Other Than First Group Moves For Focusing (internal Focus Type) Patents (Class 359/684)
  • Patent number: 10620399
    Abstract: Provided are a zoom lens which can be configured to have a small size while ensuring a high zoom ratio and has high optical performance by satisfactorily correcting chromatic aberration, and an imaging apparatus including the zoom lens. The zoom lens consists of, in order from the object side, a first lens group G1 that has a positive refractive power and remains stationary during zooming, a plurality of movable lens groups that move during zooming; and a final lens group Ge that has a positive refractive power and remains stationary during zooming. At least one movable lens group has a negative refractive power. The movable lens group, which is closest to the object side and has a negative refractive power, has two or more negative lenses, and satisfies predetermined conditional expressions.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: April 14, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Masaru Yonezawa, Shinkichi Ikeda
  • Patent number: 10606037
    Abstract: The present disclosure discloses a camera optical lens, including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of glass material, the fourth lens is made of glass material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 31, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Kenji Oinuma, Lei Zhang, Yanmei Wang, Yuanshan Cui
  • Patent number: 10598909
    Abstract: A zoom lens includes in order from an object side to an image side, a positive first lens unit that is not moved for zooming, a negative second lens unit that is moved during zooming, at least one zooming lens unit that is moved during zooming, a stop, and a positive fixed lens unit that is not moved for zooming. The first lens unit includes in order from the object side to the image side, a first lens sub-unit that is not moved for focusing, a positive second lens sub-unit that is moved toward the object side when focusing to an object at short distance from an object at infinite distance, and a positive third lens sub-unit that is moved during focusing. The second lens sub-unit includes a negative meniscus lens having a convex surface facing the image side.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 24, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masakazu Kodaira
  • Patent number: 10567624
    Abstract: A control apparatus includes a controller configured to determine whether or not an interchangeable lens is in a static image based on an angular velocity signal output from an angular velocity detector configured to detect an angular velocity of a vibration of an interchangeable lens. The control apparatus receives, from the camera body, a command that transfers the interchangeable lens to a sleep state a predetermined time after the controller determines that the interchangeable lens is in the static state. The controller prohibits the camera body from transmitting the command that transfers the interchangeable lens to the sleep state, when the controller determines that a first offset in the angular velocity signal recorded in a recorder is to be updated.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: February 18, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Daisuke Hirai
  • Patent number: 10557943
    Abstract: Optical systems that may, for example, be used in light ranging and detection (LiDAR) applications, for example in systems that implement combining laser pulse transmission in LiDAR and that include dual transmit and receive systems. Receiver components of a dual receiver system in LiDAR applications may include a medium range (50 meters or less) receiver optical system with a medium entrance pupil and small F-number and with a medium to wide field of view. The optical system may utilize optical filters, scanning mirrors, and a nominal one-dimensional SPAD (or SPADs) to increase the probability of positive photon events.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: February 11, 2020
    Assignee: Apple Inc.
    Inventors: Robert S. Upton, Chandra S. Kakani, Alexander Shpunt, Yuval Gerson
  • Patent number: 10539785
    Abstract: An optical system includes an aperture stop, and an optical member that is removably insertable in an optical path defined by an object side and an image side of the optical system, the optical member is disposed on the image side of the aperture stop. In a first focus range between infinity and a first finite distance, the optical member is removed from the optical path. In a second focus range between a second finite distance shorter than the first finite distance and a third finite distance shorter than the second finite distance, the optical member is inserted in the optical path. The thickness of the optical member on the optical axis and the focal length of the optical member are suitably determined.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: January 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Aoki
  • Patent number: 10484845
    Abstract: An electronic notebook system is described that comprises a housing, a computing device, wireless interfaces, antennas, sensors, a touch display configured to receive input via a stylus and/or human digit input, the stylus comprising a pressure and/or an inclination sensor, a microphone, camera, the notebook system configured to provide a user condition interface, receive a user selection of a first user condition, provide an interface configured to receive user details, receive audible user details via the microphone, convert the audible user details received via the microphone to text, perform natural language processing to identify text keywords utilizing sentence segmentation, part-of-speech tagging, paraphrase recognition, and/or co-reference resolution, identify a condition based at least in part on the identified one or more keywords, dynamically generate an alert based at least in part on the identified condition, wirelessly transmit the generated alert to one or more destinations via at least a first
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: November 19, 2019
    Inventor: Karen Elaine Khaleghi
  • Patent number: 10466454
    Abstract: A zoom optical system includes, disposed in order from an object, a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive power, and a third lens group (G3) having positive refractive power, wherein at least a part of the second lens group (G2) or at least a part of the third lens group (G3) is configured to be movable, as a vibration-proofing lens group for correcting an image blur, so as to have a movement component in a direction perpendicular to an optical axis, and the following conditional expression is satisfied: 4.40<f1/(?f2)<8.00 where f1 denotes a focal length of the first lens group (G1), and f2 denotes a focal length of the second lens group (G2).
