a lens element having positive optical power; a lens element having negative optical power; and a lens element having positive optical power, in which air spaces are included between the individual lens elements; an imaging device; and a camera are provided.09-13-2012
20120229901LENS HOLDER DRIVE APPARATUS, AND CAMERA EQUIPPED THEREWITH - Provided is a small, low-profile lens holder apparatus. A lens holder apparatus includes: a lens holder to which a lens section can be attached; a first drive section that moves the lens holder in a first direction along the optical axis; a second drive section that moves the lens holder in a second direction and/or third direction that are perpendicular to the optical axis and differ from each other; a supporting section that includes a base disposed in a position spaced from the lens holder and a supporting member that supports the lens holder so as to be able to move in the second direction and/or third direction; and a position detection section that is disposed on the supporting section in order to detect a position in the second direction and/or third direction of the lens holder with respect to the base.09-13-2012
20120113516ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME - A zoom lens includes first to fifth lens units having positive, negative, positive, negative, and positive refractive powers. During zooming, the fourth lens unit having a positive lens and a negative lens does not move, and the second, third, and fifth lens units move. The fourth lens unit moves to have a component perpendicular to the optical axis. The focal length of the entire system at the telephoto end, the focal length of the fourth lens unit, the focal length and the material of the positive lens of the fourth lens unit, the maximum moving distance, at the telephoto end, of the fourth lens unit, the lateral magnification of the fourth lens unit at the telephoto end, and the lateral magnification, at the telephoto end, of a lens system disposed at the image plane side with respect to the fourth lens unit are appropriately set.05-10-2012
20120113515IMAGING SYSTEM WITH AUTOMATICALLY ENGAGING IMAGE STABILIZATION - An image stabilized imaging system, comprising a variable magnification optical system for imaging a scene; an image stabilization system; a user control for controlling the magnification of the variable magnification optical system; and a processor. The processor is used to perform the steps of determining a user-controlled magnification setting of the variable magnification optical system; and selectively engaging the image stabilization system responsive to the determined magnification setting.05-10-2012
20120099201TILT-TYPE ANTI-SHAKE COMPENSATION STRUCTURE FOR AUTO-FOCUS MODULE - A tilt-type anti-shake compensation structure for auto-focus module includes an auto-focus module having a lens assembly held thereto and driving the latter to move forward and rearward in a light entering path, i.e. in z-axis direction, so as to focus a captured image; an outer frame enclosing the auto-focus module therein, and having an elastic supporting member provided therein to connect to and between upper ends of the outer frame and the auto-focus module; and a compensation driving unit arranged behind the auto-focus module for driving the auto-focus module to tilt leftward and rightward on x-axis, or forward and rearward on y-axis, within the outer frame, so as to compensate any image deviation due to shake caused by hands. The anti-shake structure is simple and can quickly compensate shake caused by hands.04-26-2012
20110279899CORRECTION-LENS-MOVING VOICE COIL MOTOR, ANTI-VIBRATION DEVICE, INTERCHANGEABLE LENS UNIT AND OPTICAL APPARATUS - A voice coil motor for moving a correction lens comprising a magnet unit comprising a pair of yokes and at least one permanent magnet for defining a magnetic gap, and a coil disposed in the magnetic gap, to cause the relative linear movement of the magnet unit and the coil by current supplied to the coil; the permanent magnet having different magnetic poles adjacent to each other along the movement direction on a surface opposing the magnetic gap; the width of the permanent magnet in the movement direction being two times the width Wm of the magnetic poles; the width Wa of the coil in the movement direction being smaller than the width 11-17-2011
20110279898ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME - A zoom lens, including: a first lens unit; a second lens unit; a magnification-varying system including two or more lens units; and a fourth lens unit, in which: the fourth lens unit includes: a forth lens first unit having a negative refractive power; a forth lens second unit having a negative refractive power that moves so as to have a component perpendicular to an optical axis so that an image is displaced in a direction perpendicular to the optical axis; and a forth lens third unit having a positive refractive power; and the following conditional expression is satisfied: 1.211-17-2011
20120188644LIGHT AMOUNT ADJUSTING DEVICE AND IMAGE CAPTURE APPARATUS - A light amount adjusting device includes: a cover plate having a light-passing hole; a first separator being sheet-shaped and having a hole; a second separator being elastically deformable and sheet-shaped, positioned on a side opposite to the cover plate with the first separator therebetween, and having a hole; a first light amount adjusting blade movable between the cover plate and the first separator; a second light amount adjusting blade being movable between the first separator and the second separator; a base body to which the cover plate, the first separator, and the second separator are mounted, having a throughhole and mounting grooves, the throughhole being formed to have a diameter larger than a diameter of the hole of the second separator, the mounting grooves allowing the second separator to be mounted therein and being opened toward the throughhole.07-26-2012
20090073562Image fluctuation correcting apparatus - An image fluctuation correcting apparatus rotates a first rotary apex angle prism held in a first prism holding member around a first shaft in a direction for canceling an amount of horizontal fluctuation by electromagnetic force generated between a first drive coil and a first magnet by flowing electric current in the first drive coil. Also, the image fluctuation correcting apparatus rotates a second rotary apex angle prism held in a second prism holding member around a second shaft, which is located 180-degree angle away from the first shaft, in a direction for canceling an amount of vertical fluctuation by electromagnetic force generated between a second drive coil and a second magnet by flowing electric current in the second drive coil.03-19-2009
20110299163THREE-DIMENSIONAL-CAMERA LENS SYSTEM - In each of left and right lens devices used in the three-dimensional camera, an antivibration lens group for preventing image blur caused by vibrations is disposed in an image-pickup optical system. A movement instructing device which adjusts, by manual operation, a reference position at which the vibration lens group is fixedly held when antivibration control is stopped is provided in an operation unit about the vibration control. An improper feeling of a three-dimensional image caused by optical-axis misalignment can be reduced by adjusting the reference position of the antivibration lens group by the movement instructing device.12-08-2011
20110286099LENS DRIVING DEVICE, AUTOFOCUS CAMERA AND CAMERA-EQUIPPED MOBILE TERMINAL - In the lens driving device of the present invention, at least two second coils are disposed at a 90 degree interval in a circumferential direction of a first coil wound around an outer circumference of a lens support in the circumferential direction, at least four magnets are provided at an inner circumferential side of a circumferential wall of a yoke and are provided at even intervals about the circumferential direction of the first coil, each magnet being provided so that an inner circumferential face is the same magnetic pole and opposes an outer circumferential face of the first coil, and in addition is opposite the second coil at the position of providing the second coil. When the lens support is moved in the optical axis direction, an electric current flows in the first coil, and when the lens support is moved in an X-Y direction orthogonal to the optical axis, a predetermined electric current flows in a predetermined second coil.11-24-2011
