By Movable Reflective Structure Patents (Class 359/555)
  • Patent number: 10732429
    Abstract: There is disclosed an image acquisition device comprising a reflection unit configured to reflect a light incident in a first direction toward a second which is perpendicular to the first direction; a lens unit comprising one or more lenses provided behind the reflection unit on an optical passage, the lens unit configured to form the optical passage in the second direction; a refraction unit provided between the lens unit and the reflection unit and varying a refraction direction as one surface is pressed; a pressing unit forming a pressing surface which contacts with one surface of the refraction unit; a first drive unit configured to tilt the pressing surface with respect to a first direction vertical axis; and a driver configured to drive the first drive unit in response to vibration.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: August 4, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyungjoo Kang, Kwanhyung Kim, Dongryeol Lee, Salkmann Ji, Samnyol Hong
  • Patent number: 10656381
    Abstract: The present disclosure provides a dual-lens module driving device, which comprises a shell, wherein the shell comprises a top wall and a side wall, the top wall is provided with a first opening and a second opening, a base and a support frame, the support frame is provided with a first accommodating cavity and a second accommodating cavity, a first lens tube, a second lens tube, a first lens set, a second lens set, a first focusing coil set, a second focusing coil set, a first magnetic steel set, a second magnetic steel set, a circuit board, an optical anti-shaking coil set, a first elastic sheet set, a second elastic sheet set, a translational suspension system and a connecting terminal.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: May 19, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventor: Leping Dong
  • Patent number: 10564442
    Abstract: An apparatus for driving an optical-reflector for optical image stabilization (OIS) with a multi-axial structure includes a support frame having a first groove rail formed therein, an optical-reflector disposed on the support frame to reflect light to a lens, a middle frame having a first guide rail corresponding to the first groove rail and a second groove rail formed therein, a base frame having a second guide rail formed corresponding to the second groove rail, a first ball disposed between the first groove rail and the first guide rail, a second ball disposed between the second groove rail and the second guide rail, a first driving unit configured to move the support frame in a first direction on the basis of the middle frame, and a second driving unit configured to move the middle frame in a second direction, different from the first direction, on the basis of the base frame.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: February 18, 2020
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Jin Soo Seol, Kyoung Yong Lee, Chul Soon Park
  • Patent number: 10520747
    Abstract: A lens module including a light path altering element, a first lens assembly, a first sensor and at least one group of electronically controlled deformation element is provided. An image beam incident to the optical path altering element is diverted from a first light transmission path to a second light transmission path. The first lens assembly is disposed between the light path altering element and the first sensor. The at least one group of electronically controlled deformation element is connected to the light path altering element, and deformation of the at least one group of electronically controlled deformation element makes the light path altering element to move.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: December 31, 2019
    Assignee: LUXVISIONS INNOVATION LIMITED
    Inventors: Yu-Pin Wang, Shih-Chieh Yen
  • Publication number: 20140063473
    Abstract: A pico-projector device includes a light source operable to generate a light beam as a function of an image to be generated, a mirror mechanism operable to direct the light beam towards a displaying surface, and a driving circuit that supplies driving signals for controlling movement of the mirror mechanism. The driving circuit includes a compensation stage that receives angular velocity signals from a gyroscopic sensor coupled to the pico-projector device and generates the driving signals as a function of the angular velocity signals, thereby stabilizing the image projected on the displaying surface with respect to undesired movements of the pico-projector device.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 6, 2014
    Applicant: STMicroelectronics S.r.l.