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: November 5, 2019
    Assignee: Nikon Corporation
    Inventors: Tomoki Ito, Hiroshi Yamamoto
  • Patent number: 10459207
    Abstract: A zooming optical system is provided, which is constituted by, in order from an object: 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 negative refractive power; and a fifth lens group having positive refractive power. In the zooming optical system, the first lens group is moved along the optical axis upon zooming, at least a part of the second lens group to the fifth lens group being moved so as to include a component orthogonal to the optical axis, and the following conditional expressions are satisfied: 4.41<f1/(?f2)<5.33 and 2.15<f1/f3<4.95, where f1 denotes a focal length of the first lens group, f2 denotes a focal length of the second lens group, and f3 denotes a focal length of the third lens group.
    Type: Grant
    Filed: July 26, 2015
    Date of Patent: October 29, 2019
    Assignee: Nikon Corporation
    Inventor: Tomoki Ito
  • Patent number: 10451858
    Abstract: 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, a fifth lens group are arranged in order from an object. Respective distances between the first and second lens groups, the second and third lens groups, the third and fourth lens groups, and the fourth lens and fifth lens groups change upon zooming, and a lens group arranged closest to an image is approximately fixed relative to an image surface upon zooming. The third lens group moves along the optical axis upon focusing, and the following expression (1) is satisfied: 0.480<f3/ft<4.000??(1) where ft denotes a focal length of the zoom optical system in a telephoto end state, and f3 denotes a focal length of the third lens group.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: October 22, 2019
    Assignee: Nikon Corporation
    Inventors: Akihiko Obama, Kensuke Uchida
  • Patent number: 10416412
    Abstract: A zoom image pickup apparatus includes a mount portion, a zoom lens which forms an image of light incident from the mount portion, and an image pickup element which is disposed at an image forming position. The zoom lens includes a plurality of lens unit, and a focusing lens unit, and the following conditional expressions (1) and (2) are satisfied: 1.5<fLt/fLw??(1), and |(yw7d??yw7d)/yw7d×100<0.66??(2).
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: September 17, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Keisuke Takada
  • Patent number: 10416421
    Abstract: Provided is a zoom lens, including, in order from an object side: a positive first lens unit; a negative second lens unit; an intermediate lens unit including at least one lens unit; a positive (N?1)-th lens unit; and a negative N-th lens unit, in which the (N?1)-th lens unit is configured to move for focusing, and in which a focal length fLM of the intermediate lens unit at a wide angle end, a focal length f(N?1) of the (N?1)-th lens unit, which consists of a single lens element, a focal length fN of the N-th lens unit, a distance DN on an optical axis from a lens surface closest to the object side of the N-th lens unit to a lens surface closest to the image side of the N-th lens unit, and a back focus BFw at the wide angle end are each appropriately set.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 17, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shunji Iwamoto
  • Patent number: 10338357
    Abstract: Composing, in order from an object side along the optical axis, a first lens group having positive refractive power, and at least one lens group; upon varying magnification, an interval between the first lens group and a lens group at an image side of the first lens group and adjacent thereto being varied, said first lens group comprising a focusing lens group which is moved along the optical axis for focusing and a vibration reducing lens group that is movable to include a component in a direction perpendicular to the optical axis, thereby providing a an excellent optical performance upon focusing.