20110141565POSITION CONTROLLER FOR OPTICAL ELEMENT - A position controller includes a movable member which holds the optical element and supported by a support member to be linearly movable from an anti-shake driving range in which the optical element is positioned on an optical axis to a removed position outside of the anti-shake driving range, an electromagnetic actuator including first and second coils supported by the support member and first and second magnets supported by the movable member, and an insertion/removal operational member. When the movable member is in the anti-shake driving range, the first and second magnets face the first and second coils, respectively. The first and second magnets are arranged on opposite sides of a removing-direction center line passing through a center of the optical element in a moving direction of the movable member so that a distance between magnetic-pole boundary lines of the first and second magnets increases toward the anti-shake driving position.06-16-2011
20100033822LENS ACTUATOR AND CAMERA SYSTEM HAVING SAME - An exemplary lens actuator includes a fixed unit, a movable unit, and a connecting member for connecting the fixed unit with the movable unit. The fixed unit includes a fixed barrel and a plurality of magnets mounted on the fixed barrel. The fixed barrel includes a first receiving cavity in a center thereof for receiving the movable unit therein. The movable unit includes a lens barrel, and a plurality of coils connected with the outer wall of the lens barrel and facing the respective magnets.02-11-2010
20100033821High variable power zoom lens - A compact and lightweight, high variable power zoom lens especially suitable for single-lens reflex digital cameras, which is 75 degrees or even wider in field angle at the wide-angle end, approximately 3 to 4 in F-number at the wide-angle end and approximately 6 to 7 at the telephoto end, and about 15× in variable power ratio. The zoom lens of four groups of lens pieces respectively exerting positive, negative, positive, and positive refractivities varies the power from the wide-angle end to the telephoto end as a result of the 1st and 2nd lens groups being split more, the 2nd and 3rd lens groups coming closer to each other, and the 3rd and 4th lens groups also coming closer to each other. The 3rd lens group has the leading set of lens pieces of positive refractivity closer to objects and the trailing set of lens pieces of negative refractivity, and the trailing set alone are moved to be orthogonal to the optical axis to compensate for defocus in the imaging plane caused by a tremor of the user's hand(s). The 2nd lens group are displaced closer to objects for the focusing.02-11-2010
20110216413OPTICAL IMAGE STABILIZER AND OPTICAL APPARATUS - The optical image stabilizer includes a shift member holding an image stabilizing element and being movable with respect to a center axis, a lock member disposed around the shift member and rotatable about the center axis between a lock position to limit movement of the shift member and an unlock position to release the limit of the movement of the shift member, and a base member including a supporting portion to rotatably support the lock member. The shift member includes protrusions at its plural circumferential places. The lock member includes, in its inner circumferential part, locking portions to receive contact of the protrusions at the lock position so as to limit the movement of the shift member. The supporting portion is formed so as to include plural openings allowing contact of the protrusions with the lock portions and so as to support the inner circumferential part of the lock member.09-08-2011
20100007956VIBRATION CORRECTING DEVICE, LENS BARREL, AND OPTICAL DEVICE - An optical device with an imaging device for forming an image of a subject with a lens device includes a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch direction drive unit for driving the movable member in the pitch direction within the optical axis orthogonal plane and a yaw direction drive unit for driving the movable member in the yaw direction within the optical axis orthogonal plane. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes.01-14-2010
20090141351ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein an interval between at least any two lens units among the lens units is changed so that an optical image of an object is formed with a continuously variable magnification, a first lens unit arranged on the most object side among the lens units includes a lens element having a reflecting surface for bending a light beam from the object, and any one of the lens units, any one of the lens elements, or alternatively a plurality of adjacent lens elements that constitute one lens unit move in a direction perpendicular to an optical axis; an imaging device including the zoom lens system; and a camera employing the imaging device.06-04-2009
20090190220IMAGING LENS, OPTICAL DEVICE THEREOF, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens includes at least a first positive lens group, a first negative lens group that moves during focusing, a second positive lens group that moves during focusing, a second negative lens group that can move in a direction substantially vertical to an optical axis, and a positive lens group, which are disposed in order from an object, wherein a condition of an expression, which is 2.0<(−f4)/d34<20.8, is satisfied, where f4 is a focal length of the second negative lens group (vibration proof group) that can move in a direction substantially vertical to the optical axis, and d34 is an air distance on the optical axis upon focusing on infinity, between a lens surface disposed closest to an image of a lens group (the second positive lens group in the case of this embodiment) which is disposed to an object side of the second negative lens group that can move in a direction substantially vertical to the optical axis, and a lens surface disposed closest to the object of the negative lens group that can move in a direction substantially vertical to the optical axis.07-30-2009
20090086321ZOOM LENS SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS SYSTEM - Providing a zoom lens system having a vibration reduction function capable of performing quick focusing with excellent optical performance even upon vibration reduction. The system including, in order from an object, a first lens group G04-02-2009
20090262425IMAGE BLUR CORRECTION APPARATUS, AND IMAGING APPARATUS OR OPTICAL APPARATUS EQUIPPED WITH IMAGE BLUR CORRECTION APPARATUS - An image blur correction apparatus includes first and second lens units, a supporting unit aligning the first and second lens units in an optical axis direction, so that the first and second lens units can independently move in a direction perpendicular to the optical axis, a driving unit driving the first and second lens units in the direction perpendicular to the optical axis, a relative position detection unit detecting a relative position between the first and second lens units, a shake detection unit detecting a shake amount added to the image blur correction apparatus, and a control unit controlling the driving unit based on an output of the shake detection unit. The control unit performs closed-loop control based on an output of the relative position detection unit so that the second lens unit moves in a direction opposite to that of the first lens unit.10-22-2009
20090290216ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME - A zoom lens includes a first, third and fourth lens group of positive refracting power, a second lens group of negative refracting power, wherein, during zooming from a wide-angle end to a telephoto end, at least the first lens group moves, wherein the third lens group includes, a first lens sub-group of positive refracting power and a second lens sub-group of negative refracting power, wherein the second lens sub-group includes a single negative lens, wherein the first lens sub-group of the third lens group is moved to keep a perpendicular component relative to an optical axis to correct image blur to be produced when the zoom lens vibrates, and wherein, when a focal length of the first lens group is denoted by f1 and the focal length of the whole system at the wide-angle end is denoted by fw, a conditional expression 10.011-26-2009
20120293869INTERNAL FOCUS LENS - An internal focus lens includes sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The first lens group includes an anti-vibration lens formed by a negative lens that is moved in an orthogonal direction with respect to an optical axis to correct image blur consequent to optical system vibration, and further includes an aperture stop disposed farther on an image side of the first lens group than the anti-vibration lens. The second lens group is moved along the optical axis to perform focusing.11-22-2012
