With Variable Magnification (e.g., Zoom Type) Patents (Class 359/676)
  • Patent number: 10955644
    Abstract: A zoom optical system includes a front-side lens unit, an intermediate lens unit, and a rear-side lens unit. The front-side lens unit includes a first front unit and a second front unit, and a distance between the first front unit and the second front unit is wider at a telephoto end than at a wide angle end. The intermediate lens unit includes a first intermediate unit and a second intermediate unit, and a distance between the first intermediate unit and the second intermediate unit is narrower at the telephoto end than at the wide angle end. A distance between the second intermediate unit and a lens unit adjacent to the second intermediate unit varies. The second intermediate unit moves at the time of focusing, and the following conditional expressions (1) and (2) are satisfied: 0.9?LTLT/LTLW?1.17??(1) 4.2?KMBT?20.0??(2).
    Type: Grant
    Filed: December 23, 2018
    Date of Patent: March 23, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuteru Kawamura, Yasuharu Yamada, Toyoki Kon, Yuki Kubota
  • Patent number: 10948708
    Abstract: The objective optical system for an endoscope includes a negative front group, an aperture stop, and a positive rear group that are arranged in this order from an object side. The front group includes only a cemented lens in which a negative first lens, a negative second lens, and a positive third lens are cemented in this order from the object side, as a lens. The rear group includes only a cemented lens in which include a positive fourth lens, a positive fifth lens, and a negative sixth lens are cemented in this order from the object side, as a lens. Conditional expressions are satisfied.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: March 16, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Tomoyuki Baba
  • Patent number: 10928799
    Abstract: Systems, methods, and apparatus are disclosed for machining a part. Methods include generating a first spatial representation identifying a first orientation of a machining tool, and mechanically coupling an end effector to the part at a first position, the end effector including the machining tool and a coupling tool. Methods include generating a second spatial representation identifying a second orientation of the machining tool relative to the part, the first and second spatial representations being generated based on images captured by at least one imaging device and measurements from a plurality of sensors. Methods include identifying a plurality of differences that result from the coupling and that include a rotational distance and translational distance, the identifying being based on a comparison of a first image and a second image. Methods include adjusting the machining tool to return the machining tool to the first orientation at the first position.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: February 23, 2021
    Assignee: The Boeing Company
    Inventors: Luke Fletcher, Phillip J. Crothers
  • Patent number: 10914935
    Abstract: The objective optical system 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 positive refractive power. Focusing is carried out by moving the second lens group. The third lens group includes a positive lens and a cemented lens, and the cemented lens includes a positive lens and a negative lens. A first sub-unit includes a lens positioned on the object side of a predetermined air space and a second sub-lens group includes a lens positioned on an image side of the predetermined air space. The predetermined air space is the maximum air space among the air spaces in the third lens group.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: February 9, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Hideyasu Takato
  • Patent number: 10908398
    Abstract: A variable focal length lens device includes: a lens system whose refractive index changes in accordance with an inputted drive signal; and a resonance-lock controller that locks the drive signal to a resonance frequency of the lens system. The resonance-lock controller tunes a frequency of the drive signal to a peak position of a voltage-current phase difference between a voltage of the drive signal and a drive current of the lens system, and raises or lowers the frequency of the drive signal in accordance with the drive current when the voltage-current phase difference changes.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: February 2, 2021
    Assignee: MITUTOYO CORPORATION
    Inventors: Shiro Igasaki, Nobuo Ohba, Yuki Kurahashi
  • Patent number: 10901187
    Abstract: An optical imaging lens including a first lens element to an eighth lens element arranged in sequence from an object side to an image side along an optical axis is provided. The first lens element has positive refracting power. At least one of the object-side surface and the image-side of the second lens element is an aspheric surface. At least one of the object-side surface and the image-side of the third lens element is an aspheric surface. At least one of the object-side surface and the image-side of the fourth lens element is an aspheric surface. The object-side surface and the image-side of the fifth lens element are both aspheric surfaces. The object-side surface and the image-side of the sixth lens element are both aspheric surfaces. An optical axis region of the image-side surface of the seventh lens element is concave. An optical axis region of the object-side surface of the eighth lens element is concave.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: January 26, 2021
    Assignee: GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD.