    Inventor: Fabio Pasolini
  • Patent number: 8615143
    Abstract: Introduced is an optical arrangement for varying an imaging ratio and/or a refractive power including at least one optical axis, having at least two optical elements, which can be pivoted into and/or pivoted to and/or switched into and/or switched to the optical path, which encompass in each case a refractive power and an optical axis and the optical axes of which can in each case be made to be substantially congruent with the optical axis of the arrangement or are substantially congruent with the optical axis of the arrangement. The optical path between the optical elements, which can be pivoted into and/or pivoted to and/or switched into and/or switched to, undergoes at least one change in direction and/or vergence.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: December 24, 2013
    Assignee: Future Optics GBR
    Inventor: Tatiana Maiorova
  • Publication number: 20120128339
    Abstract: An anti-shake device for use in an optical system comprises a biaxial rotating element and a electromagnetic driving module. The biaxial rotating element is made by grooving a thin resilient plate to form a special multiple-frame structure. The biaxial rotating element, when driven by the electromagnetic driving module, makes limited pivotal movement about two axes so as to provide shake compensation. The electromagnetic driving module, composed of a plurality of permanent magnets and a plurality of coils, is supported and positioned by an inner support frame and an outer support frame, both of which have uniquely designed structures. The resultant anti-shake device is structurally simple, easy to assemble, compact in size, and relatively low-cost.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 24, 2012
    Inventor: Chao Chang Hu
  • Publication number: 20120113514
    Abstract: A handheld projector is provided with an image stabilization system that acts to reduce (or even eliminate) unwanted motion of the projected image due to unintended movement of the projector. In certain preferred embodiments, a solid-state motion sensor provides input to an image stabilization system that computes a corrective signal. In embodiments having optical image stabilization, the corrective signal is supplied to a mechanical actuator that moves one or more optical elements within the projector. Other embodiments have electronic image stabilization. In these embodiments, the corrective signal from the image stabilization system is used by the image generator to shift the image so as to compensate for movement of the projector.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 10, 2012
    Applicant: POLYCOM, INC.
    Inventor: Jeffrey Rodman
  • Publication number: 20110226955
    Abstract: Imaging systems in which an undedicated optical component—i.e., a component that would be present in the system even in the absence of image stabilization—is configured to undergo corrective motion and/or other correction of image data, and thus to function as a stabilization component. The stabilization component may be a mirror and/or a lens, and a positioner may be provided to tilt, rotate, and/or otherwise precisely adjust the position and orientation of the stabilization component to improve image resolution, compensate for platform motions such as platform vibration, and/or improve image tracking. Because an undedicated optical component functions as the stabilization component, the stabilization occurs upstream, rather than downstream, from separation (if any) of the incoming image data into two or more beams.
    Type: Application
    Filed: January 4, 2011
    Publication date: September 22, 2011
    Applicant: FLIR SYSTEMS, INC.
    Inventors: Clifford J. Luty, Bruce A. Dickerson, Bruce Ellison, John L. Miller
  • Publication number: 20110181955
    Abstract: An optical system with optical image stabilization of the present invention comprises at least one movement determination unit determining a movement of the optical system, a control circuitry generating a movement compensation signal using the movement information of the optical system from the movement determination unit, and a Micro-Electro Mechanical System (MEMS) unit made by microfabrication technology and controlled by the control circuitry with the movement compensation signal 32C to stabilize an image of an object formed on the image plane. The MEMS unit comprises a substrate, an MEMS mirror movably connected to the substrate and configured to have a motion comprising a rotation, and at least one actuation unit configured to actuating the MEMS mirror.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 28, 2011
    Applicants: STEREO DISPLAY, INC., ANGSTROM, INC.
    Inventors: Gyoung ll Cho, Hye Young Kim, Cheong Soo Seo
  • Publication number: 20110051243
    Abstract: A prism type lens structure is provided. A plurality of piezoelectric elements are mounted to a reflection prism. The deformation of piezoelectric elements corresponding to the applied voltages controls the deflection angle of the reflection prism to compensate the unsteady optical path caused by vibration. Therefore, the image of light signals may be controlled to precisely and steadily focus in an image sensor element to reduce the vibration due to hand shake.