    Type: Grant
    Filed: January 29, 2017
    Date of Patent: July 2, 2019
    Assignee: Nikon Corporation
    Inventor: Kosuke Machida
  • Patent number: 10295803
    Abstract: A zoom lens includes, in order from the object side, a first lens unit having a positive refractive power that does not move for zooming, second to fourth lens units each having a negative refractive power that moves for zooming, and a relay lens unit having a positive refractive power and being closest to the image side that does not move for zooming. The second lens unit moves to the image side from the wide-angle end to the telephoto end. When a focal length fx determined by a focal length fw of the zoom lens at the wide-angle end and a zoom ratio Z is fx=fw×Z0.38, the zoom lens satisfies 0.05<L2 min/L2w<0.98, where L2 min is a minimum distance between the second and third lens units in a zoom range from the wide-angle end to the focal length fx, and L2w is a distance between them at the wide-angle end.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 21, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaru Sakamoto, Masakazu Kodaira
  • Patent number: 10288850
    Abstract: An optical imaging system includes lenses. A prism is disposed adjacent to a first lens of the lenses and a second lens of the lenses, and is configured to refract light from the first lens to the second lens. A reflecting member is disposed adjacent to a fifth lens of the lenses and an imaging plane, and is configured to reflect light from the fifth lens to the imaging plane.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 14, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jung Hui Ko
  • Patent number: 10268028
    Abstract: A zoom lens consists of 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 negative refractive-power, and a fifth lens-group having positive refractive-power in this order from an object-side. The third lens-group includes a cemented lens closest to an image-side consisting of a negative lens and a positive lens in this order from the object-side, and a cemented surface of which is convex toward the object-side. Further, distances between the lens-groups change, and the fifth lens-group is fixed, and at least the first lens-group and the fourth lens-group move in such a manner that the first lens-group and the fourth lens-group are located closer to the object-side at a telephoto-end than their positions at a wide-angle-end, respectively, when magnification is changed from the wide-angle-end to the telephoto-end. Further, the following conditional expression is satisfied: 3.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 23, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Hiroki Saito
  • Patent number: 10197778
    Abstract: A zoom lens includes, in order from an object side to an image side: a negative first lens unit; a negative second lens unit; and a positive third lens unit, in which the first lens unit is not moved for zooming, the second lens unit and the third lens unit are moved during zooming, and an interval between each pair of adjacent lens units is changed during zooming, in which the first lens unit includes at least two negative lenses, and a focal length of the first lens unit, a focal length of the zoom lens at a wide angle end, a focal length of the zoom lens at a telephoto end, an interval on an optical axis between the first lens unit and the second lens unit at the wide angle end, and a back focus at the wide angle end are appropriately set.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 5, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenta Sudo, Shinji Yamasaki
  • Patent number: 10180563
    Abstract: An optical lens is provided. The optical lens includes, in order from an object side to an image-forming side, a first lens having refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having refractive power, a sixth lens having refractive power, a seventh lens having refractive power, an eighth lens having refractive power and a ninth lens having positive refractive power. The sixth lens, the seventh lens and the eighth lens constitute a composite lens, or the sixth lens and the seventh lens constitute a composite lens, or the seventh lens and the eighth lens constitute a composite lens.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 15, 2019
    Assignee: ABILITY ENTERPRISE CO., LTD.