20110267692IMAGE BLUR CORRECTION APPARATUS AND IMAGE PICKUP UNIT HAVING IMAGE BLUR CORRECTION APPARATUS - An image blur correction apparatus according to the present invention includes a base, a movable holding member, a support mechanism that supports the movable holding member to be movable within a plane vertical to an optical axis of a lens, a driving means for driving the movable holding member, a position detecting means, and a returning means for returning the movable holding member to a pause position, wherein the driving means includes coils (11-03-2011
20090168180LENS BARREL AND OPTICAL ELEMENT DRIVING DEVICE - A lens barrel has a first lens group, a second lens group, a third lens group, a first support frame for supporting the first lens group, a second support frame for supporting the second lens group, a third support frame for supporting the third lens group, a first drive unit, and a second drive unit. The first lens group has an overall negative refractive power, and includes a prism. The second support frame is driven along a second optical axis by the first drive unit. The third support frame is driven along the second optical axis by the second drive unit. Part of a first movement region in which the second support frame moves overlaps a second movement region in which the third support frame moves.07-02-2009
20090168179Zoom lens and image pickup apparatus - A zoom lens and an image pickup apparatus are disclosed. The zoom lens includes, in order from an object side to an image side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a positive refractive power. The fifth lens group includes a fixed group having a negative refractive power, and a movable group having a positive refractive power and being movable in a direction substantially orthogonal to the optical axis. The image formed on an image surface is movable in a direction substantially orthogonal to the optical axis by moving the movable group of the fifth lens group in the direction substantially orthogonal to the optical axis. The fifth lens group is satisfied predetermined conditions.07-02-2009
20080212184Zoom Lens and Imaging Apparatus - Provided are a zoom lens and an imaging apparatus using the zoom lens, the zoom lens being suited for achieving compactness without increasing the number of lenses and being capable of implementing motion blur compensation. The zoom lens includes lenses arranged in order from an object side into a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having positive refractive power. In the event of a shift of a lens position mode from a wide angle end mode to a telephoto end mode, the first lens group is fixed along an optical axis direction, the second lens group moves to an image side, the third lens group is fixed along the optical axis direction, the fourth lens group compensates for a fluctuation in an image plane position due to the shift of the second lens group, and concurrently moves along the optical axis direction in a close-distance focusing event, and the fifth lens group is fixed along the optical axis direction. An aperture diaphragm is disposed in the vicinity of the third lens group. The fifth lens group includes a negative sub lens group having negative refractive power and a positive sub lens group having a positive refractive power, wherein the image can be shifted in conjunction with a shift of the positive sub lens group in a direction substantially perpendicular to the optical axis. The zoom lens satisfies conditional equation (1) given as 0.609-04-2008
20110007396Zoom lens and imaging apparatus - A zoom lens includes, in order from an object side to an image side: a first lens group that has a positive refractive power and remains stationary in a direction of an optical axis; a second lens group that has a negative refractive power and is movable on the optical axis so as to perform a zoom operation; a third lens group that has a positive refractive power and remains stationary in the direction of the optical axis during zooming and focusing; a fourth lens group that has a positive refractive power and is movable on the optical axis so as to correct fluctuation in imaging position and correct change in imaging position caused by change in object distance; and a fifth lens group that has a positive refractive power and remains stationary in the direction of the optical axis.01-13-2011
20120069440OPTICAL SYSTEM, OPTICAL APPARATUS EQUIPPED THEREWITH, AND METHOD FOR MANUFACTURING OPTICAL SYSTEM - An optical system SL installed in a single-lens reflex camera includes, in order from an object side, a first lens group G03-22-2012
20090141350ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein an interval between at least any two lens units among the lens units is changed so that an optical image of an object is formed with a continuously variable magnification, a first lens unit arranged on the most object side among the lens units includes a lens element having a reflecting surface for bending a light beam from the object, and any one of the lens units, any one of the lens elements, or alternatively a plurality of adjacent lens elements that constitute one lens unit move in a direction perpendicular to an optical axis; an imaging device including the zoom lens system; and a camera employing the imaging device.06-04-2009
20110141566POSITION CONTROLLER FOR OPTICAL ELEMENT - A position controller for an optical element of an optical system includes a first movable member supported by a support member to be movable relative thereto in a first direction orthogonal to an optical axis, a second movable member which holds the optical element and is supported by the first movable member to be movable relative thereto in a second direction which is nonparallel to the first direction, an electromagnetic actuator that produces a driving force for moving at least the second movable member in the second direction, and an insertion/removal drive mechanism for moving the second movable member between an anti-shake driving position, at which a position control for the second movable member can be performed using the electromagnetic actuator, and a removed position at which the second movable member is positioned outside a range of the position control that uses the electromagnetic actuator.06-16-2011
20110141564LENS ACTUATOR - A lens actuator includes a cylindrical carrier having a hollow for accommodating a lens, the hollow being formed in a first direction; a driving yoke for housing the carrier; a base for holding the yoke thereon; a driving magnet and a driving coil, which are fixed either to the outer periphery of the carrier or the driving yoke; a moving magnet fixed to the driving yoke; and a moving coil fixed to the base. The carrier is movable with respect to the driving yoke in the first direction, and the driving yoke is movable with respect to the base in a second direction perpendicular to the first direction. The driving magnet and the driving coil face each other in the second direction, and the moving magnet and the moving coil face each other in the first direction.06-16-2011
20110228394ZOOM LENS - A zoom lens includes a magnification-varying lens unit moving in an optical axis direction; a movable optical unit arranged in an object side of the magnification-varying lens unit; and a controller for moving the optical unit and the zoom lens displacing an image. A movable range of the optical unit is larger at a wide angle end than at a telephoto end. The zoom lens further includes a position detecting unit for detecting a relative position of the magnification-varying lens unit; and a position computing unit for computing a position of the magnification-varying lens unit. It is driven to a reference position immediately after power-on, then its position stored in the position computing unit is initialized to the reference position, then it is driven to a position at power-on, and then the movable range of the optical unit is set so as to correspond to the position of the magnification.09-22-2011
20090257125IMAGING LENS, OPTICAL APPARATUS AND METHOD FOR FORMING IMAGE USING THIS IMAGING LENS - An imaging lens includes a first lens group having a positive refractive power, an aperture stop, and a second lens group having a positive refractive power, which are disposed in order from an object. The first lens group has a first lens component having a negative refractive power and a second lens component having a positive refractive power, which are disposed in order from the object, and conditions expressed by the expressions 0.1210-15-2009