    Type: Application
    Filed: December 23, 2009
    Publication date: March 3, 2011
    Inventor: Yu-Hsiu SU
  • Patent number: 7860384
    Abstract: An image stabilizer that stabilizes images by moving a correcting lens for stabilizing images formed by a lens system in a first direction and a second direction which are perpendicular to an optical axis of said lens system and which are perpendicular to each other, includes a driver which is provided at one side of the correcting lens and which moves the correcting lens in the first direction and the second direction.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: December 28, 2010
    Assignee: SONY Corporation
    Inventor: Tatsuyuki Takahashi
  • Publication number: 20100226010
    Abstract: The present invention provides an optical system comprising, at least one lens group for projecting an image on an image sensing means, an optical path being defined between a light entrance of said optical system and said image sensing means, a reflective optical element having convergent or divergent optical power and being located in said optical path, and means for moving the reflective optical element in response to unwanted movement of the imaging system to eliminate or mitigate the negative imaging effect of the said unwanted movement.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 9, 2010
    Inventors: Kai Cheong Kwan, Tao Pan, Sio Kuan Lam
  • Patent number: 7771058
    Abstract: A portable projection display apparatus (100) of the present invention comprises: a projection device (8) including an image forming means (2) for forming image light and an optical lens system (7) which projects the image light, obtained by the image forming means, toward a projection surface (S1); a swinging detecting means (12) for detecting a relative swinging of the projection device (8) with respect to the projection surface (S1); and a correcting means (11) for correcting a projection direction of the image light with respect to the projection surface (S1) in the projection device (8) in accordance with an output value of the swinging detecting means (12), so as to cancel a movement of the image light in the projection direction that is caused by the swinging.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: August 10, 2010
    Assignee: Panasonic Corporation
    Inventor: Naohide Wakita
  • Patent number: 7693404
    Abstract: A first holder is disposed to move in a direction of a first optical axis of a refractive optical system in which object light incident from a front thereof along the first optical axis is reflected by a prism in a direction along a second optical axis extending vertically to form an image on a CCD solid-state image-pickup element.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: April 6, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Hiroyuki Otaka
  • Patent number: 7684685
    Abstract: An image stabilizer that stabilizes images by moving a correcting lens for stabilizing images formed by a lens system in a first direction and a second direction which are perpendicular to an optical axis of said lens system and which are perpendicular to each other, includes a driver which is provided at one side of the correcting lens and which moves the correcting lens in the first direction and the second direction.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: March 23, 2010
    Assignee: Sony Corporation
    Inventor: Tatsuyuki Takahashi
  • Publication number: 20100067113
    Abstract: A computer readable storage medium includes executable instructions to receive a request for tree node information and apply one or more tree node parameter limits to the request. The tree node parameter limits include a tree node level limit and a sibling node count limit. The computer readable storage medium further includes executable instructions to receive tree node objects corresponding to the tree node parameter limits, add the tree node objects to a dynamically extended tree node data structure and display a first portion of the tree node objects.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 18, 2010
    Inventor: Matthew John Harrison
  • Patent number: 7598981
    Abstract: An anti-shake apparatus comprises a movable-unit, a fixed-unit, a signal-processor, and a controller. The movable-unit has an imaging-device and is movable in first-and second-directions, supported by the fixed-unit. The fixed-unit has a horizontal-hall-element for detecting a first-location, and a vertical-hall-element for detecting a second-location. The signal-processor outputs a first-signal specifying the first-location, from output signals of the horizontal-hall-element, to a first A/D-converter of the controller, and outputs a second-signal specifying the second-location, from output signals of the vertical-hall-element, to a second A/D-converter of the controller. The controller calculates the first-location in an A/D-converting-operation for the first-signal, and the second-location in an A/D-converting-operation for the second-signal.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: October 6, 2009
    Assignee: Hoya Corporation
    Inventors: Yukio Uenaka, Shuzo Seo
  • Publication number: 20090237793
    Abstract: Disclosed are, inter alia, optical components that include an optical element (e.g., mirror) and at least three active-isolation mounts mounting the optical element to a frame (e.g., optical barrel or optical frame). An active-isolation mount has a non-contacting actuator connecting a respective location on the optical element to the frame and provides movability of the respective location relative to the frame in at least one direction. At least one displacement sensor is associated with each respective location on the optical element. The displacement sensors are sensitive to displacements of the respective locations in at least one respective direction and reference the displacements to an absolute reference. The actuators and sensors are connected to a servo control loop to provide feedback control.
    Type: Application
    Filed: October 30, 2008
    Publication date: September 24, 2009
    Inventors: Shiang-Lung Koo, Yi-Ping Hsin, Hideyuki Hashimoto, Bausan Yuan, Pai-Hsueh Yang
  • Publication number: 20090219497
    Abstract: The disclosure relates to an optical device, such as for microlithography, that includes an optical module and a supporting structure. The disclosure also relates to an optical module that includes an optical element and a carrier structure for the optical element. the carrier structure can be connected to the optical element via at least one holding element. The carrier structure can be fixed to the supporting structure and produced, for example, from a material having a coefficient of thermal expansion ?<0.2*10?6K?1.