    Inventor: Chia-Hung Chen
  • Patent number: 10133040
    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: May 21, 2016
    Date of Patent: November 20, 2018
    Assignee: Nikon Corporation
    Inventor: Atsushi Suzuki
  • Patent number: 10078202
    Abstract: Provided is a zoom lens, including: a front lens group only including one or more positive lens unit; a magnification-varying lens unit consisting of a negative lens unit which moves during zooming; and a positive rear lens group including a plurality of lens units, in which an interval between adjacent lens units is changed during zooming, in which front lens group includes a positive focusing unit La, in which rear lens group includes a focusing unit Lb, in which focusing unit La moves toward object side and focusing unit Lb moves toward one of object side and image side, during focusing from infinity to close distance, and a movement amount of focusing unit La at a wide angle end during focusing from infinity to closest distance, and a movement amount of focusing unit La at a telephoto end during focusing from infinity to closest distance are each appropriately set.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: September 18, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shunji Iwamoto
  • Patent number: 10073255
    Abstract: A single focal length lens includes an aperture stop and first through fourth lens units having, respectively, negative refractive power, positive refractive power, negative refractive power, and positive refractive power. Positions of the first, second, and fourth lens units are fixed. When focusing from an object at infinity to an object at a short distance, the third lens unit moves toward the image side. Conditional expressions (1), (2), and (3) are satisfied: ?5<f1/f<?0.5??(1), ?10<f3/f<?1??(2), and 0.5<f12/f<1??(3), where f1 denotes a focal length of the first lens unit, f denotes a focal length of an overall single focal length lens system when focusing to an object at infinity, f3 denotes a focal length of the third lens unit, and f12 denotes a combined focal length of the first and second lens units.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 11, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Masaru Morooka, Kenichi Nagasawa
  • Patent number: 10067313
    Abstract: An imaging lens includes a first lens group having positive refractive power; a second lens group having positive refractive power; and a third lens group having negative refractive power, arranged in this order from an object side to an image plane side. The first lens group includes a first lens having positive refractive power, a second lens having positive refractive power, and a third lens having negative refractive power. The second lens group includes a fourth lens and a fifth lens. The third lens group includes a sixth lens having negative refractive power and a seventh lens having negative refractive power. The first lens, the second lens, the third lens, and the seventh lens have specific Abbe's numbers. The first lens and the second lens have specific focal lengths.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 4, 2018
    Assignees: OPTICAL LOGIC INC., KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Tomohiro Yonezawa
  • Patent number: 10054779
    Abstract: An apochromatic microscope objective, including three optical sub-systems, wherein starting from the object plane, the first sub-system includes a meniscus and a convergent lens, wherein the meniscus is curved towards the object plane, the second sub-system is made up of three elements, wherein a first element includes a meniscus or a cemented element, a second element is configured as a collecting cemented element and a third element is a cemented element, and wherein either the first element or the third element is strongly scattering and the third sub-system has at least one cemented element with a collecting lens.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 21, 2018
    Assignee: Carl Zeiss Microscopy GmbH
    Inventor: Rolf Wartmann
  • Patent number: 9989742
    Abstract: In an optical system (ZL) capable of imaging in a plurality of object side media (for instance, air and water) whose refractive indexes are different from each other, the optical system is composed of, in order from an object, a front lens group (G1) whose position in an optical axis fixed, and a rear lens group (for instance, G2 to G4), and the rear lens group comprises at least two moving lens groups (for instance, G2 and G3), and at least two moving lens groups in the rear lens group are moved along the optical axis upon changing between object side media.