    Inventors: Jia-Sin Jhang, Maozong Lin, Feng Li
  • Patent number: 10866385
    Abstract: An optical system is provided and includes a fixed part, a first optical member holder, a second optical member holder and a first driving assembly. The first optical member holder is configured to hold a first optical member and is disposed over the fixed part. The second optical member holder is configured to hold a second optical member and is movably connected to the first optical member holder. The first driving assembly is configured to drive the first optical member holder to move relative to the fixed part.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: December 15, 2020
    Assignee: TDK Taiwan Corp.
    Inventors: Chao-Chang Hu, Chih-Wei Weng, Shao-Kuang Huang, Sin-Jhong Song
  • Patent number: 10824059
    Abstract: A first optical group that forms an intermediate image and a second optical group that enlarges and projects the intermediate image formed by the first optical group satisfy a variety of conditions. Therefore, the overall length of the entire lens system of the projection system is reduced in a linear arrangement, or the distance between the first optical group and the second optical group is increased and an optical path deflector that deflects the optical path is disposed at the middle of the optical path between the first and second optical groups to fold the optical path.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: November 3, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Nobutaka Minefuji
  • Patent number: 10816777
    Abstract: In the imaging optical system that consists of a first optical system and a second optical system in order from a magnified side, and has an intermediate image formed between the first optical system and the second optical system, a focus group moving during focusing is included between a most magnified side of the first optical system and a position at which a principal ray of light having a maximum angle of view and an optical axis of the first optical system intersect each other, and a predetermined conditional expression relating to the focus group is satisfied.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: October 27, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Masaru Amano
  • Patent number: 10802241
    Abstract: A lens apparatus includes a fixed barrel, a first optical element, a rotary barrel configured to be rotated relative to the fixed barrel about an optical axis of the first optical element and move the first optical element; a contact member including rolling members respectively arranged at positions about the optical axis. The rolling members are in contact with the rotary barrel. The contact member is restricted in rotation relative to the fixed barrel about the optical axis. A pressing member presses the contact member toward the rotary barrel. A second optical element is different from the first optical element. An operation member is configured to be rotated relative to the fixed barrel about the optical axis and move the second optical element. A space, through which the operation member passes, is formed between two of the rolling elements in a circumference of the contact member.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: October 13, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takeru Yuri
  • Patent number: 10768396
    Abstract: A zoom lens includes a front unit having a negative refractive power; and a rear unit having a positive refractive power, which includes an aperture stop. The front unit includes a first negative refractive power lens, a second negative refractive power lens, and a third positive refractive power lens. The first lens is nearest to an object, and has a meniscus shape with a convex surface directed toward the object side, and the second lens is on an image side of the first lens, and has a meniscus shape with a convex surface directed toward the object side. The rear unit includes a first lens unit A and a second lens unit B, wherein when zooming from a wide angle end to a telephoto end, a distance between the front unit and the rear unit narrows, and a distance between the first lens unit A and the second lens unit B changes. The first lens unit A includes a first sub-lens unit having a positive refractive power, the aperture stop, and a second sub-lens unit.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: September 8, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuteru Kawamura, Takashi Fujikura, Kenichi Nagasawa, Masaru Morooka
  • Patent number: 10768476
    Abstract: A display device is provided. The display device includes a display panel including a light-exiting side, and a birefringent structure disposed at the light-exiting side of the display panel. A plane of the birefringent structure is parallel to a plane of the display panel. When the display device is in a display stage, the birefringent structure and the display panel are configured with a relative rotation at a plane parallel to the plane of the birefringent structure.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 8, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yingteng Zhai, Jialing Li
  • Patent number: 10746975