    Type: Application
    Filed: February 23, 2009
    Publication date: September 3, 2009
    Applicant: Carl Zeiss SMT AG
    Inventors: Armin Schoeppach, Jens Kugler
  • Patent number: 7567390
    Abstract: 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, any one of the lens units includes a lens element having a reflecting surface for bending a light beam from an object, and any one of the lens units, any one of the lens elements, or 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.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: July 28, 2009
    Assignee: Panasonic Corporation
    Inventors: Keiki Yoshitsugu, Takakazu Bito
  • Publication number: 20090122406
    Abstract: An optical image stabilizer is used to compensate for an unwanted movement of an imaging system, such as a camera. The camera has a folded optics system using a triangular prism to fold the optical axis. Two actuators are used to rotate the prism around two axes in order to compensate for the yaw motion and pitch motion of the camera. The prism can be mounted on a gimballed system or joint and two actuators are operatively connected to the gimballed system in order to rotate the prism. Alternatively, the folded optics system uses a mirror to fold the optical axis, and two motors are used to rotate the prism.
    Type: Application
    Filed: February 6, 2006
    Publication date: May 14, 2009
    Inventors: Jarkko Rouvinen, Petteri Kauhanen
  • Patent number: 7502051
    Abstract: An anti-shake apparatus of a photographing apparatus comprises a movable unit and a fixed unit. The movable unit has an imaging device and is movable in first and second directions. The fixed unit slidably supports the movable unit in both the first and second directions. The movable unit has a hall-element unit. The magnetic-field change-detecting unit has a horizontal hall-element which is used for detecting a position of the movable unit in the first direction as a first location, and a vertical hall-element which is used for detecting a position of the movable unit in the second direction as a second location. Application of voltage to input terminals of the horizontal hall-element and the vertical hall-element is performed during a position detecting operation of the movable unit, and is stopped at a time other than that for the position detecting operation.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: March 10, 2009
    Assignee: Hoya Corporation
    Inventor: Yukio Uenaka
  • Patent number: 7495693
    Abstract: An anti-shake-apparatus comprises a movable-unit, a fixed-unit, a signal-processor, and a controller. The movable-unit has an imaging-device and is movable in first-and second-directions. The fixed-unit has a hall-element-unit. The controller controls the movable-unit, the fixed-unit, and the signal-processor, and has first- and second-A/D-converters. The hall-element-unit has first and second horizontal-hall-elements for detecting a first-location, and first and second vertical-hall-elements for detecting a second-location. The movable-unit has a magnetic-field-generating unit having a coil for detecting the first- and second-locations. The signal-processor outputs a first-signal, specifying the first-location from the horizontal-hall-elements, to the first-A/D-converter, and a second-signal, specifying the second-location from the vertical-hall-elements, to the second-A/D-converter.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: February 24, 2009
    Assignee: Hoya Corporation
    Inventor: Yukio Uenaka
  • Patent number: 7479973
    Abstract: An image producing apparatus includes a photoconductor. A photonic energy device is positioned adjacent the photoconductor. A reflecting member is located adjacent the photonic energy device, whereby at least a portion of the reflecting member is operable to deform upon application of an electrical voltage in order to direct photonic energy from the photonic energy device towards the photoconductor with the reflecting member. The reflecting member may direct the photonic energy from the photonic energy device towards the surface of the photoconductor in order to discharge portions of the surface of the photoconductor to produce an image.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: January 20, 2009
    Assignee: Dell Products L.P.
    Inventors: James Arthur Brewer, Kevin Enders, Stanley Osgood
  • Publication number: 20090003812
    Abstract: An image stabilizer includes a fixed member, a first movable member, a second movable member, and a position sensor. The fixed member includes a first actuator arranged near a first side of an imaging device in parallel with the first side. The first movable member includes a second actuator arranged near a second side perpendicular to the first side in parallel with the second side and moves, when driven by the first actuator, in the direction of the first side. The second movable member has the imaging device mounted thereon and moves, when driven by the second actuator, in the direction of the second side. The position sensor detects the relative position of the imaging device moved by the first and second actuators. The first and second actuators are located near an intersection of the longitudinal axes of them not to interfere with each other.