    Type: Grant
    Filed: July 16, 2016
    Date of Patent: June 5, 2018
    Assignee: Nikon Corporation
    Inventor: Atsushi Shibayama
  • Patent number: 9979892
    Abstract: A zoom lens includes a front lens group having a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, an aperture stop, and a rear lens group having a plurality of lens units. The first lens unit is fixed at the time of zooming, the first lens unit includes a first lens subunit having a negative refractive power, which is fixed at the time of focusing and a second lens subunit having a positive refractive power, which moves at the time of focusing. The second lens subunit is arranged at a position adjacent to the first lens subunit on the image side thereof, and the rear lens group includes a lens unit moving in a direction of an optical axis so that an imaging magnification at a telephoto end is larger than an imaging magnification at a wide-angle end.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 22, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ken Wada
  • Patent number: 9964743
    Abstract: Provided is a zoom lens, including, in order from an object side to an image side: a positive first lens unit; a negative second lens unit; a positive third lens unit; and a rear lens group including at least one lens unit, in which the first lens unit is not configured to move for zooming, and the second lens unit, the third lens unit, and at least one lens unit included in the rear lens group are configured to move during zooming so that intervals between adjacent lens units are changed during zooming. A lateral magnification of the second lens unit at a wide angle end, a lateral magnification of the second lens unit at a telephoto end, a movement amount of the third lens unit during zooming from the wide angle end to the telephoto end, and a total length of the zoom lens are appropriately set.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: May 8, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yosuke Eguchi
  • Patent number: 9952413
    Abstract: Provided are an imaging lens, which is a wide-angle imaging lens and is capable of satisfactorily correcting various aberrations, and an imaging apparatus which includes this imaging lens. The imaging lens consists of, in order from an object side: a first lens L1 that has a negative refractive power; a second lens L2 that has a negative refractive power; a third lens L3 that has a positive refractive power; a fourth lens L4 that has a negative refractive power; a fifth lens L5 that has a positive refractive power; a sixth lens L6 that has a positive refractive power; and a seventh lens L7 that has a negative refractive power. The following conditional expression (1) is satisfied. ?2<f/f12<?1.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: April 24, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Yu Kitahara, Takeshi Kamiya
  • Patent number: 9939610
    Abstract: A single focal length lens system, in order from an object side to an image side, includes a first lens unit having optical power, an aperture diaphragm, and a second lens unit having positive optical power is provided. The first lens unit, in order from the object side to the image side, includes a first sub-lens unit having negative optical power, and a second sub-lens unit having positive optical power. The single focal length lens system satisfies the following condition: |dn/dt|MAX?2.67×10?5 (|dn/dt|MAX: a maximum value of absolute values of relative refractive index temperature coefficients in the atmosphere at 0 to 20° C. with respect to light having a wavelength range of 580 to 640 nm, which is calculated for each lens element constituting the second sub-lens unit).
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 10, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kenichi Emi
  • Patent number: 9933603
    Abstract: A zoom lens, includes, in order from an object side: a positive first lens unit; a negative second lens unit; and a rear lens group that includes at least two lens units and is positive as a whole over an entire zoom range, intervals between adjacent lens units changing during zooming. The second lens unit includes at least two negative lenses successively arranged including a first negative lens arranged closest to the object side and a second negative lens, an object-side surface of the first negative lens includes an aspherical surface having a positive aspherical surface amount; and an image-side surface of the first negative lens and surfaces of the second negative lens include a surface having an aspherical surface having a positive aspherical surface amount and a surface having an aspherical surface having a negative aspherical surface amount.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 3, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shigenobu Sugita
  • Patent number: 9885857
    Abstract: A zoom lens system including, in an order from an object to an image: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; and a fourth lens group having positive refractive power, wherein zooming is performed by changing intervals between the first through fourth lens groups, and a lens included in the fourth lens group satisfies: vd_10>75, wherein vd_10 denotes an Abbe number of a line d of the lens included in the fourth lens group.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: February 6, 2018
    Assignee: Hanwha Techwin Co., Ltd.
    Inventor: Ji-sung Kim
  • Patent number: 9857569
    Abstract: A combined lens module including plural lens modules deposited within a housing is provided. These lens modules include plural lenses and multiple apertures. Each lens has a main lens element for visible light and an associate lens element for invisible light. An image capturing-and-sensing assembly may be performed by equipping with such a combined lens module and a sensor for visible light and invisible light, which could have high-resolution and apply to a thin portable device or any environment in use of infrared structured lighting or light scanner for the applications of human-machine interactive.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: January 2, 2018
    Assignee: EVERREADY PRECISION IND. CORP.