20090219619ZOOM LENS SYSTEM, IMAGING APPARATUS, METHOD FOR ZOOMING, AND METHOD FOR VIBRATION REDUCTION - Providing a high optical performance zoom lens system with realizing a high zoom ratio and compactness suitable for a highly integrated electronic imaging device. The system includes, in order from an object along an optical axis: a first group G09-03-2009
20090251782ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE LENS - A zoom lens easily performs image stabilization with a compact and light image-stabilizing lens unit, properly corrects an aberration change during image stabilization, and achieves high optical performance. The zoom lens includes a first positive lens unit, a second negative lens unit, a third positive lens unit, a fourth negative lens unit, and a fifth positive lens. These lens units are arranged in order from an object side toward an image side, and are moved during zooming. The fourth lens unit is formed by one lens component, and is moved in a direction having a component that is perpendicular to the optical axis for image shifting. The Abbe number of a negative lens that forms the fourth lens unit, the thickness of the fourth lens unit on the optical axis, and the focal length of the entire zoom lens at the wide angle end are set appropriately.10-08-2009
20090251781ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM - A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit. The zoom lens system according to the present invention, in order from an object side to an image side, comprises: a first lens unit having positive optical power; a second lens unit having negative optical power; and at least two subsequent lens units, wherein at the time of zooming, all lens units move in a direction along the optical axis so that intervals between the lens units vary, and at the time of focusing, a second most image-side lens unit moves in a direction along the optical axis.10-08-2009
20090251779ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM - A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit. The zoom lens system according to the present invention, in order from an object side to an image side, comprises: a first lens unit having positive optical power; a second lens unit having negative optical power; and at least two subsequent lens units, wherein the two lens units includes a lens unit A having positive optical power and a lens unit B arranged on the image side relative to the lens unit A, at the time of zooming, all lens units move in a direction along the optical axis so that intervals between the lens units vary, at the time of focusing, the lens unit B moves in a direction along the optical axis, and at the time of compensating image blur caused by vibration in the zoom lens system, either the entirety of a lens unit arranged on the object side relative to the lens unit A or a sub lens unit which is a part of a lens unit arranged on the object side relative to the lens unit A and is arranged on the image side therein moves in a direction perpendicular to the optical axis.10-08-2009
20090262426ZOOM LENS SYSTEM, LENS BARREL, IMAGING DEVICE AND CAMERA - A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein an interval between at least any two lens units is changed so that an optical image is formed with a continuously variable magnification, the zoom lens system comprises a first lens unit having positive power, a second lens unit that includes a lens element having a reflecting surface and has negative power and subsequent lens units including at least one lens unit having positive power, and the condition: 0.50<(C−S)/H<1.00(C=√{square root over ( )}(2R·d10-22-2009
20090316266ZOOM LENS AND CAMERA HAVING THE SAME - A zoom lens including four lens units having positive, negative, positive, and positive refractive power in order from an object side to an image side thereof, wherein the distance between the adjacent lens units changes when zooming: wherein the third lens unit includes, in order from the object side to the image side, a first lens subunit having negative refractive power and a second lens subunit having positive refractive power. The zoom lens is configured to displace an image formed by the zoom lens in a direction perpendicular to its optical axis by moving the second lens subunit so as to have a component perpendicular to the optical axis, wherein the curvature radius of a surface, closest to the object, of the first lens subunit and the curvature radius of a surface second closest to the object, of the first lens subunit are set at appropriate values.12-24-2009
20100177386ELECTROWETTING DEVICE WITH POLYMER ELECTRODE - The invention concerns an electrowetting optical device comprising a chamber (07-15-2010
20100002300Zoom lens and pickup apparatus - Disclosed herein is a zoom lens, including: a first lens group having a positive refracting power; a second lens group having a negative refracting power; a third lens group having a positive refracting power; and a fourth lens group having a positive refracting power; the first, second, third and fourth lens groups being disposed in order from the object side; the first lens group including only a cemented lens including a positive lens and a negative lens cemented in order from the object side and having a generally positive refracting power; the first lens group being configured so as to satisfy the conditional expression (25<ν01-07-2010
20100259822ACTUATOR AND ANTI-VIBRATION CAMERA MODULE USING SAME - An actuator includes a first barrel, a second barrel, a first magnetic portion, a second magnetic portion and a plurality of springs. The second barrel is received in the first barrel. The first magnetic portion and the second magnetic portion are arranged between the first barrel and the second barrel. The first magnetic portion is fixed to the first barrel. The second magnetic portion is fixed to the second barrel. The first magnetic portion is opposite to the second magnetic portion. The first and second magnetic portions cooperatively drive the second barrel to move in the first barrel on the plane perpendicular to a central axis of the first barrel. The springs are elastically connected to the first barrel and to the second barrel, to provide a restoring force between the first barrel and the second barrel when the first barrel is not coaxial with the second barrel.10-14-2010
20090046366ZOOM LENS, AND OPTICAL APPARATUS AND METHOD FOR FORMING AN IMAGE OF AN OBJECT USING THE ZOOM LENS - The present invention is a zoom lens ZL which has a plurality of lens groups which are disposed in order from an object along an optical axis, wherein among the plurality of lens groups, a first lens group G02-19-2009
20120127576ANTI-VIBRATION ACTUATOR AND LENS UNIT AND CAMERA FURNISHED WITH SAME - The present invention is an anti-vibration actuator (05-24-2012
20100118402OPTICAL IMAGE STABILIZER AND OPTICAL APPARATUS - The optical image stabilizer (05-13-2010
20120033300FIXED FOCAL LENGTH LENS HAVING IMAGE STABILIZATION FUNCTION - A fixed focal length lens has a focal length of a whole system shorter than a back focus. The fixed focal length lens includes an aperture stop, and an image-stabilizing lens unit that moves in a direction including a component of a direction orthogonal to an optical axis to reduce an image blur. The conditions of 0.102-09-2012
20110032617OPTICAL APPARATUS - The optical apparatus includes a base member, a shift member holding an image stabilizing lens and movable in a direction orthogonal to an optical axis direction of the optical apparatus with respect to the base member, a biasing member biasing the shift member toward the base member in the optical axis direction, and an aperture stop unit disposed on a side opposite to the base member with respect to the shift member and adjusting an amount of light. The aperture stop unit includes a displacement preventing portion which makes contact with the shift member to prevent the shift member from being displaced toward the aperture stop unit.02-10-2011
20100302640LENS SYSTEM, OPTICAL APPARATUS AND MANUFACTURING METHOD - A lens system having, in order from an object, at least a first lens group G12-02-2010