    Type: Application
    Filed: June 10, 2008
    Publication date: January 1, 2009
    Applicant: OLYMPUS IMAGING CORP.
    Inventor: Sumio Kawai
  • Patent number: 7460776
    Abstract: A stage apparatus includes a stationary support member, a movable stage plate supported by the stationary support member to be movable in a plane relative to the stationary support member, at least one magnetic force generator which is provided integral with the stationary support member, and at least one coil which is mounted on the movable stage plate and receives a magnetic force generated by the magnetic force generator to produce a driving force for driving the movable stage plate in the plane. At least one hole in which the coil is fixedly fitted is formed on the movable stage plate.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 2, 2008
    Assignee: Hoya Corporation
    Inventors: Ken Hirunuma, Shigeo Enomoto
  • Publication number: 20080158679
    Abstract: Imaging systems in which an undedicated optical component—-i.e., a component that would be present in the system even in the absence of image stabilization—is configured to undergo corrective motion and/or other correction of image data, and thus to function as a stabilization component. The stabilization component may be a mirror and/or a lens, and a positioner may be provided to tilt, rotate, and/or otherwise precisely adjust the position and orientation of the stabilization component to improve image resolution, compensate for platform motions, and/or improve image tracking. Because an undedicated optical component functions as the stabilization component, the stabilization occurs upstream, rather than downstream, from separation (if any) of the incoming image data into two or more beams.
    Type: Application
    Filed: March 29, 2006
    Publication date: July 3, 2008
    Inventors: Clifford J. Luty, Bruce A. Dickerson, Bruce Ellison, John L. Miller
  • Publication number: 20080123191
    Abstract: There is provided a zoom lens having, in an order of an object-to-image direction, a first lens group having a positive refractive power and fixed with respect to an image plane; a second lens group having a negative refractive power; a third lens group having a positive refractive power and fixed with respect to an optical axis direction; a fourth lens group having a positive refractive power; and a fifth lens group having a positive refractive power and fixed with respect to the optical axis direction. The fifth lens group is composed of a fifth-a lens group having a negative refractive power; a fifth-b lens group having a positive refractive power; and a fifth-c lens group having a positive refractive power, arranged in the order of the object-to-image direction.
    Type: Application
    Filed: September 25, 2007
    Publication date: May 29, 2008
    Applicant: Sony Corporation
    Inventors: Mitsuhiro Suzaki, Yusuke Nanjo, Atsuo Minato, Shinichi Arita
  • Patent number: 7330312
    Abstract: An image blur compensation device for use with an image capture device including an imaging optical system and an imaging unit which converts a subject image captured on a light receiving surface thereof through the imaging optical system into an image signal. The compensation device includes a variable mirror which is provided on the optical axis of the imaging optical system and which has a displaceable reflective surface and an electrode to control the displacement of the reflective surface. A drive unit supplies the electrode with a drive signal to displace the reflective surface. And a compensation unit produces correction information to correct the drive signal.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: February 12, 2008
    Assignee: Olympus Corporation
    Inventor: Toru Hidaka
  • Patent number: 7305179
    Abstract: An anti-shake apparatus of a photographing apparatus comprises a movable unit, and a control apparatus. The movable unit has an imaging device, and can be moved in first and second directions. The control apparatus moves the movable unit to first, second, third, and fourth positions, and performs first, second, third, and fourth imaging operations, and a combination operation for obtaining an anti-shake image signal in which lag from hand-shake is corrected. In the first imaging operation, a first imaging position of a first photography frame in which lag corresponding to a first hand-shake quantity is corrected, is calculated, and a first image signal which is imaged at an overlapping area between an imaging field of the imaging device at the first position and the first photography frame, is obtained. In the combination operation, the anti-shake image signal is obtained by combining the first, second, third, and fourth image signals.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 4, 2007
    Assignee: PENTAX Corporation
    Inventor: Takahiro Ogawa
  • Patent number: 7253834
    Abstract: An image pickup apparatus comprising a first lens unit which comprises at least a negative lens element and at least a positive lens element and has negative refractive power, a second lens unit which has positive refractive power, and an optical path bending reflecting optical element which has a variable reflecting surface disposed in an airspace between a most object side lens component of the first lens unit and a most object side lens component of the second lens unit. This image pickup apparatus changes a magnification by moving the second lens unit along an optical axis and corrects a deviation of an image location by varying a shape of the variable reflecting surface of the reflecting optical element.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: August 7, 2007