    Inventors: Jyh-Long Chern, Chih-Ming Yen
  • Patent number: 9851582
    Abstract: Provided is a zoom lens, comprising, in order from an object side to an image side, first to fourth lens units having positive, negative, positive, and positive refractive powers. During zooming, first lens unit does not move, and second to fourth lens units move. Third lens unit comprises, in order from the object side to the image side, first and second lens subunits each having a positive refractive power. Second lens subunit moves in a direction having a component of a direction perpendicular to an optical axis during image blur correction. Third lens unit comprises at least two positive lenses and at least two negative lenses. Second lens subunit comprises a positive lens and a negative lens. A focal length (f2) of second lens unit, a focal length (f3) of third lens unit, and a focal length (f3b) of second lens subunit are each appropriately set.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: December 26, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuyuki Miyazawa
  • Patent number: 9829686
    Abstract: A zoom lens consists of 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 negative refractive power, and a fifth lens group having positive refractive power in this order from an object side. The third lens group includes a cemented lens closest to the object side and a cemented lens closest to an image side, and the fourth lens group consists of a negative lens and a positive lens in this order from the object side. Distances between the lens groups change, and the fifth lens group is fixed, and at least the first lens group and the fourth lens group move when magnification is changed from the wide angle end to the telephoto end.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: November 28, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Hiroki Saito
  • Patent number: 9829685
    Abstract: The optical system of the present invention includes, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; and a third lens group G3 having positive refractive power, wherein the first lens group G1 and the third lens group G3 are fixed in an optical axis direction, while the second lens group G2 is moved in the optical axis direction to focus on from an object at infinity to an object at a finite distance, the third lens group G3 includes, in order from the object side: an object-side group G3a; an aperture stop S; and an image-side group G3b, and a specified condition is satisfied.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: November 28, 2017
    Assignee: Tamron Co., Ltd.
    Inventors: Hisayuki Yamanaka, Keisuke Okada, Yoshito Iwasawa
  • Patent number: 9804370
    Abstract: A zoom lens system including, in order from an object side to an image side, a first lens unit having a positive refractive power that does not move for zooming, a second lens unit having a negative refractive power that moves during zooming, and a third lens unit having a positive refractive power that moves during zooming. In the zoom lens system, a distance between lens units that are adjacent to each other changes during zooming, the first lens unit includes a first a-lens unit that does not move for focusing, and a first b-lens unit that moves from the image side towards the object side during focusing from an infinite object to a near object, and the first a-lens unit comprises two positive lenses and two negative lenses.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: October 31, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masaru Sakamoto
  • Patent number: 9798122
    Abstract: A zoom lens system includes a positive first lens group, a negative second lens group, in that order from the object side, and a positive nth lens group provided closest to the image side. During zooming from the short to long focal length extremities, the first lens group and the nth lens group remain stationary and the second lens group moves. A positive mth lens group is provided between the second and nth lens groups. The following conditions (1) and (2) are satisfied: 1.23<f1/fn<1.50??(1), and 1.20<fn/fm<1.60??(2), wherein f1, fn and fm designate the focal lengths of the first, nth and mth lens groups, respectively, wherein n is a positive integer of 4 or greater, and m is a positive integer of 3 or greater.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: October 24, 2017
    Assignee: RICOH IMAGING COMPANY, LTD.