20110122495IMAGING LENS UNIT AND IMAGING APPARATUS - An imaging lens that focuses light from a subject on an imaging surface, a lens holder that holds the imaging lens, a holder that holds the lens holder so as to be capable of moving along the optical axis of the imaging lens and capable of rotating in a tilting direction with respect to the optical axis, magnets and coils that independently cause drive forces to act in the direction along the optical axis with respect to the lens holder at at least three locations of the periphery of the lens holder, a Hall element that detects the attitude of the lens holder with respect to the optical axis, and a control apparatus that controls the magnitude and direction of the drive force of each coil in accordance with the detection output of the Hall element. In accordance with the present invention, in the cladding lens unit, it is possible to perform a movement in an optical axis direction of the imaging lens and a tilt movement with respect to the optical axis with a simple constitution.05-26-2011
20090034076LENS APPARATUS, SUPPORT APPARATUS THEREFOR, AND IMAGE CAPTURING SYSTEM - A lens apparatus is electrically connected to a support apparatus including a detecting unit that detects displacement information corresponding to pan or tilt. The lens apparatus includes a converter configured to convert the displacement information into control information; an image stabilization unit configured to perform image stabilization by using the control information; and a format transmitting unit configured to transmit a signal used for discriminating a format of the displacement information to the converter. The converter uses the signal transmitted from the format transmitting unit to convert the displacement information into the control information.02-05-2009
20130155511ZOOM LENS SYSTEM - A zoom lens system includes, in order from the object side to the image side, a first, a second, and a third lens groups. The first lens group includes, in order from the object side to the image side, a first and a second lenses. The second lens group is capable of floating to realize an image stabilizating function and includes, in order from the object side to the image side, a third to sixth lenses. The zoom lens system satisfies various formulas, including 0.306-20-2013
20110242660DIRECT DERIVATIVE FEEDFORWARD VIBRATION COMPENSATION SYSTEM - Methods and apparatus for providing vibration compensation using position measurements are disclosed. According to one aspect of the present invention, a method of compensating for vibrations of an object includes obtaining a plurality of position measurements associated with the object. The method also includes processing the plurality of position measurements to determine a derivative acceleration, and determining a compensatory force to counteract the vibrations of the object. Determining the compensatory force includes using the derivative acceleration. Finally, the method includes applying the compensatory force to the object.10-06-2011
20090251780ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM - A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit. The zoom lens system according to the present invention, in order from an object side to an image side, comprises: a first lens unit having positive optical power; a second lens unit having negative optical power; and at least three subsequent lens units, the at least three subsequent lens units, in order from an object side to an image side, include: a lens unit A having negative optical power; and a lens unit B having positive optical power and arranged on the image side of the lens unit A, at the time of zooming, all lens units move in a direction along the optical axis so that intervals between the lens units vary, and at the time of focusing, the lens unit A moves in a direction along the optical axis.10-08-2009
20120200923ZOOM LENS SYSTEM, OPTICAL APPARATUS, AND METHOD FOR FORMING AN IMAGE - Providing a zoom lens system having a high zoom ratio being compact with high optical performance. The system includes, in order from an object along an optical axis, a first lens group G08-09-2012
20110032616OPTICAL UNIT AND OPTICAL APPARATUS - The optical unit includes a base member, a shift member configured to hold an image stabilizing lens and to be movable with respect to the base member in a plane orthogonal to an optical axis to reduce image blur, and an image stabilizing actuator configured to shift the shift member. The optical unit further includes a light controlling member disposed further inside than the image stabilizing actuator in a direction orthogonal to the optical axis and in an area where the image stabilizing actuator is disposed in a direction parallel to the optical axis.02-10-2011
20110134529ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR FORMING AN IMAGE OF AN OBJECT - In a zoom lens having a plurality of lens groups which are disposed in that order from an object, a first lens group that is disposed to closest to the object among the plurality of lens groups has positive refractive power and comprises a light path bending element which bends the path of light and a plurality of lens components which are disposed closer to the object than the light path bending element; and, where the distance on the optical axis from the surface closest to the object in the first lens group to the surface closest to the object in the light path bending element is L06-09-2011
20100214658ZOOM LENS, OPTICAL APPARATUS EQUIPPED THEREWITH AND METHOD FOR MANUFACTURING THE ZOOM LENS - A zoom lens ZL installed in an electronic still camera 08-26-2010
20100246002ZOOM LENS SYSTEM AND IMAGE TAKING APPARATUS INCLUDING THE SAME - Provided is a zoom lens system includes, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; and a fourth lens unit having a positive refractive power, the second and fourth lens units move on an optical axis during zooming. The third lens unit includes, in order from the object side to the image side: a third A lens unit having a negative refractive power; and a third B lens unit having a positive refractive power, the third B lens unit including a positive lens and a negative lens being joined together. When curvature radii of surfaces of the cemented lens on the object side and the image side are R09-30-2010
20100195207ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM - Provided is a zoom lens system including a compact focusing lens unit and having a suppressed change in image magnification at the time of movement of the focusing lens unit. The zoom lens system of the present invention, in order from an object side to an image side, includes a first lens unit G08-05-2010
20100195206IMAGE STABILIZING DEVICE AND CAMERA - An image stabilizing device of the present invention includes: a correction lens holding member 08-05-2010
20120307367Zoom Lens System, Imaging Device and Camera - A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having positive optical power; a second lens unit having negative optical power; a third lens unit having positive optical power; and a subsequent lens unit, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit, the second lens unit, and the third lens unit are moved along an optical axis to perform magnification change, wherein the third lens unit has at least two air spaces, and the conditions: −4.912-06-2012
20120307366Zoom Lens System, Imaging Device and Camera - A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having positive optical power; a second lens unit having negative optical power; a third lens unit having positive optical power; and a subsequent lens unit, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit, the second lens unit, and the third lens unit are moved along an optical axis to perform magnification change, and wherein the third lens unit, in order from the object side to the image side, comprises: a third-a lens unit that, at the time of retracting, escapes along an axis different from that at the time of image taking; and a third-b lens unit that moves in a direction perpendicular to the optical axis to optically compensate image blur.12-06-2012
20120099202Zoom lens and imaging apparatus - Provided is a zoom lens that has a plurality of lens groups and performs zooming by changing spaces between the plurality of lens groups. A final lens group closest to an image side includes, in order from an object side to an image side: a first partial lens group that has a negative refractive power; a second partial lens group that has a positive refractive power; and a third partial lens group that has a positive refractive power. Image blur is corrected by shifting the second partial lens group in a direction substantially perpendicular to an optical axis. Assuming that a focal length of the first partial lens group is fGF, a focal length of the second partial lens group is fGS, and a focal length of a whole lens system of the lens groups in a telephoto end state is ft, the following expressions are satisfied:04-26-2012