    Assignee: Olympus Corporation
    Inventors: Shinichi Mihara, Masahito Watanabe, Tomoyuki Satori, Toyoharu Hanzawa, Shigeru Kato
  • Patent number: 7126110
    Abstract: The present invention relates to an optronic passive surveillance device, especially for infrared surveillance. It comprises a front optic (1) of given useful instantaneous field, means (2) for scanning a scene with a given total field of observation, means (3) for forming the image of the scene and means (4) for detecting said image. According to the invention, the detection means (4) comprise a two-dimensional matrix detector (41), the field of the detector along each of the dimensions being greater than or equal to said useful instantaneous field of the front optic along said dimension, and allow the acquisition, for each elementary area of the scene corresponding to the useful instantaneous field of the front optic, of N subimages formed on said detector (N?1), with a given integration time for each subimage.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: October 24, 2006
    Assignee: Thales
    Inventors: Michel Papuchon, Philippe Antier, Ludovic Perruchot, Alain Verdaguer
  • Patent number: 7057818
    Abstract: A zoom lens which has a high variable magnification ratio and high optical performance and an optical apparatus having the zoom lens are provided. A zoom lens according to an embodiment of the present invention comprises, in order from an object side, a first, second, third, and a fourth lens unit respectively having positive, negative, positive and positive optical powers. For zooming from the wide angle end to the telephoto end, the first lens unit is moved to an object side, the second lens unit is moved to an image plane side, the third lens unit is moved to the object side, and the fourth lens unit is moved to the object side. The third lens unit is movable in a direction perpendicular to the optical axis to correct an image blur.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: June 6, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Hamano, Norihiro Nanba
  • Patent number: 6950245
    Abstract: The invention relates to an optical system or apparatus such as a lens system capable of focus control and a variable-focus lens, which has reduced power consumptions, ensures noiseless operation and fast response and contributes to cost reductions for the reason of simplified structure. Specifically, the invention provides an optical apparatus comprising an element 409 having variable optical properties and an image plane 612. To correct the optical apparatus for movement of the image-formation surface of an optical system 614 in association with a change in the element 409 having variable optical properties, the image plane 612 is placed in the range of movement of the image-formation surface in association with the change in the element having variable optical properties.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 27, 2005
    Assignee: Olympus Corporation
    Inventors: Kimihiko Nishioka, Eiji Yasuda, Kentaro Sekiyama, Tetsuo Nagata
  • Patent number: 6943965
    Abstract: In a method for correcting oscillation-induced imaging errors in an objective, in particular a projection objective in microlithography for fabricating semiconductor elements, an at least first objective part and a second objective part are provided. In this case, the first objective part has a first optical axis and the second objective part has an optical axis which deviates from the first optical axis. Beam deflection takes place between the two objective parts via at least one optical beam deflection element. The oscillations occurring in the second objective part are measured and evaluated by means of a sensor system. The results are used as input data for a device, which adjusts the beam direction in the objective, in such a way that imaging errors occurring as a result of the oscillations of the second objective part are compensated for.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: September 13, 2005
    Assignee: Carl Zeiss SMT AG
    Inventors: Alexander Kohl, Hubert Holderer
  • Patent number: 6807007
    Abstract: An image-blur correcting viewing-optical system includes an objective optical system, an image-erecting optical system and an eyepiece optical system. The objective optical system includes a front lens group having a positive lens element, a negative lens element and a positive lens element, and a rear lens group constituting an image-blur correcting lens element which is driven in a direction perpendicular to the optical axis; and the image-blur correcting viewing-optical system satisfies the following condition: 0.5≦hc/hmax≦0.8  (1) wherein hc designates the radius of an axial open aperture of the first surface of the image-blur correcting lens element; and hmax designates the radius of an axial open aperture of the first surface of the front lens group of the objective optical system.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: October 19, 2004
    Assignee: PENTAX Corporation
    Inventor: Takaaki Yano
  • Patent number: 6795247