    Abstract: An objective lens for a still or film camera includes a first and second lens-element arrangement, and a wavefront manipulator. The first and second lens-element arrangement are spaced mutually apart along an optical axis of the lens such that an interstice is present therebetween. The wavefront manipulator is in the interstice and includes two optical components displaceable counter to one another, perpendicular to the optical axis, and which each include a free-form surface. The wavefront manipulator has a zero position, wherein the optical components do not cause any image aberrations in the imaging properties of the objective lens, and effective positions, wherein the optical components are displaced counter to one another, out of the zero position perpendicular to the optical axis, and wherein the optical components cause a spherical aberration in the imaging properties of the objective lens.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: August 18, 2020
    Assignees: Carl Zeiss AG, Carl Zeiss Microscopy GmbH
    Inventors: Marco Pretorius, Vladan Blahnik
  • Patent number: 10739568
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens having negative refractive power. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fourth lens has a specific Abbe's number. The fifth lens has a specific Abbe's number.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: August 11, 2020
    Assignee: KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • Patent number: 10690895
    Abstract: A zoom lens includes in order from an object 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, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit includes a positive lens, and the second lens unit includes a positive lens, and the following conditional expressions (1), (2), (3), and (4) are satisfied: ?0.015?Tp2G_min_p?0.015??(1), 70.3??d1G_max_p??(2), 1.76?nd2G_max_p?2.3??(3), and 0.3?|f2/f3|?0.9??(4).
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 23, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Toyoki Kon, Kazuteru Kawamura, Yasuharu Yamada, Tetsuya Yanai, Daichi Murakami
  • Patent number: 10684455
    Abstract: A zoom optical system comprising, in order from an object side: a first lens group (G1) having positive refractive power; a front-side lens group; an intermediate lens group having positive refractive power; and a rear-side lens group. The front-side lens group is composed of one or more lens groups and has a negative lens group. At least part of the intermediate lens group is a focusing lens group. The rear-side lens group is composed of one or more lens groups. Upon zooming, the first lens group and the intermediate lens group are moved with respect to an image surface, a distance between the first lens group and the front-side lens group is changed, and a distance between the intermediate lens group and the rear-side lens group is changed. The following conditional expression is satisfied: 0.000<?Fw<0.800 where ?Fw denotes a lateral magnification of the focusing lens group in the wide-angle end state.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: June 16, 2020
    Assignee: Nikon Corporation
    Inventors: Satoru Shibata, Tomoyuki Sashima
  • Patent number: 10678034
    Abstract: A variable magnification optical system includes, in order from an object: a first lens group (G1) having a negative refractive power; a second lens group (G2); a third lens group (G3); a fourth lens group (G4) having a negative refractive power; and a fifth lens group (G5) having a positive refractive power, the system performing varying magnification by changing the distance between the first and second lens groups, the distance between the second and third lens groups, the distance between the third and fourth lens groups, and the distance between the fourth and fifth lens groups, and the fourth lens group including a 42nd lens group (G42) configured to be movable so as to have a component in a direction orthogonal to an optical axis and a 41st lens group (G41) disposed at an object-side of the 42nd lens group.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 9, 2020
    Assignee: Nikon Corporation
    Inventor: Atsushi Shibayama
  • Patent number: 10678031
    Abstract: Provided is a zoom lens comprising, 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, and a rear unit including at least one lens unit, in which the second lens unit is configured to move during zooming, an interval between each pair of adjacent lens units is changed during zooming, the rear unit has a positive refractive power over an entire zoom range, and the first lens unit includes a diffraction surface formed at a cemented surface of two optical elements cemented to each other. A focal length of the first lens unit, an amount of movement of the second lens unit during zooming from a wide angle end to a telephoto end and a back focus at the wide angle end are appropriately set.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: June 9, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yu Inomoto
  • Patent number: 10670832
    Abstract: Provided is a zoom lens including, 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; a fourth lens unit having a negative refractive power; a fifth lens unit having a negative refractive power; and a sixth lens unit having a positive refractive power, wherein an interval between adjacent lens units is changed during zooming, wherein the first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end, and wherein a focal length of the first lens unit, a focal length of the sixth lens unit, and a back focus at the wide angle end are appropriately set.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 2, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takeo Mori
  • Patent number: 10663697