    Inventor: Masakazu Saori
  • Patent number: 9766431
    Abstract: An imaging lens includes: a movable lens group configured to travel to allow the imaging lens to come into focus; and a rearmost lens group arranged at a most-image-sided fixed position, and having negative refractive power. Following conditional expression is satisfied, ?2<ft/fr<?0.45??(1) where ft is a total focal length of the imaging lens in a condition that the imaging lens is in focus on an object at infinite, and fr is a focal length of the rearmost lens group.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 19, 2017
    Assignee: SONY CORPORATION
    Inventors: Fumikazu Kanetaka, Hisashi Uno
  • Patent number: 9746651
    Abstract: A zoom lens system according to the present disclosure includes, in order from an object side to an image plane side, a first lens group having positive optical power; a second lens group having negative optical power; a third lens group having positive optical power; and a subsequent lens group including a fourth lens group, a fifth lens group, and a sixth lens group. The first lens group comprises, in order from the object side, a first lens element having negative optical power; a second lens element having positive optical power; a third lens element having positive optical power; and a fourth lens element having positive optical power. The fifth lens group in the subsequent lens group has negative optical power. The first lens group is fixed with respect to the image plane in zooming from a wide-end to a tele-end upon image shooting.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: August 29, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Qinghua Zhao, Yoshiyuki Hisatomi, Takuya Imaoka
  • Patent number: 9720215
    Abstract: A zoom lens including first to seventh lens units arranged in this order from an object side to an image side is provided. The first to seventh lens units respectively have refractive powers of negative, positive, negative, positive, positive, negative. The first to seventh lens units are disposed along an optical axis of the zoom lens, and a distance between the seventh lens and the image side is fixed, and the first lens unit, the second lens unit, the third lens unit, the fourth lens unit, the fifth lens unit and the sixth lens unit are adapted to move along the optical axis between the object side and the image side.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 1, 2017
    Assignee: Coretronic Corporation
    Inventors: Tao-Hung Kuo, Ching-Chuan Wei, Chuan-Te Cheng
  • Patent number: 9715127
    Abstract: A compact imaging lens includes, in order from an object side: a first lens group having positive refractive power and consisting of a single lens element; and a second lens group having positive refractive power and consisting of a plurality of lens components. A position of the first lens group is fixed with respect to an image plane. At least a portion of the second lens group is moved as a shift lens group in a direction including a component perpendicular to an optical axis. Specified conditional expressions are satisfied.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: July 25, 2017
    Assignee: Nikon Corporation
    Inventor: Toshinori Take
  • Patent number: 9703082
    Abstract: An imaging zoom lens system includes a first lens group, a second lens group and a third lens group in sequence along an optical axis of the imaging zoom lens. Through designs of structural relationships among the first to third lens groups and relevant optical parameters, the imaging zoom lens system is able to increase a focusing speed at a telephoto end to approach a focusing speed at a wide angle end.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: July 11, 2017
    Assignee: Tan Cian Technology Co., Ltd.
    Inventor: Shih-Yuan Chang
  • Patent number: 9696530
    Abstract: A zoom lens system includes a plurality of lens groups, a lens group of which is moved to perform zooming, wherein a specified lens group of the lens groups is a focusing lens group; a normal photography mode in which focusing is carried out from infinity to a predetermined photographing distance by moving the focusing lens group of the specified lens group; and a shifting mode which shifts from the normal photography mode to a macro photography mode by moving a lens element of the specified lens group other than the focusing lens group when focusing on an object at a photographing distance that is shorter than the predetermined photographing distance. When the zoom lens system is in the macro photography mode, focusing is carried out from the predetermined photographing distance to a minimum photographing distance by moving the focusing lens group.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: July 4, 2017
    Assignee: RICOH IMAGING COMPANY, LTD.
    Inventor: Takashi Enomoto
  • Patent number: 9638904
    Abstract: In a zoom lens including, in order from an object side: a front group including at least one lens unit; a positive lens unit; and a negative lens unit, an interval between the lens units adjacent to each other is changed during zooming, a combined focal length of the front group is negative at a wide angle end, the positive lens unit moves toward the object side during zooming from the wide angle end to a telephoto end, the negative lens unit moves toward the image side during focusing from infinity to proximity at a first zoom position, and during focusing from infinity to proximity at a second zoom position, which is on a telephoto side of the first zoom position, the positive lens unit moves toward the image side, and the negative lens unit moves toward the object side.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 2, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shigenobu Sugita
  • Patent number: 9606329
    Abstract: An imaging lens consists of, in order from the object side, a negative first lens, a positive second lens, a positive third lens, a negative fourth lens, a positive fifth lens, a positive sixth lens, and a negative seventh lens. When f12 is the combined focal length of the first lens and the second lens, f is the focal length of the entire system, ?d7 and ?d3 are respectively the Abbe's numbers of the materials of the seventh lens and the third lens with respect to the d line, the following conditional formulae are satisfied: f12/f<?3.2??(1) ?d7<55??(2) 40<?d3??(3).