20120069441IMAGING LENS, OPTICAL APPARATUS EQUIPPED THEREWITH AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens, an optical apparatus equipped therewith, and a method for manufacturing the imaging lens are provided. The imaging lens includes a front lens group having negative refractive power disposed to the most object side and a rear lens group having negative refractive power, disposed to an image side of the front lens group and moving at least a portion thereof in a direction including a component substantially perpendicular to an optical axis. The rear lens group includes G03-22-2012
20080231955Image stabilizing actuator and camera furnished therewith - Problem: To provide an actuator capable of preventing damage to spherical bodies and their receiving surfaces when subjected to a shock force.09-25-2008
20080304154Voice Coil Module - The present invention relates to a voice coil module (VCM), and more particularly, to a VCM used for lens fixation and displacement measurement in order to prevent and control power consumption. Accordingly, in the VCM, power is not additionally consumed in order to maintain a specific position of the lens in a state that a focus of the lens is adjusted. Further, the lens is not moved and an optical axis is not distorted when a vibration occurs while an image is captured. Furthermore, the lens can be accurately controlled by measuring the present position of the lens.12-11-2008
20110317267TELEPHOTO ZOOM LENS - A telephoto zoom lens having four lens groups in a P-N-P-P configuration arranged sequentially from an object side. The first lens group includes a front group which is fixed when focusing and has a positive refractive power, and a rear group which moves when focusing and has a positive refractive power. The entire first lens group, including the front and rear groups, is fixed during zooming, and the second and third lens groups move during zooming. The second lens group compensates for shaking of an image plane caused by hand-shaking, by moving in a direction perpendicular to the optical axis, and satisfies the following condition:12-29-2011
20110317266IMAGE STABILIZING DEVICE AND CAMERA - An image stabilizing device of the present invention includes: a correction lens holding member 12-29-2011
20120008208Image Stabilization Device - An image stabilization device is disclosed. The image stabilization device includes a first linkage assembly and a first flexible element. The first linkage assembly is disposed on a frame. The first linkage assembly includes a first linkage which is disposed in a first direction. The first flexible element is capable of pressing an optical element to the first linkage so as to make the optical element move along the first direction.01-12-2012
20120057234VARIABLE POWER ZOOM LENS - The present invention is a variable power zoom lens that is suitable to APS-format single-lens reflex cameras. The zoom lens has the foremost or first lens group G03-08-2012
20120062994Zoom Lens System, Interchangeable Lens Apparatus and Camera System - A zoom lens system comprising a positive first lens unit, a positive second lens unit, and at least two subsequent lens units, wherein the first lens unit moves along an optical axis at the time of zooming, an interval between the second lens unit and one of the at least two subsequent lens units varies at the time of zooming or focusing, the first lens unit is composed of at least three lens elements, each of the first lens unit and the second lens unit includes at least one negative lens element, and the conditions: 0.008<(1/vd03-15-2012
20120062993ZOOM LENS - A zoom lens includes, sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a positive refractive power. Zoom is performed by moving the second and the third lens groups in a direction along an optical axis. The fourth lens group consists of, sequentially from the object side, a front group having a positive refractive power, an intermediate group configured by a cemented lens formed by a positive lens and a negative lens and having an overall refractive power that is negative, and a rear group having a positive refractive power. Blur is corrected by moving the intermediate group in a direction that is substantially orthogonal to the optical axis.03-15-2012
20120154913VIBRATION PROOF ZOOM LENS AND PHOTOGRAPHING APPARATUS HAVING THE SAME - In a vibration proof zoom lens 06-21-2012
20090135485Zoom lens and image capturing apparatus - The object of the present invention is to provide a zoom lens in which a lens group located in the vicinity of an aperture stop includes two subgroups and one of the subgroups is shifted so that an image is shifted. Thus, an increase in the size of lens groups including a shift lens group can be prevented. In addition, the sensitivity with respect to the axis tilt can be reduced while maintaining a sufficient distance between the two subgroups without increasing the size of the lens groups. Accordingly, a sufficient performance can be provided.05-28-2009
20120120492IMAGE STABILIZING APPARATUS THAT CORRECTS IMAGE BLUR CAUSED BY HAND SHAKE, LENS BARREL, AND OPTICAL APPARATUS - An image stabilizing apparatus includes a fixed member, a shift member that holds an image stabilizing lens and are movable in a plane orthogonal to an optical axis, a plurality of shift drivers that are disposed at positions different from each other in the plane orthogonal to the optical axis, a gel that is held by one of the shift member and the fixed member, and a protrusion that is provided on the other one of the shift member and the fixed member. Each of the plurality of shift drivers includes a magnet held by one of the shift member and the fixed member, a coil that is held by the other one of the shift member and the fixed member, and a yoke that is held by the other one of the shift member and the fixed member, and a portion of the protrusion is immersed in the gel.05-17-2012
20120162768Zoom Lens System, Imaging Device and Camera - A zoom lens system comprising: a first lens unit having negative optical power; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein the first to third lens units are individually moved along an optical axis to vary magnification in zooming, each lens unit includes at least one lens element that satisfies the conditions: nd≦1.67, vd<59 and 0.00006-28-2012
20120314291Large Aperture Zoom Optical System and Image Pickup Apparatus - A large aperture zoom optical system and an image pickup apparatus have a five-lens-group arrangement of positive-negative-positive-negative-positive refractive powers. At the time of zooming, the fifth lens group is fixed, and at least the second lens group, the third lens group and the fourth lens group are moved. The third lens group for use in focusing is composed of a single lens element.12-13-2012
20100182696LENS BARREL AND OPTICAL APPARATUS INCLUDING THE SAME - The lens barrel has an image blur correction function for correcting an image blur, including: a movable member movable in a direction orthogonal to an optical axis while holding a lens and a driving magnet; and a fixed member for positioning the movable member in an optical axis direction and holding a driving coil and a magnetic member, in which: the driving magnet and the magnetic member constitute a driving portion for moving the movable member in the direction orthogonal to the optical axis; and in a plane orthogonal to the optical axis, a width of the magnetic member in a direction orthogonal to a direction of driving the movable member is larger than a width of the driving magnet in the direction orthogonal to the direction of driving the movable member.07-22-2010
20090059374Image stabilizing device - An image stabilizing device is provided, in a video camera, with a compensating part 2 having movable prisms 03-05-2009
20090059373Actuator for linear motion and tilting motion - There is provided an actuator used in an optical system comprising a housing, a carrier disposed at least partly inside the housing, and a plurality of linear motion transducers coupled to the carrier and substantially evenly spaced around the carrier within the housing. Each linear motion transducer is able to produce linear motion when energized displacing the carrier relative to the housing to produce linear motion, tilting motion, or both of the carrier.03-05-2009