    Abstract: An optical path folding element includes an incident surface, a path folding surface and an exiting surface. The incident surface allows a light ray to pass into the optical path folding element. The path folding surface folds the light ray from the incident surface. The exiting surface allows the light ray to pass through and depart from the optical path folding element. At least one of the incident surface and the exiting surface includes an optical effective portion and at least one engaging structure symmetrically disposed around the optical effective portion. The engaging structure includes an annular surface portion and an inclined surface portion. The annular surface portion surrounds the optical effective portion, and the inclined surface portion is located between the annular surface portion and the optical effective portion. An angle between the annular surface portion and the inclined surface portion satisfies a specific condition.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 26, 2020
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Ming-Ta Chou
  • Patent number: 10656398
    Abstract: A zoom lens includes a front-side lens unit, a rear-side lens unit, and an aperture stop. The front-side lens unit includes either one lens unit having a negative refractive power or two lens units having a negative refractive power, and has a negative refractive power as a whole. The rear-side lens unit is disposed on an image side of the front-side lens unit, and has a positive refractive power as a whole at a telephoto end. The rear-side lens unit includes a plurality of lens units, and includes an object-side positive lens unit having a positive refractive power which is disposed nearest to object and the following conditional expressions (1), (2), and (3) are satisfied: 1.2?|MGB_t|?6??(1), 10??dGn_min_p?27??(2), and ?0.03?TpGn_min_p?0.014??(3).
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: May 19, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuteru Kawamura, Toyoki Kon
  • Patent number: 10649235
    Abstract: An optical element switchable to a first state and a second state includes a first material and a second material, each of optical properties of the first and second materials changes between the first state and the second state, and refractive indices of the first and second materials and Abbe's numbers of the first and second materials satisfy a predetermined relationship.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 12, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Satoshi Ito
  • Patent number: 10627609
    Abstract: The present invention provides a zoom lens that can perform favorable correction of chromatic aberration in the entire zoom range, and can have higher performance and a smaller size than conventional ones; and an imaging apparatus including the zoom lens. To achieve the object, provided are a zoom lens and an imaging apparatus including the zoom lens. The zoom lens includes, in order from an object side: a positive first lens group G1; a negative second lens group G2; and a GR group including one or more lens groups. In the zoom lens, changing focal length is performed by varying intervals between the lens groups. The GR group has at least two cemented surfaces having negative refractive power, convex lenses GpH and GpL satisfying predetermined conditional expressions. An aperture stop is arranged in the first lens group or after. The zoom lens satisfies predetermined conditional expressions.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 21, 2020
    Assignee: Tamron Co., Ltd.
    Inventor: Keisuke Okada
  • Patent number: 10620426
    Abstract: An image pickup apparatus includes an image forming optical system which includes an aperture stop that sets an axial light beam, and a diffracting optical surface disposed at a position different from a position where the aperture stop is disposed, and an imager which is disposed on an image side of the image forming optical system, and has a light-receiving surface which is not flat and is curved to be concave toward the image forming optical system, wherein the diffracting optical surface satisfies the following conditional expression (1). 0.1<|DSD/TL|?1.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 14, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Takahiro Amanai, Ayami Imamura
  • Patent number: 10620410
    Abstract: A zoom lens system according to an example embodiment includes, sequentially from an object side to an image plane side along an optical axis, a first lens group having a negative refractive power and including at least one doublet lens, the doublet lens including two lenses, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group and the second lens group are configured to move along the optical axis to perform zooming and focusing, and the zoom lens system satisfies 3.0<Vdf/Vdr<6.0, where Vdf denotes an Abbe number of a lens arranged at the object side in a doublet lens, and Vdr denotes an Abbe number of a lens arranged at the image plane side in a doublet lens.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 14, 2020
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventor: Jin Ho Jang
  • Patent number: 10585267
    Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a rear-side lens unit, and an aperture stop. The second lens unit includes a first sub-unit having a negative refractive power and a second sub-unit having a negative refractive power, and the rear-side lens unit includes a third lens unit having a positive refractive power which is disposed nearest to object. The first lens unit includes at least a negative lens and a positive lens and the first sub-unit includes at least a negative lens and a positive lens. The third lens unit includes at least two lens components having a positive refractive power, and the following conditional expressions (1) and (2) are satisfied: 61??d1G_max_p??(1), and ?0.03?Tp2Ga_min_p?0.0165??(2).