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: March 28, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Taro Asami
  • Patent number: 9557529
    Abstract: The present invention provides a camera device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements, the view angle of the optical imaging lens is efficiently increased to provide better optical characteristics.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: January 31, 2017
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Poche Lee, Chih Yang Yeh, Tzu-chien Tang
  • Patent number: 9557544
    Abstract: A zoom lens includes, in order from object side to image side, a first lens unit having a negative refractive power and a second lens unit having a positive refractive power. During zooming, the first lens unit and the second lens unit move so that the distance between the first lens unit and the second lens unit changes. The first lens unit includes at least one positive lens and at least one negative lens. The total length of the zoom lens at the wide angle end, the back focal length at the wide angle end, the focal length of the zoom lens at the telephoto end, the focal length of the first lens unit, the focal length of the second lens unit, and the refractive index of the material of the at least one positive lens included in the first lens unit are each appropriately set according to mathematical conditions.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: January 31, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shin Kuwashiro
  • Patent number: 9541746
    Abstract: An optical system includes, a front lens unit having a positive refractive power, an aperture stop, and a rear lens unit having a positive refractive power, wherein the front lens unit includes an FB lens system, and an FA lens system, the FB and FA lens systems being configured to move appropriately, when shifting a focus from an object at a long distance to an object at a short distance. A focal length fFB of the FB lens system and a focal length f of the entire optical system are appropriately set.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: January 10, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takayoshi Yokoyama
  • Patent number: 9544571
    Abstract: The technology relates to an image pickup unit, an image pickup device, a picture processing method, a diaphragm control method, and program that are capable of suppressing deterioration in quality of a stereoscopic picture. A parallax detection pixel 230 receives object light by a plurality of photodetectors covered with one microlens, to generate a signal used for detecting parallax. G pixels 227 and 228, an R pixel 226, and a B pixel 229 each receive the object light to generate a signal used for generating a planar picture. A parallax detection section 320 detects parallax based on the signal generated by the parallax detection pixels 230. A 2D picture generation section 310 generates a planar picture based on a signal generated by picture generation pixels. A 3D picture generation section 330 adjusts a position of each object image included in the planar picture, based on the detected parallax, to generate a stereoscopic picture.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 10, 2017
    Assignee: Sony Corporation
    Inventor: Tomohiro Yamazaki
  • Patent number: 9535239
    Abstract: A zoom lens consists of, in order from the object side, a positive first lens group, a negative second lens group, a negative third lens group, a negative fourth lens group, a positive fifth lens group, and a positive sixth lens group. The first lens group and the sixth lens group are fixed with respect to an image plane, and a distance between the first lens group and the second lens group increases, a distance between the second lens group and the third lens group changes, and a distance between the third lens group and the fourth lens group changes, and a distance between the fourth lens group and the fifth lens group changes, and a distance between the fifth lens group and the sixth lens group changes during magnification change from a wide angle end to a telephoto end.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: January 3, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Daiki Komatsu, Michio Cho
  • Patent number: 9494776
    Abstract: A zoom lens consists essentially of, in order from the object side: a positive first lens group that is fixed during magnification change; a moving lens group consisting of at least two lens groups that are moved along the optical axis direction to change an air space therebetween during magnification change; a stop; and a positive end lens group that is fixed during magnification change. The first lens group consists of, in order from the object side, a negative first lens-group front group, a positive first lens-group middle group, and a positive first lens-group rear group. During focusing, only the first lens-group middle group is moved along the optical axis direction. The first lens-group middle group includes at least one aspheric lens that satisfies predetermined condition expressions.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 15, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Yukiko Nagatoshi