20120257278Optics with Simultaneous Variable Correction of Aberrations - The invention refers to an optical system comprising at least two optical elements of which at least one is movable relative to the other in a direction perpendicular to the optical axis of the optical system, wherein the combination of optical elements is adapted to correct variable aberrations of at least two different orders simultaneously of which the degree of correction depends on the relative position of the optical elements. This optical system is adapted to correct aberrations which are variable and dependent on the position of the lens with respect to the subject/imaging plane. Further the optical system is adapted to correct aberrations varying along with defocus of the system. These aberrations may include second order aberrations, meaning defocus and astigmatism, third-order aberrations, meaning comas and trefoils, fourth-order aberrations, for example, spherical aberration, and further higher-order aberration terms.10-11-2012
20120229900FIXED FOCUS LENS - A fixed focus lens includes an M group that is disposed at a center of the optical system and has a positive refractive power; an F group that is disposed farther on the image plane side than the M group, has a negative refractive power, and is moved along the optical axis during focusing; a V group that is disposed farther on the object side than the M group, has a negative refractive index, and is moved in a direction orthogonal to the optical axis during vibration control; and an FC group that is disposed farther on the object side than the V group and has a positive refractive power. The V group is configured by a single lens element, and during focusing, at least the FC group and the M group are fixed.09-13-2012
20120229902Zoom Lens System, Imaging Device and Camera - A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having negative optical power; a second lens unit having positive optical power; a third lens unit having negative optical power; and a subsequent lens unit containing at least a fourth lens unit, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, intervals between the individual lens units vary and the fourth lens unit is fixed relative to an image surface, and wherein the conditions: vd09-13-2012
20080297901ZOOM LENS SYSTEM, OPTICAL APPARATUS, AND METHOD FOR FORMING AN IMAGE - Providing a zoom lens system having a high zoom ratio being compact with high optical performance. The system includes, in order from an object along an optical axis, a first lens group G12-04-2008
20090141352LIQUID OPTICS IMAGE STABILIZATION - A lens system suitable for use with a camera is disclosed. The lens system employs liquid optics to provide stabilization of an image. A pair of liquid lens cells provides stabilization of the image. A second pair of liquid lens cells may provide stabilization in another direction. The two pairs of liquid cells may provide stabilization in any direction.06-04-2009
20100232020Zoom lens and imaging apparatus - A lens includes a front group including a plurality of lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.09-16-2010
20120092768LENS DRIVING DEVICE, AUTOFOCUS CAMERA, AND CAMERA-EQUIPPED MOBILE TERMINAL - In a lens driving device of the present invention, each magnet is provide to face an outer circumferential face of a first coil, and face a second coil at a position at which the second coil is provided. A first spring member and a second spring member are configured by a plurality of six springs separated from each other, each coil wire end of the first coil and the two of the second coils being connected to a different spring, respectively, and when moving a lens support (04-19-2012
20100202053Zoom lens and image pickup apparatus - A zoom lens includes, in order from an object side to an image side, a positive refractive, fixed first lens unit; a negative refractive second lens unit movable mainly for zooming; a positive refractive, fixed third lens unit; a positive refractive fourth lens unit movable for focal-position correction and focusing performed in response to zooming; and a positive refractive fifth lens unit. The fifth lens unit includes, in order from the object side to the image side, a negative refractive, fixed sub-unit; and a positive refractive sub-unit movable substantially perpendicularly to an optical axis. An image formed on an image surface is movable substantially perpendicularly to the optical axis by moving the movable sub-unit substantially perpendicularly to the optical axis. An aperture stop is provided on the object side of the third lens unit. The third lens unit includes a positive refractive sub-unit and a negative refractive sub-unit.08-12-2010
20120140327ZOOM LENS SYSTEM - A zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group, in that order from the object side, wherein upon zooming from the short focal length extremity to the long focal length extremity, the distance between the first lens group and the second lens group decreases, and the distance between the second lens group and the third lens group increases. The second lens group includes a positive first sub-lens group and a negative second sub-lens group, in that order from the object side. The second sub-lens group is a focusing lens group which is moved along the optical axis direction during a focusing operation. The following condition (06-07-2012
20130016428LENS HOLDER DRIVING DEVICE INCLUDING FRACTURE PREVENTING MEMBER FOR SUSPENSION WIRESAANM SUGAWARA; MasayoshiAACI TokyoAACO JPAAGP SUGAWARA; Masayoshi Tokyo JPAANM Moriya; AkihiroAACI TokyoAACO JPAAGP Moriya; Akihiro Tokyo JPAANM Sato; KeiichiAACI TokyoAACO JPAAGP Sato; Keiichi Tokyo JPAANM Ariji; MakotoAACI TokyoAACO JPAAGP Ariji; Makoto Tokyo JPAANM Ajiki; SatoshiAACI TokyoAACO JPAAGP Ajiki; Satoshi Tokyo JP - A lens holder driving device includes an auto-focusing lens holder driving portion moving a lens holder holding a lens barrel along an optical axis, and an image stabilizer portion stabilizing image blurred by moving the auto-focusing lens holder driving portion in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The image stabilizer portion includes: a fixed portion disposed apart from the auto-focusing lens holder driving portion in the direction of the optical axis; a plurality of suspension wires having first end portions fixed to the fixed portion at outer regions thereof, extending along the optical axis, having second end portions fixed to the auto-focusing lens holder driving portion, and swingably supporting the auto-focusing lens holder driving portion in the first direction and the second direction; and a fracture preventing member preventing the suspension wires from fracturing.01-17-2013
20130016427LENS HOLDER DRIVING DEVICE CAPABLE OF AVOIDING DELETERIOUS EFFECT ON HALL ELEMENTSAANM SUGAWARA; MasayoshiAACI TokyoAACO JPAAGP SUGAWARA; Masayoshi Tokyo JP - An AF unit of a lens holder driving device includes a lens holder, a focusing coil, a permanent magnet having a plurality of permanent magnet pieces having first surfaces opposed to the focusing coil, a magnet holder holding the permanent magnet, and first and second leaf springs supporting the lens holder in a direction of an optical axis shiftably. An image stabilizer portion includes a fixed portion disposed near the second leaf spring, a supporting member swingably supporting the AF unit with respect to the fixed portion, an image stabilizer coil having a plurality of image stabilizer coil portions disposed so as to oppose to second surfaces of the plurality of permanent magnet pieces that are perpendicular to the first surfaces, and a plurality of Hall elements. Each Hall element is disposed at a position where the image stabilizer coil portion is separated into a plurality of coil parts.01-17-2013
20130176620IMAGE STABILIZING APPARATUS, LENS BARREL, AND OPTICAL APPARATUS - An image stabilizing apparatus includes a shift member holding a lens, a first driver moving the shift member in a first direction in a plane orthogonal to an optical axis, and a second driver moving the shift member in a second direction in the plane orthogonal to the optical axis. The first driver includes a first magnet, a first coil, and a first yoke in order in an optical axis direction, the second driver includes a second magnet, a second coil, and a second yoke in order in the optical axis direction, the first yoke has a protrusion that protrudes in the first direction at least one of end portions extending in a direction orthogonal to the first direction, and the second yoke has a protrusion that protrudes in the second direction at least one of end portions extending in a direction orthogonal to the second direction.07-11-2013