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 10, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Kazuteru Kawamura
  • Patent number: 10578844
    Abstract: Comprising a first lens group G1 having positive refractive power, disposed at the most object side, and an image side lens group disposed at a side closer to an image than the first lens group G1, upon zooming, at least a distance between the first lens group G1 and the image side lens group being varied, the image side lens group comprising a vibration reduction lens group GVR which is moved so as to have a component in a direction perpendicular to the optical axis and a focusing lens group GF which is moved along the optical axis upon focusing, thereby providing a variable magnification optical system which has a higher optical performance, an optical apparatus and a method for manufacturing a variable magnification optical system.
    Type: Grant
    Filed: January 29, 2017
    Date of Patent: March 3, 2020
    Assignee: Nikon Corporation
    Inventor: Tomoki Ito
  • Patent number: 10571784
    Abstract: A projection optical device includes a fourth lens group movable along an optical axis, a fifth lens group provided in a position maintained within the projection optical device, a fourth lens frame holding the fourth lens group and having cam pins, a guide tube having a rectilinear groove, the cam pins inserted into the rectilinear groove, and a cam tube rotated with respect to the guide tube to guide the cam pins with the rectilinear groove and the cam groove, and moving the fourth lens frame along the optical axis, wherein the cam pins are formed on an upstream side in an optical path of the fourth lens group in a direction along the optical axis, and the fifth lens group is provided on the upstream side in the optical path of the fourth lens group.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: February 25, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takuya Hatano, Naoto Takehana
  • Patent number: 10574935
    Abstract: A projection optical system includes a first lens unit and a second lens unit interposing an intermediate image therebetween. The first lens unit includes two aspherical lenses (a first lens unit first lens and a first lens unit ninth lens), and a first lens unit cemented lens. The projection optical system satisfies the following Conditional Expressions (1) and (2) when the number of lens elements of the first lens unit and the number of lens elements of the second lens unit are set to be Num1 and Num2, respectively. In addition, refractive indexes and Abbe numbers of three lenses constituting the first lens unit cemented lens satisfy a predetermined conditional expression. Num2?7??(1) 1.5?Num1/Num2?2.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 25, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koji Shiokawa
  • Patent number: 10571661
    Abstract: An image capturing optical assembly includes, in order from an object side to an image side, a first lens group, a second lens group and a third lens group, wherein the first lens group includes a first lens element and a second lens element, the second lens group includes a third lens element, a fourth lens element and a fifth lens element, and the third lens group includes a sixth lens element, a seventh lens element and an eighth lens element. At least one surface of at least one of the lens elements of each lens group is aspheric. At least one surface of at least one of the lens elements includes at least one inflection point.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: February 25, 2020
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Hsin-Hsuan Huang
  • Patent number: 10551593
    Abstract: An optical lens including a first lens group and a second lens group is provided. The first lens group is arranged between a magnified side and a minified side. The first lens group includes a lens closest to the magnified side. A refractive power of the lens is negative, and at least one surface of the lens is an aspherical surface. The second lens group is arranged between the first lens group and the minified side. A distance between the first lens group and the second lens group is smaller than 0.7 millimeter. The optical lens is complied with conditions of 0.53<EFL/IH<0.7, FOV?150 degrees, and F?2.8, where EFL is an effective focal length, IH is an image height on an imaging plane at the minified side, FOV is a maximum field of view, and F is f-number.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 4, 2020
    Assignee: Young Optics Inc.