    Abstract: An optical instrument for observation includes, in order from the object side, an objective lens system having positive refractive power, an erecting optical system, and an ocular lens system having positive refractive power. When an anti-vibration mechanism is used to maintain the erecting prism at an orientation in space that is stabilized so as to prevent image degradation due to vibrations of the optical instrument for observation, the erecting prism is constructed to satisfy specified conditions so that ghost light is not generated and so that the optical instrument for observation may be compact.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: September 21, 2004
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Yukiko Nagatoshi
  • Patent number: 6741392
    Abstract: A stabilizer for an optical instrument, such as a pair of binoculars, including: a forehead mount and an adjustable mechanism for connecting the forehead mount to the optical instrument. The mechanism may include a bracket adapted for attachment to the optical instrument and a support between the forehead mount and the bracket.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: May 25, 2004
    Inventor: Andrew N. Fu
  • Patent number: 6738571
    Abstract: The lens device and the vibration-proof adapter include a lock mechanism with operational ease because a lock mechanism of a vibration-proof lens has a switch on a joint with a camera main body or a joint with the lens device. The lens device is connected by placing a hook, which is provided on a front end face of a camera main body, to a recess of a back end face. A slide pin is provided in the recess so as to slide, and is pressed inside by the hook. In synchronization with the slide pin pressed inside, a lock pin operates to move away from a holding member of a vibration-proof lens, and the vibration-proof lens is unlocked. The slide pin returns to an original protruding position to lock the vibration-proof lens again when the hook is detached from the recess.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: May 18, 2004
    Assignee: Fuji Photo Optical Co., Ltd
    Inventor: Toshiaki Takeda
  • Patent number: 6587271
    Abstract: An imaging lens, is formed of, in order from the object side, a zoom section for focusing and zooming, and a master section for imaging and vibration control. The master section is formed of, in order from the object side, a front lens group, and a rear lens group. The front lens group is afocal so that collimated light enters the rear lens group. The rear lens group includes, in order from the object side, a lens subgroup which is movable normal to the optical axis of the imaging lens for vibration control, and a lens subgroup for macro-imaging adjustment and tracking adjustment, which is movable along the optical axis. Preferably, a fixed lens subgroup is positioned between the lens subgroup for vibration control and the lens subgroup for macro-imaging adjustment and tracking adjustment.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Yoshikazu Shinohara
  • Patent number: 6576891
    Abstract: A scanning system (10) and a method permit scanning a desired field-of-view within a maximized field-of-regard at a constant speed without reversing the scan direction about a primary axis (38). The system includes a mirror (20) which rotates about the primary axis (38). The mirror (20) is supported for rotation about a flip axis (40) which is perpendicular to the primary axis (38). Rotation of the mirror (20) about the primary axis (38) is divided into a scan period during which the field-of-view is scanned by the mirror (20), and a flip period during which the mirror (20) rotates about the flip axis (40). The mirror (20) is mounted in a gimbal for independent rotation about a secondary axis (24) which is parallel to the primary axis (38).
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: June 10, 2003
    Assignee: Raytheon Company
    Inventor: David A. Ansley
  • Patent number: 6497365
    Abstract: An optical reader which is compatible with every environment irrespective of installation and usage environments, thereby enabling uniform manufacturing, satisfactory reading reliance, and operative safety and user-friendliness. The optical unit is mounted on the stage, and there is provided an inclination apparatus which inclines the stage at a desired angle. Thereby, without changing a preset optimal scanning pattern, only its emitting direction becomes changeable freely.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: December 24, 2002
    Assignee: Fujitsu Limited
    Inventors: Hiroaki Kato, Mitsuharu Ishii, Toshitaka Aoki
  • Patent number: 6466370
    Abstract: An image deviation correcting device and an optical apparatus having such a device. The device includes: a driven part to be driven so as to correct an image deviation; a holder for holding the driven part; a first linkage arranged perpendicular to the optical axis of the driven part, the first linkage having four arms connected in a parallelogram, one of the arms being secured to the holder; a middle part secured to opposite arm thereof; a second linkage overlapped with the first linkage in parallel relation thereto, the second linkage having four arms connected in a parallelogram, one of the arms being secured to the middle part; and a base part secured to opposite arm thereof. The one of the arms of the first linkage is generally perpendicular to the one of the arms of the second linkage.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: October 15, 2002
    Assignee: Minolta Co., Ltd.