20130170040LENS MODULE INCLUDING VOICE COIL MOTOR AND IMAGE SENSOR MODULE - A lens module includes an image lens module and a voice coil motor (VCM) supported on the image lens module. The image lens module includes a seat and a spring element. The seat includes a top surface and a bottom surface opposite to the top surface and defines a notch on the top surface. The spring element is received in the notch, and part of the spring element protruding out of the notch. The VCM includes a lower plate supported on the top surface and the part of the spring element protruding out of the notch. Optical axes of the image lens module and the VCM are aligned with each other by pressing the spring element.07-04-2013
20080218861Zoom lens capable of image stabilization and imaging apparatus - A zoom lens capable of image stabilization is provided and includes: in order from the object side, a positive first group fixed in variable magnification, a negative second group having a variable magnification function, a positive third group fixed in variable magnification, and a positive fourth group having a correction function for an image plane variation depending upon variable magnification and a focusing function. In the third group, there are arranged a positive 3a-th group, a negative 3b-th group, and a positive 3c-th group in this order from the object side. Blurring of a taken image caused by a vibration of this variable magnification optical system is corrected by moving the 3b-th group in a direction approximately orthogonal to the optical axis. Further, a specific conditional expression relating to power of the third group and a specific conditional expression relating to a power distribution of lens groups of the third group G09-11-2008
20130114144ZOOM LENS AND PHOTOGRAPHING APPARATUS INCLUDING THE SAME - A zoom lens and a photographing apparatus including the same. The zoom lens includes, in an order from an object side to an image side: a front lens group having a negative refractive power; an aperture stop; and a rear lens group having a positive refractive power, wherein the front lens group includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a negative refractive power, and the third lens group includes at least one positive lens and one negative lens and performs focusing, and the rear lens group includes at least two lens groups that are moved during zooming and have a positive refractive power, wherein at least one of the lenses of the two lens groups perform hand shake correction.05-09-2013
20130141789VIBRATION CORRECTING DEVICE, LENS BARREL, AND OPTICAL DEVICE - An optical device with an imaging device for forming an image of a subject with a lens device, including a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch and yaw direction drive units for driving the movable member in the pitch and yaw directions within the optical axis orthogonal plane, respectively. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes.06-06-2013
20080198464Shake reduction apparatus - Herein disclosed is a shake reduction apparatus, comprising a movable-side unit having a movable-side frame provided with a camera unit including a lens and an image sensor, and a movable-side shaft having a spherical surface as an extremity surface thereof; a stationary-side unit having a stationary-side frame provided with a stationary-side shaft having an extremity formed as a spherical surface coming into contact with the extremity of the movable-side shaft, to which the movable-side unit is attached; linear actuators disposed between the movable-side frame and the stationary-side frame to drive the movable-side unit to rotate about two orthogonal axes; a movement detection unit for detecting a movement of a camera about the two orthogonal axes; and a controller for controlling the linear actuators to cause the movable-side unit to move so as to cancel the movement of the camera when the movement detection unit detects the movement of the camera.08-21-2008
20080198463ZOOM LENS SYSTEM AND OPTICAL APPARATUS USING THE SAME - Providing a zoom lens system with a vibration reduction function excellently correcting aberrations with accomplishing compact, lightweight, and slim upon being accommodated, and to provide an optical apparatus using the zoom lens system. The system consists of, in order from an object, a first group having negative power, a second group having positive power. Upon zooming from a wide-angle end to a telephoto end, a distance between the first group and the second group decreases. The first group consists of, in order from the object, a first lens having negative power and a second lens having positive power. The second group consists of, in order from the object, a third lens having positive power, a fourth lens having negative power, and a fifth lens having positive power. An image blur is corrected by shifting the second group as a whole in a direction substantially perpendicular to the optical axis.08-21-2008
20080198462IMAGE STABILIZATION UNIT, IMAGE STABILIZATION DEVICE, AND IMAGING APPARATUS - By regulating movement of first and second arms 08-21-2008
20110249336OPTICAL APPARATUS INCLUDING AN IMAGE STABILIZING APPARATUS - An image stabilizer includes: an optical system movable in a plane perpendicular to an optical axis (“orthogonal plane”) and correcting image blur; a movable member holding the optical system and movable relative to a fixed member in an orthogonal plane; a guide guiding the movable member while preventing from rotating in an orthogonal plane; three first balls rollably interposed between the fixed and guide members; two second balls rollably interposed between the guide and movable members; one third ball rollably interposed between the fixed and movable members; a biasing unit biasing the movable member toward the fixed member; and a drive unit driving the movable member relative to the fixed member in two directions perpendicular to the optical axis, wherein in an orthogonal plane, two of the first balls are rollable only in first direction; the second balls are rollable only in second direction different from the first direction.10-13-2011
20130050828LENS HOLDER DRIVING DEVICE INCLUDING DAMPER COMPOUND SUPPRESSING UNDESIRED RESONANCE - A lens holder driving device includes a lens holder moving portion, a fixed member, suspension wires, and a damper compound. In the lens holder moving portion, a lens holder moves in an optical axis and in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The fixed member is disposed apart from the lens holder moving portion in the direction of the optical axis. The suspension wires have first end portions fixed to the fixed member at outer regions thereof, extending along the optical axis, having second end portions fixed to an elastic member mounted to the lens holder moving portion, and swingably supporting the lens holder moving portion in the first direction and the second direction. The damper compound is disposed so as to enclose at least one suspension wire and suppresses undesired resonance in the lens holder moving portion.02-28-2013
20130182326Lens Barrel For Zoom Lens System - The lens barrel assembly suitable for a zoom lens comprises a pedestal barrel member secured to a mount member; a fixed barrel member secured in position closer to an object to the pedestal barrel member and having longitudinal grooves defined therein; a focus cam barrel member, a focus interlocking plate, and a first cam barrel member, each disposed inside the fixed barrel member; a second cam barrel member disposed inside any of the focus cam barrel member, the focus interlocking plate, and the first cam barrel member; a third cam barrel member disposed outside the fixed barrel member; an automatic focusing unit secured to an outer surface of the pedestal barrel member; and an anti-vibration unit disposed inside the pedestal barrel member and at least partially or completely overlapping the automatic focusing unit when the lens barrel assembly takes the position at the wide-angle end.07-18-2013
20130201559Lens Drive Device - A lens drive device may include a first holding body, a second holding body, a fixed body which holds the second holding body, a first drive mechanism to drive the first holding body, a second drive mechanism to drive the second holding body, a third drive mechanism structured to drive the second holding body in a different direction than the second drive mechanism, an elastic member having a fixed part which is fixed to the second holding body and a deformable part, and plural wires in a substantially straight line shape with one end side fixed to the deformable part and the other end side fixed to the fixed body.08-08-2013

Patent applications in class By movable refractive structure