    Inventors: Kuo-Chuan Wang, Chen-Cheng Liao
  • Patent number: 10551600
    Abstract: A zoom lens which include, in order from an object side: a unit A including a unit configured to move for zooming; an aperture stop; and a positive unit B configured not to move for zooming, in which the unit B includes front and rear units with an air interval therebetween longest between the aperture stop and an image plane of the zoom lens, in which the front unit consists of, in order from the object side, a positive first front unit, a negative second front unit configured to move perpendicular to an optical axis of the zoom lens to perform image stabilization, and a third front unit having a positive refractive power, in which a lateral magnification of the second front unit, focal lengths of the first front unit, the second front unit, and the third front unit are set appropriately.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: February 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masakazu Kodaira
  • Patent number: 10545334
    Abstract: The purpose of the present invention is to provide an optical device capable of rotationally adjusting a lens system with a flare-cut member incorporated therein. For this purpose, the flare-cut member according to the present invention is characterized by including a light shield surface for shielding the light flux incident on the periphery of a lens, and an opening formed in the light shield surface and causing the light flux incident on a lens element to pass therethrough, wherein the opening is formed in a rotationally symmetrical shape.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: January 28, 2020
    Assignee: Maxell, Ltd.
    Inventors: Masahiko Yatsu, Shuji Kato
  • Patent number: 10527827
    Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a positive refractive power and remains stationary during zooming, a second lens group that moves during zooming, and a subsequent lens group. The first lens group has a negative lens at a position closest to the object side. The subsequent lens group has, successively in order from a position closest to the image side, a final positive lens group that remains stationary during zooming, a positive lens group that moves during zooming, a stop, and a negative lens group that moves during zooming. The stop moves integrally with the positive lens group during zooming. The stop first moves to the object side, and reversely moves during zooming from the wide-angle end to the telephoto end. Predetermined conditional expressions are satisfied.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 7, 2020
    Assignee: FUIIFILM Corporation
    Inventors: Yasutaka Shimada, Taiga Noda
  • Patent number: 10502936
    Abstract: A first lens group (G1) having a positive refractive power, a second lens group (G2) having a negative refractive power, a third lens group (G3) having a positive refractive power, a fourth lens group (G4) having a negative refractive power, and a fifth lens group (G5) having a positive refractive power are arranged in order along an optical axis from an object, and distances between each lens group change when zooming, and the first lens group (G1) is composed of two lenses, and the following expression (1) is satisfied: 0.07<D1/fw<0.46 where D1 denotes a thickness on the optical axis of the first lens group (G1), and fw denotes a focal length of the zoom lens (ZL) in a wide-angle end state.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: December 10, 2019
    Assignee: Nikon Corporation
    Inventor: Atsushi Suzuki
  • Patent number: 10495861
    Abstract: Provided is a zoom lens including, in order from an object side to an image side: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; a third lens unit having a negative refractive power; a fourth lens unit having a positive refractive power; and a rear lens group including at least one lens unit, the first lens unit, the second lens unit, the third lens unit, the fourth lens unit, and the rear lens group having an interval between each pair of adjacent lens units changed for zooming. The third lens unit is configured to move for focusing, and at least a part of the fourth lens unit forms a lens system IS, which is configured to move in a direction including a component of a direction perpendicular to an optical axis for image stabilization.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: December 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shigenobu Sugita
  • Patent number: 10481371
    Abstract: The imaging lens consists of a first lens group fixed to an image plane during focusing, an aperture stop, a second lens group having a positive refractive power which moves along an optical axis during focusing, and a third lens group fixed to the image plane during focusing, in order from an object side. The first lens group includes at least two negative lenses among three lenses from a lens closest to the object side to a third lens, a negative lens of the at least two negative lenses closest to the object side being a negative meniscus lens with its convex surface toward the object side, the second lens group includes at least three lenses, and the third lens group includes at least three lenses.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 19, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Hiroki Saito, Shunsuke Miyagishima
  • Patent number: 10484615
    Abstract: A camera head is provided that includes a first lens group, including at least one deformable lens with variable curvature, a second lens group moveable relative to the first lens group, and an image sensor for capturing a light beam received from an endoscope, wherein the first lens group is fixed relative to the image sensor and the aperture of the first lens group is smaller than the aperture of the second lens group. A method is also provided for capturing of an image utilizing a zoom system including a variable power first lens group and a movable second lens group.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: November 19, 2019
    Assignee: KARL STORZ Imaging, Inc.