    Inventors: Shigeru Wada, Junichi Tanii
  • Patent number: 6429980
    Abstract: In a lens barrel having a first holding tube holding a first optical system and a second holding tube holding a second optical system, support rollers are arranged at three parts on the periphery of each of the first and second holding tubes to restrain these optical systems from tilting. The positions of the support rollers are arranged to be respectively shifted from the centers of gravity of the holding tubes either forward or rearward in the direction of an optical axis.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: August 6, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masanori Ishikawa
  • Publication number: 20020080433
    Abstract: In a light unit that converts a false linear light into which a light from a point light source has been converted by a columnar light guide, into a planar light by a plate-shaped light guide, the point light source is arranged only at an end of the columnar light guide at which an angle between a longitudinal direction of the columnar light guide and ridge lines of recesses and projections forming a prism surface is obtuse. Thus, a positional relationship between the point light source and the ridge lines is set so that a main irradiation direction of band-shaped light emitted from the columnar light guide and which has been obtained by converting the light from the point light source to a false linear light is not substantially orthogonal to the ridge lines of the recesses and projections forming the prism surface of the plate-shaped light guide. Consequently, light obtained by totally reflecting this band-shaped light is unlikely to be viewed.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 27, 2002
    Applicant: NEC Corporation
    Inventor: Masatake Baba
  • Publication number: 20020044355
    Abstract: A digital projector that projects moving images from a data stream also generates black intervals selected to induce a stroboscopic effect in a viewer's eye. The black signals are interspaced with the images in a manner so as to simulate the operation of a standard movie projector thereby insuring that the effects of temporal and spatial artefacts normally associated with digital projectors are reduced.
    Type: Application
    Filed: August 30, 2001
    Publication date: April 18, 2002
    Inventor: Paul R. Klamer
  • Patent number: 6362918
    Abstract: A telescopic device comprises an eyepiece lens, an objective lens, a first plane mirror, a second plane mirror, and a roof reflecting mirror. The first optical axis located along the first plane mirror is parallel to the second optical axis located along the second plane mirror. The device includes a compensator for accidental image jitters comprising a pivot mechanism, an inertial sensor and a servo system for adjusting the plane mirror.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: March 26, 2002
    Inventor: Yishay Netzer
  • Publication number: 20010048558
    Abstract: A projector having a projection system includes a reflecting projection unit. The projection system has an image display device and a projection lens, which is provided with an optical axis. The reflecting projection unit includes a first mirror and a second mirror. The first mirror reflects an image from the projection lens according to a predetermined angle. The second mirror receives the image from the first mirror, and reflects it onto a screen. The invention has the advantages of increasing image offset and the zoom ratio of the projector.
    Type: Application
    Filed: May 7, 2001
    Publication date: December 6, 2001
    Applicant: Acer Communications and Multimedia, Inc.
    Inventor: Rung-De Lin
  • Patent number: 6226124
    Abstract: An angular positional data of binoculars in a lateral irection is calculated by integrating output of a gyro sensor. A positional data of correction lenses in the lateral direction is calculated by multiplying a driving step number of a rotor of a stepping motor which drives the correction lenses in the lateral direction, by a driving amount of the lens holding frame, which holds the correction lens, according to a one step rotation of the stepping motor. A difference between the angular positional data and the positional data of the correction lenses is calculated. If the difference is within a range from a positive threshold value to a negative threshold value, an electric power supply to a driving circuit of the stepping motor is stopped. With respect to a lengthwise direction, a similar operation to that of the lateral direction is performed.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 1, 2001
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Shigeo Enomoto, Shinji Tsukamoto