    Inventor: George E. Duckett, III
  • Patent number: 10451859
    Abstract: A first lens group (G1) having positive refractive power, a front-side lens group (GX), an intermediate lens group (GM) having positive refractive power, and a rear-side lens group (GR) are arranged in order from an object side. The front-side lens group (GX) is composed of one or more lens groups and has a negative lens group At least part of the intermediate lens group (GM) is a focusing lens group (GF). The rear-side lens group (GR) is composed of one or more lens groups. Upon zooming, the first lens group (G1) is moved with respect to an image surface, a distance between the first lens group (G1) and the front-side lens group (GX) is changed, a distance between the front-side lens group (GX) and the intermediate lens group (GM) is changed, and a distance between the intermediate lens group (GM) and the rear-side lens group (GR) is changed.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: October 22, 2019
    Assignee: Nikon Corporation
    Inventors: Satoru Shibata, Tomoyuki Sashima
  • Patent number: 10437023
    Abstract: Compact folded lens systems are described that may be used in small form factor cameras. Lens systems are described that may include three lens elements with refractive power, with a light folding element such as a prism, located between a first lens element on the object side of the lens system and a second lens element, that redirects the light refracted from the first lens element from a first axis onto a second axis on which the other lens elements and a photosensor are arranged. The lens systems may include an aperture stop located behind the front vertex of the lens system, for example at the first lens element, and an optional infrared filter, for example located between the last lens element and a photosensor.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 8, 2019
    Assignee: Apple Inc.
    Inventors: Yuhong Yao, Yoshikazu Shinohara
  • Patent number: 10429621
    Abstract: An optical imaging lens including a first lens element to an eighth lens element arranged in sequence from an object side to an image side along an optical axis is provided. The first lens element has positive refracting power. At least one of the object-side surface and the image-side of the second lens element is an aspheric surface. At least one of the object-side surface and the image-side of the third lens element is an aspheric surface. At least one of the object-side surface and the image-side of the fourth lens element is an aspheric surface. The object-side surface and the image-side of the fifth lens element are both aspheric surfaces. The object-side surface and the image-side of the sixth lens element are both aspheric surfaces. An optical axis region of the image-side surface of the seventh lens element is concave. An optical axis region of the object-side surface of the eighth lens element is concave.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: October 1, 2019
    Assignee: GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD.
    Inventors: Jia-Sin Jhang, Maozong Lin, Feng Li
  • Patent number: 10379379
    Abstract: Ophthalmic lenses providing an extended depth of focus include anterior and posterior faces, wherein at least part of the anterior or posterior face has a curvature based upon the summation of a cubic and/or pentic phase profile, and methods relating to same. The ophthalmic lens may be a contact lens, an intraocular lens (IOL), or other corrective lens.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: August 13, 2019
    Assignee: AMO Groningen B.V.
    Inventors: Marrie H. Van Der Mooren, Hendrik A. Weeber, Patricia Ann Piers
  • Patent number: 10362223
    Abstract: The present disclosure provides an imaging device including a wide-angle camera and a telephoto camera. A field of view of the telephoto camera is located in a field of view of the wide-angle camera, the telephoto camera includes a telephoto lens. The telephoto lens includes: at least one first lens element, a light reflecting element and at least one second lens element arranged sequentially from an object side to an image side along a light axis. The light reflecting element is configured to make the light axis to reflect from a first direction to a second direction. An electronic device including the imaging device is further provided. In the imaging device and the electronic device above, the light axis of the telephoto camera is reflected, lowering a height of the telephoto lens and a height of the telephoto camera.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: July 23, 2019
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Yi Wei
  • Patent number: 10359611
    Abstract: A zoom lens has in order from the object side, at least a foremost, first lens group having positive refractive power, a succeeding, second lens group having negative refractive power, a third lens group having positive refractive power, and a rearmost lens group having negative refractive power. The zoom lens meets requirements as defined in formulas regarding a displacement of the first lens group, a focal length of the zoom lens at the wide-angle end, a focal length of the zoom lens at the telephoto end, a focal length of the first lens group, and a focal length of the third lens group.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 23, 2019
    Assignee: TAMRON CO., LTD.
    Inventors: Yoshito Iwasawa, Jun Takahashi
  • Patent number: 10353173
    Abstract: A miniature wide-angle imaging lens has a miniaturization ratio, of a total track length from the center of a first surface to a focal plane by an image circle diameter, with a value less than 3.0. The imaging lens includes, starting from an object side of the lens, a first group of at least three optical elements, a second group including an aperture stop and an optical element immediately in front of or behind the aperture stop, and a third group of at least two optical elements.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: July 16, 2019
    Assignee: 6115187 Canada, Inc.
    Inventors: Jocelyn Parent, Simon Thibault, Patrice Roulet, Hu Zhang, Pascale Nini, Pierre Konen
  • Patent number: 10353186
    Abstract: Provided is a zoom lens, including, in order from an object side to an image side: a first lens unit to a fourth lens unit having negative, positive, negative, and negative refractive powers; and a rear lens group. In the zoom lens, an interval between each pair of adjacent lens units is changed during zooming, the rear lens group has a positive refractive power over an entire zoom range, the third lens unit is configured to move in an optical axis direction during focusing, and each of a focal length of the zoom lens at a wide angle end (fw), and a focal length of the third lens unit (f3) is appropriately set.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 16, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Suguru Inoue
  • Patent number: 10342417
    Abstract: An image-capturing element includes: a first substrate; a plurality of first pixels disposed in a matrix on the first substrate, each of the first pixels having a first light receiving element; a second substrate disposed at a position overlapping the first substrate and on a side opposite to a light receiving surface side of the first substrate when viewed from the light receiving surface side of the first substrate; a plurality of second pixels disposed in a matrix on the second substrate, each of the second pixels having a second light receiving element and a Fabry-Perot filter disposed on the light receiving surface side of the second light receiving element; and a plurality of optical systems disposed corresponding to the plurality of second pixels between the first substrate and the plurality of second pixels, the optical systems having negative refractive power.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 9, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Yasuhiro Fukunaga
  • Patent number: 10324279
    Abstract: On embodiment of the invention discloses an optical lens including five lens group and an aperture stop. Each lens group includes at least one lens with refractive power, and the aperture stop is fixed in a position between a second lens group and a third lens group. Further, a distance between a first lens group and a fifth lens group remains fixed during zooming or focusing, and respective distances of the second lens group and a fourth lens group relative to the fifth lens group vary during zooming or focusing.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 18, 2019
    Assignee: YOUNG OPTICS INC.
    Inventors: Yuan-Hung Su, Bing-Ju Chiang, Kuo-Chuan Wang
  • Patent number: 10302926
    Abstract: An arrangement for lightsheet microscopy. In the arrangement, a detection objective includes a first adaptive optical detection correction element arranged in the beam path or which can be introduced into the latter. Alternatively, or in addition, an illumination objective includes a first adaptive optical illumination correction element arranged in the beam path or which can be introduced into the latter. With the two correction elements, aberrations which occur because of the inclined passage through boundary surfaces of the separating layer system of light to be detected or of light for illuminating the sample can be reduced for a predetermined range of detection angles (?) or of illumination angles (?) and/or for a predetermined range of the thickness of the at least one layer of the separating layer system.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: May 28, 2019
    Assignee: Carl Zeiss Microscopy GmbH
    Inventor: Marco Pretorius
  • Patent number: 10295801
    Abstract: The imaging lens includes, in order from an object side, 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 negative refractive power. In a case of changing focus from an object at infinity to an object at the closest distance, the first lens group is immovable, and the second lens group and the fourth lens group are moved in an optical axis direction along different trajectories from each other. The third lens group is moved in a direction intersecting the optical axis to perform camera shake correction.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 21, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Taiga Noda